SJMC Machine Tools

SJMC is a well-known manufacturer and service provider committed to engine rebuilding through the use of key technologies to provide advanced, reliable machines, as per the list below.

Valve Seats Boring Machine

Model BV60

The BV60 meets the requirements of boring, reaming and cutting machining for high accuracy valve guides and valve seats. The light boring head of patent-based design is equipped with a triple air flotation device, self-centering system and spindle motor. Designed specially for repairing small-sized engines and compound-cylinder engines used on motorcycles and automobiles to reach the requirements of high precision machining for valve guides with a small diameter of 4mm.

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Valve Seats Boring Machine

Model BV90

For boring, reaming and cutting machining for high accuracy valve guides and valve seats. Designed for the valve seats from the smallest to the bigger diameter. This machine can repair any existing engine, from the micro-engine up to the big stationary engine with a machining capacity from 18mm to 90mm and to reach the requirements of high precision machining for valve guides with a small diameter of 4mm.

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Valve Seats Boring Machine

Model BV60M

This guide and seat machine puts you ahead in the fast growing headwork business with the most versatile and accurate machine on the market. Built to take on everything from subcompacts to big diesels.

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Cylinder Boring Machine

Model BM160 B160

This machine is mainly used for repair small-middle sized engine blocks and head. Designed by human engineering, it is easy to operate and has touch screen control. It has spless speed change sevro motor control, cutter pouch spindle and the spindle holder, which provide high accurate and efficiency.

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Cylinder Boring Machine

Model BM150 B150

This machine is mainly used for repair small-middle sized engine blocks and heads. It has 6 shift speed change from gear transmission box and the ability to avoid the torque lose. It has a cutter pouch spindle and spindle holder which provide high accuracy and efficiency. The centralised lubrication system ensures long life for machine use and easy maintenance.

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Valve Refacer

Model VG100-VG100A

This machine is air-operated with a six-ball chuck design for perfect alignment and grinding. It only takes five minutes from clamping to finished grinding and can get a very good roundness and finish.

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