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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Nickel Plating Mini Pocket Multi-function Piano Steel Torsion Spring Coil Industrial
It is one of the more complicated design principles among all the categories of spring. There are many types of changes, so the theory involved in the design is the most complicated
Main Parameters
D (spring wire diameter) : This parameter describes the diameter of
the spring wire.
Dd (maximum mandrel diameter): This parameter describes the maximum
diameter of a spring shaft in industrial applications, tolerance
±2%.
Di (inside diameter): The inside diameter of the spring is equal to
the outside diameter minus twice the wire diameter. In the working
process of the torsion spring, the inner diameter can be reduced to
the diameter of the mandrel,
Inner diameter tolerance ±2%.
De (outside diameter) : equal to the inside diameter plus twice the
wire diameter. Torsion spring in the process of working, the outer
diameter will become smaller, tolerance (±2%±0.1)mm.
L0 (natural length): Note: the natural length will decrease during
operation, tolerance ±2%.
Ls (support length): This is the length from the center axis of the
spring coil body to the spring support, tolerance ±2%.
An (maximum torsion Angle): maximum torsion Angle of torsion
spring, tolerance ±15 degrees.
Fn (maximum load): maximum force allowed on torsional spring
support, tolerance ±15%.
Mn (maximum torque): Maximum allowable torque (Newton * mm),
tolerance ±15%.
R (spring stiffness): This parameter determines the resistance of
the spring when operating. Unit Newton * mm/degree, tolerance ±15%.
A1 & F1 & M1 :(torsion Angle, load and torque) : The
following formula can be used to calculate the torsion Angle A1 =
M1/R. Knowing the load, the formula M = F*Ls can be used to
calculate the torque.
Support position: the torsion spring support has four positions
:0°, 90°,180° and 270°
Spiral direction: the right spring rotates counterclockwise, the
left spring rotates clockwise. All of our springs can be produced
in both turns.
| Material | Stainless Steel (SUS304,301.316,310,201,631, ect) | |
| Paino/Music Steel | ||
| Carbon Steel or as your requirments | ||
| Iron etc | ||
| Finished | Electroplating | Zinc ,Nickel ,copper ,black and so on |
| Heating | In different tempurture | |
| Cleanning | Passivation,Clean,Rust-Proof | |
| Process | CNC Machine | |
| Application | It is widely 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 dia Range | 0.05-20mm | |
| Design. | According to your drawing or sample | |
| Packaging | PE Bag with Carton Box | |
Standard | JIS, DIN, ANSI, EN, etc. | |
| Tolerance | 0.05mm-0.1mm or as your requirements | |
| 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, 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 | 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.
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. Service
*Delivery on time.
*Shipped by a convenient and cost-effective way.
*Good after-selling, 24 hours service for you.
8. Packing
*A: Poly bag, Plstic tray ,small box, carton.
*B: According to customers' requirements.
9. Delivery
*Sample: 7-10 days after deposit received.
*Batch goods: 12-15 days after samples approved.
10. 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.
