A compression spring is an open-coil helical spring that offers resistance to a compressive force applied axially. Compression Springs are the most common metal spring configuration and are in fact one of the most efficient energy storage devices available. Other than the common cylindrical shape, many shapes are utilized, including conical, barrel and hourglass. Generally, these coil springs are either placed over a rod or fitted inside a hole. When you put a load on a compression coil spring, making it shorter, it pushes back against the load and tries to get back to its original length.
Stainless steel, carbon steel, spring steel, alloy spring steel, refractory steel, brass, bronze, etc
Zinc-plated, nickel-plated, chrome-plated, silver-plated, gold-plated, imitation gold-plated, and as customers request
High quality, competitive prices, first-class fully automatic production equipment , safe package and prompt delivery
Industrial equipment, electronic devices, etc
7-15 days, based on order quantity
Inner plastic bag, outer carton box, and advised by customer
ISO9001:2008 ,ISO14001and ROHs
Advanced CNC computer spring machines with high precision and efficiency
Experienced engineers ,technicians and Skilled Workers
As your request
1 mm and above
The overall length of a spring in the unloaded position
The total number of coils including the active coils,the top and bottom ends
The coils which are free to deflect under a force
Style of Ends
Open / Closed;ground or not
Our computer program can assist you on the load design
Packaging & Shipping
Packaging:innner plastic bags, outer carton box, we can also make it as you requirement.
1. Express---DHL, UPS, Fedex, EMS, TNT
2. Sea transportation
3. Also as customer request
Professional research and development team.
Complete first-class fully automatic production and testing equipment, careful safe package and prompt delivery.
Skilled and well-trained work team.
Provided competitive price and serious quality control.
Passed ISO9001:2008, ISO14001 and ROHs certification.
Over 10 years professional manufacture experience.
Dongguan City Yisen Precision Spring Co., Ltd. (Since 1998) is a high technology hardware company with more than 200 workers, and has been specializing in designing and manufacturing springs, hardware and spring making machines. We've gained worldwide customers' trust with our high design level, top class quality, high grade services and competitive prices, which make us become the supplier for many famous companies in many business lines in the world. Our company has been certified by GB/T19002-1994 idt ISO9002:1994 management system in order to upgrade the whole quality management and provide you with the best quality products and the most valuable services!
What you need to do is sending us your design drawing, samples or design concept draft, after that we will assess your products and budget unit price for you.
We’ll communicate with you again about if there is a need for sample making after your approval.
Production time of samples: 3 days for simple samples and 7 to 10 days for complicated samples which need mold open.
For customers of first cooperation, we can make a proof for free to show our capacity and high efficiency service to you. As for particularly complicated samples, we will communicate with you separately.
Mass production delivery: usually delivery time is 10-15 days, but we can try 7-10 days if it is a rush order. It depends on production plan if it’s a sizable order.
Packaging: as to complicated products, we can special design based on your packing requirement.
Our freight advantage: a) If you are worrying about freight trouble because of your small quantity goods, it will be the best choice to use express. We will offer you the cheaper express price than the official UPS or DHL; for example, 100kg goods only need 6usd/kg and 50kg goods only 7usd/kg. If you just place an order for 1000pcs, you only need to pay very little express charges and gain the fastest delivery.b) If you place a large order, we will help you ship goods by sea, and we are very experienced to handle with it, we can organize all kinds of goods a whole container and recommend best vessels agent for you.