cool-draw chains LB pitch 25/30/35/40/45/50/60/70/80/90/110/120/140/170/180/200/240/250

cool-draw chains

1.OEM is ok.

2.has taken measures to better antirust

3.long-life duration and high strength

4.pre-stretched and anti-fatigue

duce as your sample or drawing

und quality,reasonable price and prompt delivery are what we persue

7.Riveting: two or four sides riveting

8. All parts are heat treatment (quenching and tempering) and controlled in a reasonable tolerance renge.

9.Packing:1pc packing in PP bag,white inner box, then pack in standard export carton or wooden case,also can packing as your requirement,can print your own logo

The Chain technic treatment is as below:

1.Shot peening  =>2.Bluing =>3.Phosphating =>4.Nickel-plated =>5.Zincing =>6.Heat treatment

 =>7.Carburizing =>8.Quenching =>9.Tempering =>10.Oiling =>11.Greasing

DongSheng is specialized in producing all kinds of standard and non-standard chains, e.g. A or B series chains, automobile chains, stainless steel chains, combine harvester chains, heavy-duty cranked link transmission chains, stereo garage chains and maintenance-free chains etc. 

Our factory has whole sets precision equipments such as punch(10sets), bender(7sets), high-speed reel machine(12sets), high-speed pin shaft cut machine(7sets), the most advanced mesh-belt furnace line(2sets),  rotate furnace (9sets) and so on.

The Chain technic treatment is as below:

1.Shot peening  =>2.Bluing =>3.Phosphating =>4.Nickel-plated =>5.Zincing =>6.Heat treatment =>7.Carburizing =>8.Quenching =>9.Tempering =>10.Oiling =>11.Greasing