Extension Coil Spring

Extension Coil Spring

These springs are known as the footrest release spring and are the main springs that operate the recliner. They are perfect fit direct replacement for recliner. Each hook end has a plastic coating for noise reduction.

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Product Details

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extension coil spring


1.Product introduction of the extension coil spring


These springs are known as the footrest release spring and are the main springs that operate the recliner. They are perfect fit direct replacement for recliner. Each hook end has a plastic coating for noise reduction.


● Constructed of high quality

● Protected finish for extra corrosion protection

● Resists extension fatigue

● Manufactured to tight tolerances and stringent quality control standards

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2.Product Specification of the extension coil spring


Item

extension coil spring

Wire Diameter

wire sizes ranging from .008” up to .312”

Type

Helical

OEM

Offered

Material

Steel

Finish

Galvanized

Wire Type

round

Tolerance 

0.01-0.1mm

Application

Hardware

Place of Origin

China

Sample time

2-4days

Meets / Exceeds

SGS , ROHS , ISO9001

Quality guaranteed

100% responsible for quality problems

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3.Product Feature and Application of the extension coil spring


Whatever your requirements, and whatever the final application may be. Our customized processes are designed to meet the needs of any industry, with precision springs, wire forms and metal stampings that meet even the strictest tolerance requirements.


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4.Production Details of the extension coil spring


Being the manufacturer we can make any sizes to suit custom jobs. Our customized processes are designed to meet the needs of any industry, with precision springs, wire forms and metal stampings that meet even the strictest tolerance requirements.


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5.Product Qualification of the extension coil spring


● Quality and Environmental


Fooaima Spring meet the strictest quality control requirements,we has been certified to comply with the quality and environmental requirements of SGS,ROHS & ISO 9001.


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● Strict Quality Testing


We consider quality as most important factor, and employ QC with 5 years of experience. Every goods have to pass 3 times check, and our inspection standard is much more rigid, so we can make sure good quality.


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● Advanced processes and machinery


Our advanced processes and machinery are designed to help us lower labor costs, reduce errors, and eliminate waste.


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6.Deliver, Shipping And Serving of the extension coil spring


● Securely packed to assure safe


1.Generally, we use standard export carton box,outer with wooden pallet.

We reinforce the cartons with straps, and we seldom meet complaint about the shipment damage by sea in the past 5 years.


2.In order to make our parts to get into your products as easy as possible, Fooaima also work with customers to develop custom packing solutions.


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● On-time delivery


We're dedicated to providing the quickest turnaround times and work very hard to ensure that all of your deadlines are met.  


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7.Have any questions?


Q: Is Fooaima Spring only custom manufactured, or do you have stock products to sell?

Fooaima are custom manufactured spring and wire forms to meet individual order requirements. We offer great prices, precise quality and total customer satisfaction.


Q: How much and how long will it take to make samples?

- Sample is free of charge while the freight will be for your account.  
- We can turn round very quick,typically,it takes 2-4days to finish. It depends,contact our custom spring department can advise you regarding this procedure.


Q: What is initial tension (extension spring)?

Extensions springs require a certain amount of force to be applied before any deflection is realized. Deflection is the point where the coils start to separate and the spring extends. Once the initial tension is reached and the spring will start to expand at the predetermined rate of the spring.
For example, if a spring has an initial tension of 20 lbs. and the spring rate is 15 lbs. /in, it will take 35 lbs of force to pull the spring apart one inch, 20 lbs. of initial tension and 15 lbs of spring rate. To expand it to two inches it will take 50 lbs of force, 20 lbs of initial tension and 15 lbs for each inch. And so on and so on.


Q: What method of shipping does Fooaima use?

-By sea,
-By air
-By couriers, TNT, FEDEX, UPS, DHL, EMS Express, etc.



Not sure if constant force springs can provide the right action for your product? Contact our engineering team for more information on constant force springs and our other spring products and assemblies.

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