Product Description
Single Double Stage Industrial AC DC Liquid Water Cooling Ring Piston Rotary Vane Dry Screw Scroll Roots Air Vakuum Vacuum Pump Replace of Kinney KLRC KT KMBD
Product Description
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KT Single-Stage Rotary Piston Vacuum Pump |
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• High pumping capacity at high and low pressures Three-cylinder piston design: dynamic balance, almost no vibration • No metal contact between pump pistons The cylinder clearance is full of oil • Quiet operation Application: Heat Treating, Coating, Transformer Drying, Metallurgy, Vacuum packaging, Vacuum furnace, Vacuum coating, Liquid Gas Storage, Brake Fluid Filling, Silicon Crystal Growing, Evacuation
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KLRC Two-stage water-ring vacuum pump |
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| Drop down to 4 Torr (5.3 mbar a) • Low-pressure performance limited by steam. The pressure of sealing liquid: water, oil, or process liquid • Provide complete engineering system solutions: Instruments, controls, piping, and valves • Independent liquid recovery and recycling • The central anchor rod is allowed to enter. Pump end without complete disassembly • KLRC75 provides dual mechanical seals Through KLRC525, to meet the requirements of the API pipeline plan. Applications:
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| Roots pump | ||||||||||||||||
| • High volume of gas at high vacuum (50 Torr to micrometer range) • Can be used with all types of vacuum pumps • Designed to operate in a blank state of 82 dB (A) or less open ground; except for motor and background noise • Heavy-duty drive shafts for direct coupling or Belt Drive Applications • Standard building material: cast iron end plate, the fit of housing and port with nodular cast iron rotor and shaft • Special materials provided » Stainless steel, carbon steel, ductile iron, Bi Protec • Special tests available » Hydrostatic test to 150 PSIG (10.35 bar g), seal leak test, noise test Application:
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| Single Stage Rotary Vane Pump | ||||||||||||||||
| • Vacuum packaging and food processing technology Thermoforming, blister, air compression, foam forming • Vacuum Adsorption, sling • Vacuum degassing, drying, crystallization, impregnationprecooling • Vacuum pressing, laminating, setting • Vacuum coating and industrial CZPT as the front pump and pre-pump two
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| Two Stage Rotary Vane Pump | ||||||||||||||||
| • Electronics, semiconductor, and coating industries Vacuum oven, sapphire furnace, polycrystalline furnace, single crystal furnace, vacuum dewatering furnace, vacuum sintering furnace, etc.; Optical coating, ion plating, sputtering equipment; Plasma cleaning; As the front auxiliary pump of Roots pump, diffusion pump, molecular pump, etc. • Various analytical instruments Spectrometer, spectrometer, physical and chemical analyzer, leak detector, glove box, etc. • Medical Industry Plasma sterilizer, vacuum CZPT drying, etc. • Refrigeration industry Automatic evacuation lines of air conditioners, refrigerators, and compressors, refrigerant injection machines, helium leak detection series, etc |
Comparison of replacement models
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Our Model |
Kinney’s Model |
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Our Model |
Kinney’s Model |
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TWO STAGE WATER-RING VACUUM PUMP |
SINGLE STAGE ROTARY PISTON VACUUM PUMP |
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LP40 |
KLRC100 |
PP70 |
KT150 |
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LP55 |
KLRC125 |
PP150 |
KT300 |
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LP75 |
KLRC200 |
PP70B |
KT150(here are differenets from shape and oil channel design) |
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LP115 |
KLRC300 |
ROOTS PUMP |
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LP200 |
KLRC525 |
VP200 |
KMBD540 |
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VP600 |
KMBD2000 |
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Company Profile
The main products are water ring vacuum pumps (including 2BV series, 2BE1 series, 2BE3 series, 2SK series, SK series), rotary vane vacuum pumps (2X series, XD series), roots vacuum pumps, screw vacuum pumps, reciprocating vacuum pumps, vacuum pump stations, vacuum units and accessories, vacuum complete equipment, etc. According to different types of vacuum pumps and different production process requirements of customers, there are also many kinds of materials, mainly including cast iron, stainless steel 304, stainless steel 316, stainless steel 316L, etc. The material quality of non proud products is guaranteed. If the product has quality problems, it will be replaced within 3 months and guaranteed for 1 year. 1. Special materials, specifications and requirements can be customized through negotiation between the supplier and the demander. 2. Provide design, processing, sales and maintenance of vacuum units and complete vacuum equipment. 3. The price will fluctuate due to different product requirements, specifications and materials. The above prices are only for reference. We will provide a suitable design scheme and quotation for your vacuum system according to your specific requirements,
| After-sales Service: | 5 Years |
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| Warranty: | 5 Years |
| Oil or Not: | Optional |
| Structure: | Rotary Vacuum Pump |
| Exhauster Method: | Entrapment Vacuum Pump |
| Vacuum Degree: | Vacuum |
| Samples: |
US$ 999/Piece
1 Piece(Min.Order) | |
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Screw Sizes and Their Uses
Screws have different sizes and features. This article will discuss screw sizes and their uses. There are two main types: right-handed and left-handed screw shafts. Each screw features a point that drills into the object. Flat tipped screws, on the other hand, need a pre-drilled hole. These screw sizes are determined by the major and minor diameters. To determine which size of screw you need, measure the diameter of the hole and the screw bolt’s thread depth.
The major diameter of a screw shaft
The major diameter of a screw shaft is the distance from the outer edge of the thread on one side to the tip of the other. The minor diameter is the inner smooth part of the screw shaft. The major diameter of a screw is typically between two and sixteen inches. A screw with a pointy tip has a smaller major diameter than one without. In addition, a screw with a larger major diameter will have a wider head and drive.
The thread of a screw is usually characterized by its pitch and angle of engagement. The pitch is the angle formed by the helix of a thread, while the crest forms the surface of the thread corresponding to the major diameter of the screw. The pitch angle is the angle between the gear axis and the pitch surface. Screws without self-locking threads have multiple starts, or helical threads.
The pitch is a crucial component of a screw’s threading system. Pitch is the distance from a given thread point to the corresponding point of the next thread on the same shaft. The pitch line is one element of pitch diameter. The pitch line, or lead, is a crucial dimension for the thread of a screw, as it controls the amount of thread that will advance during a single turn.
The pitch diameter of a screw shaft
When choosing the appropriate screw, it is important to know its pitch diameter and pitch line. The pitch line designates the distance between adjacent thread sides. The pitch diameter is also known as the mean area of the screw shaft. Both of these dimensions are important when choosing the correct screw. A screw with a pitch of 1/8 will have a mechanical advantage of 6.3. For more information, consult an application engineer at Roton.
The pitch diameter of a screw shaft is measured as the distance between the crest and the root of the thread. Threads that are too long or too short will not fit together in an assembly. To measure pitch, use a measuring tool with a metric scale. If the pitch is too small, it will cause the screw to loosen or get stuck. Increasing the pitch will prevent this problem. As a result, screw diameter is critical.
The pitch diameter of a screw shaft is measured from the crest of one thread to the corresponding point on the next thread. Measurement is made from one thread to another, which is then measured using the pitch. Alternatively, the pitch diameter can be approximated by averaging the major and minor diameters. In most cases, the pitch diameter of a screw shaft is equal to the difference between the two.
The thread depth of a screw shaft
Often referred to as the major diameter, the thread depth is the outermost diameter of the screw. To measure the thread depth of a screw, use a steel rule, micrometer, or caliper. In general, the first number in the thread designation indicates the major diameter of the thread. If a section of the screw is worn, the thread depth will be smaller, and vice versa. Therefore, it is good practice to measure the section of the screw that receives the least amount of use.
In screw manufacturing, the thread depth is measured from the crest of the screw to the root. The pitch diameter is halfway between the major and minor diameters. The lead diameter represents the amount of linear distance traveled in one revolution. As the lead increases, the load capacity decreases. This measurement is primarily used in the construction of screws. However, it should not be used for precision machines. The thread depth of a screw shaft is essential for achieving accurate screw installation.
To measure the thread depth of a screw shaft, the manufacturer must first determine how much material the thread is exposed to. If the thread is exposed to side loads, it can cause the nut to wedge. Because the nut will be side loaded, its thread flanks will contact the nut. The less clearance between the nut and the screw, the lower the clearance between the nut and the screw. However, if the thread is centralized, there is no risk of the nut wedgeing.
The lead of a screw shaft
Pitch and lead are two measurements of a screw’s linear distance per turn. They’re often used interchangeably, but their definitions are not the same. The difference between them lies in the axial distance between adjacent threads. For single-start screws, the pitch is equal to the lead, while the lead of a multi-start screw is greater than the pitch. This difference is often referred to as backlash.
There are two ways to calculate the pitch and lead of a screw. For single-start screws, the lead and pitch are equal. Multiple-start screws, on the other hand, have multiple starts. The pitch of a multiple-start screw is the same as its lead, but with two or more threads running the length of the screw shaft. A square-thread screw is a better choice in applications requiring high load-bearing capacity and minimal friction losses.
The PV curve defines the safe operating limits of lead screw assemblies. It describes the inverse relationship between contact surface pressure and sliding velocity. As the load increases, the lead screw assembly must slow down in order to prevent irreversible damage from frictional heat. Furthermore, a lead screw assembly with a polymer nut must reduce rpm as the load increases. The more speed, the lower the load capacity. But, the PV factor must be below the maximum allowed value of the material used to make the screw shaft.
The thread angle of a screw shaft
The angle between the axes of a thread and the helix of a thread is called the thread angle. A unified thread has a 60-degree angle in all directions. Screws can have either a tapped hole or a captive screw. The screw pitch is measured in millimeters (mm) and is usually equal to the screw major diameter. In most cases, the thread angle will be equal to 60-degrees.
Screws with different angles have various degrees of thread. Originally, this was a problem because of the inconsistency in the threading. However, Sellers’s thread was easier to manufacture and was soon adopted as a standard throughout the United States. The United States government began to adopt this thread standard in the mid-1800s, and several influential corporations in the railroad industry endorsed it. The resulting standard is called the United States Standard thread, and it became part of the ASA’s Vol. 1 publication.
There are two types of screw threads: coarse and fine. The latter is easier to tighten and achieves tension at lower torques. On the other hand, the coarse thread is deeper than the fine one, making it easier to apply torque to the screw. The thread angle of a screw shaft will vary from bolt to bolt, but they will both fit in the same screw. This makes it easier to select the correct screw.
The tapped hole (or nut) into which the screw fits
A screw can be re-threaded without having to replace it altogether. The process is different than that of a standard bolt, because it requires threading and tapping. The size of a screw is typically specified by its major and minor diameters, which is the inside distance between threads. The thread pitch, which is the distance between each thread, is also specified. Thread pitch is often expressed in threads per inch.
Screws and bolts have different thread pitches. A coarse thread has fewer threads per inch and a longer distance between threads. It is therefore larger in diameter and longer than the material it is screwed into. A coarse thread is often designated with an “A” or “B” letter. The latter is generally used in smaller-scale metalworking applications. The class of threading is called a “threaded hole” and is designated by a letter.
A tapped hole is often a complication. There is a wide range of variations between the sizes of threaded holes and nut threads, so the tapped hole is a critical dimension in many applications. However, even if you choose a threaded screw that meets the requisite tolerance, there may be a mismatch in the thread pitch. This can prevent the screw from freely rotating.
editor by CX 2023-11-14
China Dc Photovoltaic Brushless Hybrid 3 Hp 12 Volt Water Pump 100M Head Lift 24 Volts Solar Water Pump Submersible threaded shaft adapter
Warranty: 2 year
Customized support: OEM, ODM, OBM
Model Number: 3DSS2.0-150-72-750,3DSS2.2-180-72-1100
Application: Commercial Buildings, Drinking water treatment, Family Homes, Food and Beverage Industry, CZPT OEM, Irrigation and Agriculture, Machining, Marine, Water Distribution, Water Treatment Solutions, Washing and Cleaning, Factory sale CZPT harvest part ER112 short balance wheel 5H881-2319-2 wastewater treatment, Other, Submersible
Horsepower: 1.0hp,1.5hp
Power Source: Electric
Pressure: High Pressure
Structure: SCREW PUMP
Cable Length: 2m
Outlet Size: 3/4 inch
Voltage: DC 72V
Power: 750w,1100w
Usage: Water
Theory: SCREW PUMP
Minimum well diameter: 3
Material: Stainless Steel
Motor: 100% Copper Wire
Outlet/Inlet: stainless steel
Bearing: NSK
Shaft: 321 S/S motor shaft
Packaging Details: Strong carton or wooden case suitable for international transportation
Port: FOB HangZhou
Products Description Application-Agriculture irrigation, CZPT feeding, -Domestic water lifting-Clear water supply from wells or reservoirs-Off grid solar pumping system
| Pump Features | MPPT DC Controller |
Screw Shaft Types and Uses
Various uses for the screw shaft are numerous. Its major diameter is the most significant characteristic, while other aspects include material and function are important. Let us explore these topics in more detail. There are many different types of screw shafts, which include bronze, brass, titanium, and stainless steel. Read on to learn about the most common types. Listed below are some of the most common uses for a screw shaft. These include: C-clamps, screw jacks, vises, and more.
Major diameter of a screw shaft
A screw’s major diameter is measured in fractions of an inch. This measurement is commonly found on the screw label. A screw with a major diameter less than 1/4″ is labeled #0 to #14; those with a larger diameter are labeled fractions of an inch in a corresponding decimal scale. The length of a screw, also known as the shaft, is another measure used for the screw.
The major diameter of a screw shaft is the greater of its two outer diameters. When determining the major diameter of a screw, use a caliper, micrometer, or steel rule to make an accurate measurement. Generally, the first number in the thread designation refers to the major diameter. Therefore, if a screw has a thread of 1/2-10 Acme, the major diameter of the thread is.500 inches. The major diameter of the screw shaft will be smaller or larger than the original diameter, so it’s a good idea to measure the section of the screw that’s least used.
Another important measurement is the pitch. This measures the distance between one thread’s tip and the next thread’s corresponding point. Pitch is an important measurement because it refers to the distance a screw will advance in one turn. While lead and pitch are two separate concepts, they are often used interchangeably. As such, it’s important to know how to use them properly. This will make it easier to understand how to select the correct screw.
There are three different types of threads. The UTS and ISO metric threads are similar, but their common values for Dmaj and Pmaj are different. A screw’s major diameter is the largest diameter, while the minor diameter is the lowest. A nut’s major diameter, or the minor diameter, is also called the nut’s inside diameter. A bolt’s major diameter and minor diameter are measured with go/no-go gauges or by using an optical comparator.
The British Association and American Society of Mechanical Engineers standardized screw threads in the 1840s. A standard named “British Standard Whitworth” became a common standard for screw threads in the United States through the 1860s. In 1864, William Sellers proposed a new standard that simplified the Whitworth thread and had a 55 degree angle at the tip. Both standards were widely accepted. The major diameter of a screw shaft can vary from one manufacturer to another, so it’s important to know what size screw you’re looking for.
In addition to the thread angle, a screw’s major diameter determines the features it has and how it should be used. A screw’s point, or “thread”, is usually spiky and used to drill into an object. A flat tipped screw, on the other hand, is flat and requires a pre-drilled hole for installation. Finally, the diameter of a screw bolt is determined by the major and minor diameters.
Material of a screw shaft
A screw shaft is a piece of machine equipment used to move raw materials. The screw shaft typically comprises a raw material w. For a particular screw to function correctly, the raw material must be sized properly. In general, screw shafts should have an axial-direction length L equal to the moving amount k per 1/2 rotation of the screw. The screw shaft must also have a proper contact angle ph1 in order to prevent raw material from penetrating the screw shaft.
The material used for the shaft depends on its application. A screw with a ball bearing will work better with a steel shaft than one made of aluminum. Aluminum screw shafts are the most commonly used for this application. Other materials include titanium. Some manufacturers also prefer stainless steel. However, if you want a screw with a more modern appearance, a titanium shaft is the way to go. In addition to that, screws with a chromium finish have better wear resistance.
The material of a screw shaft is important for a variety of applications. It needs to have high precision threads and ridges to perform its function. Manufacturers often use high-precision CNC machines and lathes to create screw shafts. Different screw shafts can have varying sizes and shapes, and each one will have different applications. Listed below are the different materials used for screw shafts. If you’re looking for a high-quality screw shaft, you should shop around.
A lead screw has an inverse relationship between contact surface pressure and sliding velocity. For heavier axial loads, a reduced rotation speed is needed. This curve will vary depending on the material used for the screw shaft and its lubrication conditions. Another important factor is end fixity. The material of a screw shaft can be either fixed or free, so make sure to consider this factor when choosing the material of your screw. The latter can also influence the critical speed and rigidity of the screw.
A screw shaft’s major diameter is the distance between the outer edge of the thread and the inner smooth part. Screw shafts are typically between two and sixteen millimeters in diameter. They feature a cylindrical shape, a pointy tip, and a wider head and drive than the former. There are two basic types of screw heads: threaded and non-threaded. These have different properties and purposes.
Lead screws are a cost-effective alternative to ball screws, and are used for low power and light to medium-duty applications. They offer some advantages, but are not recommended for continuous power transmission. But lead screws are often quieter and smaller, which make them useful for many applications. Besides, they are often used in a kinematic pair with a nut object. They are also used to position objects.
Function of a screw shaft
When choosing a screw for a linear motion system, there are many factors that should be considered, such as the position of the actuator and the screw and nut selection. Other considerations include the overall length of travel, the fastest move profile, the duty cycle, and the repeatability of the system. As a result, screw technology plays a critical role in the overall performance of a system. Here are the key factors to consider when choosing a screw.
Screws are designed with an external threading that digs out material from a surface or object. Not all screw shafts have complete threading, however. These are known as partially threaded screws. Fully threaded screws feature complete external threading on the shaft and a pointed tip. In addition to their use as fasteners, they can be used to secure and tighten many different types of objects and appliances.
Another factor to consider is axial force. The higher the force, the bigger the screw needs to be. Moreover, screws are similar to columns that are subject to both tension and compression loads. During the compression load, bowing or deflection is not desirable, so the integrity of the screw is important. So, consider the design considerations of your screw shaft and choose accordingly. You can also increase the torque by using different shaft sizes.
Shaft collars are also an important consideration. These are used to secure and position components on the shaft. They also act as stroke limiters and to retain sprocket hubs, bearings, and shaft protectors. They are available in several different styles. In addition to single and double split shaft collars, they can be threaded or set screw. To ensure that a screw collar will fit tightly to the shaft, the cap must not be overtightened.
Screws can be cylindrical or conical and vary in length and diameter. They feature a thread that mates with a complementary helix in the material being screwed into. A self-tapping screw will create a complementary helix during driving, creating a complementary helix that allows the screw to work with the material. A screw head is also an essential part of a screw, providing gripping power and compression to the screw.
A screw’s pitch and lead are also important parameters to consider. The pitch of the screw is the distance between the crests of the threads, which increases mechanical advantage. If the pitch is too small, vibrations will occur. If the pitch is too small, the screw may cause excessive wear and tear on the machine and void its intended purpose. The screw will be useless if it can’t be adjusted. And if it can’t fit a shaft with the required diameter, then it isn’t a good choice.
Despite being the most common type, there are various types of screws that differ in their functions. For example, a machine screw has a round head, while a truss head has a lower-profile dome. An oval-its point screw is a good choice for situations where the screw needs to be adjusted frequently. Another type is a soft nylon tip, which looks like a Half-dog point. It is used to grip textured or curved surfaces.
editor by czh 2023-06-27
China Shenzhen Custom Manufactured CNC Metal Clean Machined Stainless Steel Alloy Single Screw Pump Stator, Rotor Coupling Rod, Drive Shaft wholesaler
Product Description
HangZhou Custom manufactured CNC metal clean machined stainless steel alloy single Screw pump Stator, Rotor Coupling Rod, Drive shaft
Click here and specify your inquiry, contact us to get an online quote now!
How to get a quote?
1. First: Email us and offer your 3D drawing/2D drawing to us to quote.
2. Second: Let us know the required material, surface finish and special tolerance requirements, quantity information, we’ll arrange for our engineer to review your drawings and quote soon!
Note: Workable 3D Drawing Formats: STEP/IGS/X_T/STL/SOLIDWORKS etc, 2D Drawing with PDF will do.
Project Support: Free Sample Offered Before Production starts
Examples projects
What we can offer
| Advantages | »Free sample offered before production »Good machining quality and warm service »Reasonable Pricing and outstanding quality provided »Competitive shipping cost service with discount sometimes »MOQ 1PCS and small quantity order accepted, mass production supported »Professional engineering service when any modification required »Any turnkey assembly or customized package requirements, we’ll meet your demands! |
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| Equipment |
»20 sets of CNC turning machines; »30 sets of the most technologically advanced machining CNC milling machines; »25 sets of Multi-Spindle Japan Precision Swiss CNC lathes |
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| RFQ | Customer Inquiry →Engineering Communication →Cost Analysis →Sales Analysis →Quote to Customer » 1-3 Work Days Only » Submit RFQ with complete commercial terms |
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| Sample Making | Sample Order → Engineering Review → Sample Plan to Customer → Sample Status Tracking → Submit Samples with Doc. » Sample L/T: 1 week » Continuous Sample Status Tracking » Complete Documents for sample approval |
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| Order Management | CRM System → Open Order Confirm → Logistic Arrangement. » Production L/T: 2-4 wks » Weekly Open Order Confirm » Preferred 3PL Service to Customers |
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| Quality Control | Certificates: RoHS, ISO9001:2008, SGS. IQC → IPQC → OQC/FQC → Quality Complain Feedback → Audit & Training. » Plant Audit and Qualified by world famous company » Strict Quality Management Procedure with Traceability |
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| Application | »Aerospace »Automotive »Lighting fittings »Motorbike »PhotoGear »EDC Tools » Marine »Office equipment »Home appliance »Medical equipment »Telecommunication »Electrical & Electronics »Fire detection system, etc. |
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Production information
1). Material Capabilities: Following GB, DIN, and ISO and applying good quality homemade and import materials, we have already provided single/assembly products for international customers mainly from the USA and Europe, etc.
| Stainless Steel | SS201, SS301, SS303, SS304, SS316, SS416 etc. |
| Steel | Mild steel, Carbon steel, 4140, 4340, Q235, Q345B, 20#, 45#, etc. |
| Brass | HPb63, HPb62, HPb61, HPb59, H59, H62, H68, H80 etc. |
| Copper | C11000, C12000, C12000 C36000 etc. |
| Aluminum | AL6061, Al6063, AL6082, AL7075, AL5052, A380 etc. |
| Iron | A36, 45#, 1213, 12L14, 1215 etc. |
| Plastic | ABS, PC, PE, POM, Delrin, Nylon, PP, PEI, Peek etc. |
2). Quality control:
*We have specialized QC testers to check the quality of the products according to different customers’ requirements. Usually, it’s a random inspection, and we also offer 100% inspection at a reasonable price if required.
*We have IQC to check the dimensions and surface of the incoming material
*We have PQC to inspect full-course during the manufacturing processing
*We have FQC to inspect all the anodizing/plating and other finishes’ products from our supplier and proceed with the professional quality and appearance inspection before shipping.
3).Surface Finish: sandblasted/normal and hard anodized finish/polish/coating/polish/passivation/plating/brush/heat treatment/fine glass beads/grounding/tumbled finish , etc. More detailed information for different material parts is below,
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Aluminum parts |
Brushing Polishing Clear Anodized Color Anodized Sandblast Anodized Chemical Film |
| Stainless Steel parts | Polishing Passivated Sandblasting Plating |
| Steel Parts | Zinc plating Oxide Black Nickel plating Chrome plating Carburized Heat treatment Powder Coated |
| Plastic Parts | Chrome plating Polishing |
4). Payment terms: T/T payment. The Sample order is paid by full payment; Mass production with order amount exceeding can be paid a 50% deposit before production, and balance paid before shipping.
5). Production schedule: Usually, it takes 5~10 working days for sample production; 15~20 working days for mass production days, it depends on your design, simple parts can be produced quickly, the complicated design parts would take us more machining time.
6). Machining capability: 30 sets of the most technologically advanced machining CNC milling machines, 20 sets of CNC turning machines, 25 sets of Multi-Spindle Japan Precision Swiss CNC lathes, and 4 sets of 2D &3D CMM (image measuring instrument) quality control equipment 3 QC staff, enabling CNC Manufacturing to deliver precise parts within the tightest of tolerances, ensuring the highest quality results to meet different
customers’ requirements.
7). Tolerance: +/- 0.02mm (for Metal shaft), +/-0.03mm ( for plastic), for special tolerance requirements, please point them out in the email, we will Check if it’s feasible to make it after studying it.
8). Packing & Shipping way:
1. Packing Detail: Each product is packed with plastic preservative, EPE, foam plastic bag, Carton outside, wood case or iron case or as per the customer’s special requirement. Besides, the custom package takes a week to prepare in advance.
2. Delivery Detail: the fast International Shipping time takes 3 ~5 working days by DHL/UPS/FedEx, slow shipping time takes 7~ 8 working days by DHL/UPS/FedEx/TNT, etc.
3. Shipping options:
1) 0-100kg: express&air freight priority,
2) >100kg: sea freight priority,
3) As per customized specifications
About us
Full-service precision CNC machining services for prototypes and short and low to high production runs. Capabilities are CNC milled and turned metal parts and assemblies. Materials worked with include aluminum, brass, copper, stainless, steel, iron, other precious metals, and other plastic materials. Lead times are 2 to 3 weeks for prototypes and 4 to 6 weeks for production runs. Emergency and rush services are available. Industries served include aircraft and aerospace, consumer electronics, automotive, machinery fittings, audio equipment, EDC tools, computer, and Secondary processes such as anodizing, sandblasting, blackening, grinding, honing, heat treating, powder coating, passivation, polishing, plating, and brushing are also provided.
We put high attention and effort into all of the work that we do. Every part that comes off our machines is an extension of us. We take great pride in bringing machining CZPT to our customers. The amazing quality parts we machined here will be your best choice to find a supplier!
Customer’s comment
Want to know more about us? Email us now!
| After-sales Service: | Email Us Anytime If Any Problems |
|---|---|
| Warranty: | Email Us Anytime If Any Requirements |
| Condition: | New |
| Certification: | CE, RoHS, GS, ISO9001 |
| Standard: | DIN, Custom Metal Parts & Free Sample Offered |
| Customized: | Customized |
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| Samples: |
US$ 0/Piece
1 Piece(Min.Order) |
|---|
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| Customization: |
Available
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|---|
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| Advantages | »Free sample offered before production »Good machining quality and warm service »Reasonable Pricing and outstanding quality provided »Competitive shipping cost service with discount sometimes »MOQ 1PCS and small quantity order accepted, mass production supported »Professional engineering service when any modification required »Any turnkey assembly or customized package requirements, we’ll meet your demands! |
|||||
| Equipment |
»20 sets of CNC turning machines; »30 sets of the most technologically advanced machining CNC milling machines; »25 sets of Multi-Spindle Japan Precision Swiss CNC lathes |
|||||
| RFQ | Customer Inquiry →Engineering Communication →Cost Analysis →Sales Analysis →Quote to Customer » 1-3 Work Days Only » Submit RFQ with complete commercial terms |
|||||
| Sample Making | Sample Order → Engineering Review → Sample Plan to Customer → Sample Status Tracking → Submit Samples with Doc. » Sample L/T: 1 week » Continuous Sample Status Tracking » Complete Documents for sample approval |
|||||
| Order Management | CRM System → Open Order Confirm → Logistic Arrangement. » Production L/T: 2-4 wks » Weekly Open Order Confirm » Preferred 3PL Service to Customers |
|||||
| Quality Control | Certificates: RoHS, ISO9001:2008, SGS. IQC → IPQC → OQC/FQC → Quality Complain Feedback → Audit & Training. » Plant Audit and Qualified by world famous company » Strict Quality Management Procedure with Traceability |
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| Application | »Aerospace »Automotive »Lighting fittings »Motorbike »PhotoGear »EDC Tools » Marine »Office equipment »Home appliance »Medical equipment »Telecommunication »Electrical & Electronics »Fire detection system, etc. |
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| Stainless Steel | SS201, SS301, SS303, SS304, SS316, SS416 etc. |
| Steel | Mild steel, Carbon steel, 4140, 4340, Q235, Q345B, 20#, 45#, etc. |
| Brass | HPb63, HPb62, HPb61, HPb59, H59, H62, H68, H80 etc. |
| Copper | C11000, C12000, C12000 C36000 etc. |
| Aluminum | AL6061, Al6063, AL6082, AL7075, AL5052, A380 etc. |
| Iron | A36, 45#, 1213, 12L14, 1215 etc. |
| Plastic | ABS, PC, PE, POM, Delrin, Nylon, PP, PEI, Peek etc. |
###
|
Aluminum parts |
Brushing Polishing Clear Anodized Color Anodized Sandblast Anodized Chemical Film |
| Stainless Steel parts | Polishing Passivated Sandblasting Plating |
| Steel Parts | Zinc plating Oxide Black Nickel plating Chrome plating Carburized Heat treatment Powder Coated |
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Screws and Screw Shafts
A screw is a mechanical device that holds objects together. Screws are usually forged or machined. They are also used in screw jacks and press-fitted vises. Their self-locking properties make them a popular choice in many different industries. Here are some of the benefits of screws and how they work. Also read about their self-locking properties. The following information will help you choose the right screw for your application.
Machined screw shaft
A machined screw shaft can be made of various materials, depending on the application. Screw shafts can be made from stainless steel, brass, bronze, titanium, or iron. Most manufacturers use high-precision CNC machines or lathes to manufacture these products. These products come in many sizes and shapes, and they have varying applications. Different materials are used for different sizes and shapes. Here are some examples of what you can use these screws for:
Screws are widely used in many applications. One of the most common uses is in holding objects together. This type of fastener is used in screw jacks, vises, and screw presses. The thread pitch of a screw can vary. Generally, a smaller pitch results in greater mechanical advantage. Hence, a machined screw shaft should be sized appropriately. This ensures that your product will last for a long time.
A machined screw shaft should be compatible with various threading systems. In general, the ASME system is used for threaded parts. The threaded hole occupies most of the shaft. The thread of the bolt occupy either part of the shaft, or the entire one. There are also alternatives to bolts, including riveting, rolling pins, and pinned shafts. These alternatives are not widely used today, but they are useful for certain niche applications.
If you are using a ball screw, you can choose to anneal the screw shaft. To anneal the screw shaft, use a water-soaked rag as a heat barrier. You can choose from two different options, depending on your application. One option is to cover the screw shaft with a dust-proof enclosure. Alternatively, you can install a protective heat barrier over the screw shaft. You can also choose to cover the screw shaft with a dust-proof machine.
If you need a smaller size, you can choose a smaller screw. It may be smaller than a quarter of an inch, but it may still be compatible with another part. The smaller ones, however, will often have a corresponding mating part. These parts are typically denominated by their ANSI numerical size designation, which does not indicate threads-per-inch. There is an industry standard for screw sizes that is a little easier to understand.
Ball screw nut
When choosing a Ball screw nut for a screw shaft, it is important to consider the critical speed of the machine. This value excites the natural frequency of a screw and determines how fast it can be turned. In other words, it varies with the screw diameter and unsupported length. It also depends on the screw shaft’s diameter and end fixity. Depending on the application, the nut can be run at a maximum speed of about 80% of its theoretical critical speed.
The inner return of a ball nut is a cross-over deflector that forces the balls to climb over the crest of the screw. In one revolution of the screw, a ball will cross over the nut crest to return to the screw. Similarly, the outer circuit is a circular shape. Both flanges have one contact point on the ball shaft, and the nut is connected to the screw shaft by a screw.
The accuracy of ball screws depends on several factors, including the manufacturing precision of the ball grooves, the compactness of the assembly, and the set-up precision of the nut. Depending on the application, the lead accuracy of a ball screw nut may vary significantly. To improve lead accuracy, preloading, and lubrication are important. Ewellix ball screw assembly specialists can help you determine the best option for your application.
A ball screw nut should be preloaded prior to installation in order to achieve the expected service life. The smallest amount of preload required can reduce a ball screw’s calculated life by as much as 90 percent. Using a lubricant of a standard grade is recommended. Some lubricants contain additives. Using grease or oil in place of oil can prolong the life of the screw.
A ball screw nut is a type of threaded nut that is used in a number of different applications. It works similar to a ball bearing in that it contains hardened steel balls that move along a series of inclined races. When choosing a ball screw nut, engineers should consider the following factors: speed, life span, mounting, and lubrication. In addition, there are other considerations, such as the environment in which the screw is used.
Self-locking property of screw shaft
A self-locking screw is one that is capable of rotating without the use of a lock washer or bolt. This property is dependent on a number of factors, but one of them is the pitch angle of the thread. A screw with a small pitch angle is less likely to self-lock, while a large pitch angle is more likely to spontaneously rotate. The limiting angle of a self-locking thread can be calculated by calculating the torque Mkdw at which the screw is first released.
The pitch angle of the screw’s threads and its coefficient of friction determine the self-locking function of the screw. Other factors that affect its self-locking function include environmental conditions, high or low temperature, and vibration. Self-locking screws are often used in single-line applications and are limited by the size of their pitch. Therefore, the self-locking property of the screw shaft depends on the specific application.
The self-locking feature of a screw is an important factor. If a screw is not in a state of motion, it can be a dangerous or unusable machine. The self-locking property of a screw is critical in many applications, from corkscrews to threaded pipe joints. Screws are also used as power linkages, although their use is rarely necessary for high-power operations. In the archimedes’ screw, for example, the blades of the screw rotate around an axis. A screw conveyor uses a rotating helical chamber to move materials. A micrometer uses a precision-calibrated screw to measure length.
Self-locking screws are commonly used in lead screw technology. Their pitch and coefficient of friction are important factors in determining the self-locking property of screws. This property is advantageous in many applications because it eliminates the need for a costly brake. Its self-locking property means that the screw will be secure without requiring a special kind of force or torque. There are many other factors that contribute to the self-locking property of a screw, but this is the most common factor.
Screws with right-hand threads have threads that angle up to the right. The opposite is true for left-hand screws. While turning a screw counter-clockwise will loosen it, a right-handed person will use a right-handed thumb-up to turn it. Similarly, a left-handed person will use their thumb to turn a screw counter-clockwise. And vice versa.
Materials used to manufacture screw shaft
Many materials are commonly used to manufacture screw shafts. The most common are steel, stainless steel, brass, bronze, and titanium. These materials have advantages and disadvantages that make them good candidates for screw production. Some screw types are also made of copper to fight corrosion and ensure durability over time. Other materials include nylon, Teflon, and aluminum. Brass screws are lightweight and have aesthetic appeal. The choice of material for a screw shaft depends on the use it will be made for.
Shafts are typically produced using three steps. Screws are manufactured from large coils, wire, or round bar stock. After these are produced, the blanks are cut to the appropriate length and cold headed. This cold working process pressudes features into the screw head. More complicated screw shapes may require two heading processes to achieve the desired shape. The process is very precise and accurate, so it is an ideal choice for screw manufacturing.
The type of material used to manufacture a screw shaft is crucial for the function it will serve. The type of material chosen will depend on where the screw is being used. If the screw is for an indoor project, you can opt for a cheaper, low-tech screw. But if the screw is for an outdoor project, you’ll need to use a specific type of screw. This is because outdoor screws will be exposed to humidity and temperature changes. Some screws may even be coated with a protective coating to protect them from the elements.
Screws can also be self-threading and self-tapping. The self-threading or self-tapping screw creates a complementary helix within the material. Other screws are made with a thread which cuts into the material it fastens. Other types of screws create a helical groove on softer material to provide compression. The most common uses of a screw include holding two components together.
There are many types of bolts available. Some are more expensive than others, but they are generally more resistant to corrosion. They can also be made from stainless steel or aluminum. But they require high-strength materials. If you’re wondering what screws are, consider this article. There are tons of options available for screw shaft manufacturing. You’ll be surprised how versatile they can be! The choice is yours, and you can be confident that you’ll find the screw shaft that will best fit your application.
editor by czh 2022-11-28