Internal Grinding Machine

General purpose machine type have Semi Automatic or Automatic control System.
Special Option for YIG-20-MSA :
Digital direct reading system for Work Head Turing Degree is installed.
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Internal Grinding Machine
Craft man's favorite operation system

Product Summary

Special Option for YIG-20-MSA

Type : YIG-20-MSA

Internal Grinding Machine: Automatic Sizing System type

This model has automatic sizing system based on type M as below. It is suitable for models for small quantities production and mass-production.

Special Option for YIG-20-M

Type : YIG-20-M

Internal Grinding Machine: Semi Automatic Sizing System type

This model is general purpose type. It is larger than SA type, therefore it is suitable for machines of gage, jig and tools.
Model for jig and tools machining factory and grinding machining maker.

Type : YIG-15-SA

Internal Grinding Machine

Model for mass production machinery such as car parts, auto bike parts and electrical parts. Single operator possible to use multiple machines.

Type : YIG-20-MSA

Special Option for YIG-20-MSA : Digital direct reading system for Work Head Turing Degree is installed.
1
Super High Precision,Circularity within 0.3-0.4μm
2
High Precision and High Durability of Work Head and Wheel Head
3
General purpose machine type have Semi Automatic or Automatic control System
4
Option items for increasing productivity
5
Flexible turning table: Max 50 degree
*as an option item
Specification
  • YIG-20-M is Semi Automatic Sizing type.
    YIG-20-MSA has Semi Automatic Sizing and Automatic Sizing system.
  • Work head moves vertical & horizontal direction for easy to work position and space value.
  • General purpose grinding machine for large number of changeover process product, internal of material has number of steps, material has large angle taper. And more, possible to grinding external surface and edge surface with same chucking prosess.
  • Range of diameter for machining is 8mm to 20mm.
Example of machining accuracy measurement

Result of Circularity test with test material as follows.

Grinding Process
ProcessImage drawingSemi Automatic typeAutomatic type
1. Start Wheel head will start to move forward after start-up lever lifted up,then Roughing process will start.Once start-up button is pushed, all process will start to operate automatically.
2. Forward 
3. Roughing 
4. Roughing finish. Instructions light switch on. 
5. Dressing Dressing process will start when dressing lever pulled down.
6. Finishing Finishing process is operated with micro cutting handle while monitoring ammeter.
7. Backward Grinding shaft will start to backward after start-up lever pulled down, then machining process will finish.
8.Stop
Dimension
YIG-20-MSA

Automatic Sizing System

YIG-20-M

Semi Automatic Sizing System

The dimension can be change if the specifications are updated.

Diameter of capable grinding8φ-200φ
Maximum grinding lengthφ200mm
Swing over range on carriageφ540mm
Swing over range within water-proof coverφ370mm
*φ200mm -φ400mm as option
Maximum carriage stroke520mm
Carriage moving speedHydro-Static Transmission 0-9m/min
Work head stroke numberStepless inverter
30-800min-1
Work head swiveling angle+15°* 30°for Water proof cover diameter 200mm.
Wheel Head Feeding1sacle φ0.005mm
* Maximum automatic feeding φ0.9mm
Wheel Head Moving DistanceMaximum: 100mm
Work Head Table Moving DistanceVertical Maximum: 200mm
Horizontal Maximum: 240mm
MotorFor work Head: 1.5kw 4P
For wheel head: 2.2kw 2P
For Hydraulic system: 1.5kw 4P
For Coolant system: 100W 2P
For Magnetic Coolant Separator: 25W 4P
Oil tank capacity90ℓ
Coolant tank capacity120ℓ
Floor space2,900×1,350m/m
Gross Weight2,200kg
YIG-15-SA

Automatic Sizing System

The dimension can be change if the specifications are updated.

Diameter of capable grinding 8φ-150φ
Maximum grinding length φ150mm
Swing over range on carriage φ400mm
Swing over range within water-proof cover φ310mm
Maximum carriage stroke 520m/m
Carriage moving speed Hydro-Static Transmission 0-9m/min
Work head stroke number Stepless inverter
30-800min-1
Work head swiveling angle +5°
Wheel Head Feeding 1sacle φ0.005mm
* Maximum automatic feeding φ0.9mm
Wheel Head Moving Distance Maximum: 100mm
Feeding Hydro-Static Transmission, Automatic feeding
Motor For work Head: 1.5kw 4P
For wheel head: 2.2kw 2P
For Hydraulic system: 1.5kw 4P
For Coolant system: 100W 2P
For Magnetic Coolant Separator: 25W 4P
Oil tank capacity 90ℓ
Coolant tank capacity 120ℓ
Floor space 2,700×1,700mm
Gross Weight 2,000kg