Centerless Grinders

TO-60Ⅱ

A high cost performance machine with enhanced options and multi functionality
Also with improved workability and a lower price compared to conventional machines

Outer diameter of workpiece：
φ3～120

Grinding wheel diameter：
φ610×405×φ304.8

Machine dimensions：
2880×1550×2000

SigmaⅡ

A high performance machine that handles from infeed multi-cavity grinding to throughfeed super abrasive grinding

Outer diameter of workpiece：
φ2～50

Grinding wheel diameter：
φ455×205×φ228.6

Machine dimensions：
2450×1500×1950

TO-6040T-FC-TF

A centerless machine with a constant center of threading
Only one machine setup needed even for long workpieces

Outer diameter of workpiece：
φ20～60

Grinding wheel diameter：
φ610×405×φ304.8

Machine dimensions：
3130×1500×2150

Angular centerless grinding machine

TO-5010S-AR

Stable and simultaneous grinding of the workpiece end face is possible on the periphery of the grinding wheel.
A high efficiency machine for grinding small-diameter long workpieces

Outer diameter of workpiece：
φ3～40

Grinding wheel diameter：
φ510×100×φ228.6

Machine dimensions：
2100×1400×2000

TO-6020S-AR

Stable and simultaneous grinding of the workpiece end face is possible on the periphery of the grinding wheel.
A high efficiency machine for grinding small-diameter long pieces

Outer diameter of workpiece：
φ3～80

Grinding wheel diameter：
φ610×205×φ304.8

Machine dimensions：
2820×1850×2000

TO-6040T-FC-TF

A centerless machine with a constant center of threading
Only one machine setup needed even for long workpieces

Product video

Features

An automatic setup function with a constant center that reduces setup time and has skill free operation
Equipped with NC measures as its standard
GW, RW slide with infeed functions on both sides, also has sliding work rest structure.
An all-round cover prevents grinding mist from scattering and reduces the effects of changes from outside air temperature.

Anti-collision control

This Grinding Machine is equipped with a function that recognizes position information as its standard, so even individuals unfamiliar with the machine can use it with peace of mind.

Image of Anti-collision control

Product video

Centerless Grinders
official YouTube channel

Solution

Bar feeder

Stocker

Grinding performance data


Dimensions	φ20×L2000	φ20×L2000	φ9×L4000	φ25×L3000
Material	Titanium alloy	—	S45C	S45C
Roundness	7.0	7.0	7.0	10.0
Cylindricity（μm）	10.0	10.0	10.0	10.0
Surface roughness（μm）	Ra0.4	Ra0.4	Ra0.4	Rz5.0

※The values are based on requirements.

*Please view the table by scrolling horizontally

A case study

System composition

Click to enlarge image

Performance data of the improvement

graph

Customer having issues with grinding long workpieces

The issue

With regards to the setup and adjustment unique to grinding long workpieces, it is difficult to pass down adjustment and engineering techniques. Also, because it is not possible to quantify it is not possible reduce time and stabilize production.

After implementation

By implementing our Centerless Grinder specialized for long workpieces, it became easier to reproduce setups. Together with the linking of the supply and discharger device, it led to a successful reduction of setup time by 92%.

Specifications

Machine specification

Format		TO-6040T-FC-TF
Grinding performance	Processing diameter	20～60㎜
Grinding performance	Processing length	Max1000㎜
Grinding wheel	Dimensions	φ610×405×φ304.8
	Minimum diameter	φ430
	Maximum peripheral speed	2700m/min
	Motor capacity	37kW（NC spindle motor）
Adjustment wheel	Dimensions	φ330×405×φ203.2
	Minimum diameter	φ270
	Revolution per minute	1～500rpm
	Motor capacity	5.5kW（NC spindle motor）
Machine dimensions		W3130㎜×D1500㎜×H2150㎜
Machine weight		8500kg