Zinc Black Plated Carbon Steel Extension Spring Tension Spring for Roller Doors

• Function: Drive, Restoration
• Usage: Industrial, Furniture
• Load Type: Torsion
• Production Process: Cold Roll
• Shape: Coil
• diameter kabel: 2,0mm-12,0mm
• Tidak. Model.: QYS189
• arah: tangan kiri & kanan
• Paket Transportasi: Standard Packaging, Pallet or Wooden Case
• Spesifikasi: As your require
• Merek Dagang: QY
• Asal: Hefei Anhui China
• Kode HS: 7320909000
• Kapasitas Produksi: 5000pairs/Week

Deskripsi Produk

We are professional manufacturer of Garage door spring and Industiral door hardwares,including springs,spring cones,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.

These high quality Garage Door Torsion Springs include cones installed on the springs and are sleek, oil tempered and coated black for a strong smoother operation. These sturdy garage door torsion springs are made of steel coils with aluminum cones and can withstand any weather making them the best buy for your garage door. 

• Engineered For Maximum Application Range.
• Minimum 10,000 Cycles, At +/- 7.5lbs Of Target Door Weight.
• Springs Are Made Of Steel Coils With Aluminum Cones.
• Both Winding And Stationary Cones Are Installed.
• Black Coated, Oil Tempered,Galvanized Wire Provides A Clean Durable Finish.
• Clear, Easy To Read Spring Markings For Easy Identification.

Name	Zinc Black Plated Carbon Steel Extension Spring Tension Spring for Roller Doors
Diameter	1 3/4" ,2" , 25/8" , 3 3/4" , 5 1 /4" , 6" and others
Material	72B ,82B , 60Si2MnA,65Mn Etc
Customizable	Can made by your drawings, samples and dimensions
Surface Treatment	White zinc plating,  Nickel plating, Chrome plated, Cataphoresis, Become black, Powder coating, Apply oil ,paint or as customers' request
Application	Garage doors,overhead doors,industrial door installation ,roller shutter doors in matching torsion and extension spring
Certification	SGS ,ISO9001
MOQ	Any small trial order is welcome
Deliver time	7-15 workdays based on MOQ
Package	Standard Packaging, Pallet Wooden Carton Or as per customers' requirements
Payment term	30%T/T deposit,70% before shipping

FAQ:

How to make Torsion Spring as per your enquiries?
1,Pls provide me main specification as follows: 
    •Wirediameter  
     •Material 
     •Body length 
     •Maximum outside diameter, minimum inside diameter 
     •Number of coils
2, detailed drawing or real samples is very useful.
3,  door dimension(door width&height,door weight and lifting systerm) is  also Ok, we can custom designed. 

Q: Are you a manufacturer ? Do you Accept OEM?
A: Yes, as a professional manufacturer, we have been in spring field for over 14years and we accept OEM! Just give us your design, we will make samples for you soon.

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

Q:What is your packing?
A:  •Standard packing,PE bags, plywood cases, wooden carton, pallet.
     •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.