Active Member
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[China]
Address: No.10 DongKeng KeJi Road, DongKeng Town, Dongguan City, Guangdong Province
Contact name:Wendy
Dongguan Hezhi Hardware Co., Ltd. |
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OEM Carbon Brush Steel Spiral Tension Bicycle Brake Return Spring Automobile;Auto;Car
Tension spring is a spiral spring bearing axial tension, the hook in the form of side hook spring, long hook spring, English hook spring, German hook spring, semicircle hook spring, duck beak hook spring and so on," hook "is used to ensure the tension source of the stretching spring, generally made of circular section material spring steel, when not bearing load, The coil between the tension spring is generally tight without gap, and the use of stretch resilience (tension) work, to control the movement of parts, energy storage, measurement force, etc., most of the stretch spring is usually under a certain degree of tension, even in the absence of any load. This initial tension determines how tightly the stretch spring is wound without any load.
Extension Spring is a typical Spring, namely the representative of Spring, from straight cylinder to various variants, and even hook shapes can be shaped according to the design. The Extension Spring is the reverse application of the compression Spring. The application scope is roughly less specific than the product category, but the operation control is one level higher than the compression Spring.
The rings are tightly wrapped so that they can be stretched by
force, and each end is wound in a Loop. The following is the
necessary information for a stretch spring:
Parameters:
(1) free length :(a) total length, (b) total length of the loop,
(c) length inside the hook loop.
(2) control diameters :(a) outer diameter, (b) inner diameter, (c)
inner diameter of casing.
(3) Wire size "wire diameter".
(4) Materials (type, grade).
(5) number of turns :(a) total number of turns and (b) right or
left.
(6) Terminal form.
(7) load in the hook.
(8) Load rate, deflection, pounds per inch.
(9) Maximum stretching length.
| Material | Stainless Steel (SUS304,301.316,310,201,631, ect) | |
| Paino/Music Steel | ||
| Carbon Steel | ||
| Iron or Customer's Demand | ||
| Finished | Electroplating | Zinc ,Nickel ,copper ,black etc. |
| Heating | In different tempurture | |
| Cleanning | Passivation,Clean,Rust-Proof | |
| Process | CNC Machine | |
| Application | used in computer, electronics, home appliances, cameras, instruments, doors, motorcycles, harvesters, automobiles, and other industries to control the movement of machine parts, ease impact or vibration, storage energy, measure the size of force and so on! | |
| Wire diameter Range | 0.05mm-20.0mm | |
| Design | According to customer's drawing or sample | |
| Packaging | PE Bag+carton Box, inner plastic bags and outer carton | |
| 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 | General using 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 or normal material | 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 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.
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?
*By Air
*By Train
*By Sea
