Industrial Roll up Door Extension Spring Tension Spring for Roller Shutter Door

• Customization: Available
• Function: Drive, Restoration
• Material: High Carbon Steel
• Model NO.: QYS225
• Usage: Industrial, Furniture, Home Appliance, Garage Door/Industrial Door/Roller Shutter Door
• Load Type: Torsion
• Production Process: Cold Roll
• Shape: Coil
• Wire Diameter: 2.0mm-12.0mm
• Length: as Your Require
• Direction: Left Hand & Right Hand
• Transport Package: Standard Packing, Pallet
• Specification: 72B, 82B, 60Si2MnA
• Trademark: QY
• Origin: Hefei Anhui China
• HS Code: 7320909000
• Production Capacity: 5000pairs/Week

Product Description

• We are professional manufacturer of Garage door spring and Industiral door hardwares,including spring cone,cable drum,hinges,brackets,industrial bearing,tracks etc.Our mission is to provide the highest quality garage door spring ,outstanding customer service ,and competitive prices.
• Enamel coated steel springs are tested to be durable and long-lasting. Rated for 12, 000 cycles (a cycle is 1 open and 1 close)
• Garage door springs are color-coded for easy identification.

Name	Industrial Roll Up Door Extension Spring Tension  Spring For roller shutter door
Diameter	1 3/4" ,2" , 25/8" , 3 3/4" , 5 1 /4" , 6"
Material	72B ,82B , 60Si2MnA
Customizable	Can made by your drawings, sample and dimension
Surface Treatment	White zinc plating,  Nickel plating, Chrome plated, Cataphoresis, Become black, Powder coating, Apply oil ,paint or as customers' request
Application	Luxury garage doors,factory lift doors,industrial door installation ,shutter doors in matching torsion and extension spring
Certification	ISO9001
MOQ	Any small trial order is welcome
Deliver time	7-15 workdays based on MOQ
Package	Standard Packaging, Wooden Carton Or as per customers' requirements
Payment term	30%T/T deposit,70% before shipping

How to make Torsion Spring as per your enquiries?
Pls provide me main specification as follows
•Wire diameter 
•Material
•Body length
•Maximum outside diameter, minimum inside diameter
•Number of coils
 Or detailed drawing or real samples is very useful

FAQ:
Q: Are you a manufacturer ? Do you Accept OEM?
A: Yes, as a professional manufacturer, we have been in spring field for over 11 years and we accept OEM! Just give us your design, we will make samples for you soon.

Q: Can you do design for me?
A: Yes. We have a professional team having rich experience in spring design and manufacturing.Just tell us your door dimension(door width&height, door weight and lifting systerm), we can custom designed spring size and spring weight.

Q:What is your strengths?
A: Competitive price
   High quality
   Good communication with customers
   Best after-sales service

Q:What is your packing?
A: a, Standard packing,PE bags, plywood cases, wooden carton, pallet.
   b, Based on your requirements.

Q: How long is your delivery time?
A: Within 3-5 days after order confirmed. Of course, it depends on the actual quantity.

Q: What payment method do you accept?
A: we accept T/T, western union or paypal before production. Other payments are negotiable

Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment.


Q: What is your sea shiping port?
A: SHANGHAI port usually; any problems contact us ASAP.

Q: What is your warranty?
A: One year after sale service.