Door Closers Galvanized Door Closers Butterfly Torsion Spring

Welcome to our factory! We specialize in manufacturing high-quality galvanized door closers, including butterfly torsion spring door closers.

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  • Door Closers Galvanized Door Closers Butterfly Torsion Spring
  • Door Closers Galvanized Door Closers Butterfly Torsion Spring
  • Door Closers Galvanized Door Closers Butterfly Torsion Spring
  • Door Closers Galvanized Door Closers Butterfly Torsion Spring
  • Door Closers Galvanized Door Closers Butterfly Torsion Spring
  • Door Closers Galvanized Door Closers Butterfly Torsion Spring

PRODUCTS DETAILS

Basic Info.

Use
Auto, Furniture, Sports Equipment, Aerospace
Application
for Aerospace, Automotive, Medical, off-Highway, O
Tech
Anti-Corrosion
Machinery
Automatic Spring Machine
Surface Treatment
Nickel Plating, Chrome Plating, Zinc Plating ,Blac
Finish
Oil DIP,Passivation,Blacking, Zinc/Nickel/Chrome/S
Transport Package
Plastic Box
Specification
4-128mm
Trademark
HND
Origin
Xiamen
HS Code
7320909000
Production Capacity
5000000/Year

Product Description

Product Description
Torsion springs, whose ends are rotated in angular deflection, offer resistance to externally applied torque. The wire itself is subjected to bending stresses rather than torsional stresses. Springs of this type are usually close wound, reduce in coil diameter, and increase in body length as they are deflected. Special types of torsion springs include double torsion springs, heavy duty torsion springs, and springs having a space between the coils to minimize friction. Double torsion springs consist of one right-hand and one left-hand coil section and working in parallel

Durable using industrial muti-layer flexible wave spring for machine 

Material 
Stainless Steel (SUS304,301.316 ect)
Paino/Music Wire 
Carbon Steel or as required 

Finished 
Electroplating Zinc ,Nickel ,copper ,black and so on
Heating In different tempurture
Clean Passivation,Clean,Rust-Proof

Appliance
All kinds of cars ,machinery, home appliance, electronic products, computers, power switches, sport equipment and more
Wire dia Range 0.1-20mm

Door Closers Galvanized Door Closers Butterfly Torsion SpringDoor Closers Galvanized Door Closers Butterfly Torsion Spring

Reference drawing 
Door Closers Galvanized Door Closers Butterfly Torsion Spring
Products Details 
Door Closers Galvanized Door Closers Butterfly Torsion SpringDoor Closers Galvanized Door Closers Butterfly Torsion Spring

Related Products
Door Closers Galvanized Door Closers Butterfly Torsion Spring Company Profile
   Xiamen HuaNengDa Spring Co., Ltd. is located in Tong 'an District, Xiamen City, Fujian Province, China. It is a hardware factory specializing in R&D design, manufacture and sales of precision components. The company introduces domestic and foreign advanced equipment and production technology, adopts CNC high-precision computer machine, compression spring machine, CNC five-axis linkage machining center, CNC turning and milling compound, 300 tons of punch 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, HuaNengDa Spring Company is dedicated to serving customers at home and abroad. We hope that the products of HuaNengDa will help your business to be more brilliant, let us build a bright future in the high-tech era!
   The testimony is pragmatic and the attitude of the people. Quality service is the pursuit of the people!

Door Closers Galvanized Door Closers Butterfly Torsion Spring Huanengda Production Line
Door Closers Galvanized Door Closers Butterfly Torsion Spring Door Closers Galvanized Door Closers Butterfly Torsion Spring
Test Equipment
Door Closers Galvanized Door Closers Butterfly Torsion Spring Huanengda Warehouse Door Closers Galvanized Door Closers Butterfly Torsion Spring

Packing&Delivery
 Door Closers Galvanized Door Closers Butterfly Torsion Spring

Door Closers Galvanized Door Closers Butterfly Torsion Spring FAQ
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 HuaNengDa 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.Excellent customization services
HuaNengDa'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.
Payment term
*T/T : 30% pre T/T, 70% before delivery.
*Trade Assurance
Service
*Delivery on time.
*Shipped by a convenient and cost-effective way.
*Good after-selling, 24 hours service for you.
Packing
*A: Poly bag, Plstic tray ,small box, carton.
*B: According to customers' requirements.
Delivery
*Sample: 7-10 days after deposit received.
*Batch goods: 12-15 days after samples approved.
 

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