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CNC Tool Grinding Machine

RTG 3500 / 3600 / 3700 / 3800

The RTG-series is the world's highest-level grinding machine in the 21st century. It was developed from our long years of expertise and technological know-how from dealing in PCD grinding machines by KANEHIRA. They are a leading grinding machine manufacturer with over 30 years experience in the manufacture of PCD tool grinding machines.

See more imformation about Manual type

Tool Grinding Machine RTG3600

RTG36000 NC type

RTG3500 CCD camera type

RTG3500 CCD camera type

RTG3800 Automatic machine with loader

RTG3800 Automatic machine with loader

RTG3600 movie


By using digital camera, a initial preparatory work performs smoothly, and various measurement and saving measurement image in real time.

Saving a work before and after the processing, so that it contributes quarity assurance.

Observing from low to high magnification by a zoom lens. Especially small diameter nose R set smoothly in high magnification.

Crack or separation of work can be observed by epi-illumination. Especially it demonstrates on regrinding process.

CCDカメラ画像 同心円・半円・クロスライン表示

Concentric circle, semicircle, viewing cross line
Epi-illumination+Transmitted illumination

Camera image Concentric circle,Cross line display

Concentric circle, semicircle, viewing cross line

CCDカメラ画像 XY距離継続透過光源

XY distance measurement
Transmitted illumination

Camera image for Semicircle,Angle measurement

Semicircle,Angle measurement

Camera image 200X

Camera image 200X

Camera image for Drawing of work piece

Drawing of workpiece

Axis composition

Axis composition for Tool Grinding Machine

Processing example

Cylindical mini work piece grinding attachment

Cylindical mini work piece grinding attachment

NC cylindrical grinding: Machining a small-diameter grinding wheel using an index device

NC cylindrical grinding: Machining a small-diameter grinding wheel using an index device

PCD cutter grindin

PCD cutter grinding

PCD cutter

Machining a disposable tip (The tip breaker is machined at the same time)

Machining a disposable tip (The tip breaker is machined at the same time)

PCD cutter


Interactive program

Interactive program


Machine mounted laser measurement (optional)
Machine mounted laser measurement

The Blum laser system measures the configuration of the workpiece on the machine,completely automatically. The results of the measurements are used to prepare for the next machining session,to reduce the time needed for highly accurate machining. Setup time is also substantially reduced.

AE sensor system (option)
AE sensor system

The AE ultrasonic sensor incorporated in the main spindle alerts the operator to any micro-vibration which might occur in the main spindle during operation. The alert is shown in real time on the monitor. It can also be used for checking the resistance while grinding,for sensing contact,and other purposes.

Machine mounted dresser
Machine mounted dresser

The high-performance dresser mounted on the machine continuously keeps the diamond wheel aligned and flat,for the best accuracy. This provides high accuracy,great uniformity ,and high efficiency to your machining operations. Programming for constant compensation will get the most out of the NC.

High-rigidity bed
High-rigidity bed

A number of thick ribs are used for the machine,after careful consideraton of the distribution of mass on the superstructure. This provides the rigidity required of a PCD tool grinding machine,as well as the ability to absorb vibration.

Space saving
Space saving

The entire machine is enclosed snuggly in a housing that uses only a very small floor space for installation (1550mm x 1742mm).There are no unnecessary projections of doors or servomotors. The operation panel is carefully designed and organized for easy operation.

User macro
User macro

A great many user macro programs(some macros are optional) are possible, for easy and efficient operation. The machine comes with some macros already installed. Even operators who are not familiar with NC machines can easili progam a macro. We also stand ready to make customized macros, according to a costomer's machining needs.

The futures of RTG3800

1)8 axes NC control

2)Lazer measuring

3)AE sensor system

4)NC on-board dressing

5)Digital zoom camera device

6)With automatic loader

7)A workpiece is set on exclusive holder

8)Exclusive holder with ID chip

9)Micron folder with tempreture adjustment


Digital camera

Demonstrating power to smoothly start new item.


Mixture flow production is possible by ID.
ID aquires the variations of workpieces and corrects them.

ID+Digital camera

Utlizing quality control and quality assurance by using and saving ID data of workpiece images.

Interactive program

You can create programs easy by PCD tool grinding interactive programming system that combines KANEHIRA's know-how of PCDgrinding over many years. It can response to change shape of item promptly.


Reliability of open CNC in PC is improved greatly. There is no risk of data loss by crush.

Automatic loader

A nighttime unmanned operation is possible.

Standard specifications

  Series RTG3600 RTG3700 RTG3800
Controls CNC axis

6 axis

7 axis
8 axis
Operation panel Equipped with LCD(9.5inch)
Manual pulse generator 1 set
Operation unit FAUNC 32i-MB
Wheel spindle Spindle motor spindle motor
Motor output 1.5kW
Wheel spindle speed 500-4000min-1
Swivel angle AC servomotor(B axis)
Tilting angle 0°-30°
Wheel shape Taper cup type φ200 x T65 x H60
Wheel spindle stock Wheel spindle stock travel AC servomotor(X axis)
Oscillation stroke 260mm
Cross table horizontal travel Right and left Manual NC(V axis)
Cross table horizontal travel Right and left 40mm 25mm
Cross table horizontal travel Back and forth AC servomotor(U axis)
Cross table horizontal travel Back and forth 40mm
Work table swivel AC servomotor(C axis)
Work table swivel angle -95°~+95°
Infeed table travel AC servomotor(Z axis)
Infeed table travel 115mm
Cross table vertical travel AC servomotor(Y axis)
Cross table vertical travel 70mm

Onboard dresser

Back and forth travel AC servomotor
(W axis)
Control function Continuous/intermittent selectable
Wheel for use Cup type φ100mm
Machine weight 2,800kg
Wheel flange 1set
Work tools 1set
Catalog RTG3000series
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CCD camera unit CCD camera 6 magapixel color CMOS
High precision zoom microscope 1-5x
PC Windows 7,HDD250G,DVD drive,
Monitor 17 inch color LCD
Monitor magnification 40-200x (zoom lens)
Measurement function Scale,between two points,radius
Display soft Cross scale,concentric circle,semicircle
Transmitted light LED 6W
Camera Reinforced-camera mount system
Coolant unit A Tank capacity / Pump 60L / 60W
B Tank capacity / Pump 60L / 60W
Filter Simple paper filter
C Tank capacity 120L
Filter Micron filter temperature adjustment
Work table(X-table) digital display  
Signal tower  
Custom macro soft  
Auto measuring unit for wheel position  
Auto measuring unit
for work form
Used laser point gage
Auto measuring software for work  
Wheel axis acoustic unit To know touching with a wheel
Work loading unit  

Special attachments

Diamond wheel Taper cup type
Wheel flange  
Vice Type A Work clamp side lock type
Type B Quick change type
3D vice  
Quick change vice  
Dividing head Mizoguchispring collet type
Min,angle index 1° 12divisions
Standard plate includ
Cylindical grinding attachment Collet type
Dividing table for cylindrical grinding attachment Collet type
Dividing table for cylindrical grinding attachment NCtype  
Cylindical mini work piece grinding attachment  

Maching demention

Maching demention
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