Used Okamoto PSG-84DX Surface Grinder | Japan

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Product Highlight

Used Okamoto PSG-84DX is a Japanese-made precision surface grinder featuring an 850 × 400 mm worktable, an 800 × 400 mm magnetic chuck, and automatic grinding feed functions. This used machine is intended for flat grinding applications in toolrooms, mold-making facilities, and metalworking workshops. It offers an established machine-tool platform for buyers seeking pre-owned Japanese grinding equipment.

Product Description

Used Okamoto PSG-84DX features an 850 × 400 mm worktable, an 800 × 400 mm magnetic chuck, and automatic grinding feed functions. Built for precision surface finishing, it is a practical choice for toolrooms, mold makers, and metalworking workshops. Contact us to discuss its condition, availability, and price.

Technical Specifications

General Information

Parameter	Specification
Manufacturer	Okamoto Machine Tool Works, Ltd.
Brand	Okamoto
Model	PSG-84DX
Machine Category	Precision Surface Grinding Machine
Machine Type	Automatic Surface Grinder
Condition	Used / Pre-owned
Country of Origin	Japan
Control Type	Conventional controls with automatic feed functions
Application	Precision flat surface grinding

Worktable & Grinding Capacity

Parameter	Specification
Worktable Size (L × W)	850 × 400 mm
Magnetic Chuck Size (L × W × H)	800 × 400 × 85 mm
Maximum Table Load	700 kg, including magnetic chuck
T-Slots	3 slots, 17 mm wide
Maximum Longitudinal Travel	950 mm
Maximum Cross Travel	440 mm

Feed System

Parameter	Specification
Longitudinal Travel Speed	To be confirmed
Manual Longitudinal Feed	47 mm per handwheel revolution
Manual Cross Feed	5.0 mm per handwheel revolution
Cross Handwheel Graduation	0.02 mm
Automatic Intermittent Cross Feed	0.5–20 mm per increment
Automatic Continuous Cross Feed	0.2–1.0 m/min
Automatic Vertical Infeed Setting	0.0001–0.03 mm, 15 steps (subject to verification)
Manual Fine Infeed Settings	0.0001 / 0.001 / 0.01 mm
Manual Vertical Feed per Revolution	0.01 / 0.1 / 1.0 mm
Spark-Out Cycle Setting	0–5 cycles
Rapid Vertical Traverse	600 mm/min

Grinding Wheel & Motor

Parameter	Specification
Grinding Wheel Dimensions (50 Hz)	Ø355 × 38 × Ø127 mm
Grinding Wheel Dimensions (60 Hz)	Ø305 × 38 × Ø127 mm
Wheel Spindle Speed (50 Hz)	1,500 rpm
Wheel Spindle Speed (60 Hz)	1,800 rpm
Grinding Spindle Motor	3.7 kW, 4-pole
Hydraulic Pump Motor	2.2 kW, 4-pole
Vertical Feed Motor	0.4 kW AC servo
Listed Electrical Capacity	11.0 kVA

Dimensions & Weight

Parameter	Specification
Listed Machine Dimensions (L × W × H)	3,322 × 2,211 × 2,115 mm
Approximate Machine Weight	3,900 kg
Included Accessories	Subject to confirmation

Technical data is based on the supplied machine specification and cross-referenced PSG-84DX listings. Values may vary by individual machine and configuration. Final specifications should be confirmed before ordering.

Applications & Industries

Used Okamoto PSG-84DX automatic surface grinder is suitable for precision flat grinding operations in a range of metalworking environments.

Precision Mold Manufacturing

Grinding mold plates, mold bases, and flat mold components requiring controlled surface finishing.

Tool and Die Workshops

Finishing suitable tool steel plates, die components, locating surfaces, and precision fixtures.

General Metalworking

Flat surface grinding of ferrous metal components, including parts that require improved surface finish after milling or other machining operations.

Machine Component Manufacturing

Grinding mounting plates, guide surfaces, and other flat machine components within the machine's working capacity.

Maintenance and Repair Workshops

Resurfacing compatible machine parts and restoring flat contact surfaces where sufficient material allowance remains.

The PSG-84DX is particularly relevant to workshops that need an automatic surface grinding machine for recurring flat-grinding work rather than a fully CNC-programmed machining solution.

FAQ

What size workpieces can the Okamoto PSG-84DX handle?

The machine has an 850 × 400 mm worktable, an 800 × 400 mm magnetic chuck, and a maximum table load of 700 kg including the chuck. Workpiece suitability also depends on height, clamping, material, and grinding setup.

Does this PSG-84DX have automatic grinding functions?

Yes. The PSG-84DX is equipped with automatic grinding feed functions, including cross-feed and vertical infeed adjustments. It is a conventional precision surface grinder with automatic functions, rather than a fully programmable CNC grinding machine.

Is this used Okamoto grinder suitable for mold and die manufacturing?

Yes. Its design and working capacity make it suitable for grinding many flat mold plates, tooling components, dies, and precision metal parts. Required surface finish and dimensional tolerances should be confirmed against an actual grinding test.