Special Industrial Machinery
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#22-5-HS-500-10 Shrinker
Cold Expander
Expander
Hot Expander
Hot Expander
Hydraulic Expander
Shrinker for Truck Rim
#34-H5-2000 Shrinker for Alloy Ring Sizing
Shrinker and Expander for Truck Rim
3RC Coiler for Ring Gear Blank
Multi-pieces coiling
3RC Coiler for Ring Gear Blank with Cutter
Coiler for Truck Rim
Rotary Trimmer for Truck Rim
Press Type Expander for Truck Rim
Welder Automation for Passenger Car Rims
Quick Tool Changer for Roll Former
Flash Trimer for Steel and Alminium Rims
Coiler.Press for Steel and Alminium Rims
Expander
KOJIMA's Expander can contribute to cost saving and quality improvement because of its exceeding potentiality in practical use.
Special Features
Some parts, which used to be difficult to be formed with previous forming process, can be formed precisely at one time operation to lead to the reduction of material waste.
- Expanding Process eliminates the stress in metals, which leads to improve the stability of parts and quality of products.
- Precise control within allowance of ±0.05mm can be performed though there are some differences according to shapes, sizes, materials.
- Rotary Roll Former for forming and sizing in hot state is also available.
- KOJIMA's Expander can be applied not only to cylindrical parts but also to polygon parts.
Suitable Industries
- Motor Housings
- Bearing Retainer Ring
- Blower
- Heavy Jet Engine
- Generator Frame
- Missile Case
- Line Pipe
Expanding Process
Shrinker
Shrinker functions in the reverse action to shrink the materials inwardly. This is suitable for the production of parts which requires high precision on outer diameter.
Special Features
- Some parts, which used to require plural process to be formed with previous forming process, can be formed precisely at one time operation.
- The operation with KOJIMA's Shrinker performs the saving of materials compared with Mechanical Process and Plural Process production.
- Improving the strength of products by Cold Process eliminates the stress to obtain high stability.
- Precise control within allowance of ±0.05mm can be performed though there are some differences according to shapes, sizes, materials.
- KOJIMA's Shrinker can be applied not only to cylindrical parts but also to polygon and specially-shaped parts.
Suitable Industries
- Body Frame of Missile, Aircraft
- Motor Frame
- Pulley of Conveyer
- Bearing Case
- Pipe Coupling
Shrinking Process