Place of Origin: | China |
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Brand Name: | HEZHI |
Certification: | Rohs&Reach |
Model Number: | N/A |
Minimum Order Quantity: | 1000pcs |
Price: | $0.1 - $0.5USD/ Piece/Pieces |
Packaging Details: | PE Bag with Carton Box |
Delivery Time: | 7-15 work days |
Payment Terms: | T/T, L/C |
Supply Ability: | 10,000,000 Piece/Pieces per Month According to the order |
Product Name: | OEM ODM Factory Heavy Duty Customized Precision Helical Torsion Spring | Application: | Hardware/ Automobile/electrommunication/ Clamp/ Etc |
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Size: | As Customer's Sizes | Usage: | Automobile;Auto;Car |
Wire Diameter: | 0.05mm-20mm As Request | Material: | Stainless Steel, Carbon Steel ,Piano Steel Or As Required |
Color: | White, Black, Silver, Gold Or As Required | Service Accept: | OEM/ODM |
Quality Control: | 100% Inspection | ||
High Light: | double helical torsion spring,ODM double helical torsion spring,ODM heavy duty torsion springs |
OEM ODM Factory Heavy Duty Customized Precision Helical Torsion Spring
Torsion springs belong to the category of spiral springs. Torsional springs can store and release angular energy or statically hold a device by rotating a moment arm about the central axis of the spring body. The end of the torsion spring is fixed to the other components, and as the other components rotate around the center of the spring, the spring pulls them back to their initial position, generating torque or rotational force.
Such springs are usually close-fitting, but the springs are spaced to reduce friction. They exert resistance to rotation or rotational forces. According to the application requirements, the design of torsion spring rotation (clockwise or counterclockwise), so as to determine the spring rotation.
Torsion spring production process:
spring wire → spring winding → low temperature stress relief annealing → high temperature degreasing → washing → dilute hydrochloric acid washing → washing → electric galvanizing (80 min) → washing → blanking → dehydrogenation treatment (200 ℃, 4 h) → feeding → washing → color passivation → washing → drying → blanking → inspection
Material | Stainless Steel (SUS304,301.316,310 ect) | |
Paino/Music Wire | ||
Carbon Steel | ||
Iron or as your requirments | ||
Finished | Electroplating | Zinc ,Nickel ,copper ,black and so on |
Heating | In different tempurture | |
Cleanning | Passivation,Clean,Rust-Proof | |
Process | CNC Machine,Digital control multi-functional computer spring coiling machine, mechanical automatic spring coiling machine, spring grinding machine, heat treatment equipment | |
Application | used in computer, electronics, home appliances, cameras, instruments, doors, motorcycles, harvesters, automobiles, and other industries | |
Wire diameter Range | 0.05mm-20mm | |
Design | According to customer's drawing or sample | |
Packaging | PE Bag+carton Box, inner plastic bags and outer carton | |
Design | According to customer's drawing or samples |
Material | Type | Model number | 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 | Craft and Toys |
301, 302, 303, 304, 305, 310, 316, 321 | High temperature resistance | 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 | 55CrSi, 60SizMNA, 60SizCRVA |
Good elasticity high hardness |
Electronic part, home appliance, Locks, toys or can be used in all kinds of products. |
Piano Steel (SWP) | SWP-A, SWP-B | High tensile resistance, and long worklife | Application for all kinds of small products | |
Copper Wire | Phosph or copper wire( C519R), Nickel plated copper, Bronze | Good conductivity of electrical | Electronics, electrical applicance, like antenna | |
Iron | Galvanize iron wire | Customized | Soft material |
Craft spring Decoration wire |
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 spring factory specializing in R&D design, amnufacturer and sales, introduced equipment technology and hired senior engineers with more ten years of experience to highly cooperate with various customized ODM and OEM products.
Our company use CNC computer spring machine to produce a variety of compression spring, extenion spring, torsion spring, battery spring, touch button spring, wire forming spring, constant force spring, die spring, stamping parts and a variety of high precision hardware products, widely use in hardware, lamps, electrical, appliance, bicycles, motorcycles, cars, mobile phones, digital products and ao on. 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.
Slogan:“The testimony is pragmatic and the attitude of the people. Quality service is the pursuit of the people!
* 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.
We are the manufacturer of the hardware. We can provide OEM service and also provide samples for testing. Last but
not least, we produce not only rivet nut column, but aslo al kinds of springs.
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.
3.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.
4.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.
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. Payment term
*T/T : 30% pre T/T, 70% before delivery.
*Trade Assurance
7. Packing
*A: Poly bag, Plstic tray ,small box, carton.
*B: According to customers' requirements.
8. Delivery
*Sample: 7-10 days after deposit received.
*Batch goods: 12-15 days after samples approved.
9. 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.
10.What shipping ways our use?
We will use UPS, DHL or TNT to ship the products. If your goods are very heavy or bulky, we will choose sea transportation.