Valve Seats Boring BV90


Valve Seat Boring Machine Model: BV90 with high availability meets the requirements of boring, 

reaming and cutting machining for high accuracy valve guides and valve seats. Triple air-float patented 

centering system and powerful spindle with built-in motor. 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, machining capacity from 18mm to 90mm.To reach the requirements of high precision

 machining for valve guides with a small diameter of 4mm.


Main Specifications 



Type of Drive   System

Air / Electric

Max. Length of   Cylinder Head


Max. Width of   Cylinder Head

500 mm

Max. Height of   Cylinder Head

450 mm

Max. Boring Dia.

18 – 90 mm

Work Head Longitudinal   Floating Travel

990 mm

Work Head Cross   Floating Travel

40 mm

Sphere –   Cylinder Travel

9 mm

Floating   inclination angle of Spindle


Table Travel

160 mm

Vertical Travel   of Spindle

200 mm

Power of   Spindle

1.5 kW Spindle   Motor

Max. Torque of   Spindle Motor

23 Nm

Spindle Speed

100 – 1200 rpm   stepless

Power of Tools   Grinder

0.18 kW

Tools Grinder   Rotation Speed

2800 rpm

Clamper Rotary Angle

+ 42°/ -15°

Required Rated Air   Pressure

6 Bar / 85 PSI

Required Max.   Air Flow

400 L / Min

Required   Continuous Air Flow

60 L / Min

Length of   Machine

1685 mm

Width of   Machine

1050 mm

Max. Height of   Machine

2180 mm

Min. Height of   Machine

1980 mm

Roughness of   Finishing

Ra 0.6

Package Size (   L×D×H )

1860×1150×2200 mm


1500 Kg


1800 Kg


SJMC Machine Tools CO.,LTD               联图二维码.png联图二维码 (3).jpg      

ADD:16/F,Jincheng House,NO.511 Tianmu West Road,Shanghai China 

Tel:  +86 21 53550166Fax: +86 21 63805455

Cell:+86 1391672837 (24h)/Mr.Leo

Mail:   /                                                         

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