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-disc 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-disc grinding machines

Extremely high rigidity and high precision for efficient production.

Large Profile Grinding Machine

The grinding wheel bearing is NTC oil hybrid bearing with no metal contact.
This ensures high rigidity, vibration suppression and high stability.
 

■ Cylindrical grinder

　Options in [ ]
Product appearance Product name Distance between centers
mm		 Swing
mm		 Grinding wheel diameter
mm		 Grinding wheel width
mm		 Circumferential velocity
m/s
NTG-4SP 250/350 Φ150 400 25 120
NTG-6SP 630 Φ350 450 35 120
NTG-7MAS3560 600 Φ350 760 120 60
NTG-7A45125 1,250 Φ450 760 120
[200] 		60
NTG-9P3560 600 Φ350 910 120 60
NTG-7SA 630 Φ350 760 120
[150] 		60

■ Profile grinder

Product appearance Product name Distance between centers
mm		 Swing
mm		 Grinding wheel diameter
mm		 Grinding wheel width
mm		 Circumferential velocity
m/s
NTG-4SC 250 Φ150 400 25 120
NTG-CM28125 1,250 Φ279 350
100 		60 120
60
NTG-CMS3563 630 Φ350 350
130
100
80 		50 120[160]
80
72
60
PX3560 600 Φ350 350
130 		60 120
80

■ Crankshaft pin grinding machines

Product appearance Product name Distance between centers
mm		 Swing
mm		 Grinding wheel diameter
mm		 Grinding wheel width
mm		 Circumferential velocity
m/s
NTG-CKS2 3570 （two-horse cart） 700/1,000 Φ350 550 40 120
NTG-CK45125 1,250 Φ450 1,065 100 60

■ Centerless grinding machines

Product appearance Product name Distance between centers
mm		 Max infeed grinding width
mm		 Grinding wheel diameter
mm		 Grinding wheel width
mm		 Regulating wheel
mm
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-disc grinding machines

Product appearance Product name Distance between centers
mm		 Max infeed grinding width
mm		 Grinding wheel diameter
mm		 Grinding wheel width
mm		 Feed roller diam
mm
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

■ Large Profile Grinding Machine

Product appearance Product name Max. workpiece length
mm		 Swing
mm		 Grinding wheel diameter
mm		 Grinding wheel width
mm		 Circumferential velocity
m/s
NTG-CKS2 50320
（two-horse cart)
 		3,200 Φ500 Φ950 100 80
NTG-CKS1 90600
(one-horse cart）
 		6,000 Φ900 Φ1,500 180 30

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