Heavy Duty Steel Extension Coil Spring Tension Spring for Industrial Use

• Customization: Available
• After-sales Service: Accept
• Warranty: 2 Years
• Model NO.: LS-S
• Customized: Customized
• Certification: ISO14001, ISO/TS16949, ISO9001
• Type: Spiral Compression Spring
• Spring Material: Steel,Carbon Steel, Stainless Steel, Alloy
• Package: Polybag-Paper Carton-Wooden Case
• Custom HS Code: 73202010
• Wire Diameter: 2-80mm
• MOQ: Any Small Trial Order Is Welcome
• Products Name: Tension Spring
• End Type: Closed and Ground Ends/Flat Ends / Not Ground
• Advantage: Strict QC Checking Before Delivery
• Order Qty: OEM/ODM Services Are Available
• Delivery Time: 5-7 Days
• Style: Tension
• Surface Treatment: Nickel / Zinc Coated / Gold / Silver / Tin / Chrom
• Application: Elevator / Automobile / Machine / Toyota Landcruis
• Color: Red, Black,White,Yellow etc..
• Height: 10mm-500mm
• Transport Package: Standard Sea Worthy
• Specification: standard
• Trademark: chenji
• Origin: China
• Package Size: 1050.00cm * 1050.00cm * 1100.00cm
• Package Gross Weight: 2100.000kg

Product Description

Product Description

Product Name	Spiral  Coil  Extension Springs Trampoline Springs  With hook
Material	Carton steel  : 65MN, 70#  ,72A , 82B / Alloy Steel  :60Si2Mn , 50CrVA ,(DIN1.8159) / Stainless Steel : 301 , 302, 304, 17-7
Wire diameter	0.2-40 mm
Finishes	Black oxide ,  Zinc plating, Nickel  plating Chrome plating.Silver  plating Gold plating,  Powder coating
Application	*Electronic products/Children toys, *Locks/Watches/Glasses *Baby carriage/Bicycle/Kitchen appliances *Cameras/Printers/Office equipment *Precision equipment and various kinds of vehicles
Sample	Free

Tension springs (also called resistance springs) are a very common type of elastic element. Their characteristic is that when tension is applied to both ends, the spring stretches and generates a restoring force, attempting to return to its original length. This property makes them widely used in many fields.

The following are the main application areas and specific examples of tension springs:

I. Industry and Manufacturing
Automation Equipment and Robotics:

Robotic Arm Grippers: Used to provide clamping force for grasping and placing workpieces.

Conveyor Belt Tensioning Systems: Maintain proper tension on the conveyor belt to prevent slippage and deviation.

Counters and Metering Devices: Counting mechanisms are driven by the spring's rebound.

Home Appliances:

Washing Machines: Used to balance the drum and reduce vibration (in some models).

Garage Doors: As part of a counterweight system, help balance the weight of the door, making it easier to open and close.

Fitness Equipment: Such as resistance bands, rowing machines, etc., providing resistance.

II. Automotive and Transportation

Braking Systems:

In drum brakes, used to pull the brake shoes back to their original position when the brake pedal is released.

Accelerator and Clutch:

Used for returning the accelerator and clutch pedals to their original positions, ensuring safety.

Seat Belts:

Responsible for neatly coiling the seat belts when not in use.

Engine Compartment:

Used for tensioning belts, ensuring the proper functioning of the generator, water pump, air conditioning compressor, etc.

III. Everyday Items and Furniture

Staplers:

Staplers: Return the staple slots to their original position after being pressed.

Folders: Springs in binders are used to hold papers.

Toys:

Toy Guns: Used to fire soft bullets.

Wind-Up Toys: Serves as a power storage and release element.

Furniture:

Sofas and Mattresses: Used in older sofas and mattresses to provide support and elasticity.

Doors/Window: Used in screen doors, cabinet doors, etc., to enable automatic closing.

Personal Items:

Scales: In spring scales, weight is measured by the extension of the spring.

Clips: Such as clothespins, folder clips, etc., providing clamping force.

IV. Medical and Fitness Equipment

Medical Equipment:

Prostheses and Orthotics: Used to provide assistive force or for rehabilitation training.

Surgical Instruments: Used in some devices for repositioning or providing specific movements.

Fitness Equipment:

Resistance Testers, Chest Expanders: Directly serve as a source of resistance.

Fitness Equipment: Provides adjustable resistance in various strength training machines.

V. Other Special Applications

Aerospace:

Used in aircraft control systems to provide feedback force and repositioning.

Safety Protection:

Used as a trigger or repositioning element in emergency braking devices or safety valves.

In summary, the core functions of a tension spring can be summarized as follows:

Providing repositioning force: Enabling components to return to their initial position after being subjected to force (e.g., brakes, throttles).

Storing energy: Converting tension into potential energy and releasing it when needed (e.g., toys).

Providing tension: Keeping the system taut (e.g., conveyor belts, belts).

Providing resistance/tension: Serving as a source of force (e.g., fitness equipment, clamps).

Force measurement: Measuring the magnitude of force through deformation (e.g., a spring scale).

These fundamental and crucial functions make tension springs indispensable components in everything from precision instruments to heavy machinery, from everyday life to high-tech fields.

 

Detailed Photos

 

 

 

 

2. Technical requirement  
(1) Wire diameter
(2) Inside diameter or Outer diameter
(3) Free length
(4) Total number of coils
(5) Active number of coils
(6) Surface treatment
(7) End type
(8)Rotation

3 .FAQ
1.Q: What's your advantage?
A: We are factory, so we will supply competitive price with high quality, and delivery time will be guaranted.
2. Q: What is the expected lifespan or durability of the product?
A: Our product has an expected lifespan of 15000-18000 cycles.
3. Q: What is your company's experience and reputation in the industry?
A: Our company has been in business for 20 years and has a reputation for delivering high-quality products and excellent customer service. We have worked with numerous clients in various industries.
4. Q: What is your company's policy on returns and refunds?
A: We have a flexible returns and refunds policy for a full refund or exchange. We also offer warranties on our products to ensure customer satisfaction.

 

 

 

4. Advantage:

1. Big production capacity, fast delivery.
2. Strict QC checking before delivery.
3. OEM/ODM services are available, have first-class technical team in China.
4. Prompt quotation for your inquiry.
5. 40 years original production experience.
6. Professional spring manufacturer offers competitive price.
7. Pass ISO9001.2008,SO14000,ISO18000,ISO/TS16949-2009 and SGS Certification.

Company honor:1.The Executive member of China Spring Industry association, 2.Drafting unit of National spring standards