Used TOYO T-183C CNC Vertical ID Grinder from Japan

This pre-owned TOYO T-183C CNC vertical internal grinding machine is designed for high-precision grinding of large bores, end faces and selected external surfaces. Originally manufactured in Japan, the machine is equipped with a TOYOMATIC CNC system, X/Z closed-loop feedback, in-process gauging, column cooling and a six-position grinding wheel magazine.

With a maximum workpiece outside diameter of approximately Ø750 mm, this used vertical ID grinder is suitable for bearing rings, spindle sleeves, hydraulic components, gear hubs and other large precision parts. The electrical cabinet appears clean and well maintained, while the machine shows only normal signs of previous use. Final accuracy and operating condition should be confirmed through an under-power inspection or sample grinding test.

Technical Specifications

Reference Accuracy Information

Seller-provided technical information states that the T-183C may achieve:

• Positioning resolution down to approximately 0.1 μm
• Straightness around 0.5 μm over 600 mm
• Sample-part roundness around 0.3 μm
• Sample-part surface finish around Ra 0.1 μm

These figures should be treated as reference results rather than guaranteed accuracy for every workpiece. Actual results depend on tooling, wheel condition, workpiece material, temperature control, setup and machine inspection.

Applications and Suitable Workpieces

The used TOYO T-183C vertical internal grinder is suitable for high-accuracy bore and face grinding of medium-to-large components.

Typical Workpieces

• Large bearing rings and bearing races
• Machine tool spindle sleeves
• Precision spindle housings
• Hydraulic valve blocks and hydraulic cylinder components
• Large gear hubs and internal gear bores
• Flanges and precision circular housings
• Compressor and pump components
• Aerospace bearing seats and precision housings
• Heavy-equipment transmission components
• Large hardened-steel and alloy-steel parts

Suitable Industries

• Bearing manufacturing
• Hydraulic equipment manufacturing
• Machine tool production
• Aerospace component machining
• Automotive transmission production
• Gear manufacturing
• Pump and compressor manufacturing
• Energy equipment production
• Precision contract machining
• Heavy machinery manufacturing

The vertical structure is especially useful for large and heavy circular workpieces because the workpiece can be supported horizontally, helping reduce loading difficulty and deformation during precision grinding.

5. Main Selling Points

Japanese-built precision platform
The TOYO T-183C is designed for demanding internal bore and end-face grinding applications involving large precision parts.

Six-position wheel magazine
Multiple grinding wheels can remain available inside the machine, reducing manual wheel changes and supporting different grinding operations.

In-process measurement
The installed online gauging equipment can support dimensional monitoring during the grinding cycle and help improve production consistency.

Closed-loop X/Z control
Linear-scale feedback on both controlled axes supports fine positioning and repeatable machining.

Thermal stability design
The column cooling system helps control thermal deformation during long grinding cycles.

Large workpiece capacity
The machine can accommodate workpieces with an outside diameter of approximately Ø750 mm.

Well-presented used condition
The photographed electrical cabinet is organized and clean, and the machine shows normal rather than excessive signs of previous use.