The quality of our Air Cleaner Plastic Injection Molding, Zinc Die Casting, Zinc Die Casting Parts factory is superior to that of our competitors, but the price of it will never be higher to that of any other brand. Although we face many challenges, we believe that we can gain a firm foothold in the world market with our professional technology and excellent products. Customers' satisfaction is our best advertising. Quality is factory's lifestyle abide by the contract', conforms on the market requirement, joins from the market competition by its good quality likewise as provides more comprehensive and superb support for customers to let them become large winner.
Description
The torsion spring is placed under the door body (closed): one end of the torsion spring is fixed, and the other end is wound to the number of turns required for installation, then the adjusting end of the automatic garage door torsion spring is pushed to the fixed end and tightened to adjust Screws on the flange. The number of turns of the torsion spring = door height ÷ wire wheel circumference + pre-tightening 0.5 to 1 turn.
Put the door on top (ie open state): fix one end of the torsion spring, stretch the torsion spring along the adjusting end by 60 ～ 120mm, pre-tighten 0.5 ～ 1 turn, and finally fix the torsion spring adjusting end on the shaft with screws. Why is the torsion spring stretched? Because the torsion spring's outer diameter will become smaller and the number of turns will increase during the door body lifting process, therefore, the lengthened spring will have a certain gap to facilitate the door body lifting.
Parameter of spring parts
wire diameter | 1mm~1.2mm |
material | carbon steel,alloy spring steel,nickel steel,and stainless steel,zinc steel,pot black steel,phosphor copper,and beryllium copper;etc |
surface treament | black oxide,Zinc/Nicke/Chrome plating,power coating,oiled to prevent rust,passivate,etc. |
Usage | Auto,Furniture,Motor,Car,etc. |
Certificated | ISO 9001,ISO14001 |
Delivery Time | SHIPPING IN TIME WHEN WE GET PAYMENT |
FAQ
Q: Are you trading company or manufacturer ?
A: We are a customized factory.
Q: How long is your delivery time?
A: Generally it is 15-20 days for samples and 25-30 days for mass production, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: How do you ship the goods?
A: We have our cooperation forwarder, they can deliver the goods to you in very short time with competitive price, and you can ship by your own agent as your convenience.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance.
Payment>=1000USD, 30% T/T + 50% Mold Fees in advance, balance before shippment.
B: FOB Tianjin/Beijing. Or EXW, CIF, DUU, ETC
To perfect our provider, we deliver the items together with the fantastic good quality at the reasonable value for Yida Compression Spring for Touch Control. The global competitive environment is becoming more and more fierce. Multi variety, personalized demand, high quality and low cost have become the development trend of enterprise production and operation activities. Since its establishment, our company has been developing and growing. Our growth and transformation come from the power of continuous innovation.