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-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 short diameter long pieces

Product video

Features

With the simultaneous grinding of the outer diameter and the end face, stable grinding is made possible.
Equipped with NC measures as its standard
Utilizes a fixed center high angle system whereby even if the diameter of the grinding wheel is changed, the right angle between the outer diameter and the end face doesn’t change.
Grinding of long and narrow pieces in a short time is now possible.

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

Gantry loader

Parts feeder

Conveyer

Conveyer belts

Grinding performance data


Dimensions	φ46 ×L31	φ6×L80	φ85×L27	φ16×L127
Material	Scr415H	SCM435H	SUJ2	SCM450
Roundness	3.0	3.0	5.0	5.0
Cylindricity（μm）	3.0	3.0	8.0	8.0
Surface roughness（μm）	Ry1.5	Ry1.6	Rmax2.0	Ry0.8

※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 unmanned operation

The issue

Unmanned operating is not possible because the machine has to stop every time the outer diameter taper adjustment takes place during long and continuous grinding.

After implementation

By implementing our angular Centerless Grinder, the automatic taper correction function successfully reduced the adjustment time by 77%. Because of this, unmanned operation was made possible and productivity improved.

Specifications

Machine specification

		TO-6020S-AR1	TO-6020S-AR2
Grinding performance （single work）	Grinding diameter	φ3～80mm
	End face processing diameter	φ3～100mm
	Grinding length	200mm
Grinding performance （2 pieces）	Grinding diameter		φ3～80mm
	End face processing diameter		φ3～100mm
	Grinding length		80mm
Range of manufacturing	Angular angle	0～20°（fixed）
	Center-height angle	6～8°（fixed）
	RW angle	0～2.0°（fixed）
Grinding wheel	Dimensions	φ610×205×φ304.8
	Minimum diameter	φ470
	Motor capacity	15kW（11～22kW）
Adjustment wheel	Dimensions	φ330×205×φ203.2	φ330×80×φ203.2
	Minimum diameter	φ280mm
	Driving system	Timing belt
	Revolution per minute	1～750rpm
	Motor capacity	3.5kW（Servo motor）	3.5kW×2（Servo motor）
Machine dimensions		W2820×D1850×H2000（Including control panel）
Machine weight		6500kg