Used Okamoto PSG-84DX Surface Grinder for Sale | Japan

Loading carousel...

Product Highlight

Used Okamoto PSG-84DX is a Japanese automatic precision surface grinding machine with an 850 × 400 mm worktable and an 800 × 400 mm magnetic chuck. Equipped with hydraulic table movement and automatic grinding feed controls, it is designed for precision machining, mold and die manufacturing, tooling, and metal surface finishing. This pre-owned grinder offers a practical way to expand workshop grinding capacity while managing machinery investment costs.

Product Description

Used Okamoto PSG-84DX features an 850 × 400 mm worktable, an 800 × 400 mm magnetic chuck, and automatic grinding feed functions. Designed for precision metalworking, mold making, and toolroom applications, this pre-owned surface grinder offers a practical alternative to investing in new equipment. Contact us for machine condition, availability, and pricing.

Technical Specifications

General Information

Parameter	Specification
Brand	Okamoto
Manufacturer	Okamoto Machine Tool Works, Ltd.
Model	PSG-84DX (PSG84DX)
Series	GRIND-X
Machine Type	Automatic Precision Surface Grinder
Machine Condition	Used / Pre-owned
Country of Origin	Japan
Control Type	Automatic Feed Control with Manual Operation

Worktable and 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-Slot Width × Quantity	17 mm × 3 slots
Maximum Longitudinal Table Travel	950 mm
Maximum Cross Table Travel	440 mm

Longitudinal Table Feed

Parameter	Specification
Longitudinal Table Speed	3–25 m/min*
Manual Longitudinal Feed per Handwheel Revolution	47 mm

Cross Feed System

Parameter	Specification
Manual Cross Feed per Handwheel Revolution	5.0 mm
Cross Feed Handwheel Graduation	0.02 mm
Automatic Intermittent Cross Feed	0.5–20 mm
Automatic Continuous Cross Feed Speed	0.2–1.0 m/min*
Maximum Cross Travel	440 mm

Vertical Feed System

Parameter	Specification
Automatic Vertical Infeed Setting	0.0001–0.03 mm (15 steps)*
Manual Vertical Fine Feed Graduation	0.0001 / 0.001 / 0.01 mm
Vertical Handwheel Feed per Revolution	0.01 / 0.1 / 1.0 mm
Spark-Out Cycles	0–5
Rapid Vertical Feed Speed	600 mm/min
Vertical Feed Drive Motor	0.4 kW AC Servo Motor

Grinding Wheel and Spindle

Parameter	Specification
Grinding Wheel Diameter (50/60 Hz)	355 / 305 mm
Grinding Wheel Width	38 mm
Grinding Wheel Bore	127 mm
Grinding Wheel Spindle Speed (50/60 Hz)	1,500 / 1,800 rpm
Grinding Spindle Motor	3.7 kW / 4 poles

Power and Hydraulic System

Parameter	Specification
Hydraulic Pump Motor	2.2 kW / 4 poles
Vertical Feed Motor	0.4 kW AC Servo Motor
Rated Electrical Capacity	11.0 kVA*

Machine Dimensions and Weight

Parameter	Specification
Overall Length	3,322 mm
Overall Width	2,211 mm
Overall Height	2,115 mm
Approximate Machine Weight	3,900 kg

Technical Note: Specifications are based on supplied machine information and comparable Okamoto PSG-84DX technical references. Values marked with * require confirmation against the actual machine configuration. Machine condition, operational accuracy, electrical supply, and included accessories should be verified before purchase.

Applications & Industries

Used Okamoto PSG-84DX automatic precision surface grinder is designed for flat surface grinding and precision finishing of metal components. Its 850 × 400 mm worktable, magnetic chuck, and automatic feed functions make it suitable for a range of industrial machining and toolroom operations.

Mold and Die Manufacturing

Suitable for surface finishing of mold plates, die components, tooling blocks, and other flat precision parts used in mold and die production.

Precision Metalworking

Used for grinding flat surfaces on steel components where dimensional control, surface finish, and flatness are important manufacturing requirements.

Tool and Fixture Manufacturing

Applicable to the finishing of machine fixtures, guide plates, tooling components, and precision workholding parts.

Machine Tool Maintenance

Can be used to regrind suitable machine components, contact surfaces, and flat mechanical parts during repair and maintenance operations.

General Engineering and Industrial Manufacturing

Suitable for workshops producing machinery components, automotive tooling, industrial equipment parts, and other precision-ground metal products.

The Okamoto PSG-84DX is a practical choice for businesses looking to add precision surface grinding capacity while reducing the upfront investment compared with purchasing a new machine. Actual grinding performance depends on machine condition, tooling, workpiece material, and setup.

FAQ

What is the grinding capacity of the Okamoto PSG-84DX?

The machine features an 850 × 400 mm worktable and an 800 × 400 mm magnetic chuck. Its specified maximum table load is 700 kg, including the chuck. Actual workpiece capacity depends on the workpiece dimensions, material, fixture arrangement, and grinding setup.

Does the Okamoto PSG-84DX support automatic grinding operations?

Yes. The PSG-84DX is equipped with automatic grinding feed functions, including cross-feed and vertical infeed controls. It also supports adjustable spark-out cycles for finishing operations. The operating condition of these functions should be confirmed during machine inspection.

Can this used Okamoto surface grinder be inspected or tested before purchase?

Please contact our sales team to discuss machine inspection and grinding-test availability. Buyers may request details about spindle operation, table movement, feed functions, and grinding performance before making a purchase decision.