Grinding machines

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Since the completion of the CGA-type cylindrical grinder in 1940, we further improved our technical capabilities through technical tie-ups with surface grinders in 1963 and cylindrical and double-head grinders in 1970, and launched a series of precision grinders. Since then, we have been providing highly reliable grinding machines that integrate our own elemental technologies to various industries including the automotive and bearing industries. We will continue to provide highly reliable grinding machines that match the needs of the workplace with a focus on quality and automation.

Komatsu NTC technology

Komatsu NTC has delivered many fully automated lines for the production of pallet train parts in the automotive industry.
We have developed a number of ideas for durability and reliability, and have raised each elemental technology to a higher dimension.

Automotive industry processing line

Structure and durability to maintain stable quality and precision even in 24-hour operation

Transport variations

Selection of optimum transfer system according to various workpiece shapes and machining postures

Fluid control technology

It combines high durability with responsiveness and high positioning accuracy

Product lineup

Cylindrical grinding machines

Reliable and proven grinding machines developed in the automotive industry

Profile grinding machines

The infeed axis is a high-precision grinding machine that follows the cam shape by fine feed.

Crankshaft pin grinding machines

Orbit grinding machine that brings together all the technical elements necessary for high precision

Centerless grinding machines

Traditions and achievements passed down from generation to generation. Best-selling machine with high reliability.

Double-head grinding machines

Extremely high rigidity and high precision for efficient production.

■ Cylindrical grinder

　Options in [ ]
Product appearance Product name Distance between centers
mm		 Swing
Φmm		 Grinding wheel diameter
mm		 Grinding wheel width
mm		 Circumferential velocity
m/s
NTG-4SP 250/350 150 400 25 120
NTG-6SP 630 350 450 35 120
NTG-7MAS3560 600 350 760 120 60
NTG-7A45125 1,250 450 760 120
[200] 		60
NTG-9P3560 600 350 910 120 60
NTG-7SA 630 350 760 120
[150] 		60

■ Profile grinder

Product appearance Product name Distance between centers
mm		 Swing
Φmm		 Grinding wheel diameter
mm		 Grinding wheel width
mm		 Circumferential velocity
m/s
NTG-4SC 250 150 400 25 120
NTG-CM28125 1,250 279 350
100 		60 120
60
NTG-CMS3563 630 350 350
130
100
80 		50 120[160]
80
72
60
PX3560 600 350 350
130 		60 120
80

■ Crankshaft pin grinding machines

Product appearance Product name Distance between centers
mm		 Swing
Φmm		 Grinding wheel diameter
mm		 Grinding wheel width
mm		 Circumferential velocity
m/s
NTG-CKS2 3570 （two-horse cart） 700/1,000 350 550 40 120
NTG-CK45125 1,250 450 1,065 100 60

■ Centerless grinding machines

Product appearance Product name Distance between centers
mm		 Swing
Φmm		 Grinding wheel diameter
mm		 Grinding wheel width
mm		 Circumferential velocity
m/s
CLG-1V Φ1.5~Φ50 120 Φ610 125 Φ355
CLG-3BN Φ1.5~Φ120 300 Φ610 305 Φ330
CLG-5BN Φ1.5~Φ120 500 Φ610 510 Φ355
CLG-5BL Φ1.5~Φ150 500 Φ610 510 Φ430

■ Double-headed grinding machines

Product appearance Product name Distance between centers
mm		 Swing
Φmm		 Grinding wheel diameter
mm		 Grinding wheel width
mm		 Circumferential velocity
m/s
DSG-3H Φ50 25 Φ305 50 Φ140
DSG-5H Φ130 55 Φ585 65 Φ150
DSG-7H Φ250 75 Φ760 80 Φ150
DSG-10H Φ400 100 Φ1,065 50 Φ150

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Grinding machines