The secret of the cylinder

Free cutting alloy steel & quenching

All the cylinder&dial are made of free cutting alloy steel,

The top edge of needle cylinder or dial use of quenching process Greatly improve hardness and wear resistance, Improve fabric quality & extended usage life.

The power of nature

Natural Aging

Parts are left outdoors. After more than 12 months of exposure to wind, sun, rain and seasonal temperature changes, repeated temperature stresses are placed on the parts many times, thus promoting the relaxation of residual stresses and stabilizing dimensional accuracy.

Sinker cam box lubrication system

The sinker is lubrication in all directions

Ensure that the shoulder, body and bottom three friction parts of the sinker are fully lubricated to extend the service life of the sinker and reduce the replacement cost.