The auto production factory is located in Yueqing city, Wenzhou, China since 1998. Over the 20 years, DoFo became the leading producer of coil springs in Chang Jiang River District.
DoFo Spring Manufacturing Co., Ltd has been designing and manufacturing for electrical and auto aftermarket & auto parts industry, Home Appliance, etc. We have the largest selections of custom size springs available, and a large inventory of springs for quick shipment in this district.
To meet the multi requirement of different spring types, DoFo builds 4 auto production lines on: compression springs, extension springs, torsion springs, wire forms and spring washers.
Our equipment performs a deflection rate below 1%, feed-backing from one of our customer Chint. We supply different small compression springs, heavy duty compression springs, valve springs for their HV/LV electrical apparatus.
The material is acquired from suppliers with RoHS certification. The production process starts with raw material, continues through our CNC Coiling machines, Tempering Machines, Grinding Machines, Plating Machines. With stringent quality control, the products are qualified for shipping to customers worldwide.
The workshop complies with 6S management standard. We manage the production strictly, based on ISO certification. As we advocate, DoFo’s mission is striving for world class green spring supplier.
|Machine Name||Brand Name||Quantity||Number Of Years Used||Condition|
|Spring Coiling Machine||SCM3-80CNC||4||1||Acceptable|
|Spring Coiling Machine||TCK-26CNC||18||3||Acceptable|
|Thermal Treatment Furnace||RJC530||2||2||Acceptable|
|CNC Spring End Grinder||MH-002||24||5||Acceptable|
|Tensile Testing Machine||0-2000 N||7||3||Acceptable|
|Machine For Testing Torsion||0-200 N.mm||1||2||Acceptable|
|Projecting Apparatus||NO information||1||2||Acceptable|