gear wheel

What key points should be followed in the selection of gear production materials?

The most important thing in gear production process is to select good materials. Only with good materials can we produce high quality gears. For the selection of materials, the main points are as follows: 1. Meet the technological performance of gear material The technological properties of materials refer to the ability of materials themselves to […]

Ball mill pinion

Pinion gear is one of the indispensable spare parts of ball mill equipment, according to the direction of tooth shape can be divided into straight teeth and oblique teeth, there are two kinds of key type and expansion type. Different specifications of the ball mill selection of pinion teeth and modulus are not the same. […]

forging high speed shaft

What is the difference between casting and forging?

Casting is the process where metal is heated until molten. While in the molten or liquid state it is poured into a mold or vessel to create a desired shape. Forging is the application of thermal and mechanical energy to steel billets or ingots to cause the material to change shape while in a solid […]


M25 T21 DIN18CrNiMo7 ball mill pinion(forged pinion shaft) shipped to Russia.

PRM finished producing the pinion shaft within two months, and transported to Shanghai port.

To check atual size of our product with drawing.

CZ customer visited and built cooperation with PRM.

This customer was found by our company’s foreign trade personnel through Internet search at the end of June. After communication by email and Whatsapp, we made two quotations for spur gear, spiral bevel gear and ball mill gear sent by the customer. He was very satisfied with the price and details provided. We received the […]


Application of gear shaft in design

In the usual design, the gear shaft is generally used in the following situations:   Generally gear shaft is a pinion (less teeth gear)   Gearshaft is in the high speed level (low torque level)   the gear shaft is rarely used as a speed sliding gear, generally are fixed running gear, because it is […]


Ball mill running model was delivered to Kluber Lubrication and received highly thanks and praised.

The ball mill operation Model was designed and produced by PRM deliver to Kluber lubrication, and received customer thanks and praise. This ball mill model will be used at exhibition to promote the lubricants. It took just a month only from understanding customer needs, design, production and finish it. Customer is very satisfied with the […]


What is 0 degree spiral bevel gear?

In general, bevel gear is with spiral angle 35 degree. But there is a special bevel gear with spiral angle 0 degree. So it called 0 degree spiral bevel gear. Its shape is similar to straight bevel gear, but with higher strength, lower noise, and 0 degree spiral bevel gear is also with higher accuracy […]


Shipment of gearshaft to Russian Customer.