Dongguan Hezhi Hardware Co., Ltd.
| Payment Terms | T/T, L/C |
| Supply Ability | 10,000,000 Piece/Pieces per Month According to the order |
| Delivery Time | 7-15 work days |
| Packaging Details | PE Bag with Carton Box |
| Product name | Custom heavy duty large clutch compression coil spring with closed end |
| Application | Hardware; Furniture; Industrial; Auto; Car; Toy and more |
| Load Type | Compression |
| Size | 0.05mm-20mm or as your custom |
| Material | Stainless Steel, carbon steel, copper, SUS304, Alloy，spring steel |
| Finish | Zinc/Nickel /Silver plated |
| Package | carton, PE Bag+carton Box, wooden case |
| Oem/odm | offered |
| Brand Name | HEZHI |
| Model Number | N/A |
| Certification | Rohs&Reach |
| Place of Origin | Guangdong, China |
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Product Specification
| Payment Terms | T/T, L/C | Supply Ability | 10,000,000 Piece/Pieces per Month According to the order |
| Delivery Time | 7-15 work days | Packaging Details | PE Bag with Carton Box |
| Product name | Custom heavy duty large clutch compression coil spring with closed end | Application | Hardware; Furniture; Industrial; Auto; Car; Toy and more |
| Load Type | Compression | Size | 0.05mm-20mm or as your custom |
| Material | Stainless Steel, carbon steel, copper, SUS304, Alloy，spring steel | Finish | Zinc/Nickel /Silver plated |
| Package | carton, PE Bag+carton Box, wooden case | Oem/odm | offered |
| Brand Name | HEZHI | Model Number | N/A |
| Certification | Rohs&Reach | Place of Origin | Guangdong, China |
| High Light | Clutch Steel Compression Spring ，Helical Steel Compression Spring ，4mm closed coil helical spring | ||
Custom heavy duty large clutch compression coil spring with closed end
Compression spring is under axial pressure of the spiral spring, can withstand the pressure, both ends can be open or closed or round flat or smooth, materials used in the cross section is round more, it is also useful for rectangular and multi-strand steel rolled a travelling.
springs have a pitch and defect, such as the shape of the compression spring are: cylindrical, conical, convex and concave, and a small amount of noncircular and the variation of various end, All products need to be shaped in accordance with the design, etc.
Compression spring is a kind of metal accessories formed by the line spiral geometry, so the hardening and strengthening of his operation is more difficult than the plane hardware accessories (such as stamping parts), in addition to strictly control the hardening effect of the cross section of the pressure spring, so as to fully decompression spring after the use of fatigue fracture resistance.
F=kx, where F is the spring force, k is the stiffness coefficient, and x is the elongated length of the spring
For example, to test a 5N spring:
With 5N force pull stiffness coefficient of 100N/m of the spring, the spring is elongated by 5cm
F=kx,k is stiffness coefficient (in newtons per meter), x is spring elongation (in meters), this law is called Hooke's law
Characteristics of compression spring
Compression springs are generally coils of wire equal pitch and have a fixed wire diameter. Compression springs use multiple open coils to provide resistance to external pressure (such as gravity pushing down a wheel or the body pressing down on a mattress). Compression springs are generally coils of wire equal pitch and have a fixed wire diameter. In addition, there are conical compression springs, or a combination of conical and linear springs. Depending on the application, compression springs can be used to resist pressure and/or store energy. Round wires are the most commonly used compression springs, but there are also various springs made of square, rectangular, and special-shaped wires.
| Material | Stainless Steel (SUS304,301.316,201,631, ect) | |
| Paino/Music Steel (SWPB) | ||
| Carbon Steel, (72A,65Mn,82B, ect) | ||
| Iron or as your requirements | ||
| Finished | Electroplating | Zinc ,Nickel ,copper ,black and so on |
| Heating | In different tempurture | |
| Cleanning | Passivation,Clean,Rust-Proof | |
| Process | CNC Spring Machine | |
| Application | widely use in hardware, lamps, electrical, appliance, bicycles, motorcycles, cars, mobile phones, digital products and so on | |
| Wire diameter Range | 0.05-20 mm or as cusromer's required | |
| Tolerance | 0.05-0.15mm or as customer's requirements | |
| Material | Type | Model No. | Characteristic | Application |
| Stainless Steel (SUS) | With or without magnetism shine or nitrided surface, dark surface | 201, 202 etc. | Less nickel plated, could not proceed salt spray test | using craft and toys |
| 301, 302, 304,316,321 | High temperature resistance, can used in anti-acid, and-rust | Electronic part, home appliance, Locks, toys or can be used in all kinds of products. | ||
| 410, 420, 430 etc. | High strength | OEM aments and tableware products | ||
| 630, 631 etc. | High heat stability | Electrical application or product use under high temperature | ||
| Carbon Steel (SWC) | Low carbon steel, high carbon steel, nickel plated steel, Galvanized wire, manganese steel |
60SizCRVA | Good elasticity high hardness | Electronics, motors, computers, information, motor vehicles, bicycles, hardware tools, gifts, toys and other |
| Piano Steel (SWP) | SWP-A, SWP-B | High tensile resistance and long worklife | all kinds of products | |
| Copper Wire | Phosph or copper wire( C519R), Nickel plated copper | Good conductivity of electrical | Electronics, electrical applicance | |
| Iron | Galvanize iron wire | Customized | Soft material | Craft spring |
Dongguan Hezhi Hardware Co., Ltd. is located in Dongkeng Town, Dongguan City, Guangdong Province, China. We are a worldwide import and export trading company.We belong to a group of companies established in the early 20th century
Our company is a hardware factory specializing in R&D design, manufacture and sales of precision components.
The company introduces advanced equipment and production technology from Taiwan and abroad, adopts CNC high-precision computer machine, compression spring machine and other mechanical equipment, and employs senior engineers with more than ten years of work experience to debug mechanical equipment and customize production.
With the business philosophy of honesty, pragmatism and excellence, Hezhi Company is dedicated to serving customers at home and abroad.And expreely, our price is very competitive because we are manufactory. We are the source.
You can welcome to visit our website dghezhi.en.alibaba.com, which includes our company profiles, history and something latest designs.
* Inquiry and consulting support.
* Sample testing support.
* View our Factory.
* Training how to instal the machine, training how to use the machine.
* Engineers available to service machinery overseas.
1.Small order quantity is workable
From the initial sample design of the spring to the mass production of the springs, we can quickly reach your manufacturing goals and immediately provide the best products because we have an excellent production management system and expertly trained technical personnel.
2.Committed to high quality production
To keep HeZhi Springs at the forefront of the industry, we have implemented a stringent internal quality control system and regularly import the latest manufacturing equipment and instruments. Through our precise manufacturing technology and expert mold making process, we provide our customers with the best products and service.
3.Efficiency in manufacturing
Our company's machinery and equipment are controlled by CNC computers. In order to respond to international needs and standards, we continuously update and upgrade our equipment every year. Our machines effectively increase production capacity and save on manufacturing costs. The manufacturing department is the most important core of the whole company and by treating it with utmost importance, we reap great benefits in manufacturing efficiency.
4.What is the advantage of your parts for industry products?
We specialized in this field for several years of experience to highly cooperate with various customized OEM and ODM products,
with good quality and competitve price. Our company has a strong equipment resources, technology advantages. High-quality
employees quality of service, will be able to win your satisfaction.
5.Excellent customization services
HeZhi's R&D team designs and completes customized products according to the needs of customers. From the selection of materials to the function of the products, we can design and develop products to suite different customers' requirements. We are constantly involving ourselves in all aspects of the industry because only by having a complete view and analysis of the industry, can there be innovative breakthroughs
6. Do you provide samples? Is it free or extra?
We can provide free samples when we have them in stock, but you have to pay the freight.
7. Payment term
*T/T : 30% pre T/T, 70% before delivery.
*Trade Assurance
8. Delivery
*Sample: 7-10 days after deposit received.
*Batch goods: 12-15 days after samples approved.
9. Shipping
*By express: UPS, FedEx, DHL, TNT and so on
*By train
*By sea
10. Service
*Delivery on time.
*Shipped by a convenient and cost-effective way.
*Good after-selling, 24 hours service for you.
Company Details
Business Type:
Manufacturer
Year Established:
2011
Total Annual:
100000-500000
Employee Number:
50~100
Ecer Certification：
Active Member
Dongguan Hezhi Hardware Co., Ltd. is located in Dongkeng Town, Dongguan City, Guangdong Province, China. It is a hardware factory specializing in R&D design, manufacture and sales of precision components. The company introduces advanced equipment and production technology from Taiwan and abroad,... Dongguan Hezhi Hardware Co., Ltd. is located in Dongkeng Town, Dongguan City, Guangdong Province, China. It is a hardware factory specializing in R&D design, manufacture and sales of precision components. The company introduces advanced equipment and production technology from Taiwan and abroad,...
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