Cylindrical grinding machines
Small cylindrical grinding machines NTG-6SP
Characteristics
[New] Compact-sized wheel head traverse-type cylindrical grinding machine NTG-6SP
A grinding machine that requires the world’s smallest floor space and has inherited the traditional DNA of Komatsu NTC, such as high accuracy, high productivity and high rigidity.
Cylindrical grinding machines NTG-6,7M Series
Characteristics
Combination of space saving and high productivity
This Series enables our users to configure a line suitable for machining crank cams.
Cylindrical grinding machines NTG-7,9 Series
Characteristics
The basic concept is high quality and reliability.
Operation support functions including production information have been dramatically enhanced.
NTG series specifications
| Specification items | NTG-4SP | NTG-6SP | NTG-5P/6P | NTG-7P | NTG-9P |
|---|---|---|---|---|---|
| Swing over table [mm] |
⌀150 | ⌀350 | ⌀350 | ⌀350 | ⌀450 |
| Distance between centers [mm] |
300 | 630 | 600 | 1,250 | 1,600 |
| Grinding wheels [mm] |
⌀450×25（CBN） | ⌀450×35（CBN） | ⌀510×50×203.2 ⌀610×50×203.2 |
⌀760×150×304.8 | ⌀915×150×304.8 |
| Max. wheel peripheral velocity [m/s] |
120 (CBN) | 80 (CBN) | Standard wheel 60 (CBN wheel 80/120) |
Standard wheel 60 | Standard wheel 60 |
| Max. wheel head rapid traverse [m/min] |
⌀40 | ⌀40 | ⌀40 | ⌀30 | ⌀30 |
| Floor space [approx. mm] |
1,430 x 2,680 | 2,200 x 2,450 | 2,600 x 2,380 | 5,680 x 3,400 | 6,100 x 3,400 |
| Machine main body weight [about kgf] |
3,000 | 9,000 | 4,500 | 14,000 | 16,000 |
| Type | Plain straight type | ||||
| Specification items | NTG-5A | NTG-7MAS | NTG-7SA/7SR | NTG-7A | NTG-9A |
|---|---|---|---|---|---|
| Swing over table [mm] |
⌀350 | ⌀350 | ⌀350 | ⌀350 | ⌀450 |
| Distance between centers [mm] |
600 | 600 | 630 | 1,250 | 1,600 |
| Grinding wheels [mm] |
⌀510×50×203.2 ⌀610×50×203.2 |
⌀610×120(200)×254 ⌀760×120(200)×304.8 |
⌀760×120(200)×304.8 | ⌀760×150×304.8 | ⌀915×150×304.8 |
| Max. wheel peripheral velocity [m/s] |
Standard wheel 60 (CBN wheel 80/120) |
Standard wheel 60 (CBN wheel 80/120) |
Standard wheel 60 | Standard wheel 60 | Standard wheel 60 |
| Max. wheel head rapid traverse [m/min] |
⌀40 | ⌀40 | ⌀40 | ⌀30 | ⌀30 |
| Floor space [approx. mm] |
2,600×2,380 | 3,650×2,730 | 2,900×5,450 | 5,680×3,400 | 6,100×3,400 |
| Machine main body weight [about kgf] |
4,500 | 10,000 | 9,000 | 14,000 | 16,000 |
| Type | 30°Angular type | 30°Angular type | 30°Angular type / -30°Angular type | 30°Angular type | 30°Angular type |