Overhead Garage Door Torsion Spring

• Function: Pressed
• Material: Steel
• Usage: Industrial
• Load Type: Torsion
• Production Process: Hot Roll
• Shape: Torsion-Bar
• Model NO.: Garage Door Spring
• Quality: High
• Service: OEM
• Sample: Available
• Item: Garage Door Spring
• MOQ: 100PCS
• Payment Term: T/T
• Transport Package: Carton+Pallet
• Specification: Custom
• Trademark: Tower
• Origin: China
• Production Capacity: 100000PCS/Month

Product Description

Detailed Photos

Product Description

 

Item	Garage Door Torsion Spring
Material	High carbon steel: 77B/82B/Zinc spring steel/SS spring steel
Wire diameter	5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5mm
Inside diameter	50.8mm-152mm
Free length	325-3500mm
Finish	Oiled tempered/Black coated/Corrosion resistant/Zinc
Winding hand	Left and Right

Company Profile

Ningbo Tower Machinery Co., Ltd is a group of manufacturing established in 2006, offering one-stop solution for quality mechanical products with total lower cost in China. 

We can make all kinds of metal parts, such as laser cutting parts, stamping parts, deep drawn parts, tube laser cutting parts, CNC machining parts, tube bending parts, welding parts, forging parts, especially assembly parts. 

Product market range covers auto industry, medical industry, agricultural machinery, sport industry, trailer and truck industry, architectural industry, wind power equipment industry and so on.

Our factory cover an area of about 20,000 square meter, we have about 60 employees. Now we own the complete production equipment such as laser cutting machines, tube laser cutting machine, stamping machines, hydraulic press machine, tube bending machines, sheet bending machine, stress release machine, welding robots, laser welding machines, CNC center machines, CNC turning machines, sheet rolling machines, sand blasting machines, etc. 

Meanwhile, we have strong capability of design, development and manufacture of tooling and we can produce the products according to customers' drawings and samples.

Our Advantages

1. Professional manufacturer customized products, one stop source for new product developing.
2. Almost full processes in house, which can control the quality and cost better. 
3. Custom logo printing, OEM/ODM service.
4. Strict inspection procedures to guarantee the good quality of each product.
5. Fast delivery and competitive price
6. Patent Protection

Certifications

Packaging & Shipping

FAQ

1. Q: Are you a factory or a trade company?
A: We are a professional factory with ISO

2. Q: Do you make customized products?
A: Yes, all parts are custom made according to customers' drawings or samples. If you have any parts to be made, please feel free to send us your drawings or samples.

3. Q: Will you drawing be safe after we get it?
A: Yes, we will not reveal your design to third party without your permission. And we can sign the NDA before you send us your drawing.

4. Q: What's your MOQ?
A: Usually we don't set MOQ, but big quantity will get a cheaper price. And we are happy to make sample for clients to ensure quality standard firstly.

5. Q. Do you provide samples? Is it free or extra?
A: If you want to check sample first, you need to pay the sample charge and the charge will be refunded to you when the mass order is confirmed.

6. Q: What payment terms are you accept?
A: T/T. 
For tooling and samples, it needs to be paid 100% in advance. 
For bulk order, 50% deposit in advance and the left 50% to be paid before shipment after approval of quality.

7. Q: What information do you need for a quotation?
A: Kindly provide us 2D drawing (pdf. file) and 3D drawing(step/stp. file) for products you need.

8.Q: What is the lead time for samples and bulk order?
A; About samples, if don't need to make tooling, the lead time is around 15 days. If need to make tooling, the lead time is around 35 days. About bulk production, the lead time is about 35-50 days, it depends on quantity and product.