Used OKAMOTO ACC52EN Surface Grinder for Sale

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Product Highlight

Used OKAMOTO ACC52EN is a Japanese automatic precision surface grinding machine with a 500 × 200 mm grinding capacity, hydraulic longitudinal feed, automatic vertical downfeed, and electromagnetic chuck. Suitable for toolrooms, mold manufacturing, and precision metalworking, this pre-owned grinder offers a practical way to add flat grinding capacity while keeping equipment investment costs under control.

Product Description

Used OKAMOTO ACC52EN automatic surface grinding machine offers a 500 × 200 mm grinding capacity, hydraulic table feed, automatic vertical downfeed, and an electromagnetic chuck. Designed for precision flat grinding, it is a practical option for toolrooms, mold manufacturers, and metalworking workshops looking to expand their machining capabilities without investing in new equipment.

Technical Specifications

Parameter	Specification
Brand	OKAMOTO
Model	ACC52EN (52EN)
Machine Type	Automatic Precision Surface Grinding Machine
Condition	Used / Second-Hand
Country of Origin	Japan*
Grinding Capacity (L × W)	500 × 200 mm
Magnetic Chuck Dimensions	500 × 200 × 80 mm
Maximum Table Load (Including Chuck)	200 kg
T-Slot (Width × Quantity)	17 mm × 1
Longitudinal Table Feed Speed	0.3–25 m/min
Longitudinal Handwheel Feed per Revolution	47 mm
Cross Feed per Handwheel Revolution	5.0 mm
Cross Feed per Dial Graduation	0.02 mm
Intermittent Cross Feed	0.2–12 mm
Continuous Cross Feed Speed	0.1–1.0 m/min
Automatic Vertical Downfeed	0.0001–0.03 mm, 15 steps*
Manual Vertical Feed per Handwheel Revolution	0.01 / 0.1 / 1.0 mm
Vertical Feed per Dial Graduation	0.0001 / 0.001 / 0.01 mm
Spark-Out Passes	0–5
Rapid Vertical Feed Speed	600 mm/min
Maximum Longitudinal Travel	650 mm
Maximum Cross Travel	230 mm
Grinding Wheel Dimensions (OD × Width × Bore)	Ø205 × 19 × Ø50.8 mm
Grinding Wheel Speed (50/60 Hz)	3,000 / 3,600 rpm*
Grinding Wheel Spindle Motor	1.5 kW / 2-pole
Hydraulic Pump Motor	0.75 kW / 4-pole
Rapid Vertical Feed Motor	0.4 kW
Power Supply	3-Phase, 200V / 50Hz or 220V / 60Hz*
Rated Electrical Capacity	5.0 kVA
Machine Dimensions (L × W × H)	2,417 × 1,579 × 1,808 mm*
Machine Weight	Approx. 2,100 kg
Magnetic Chuck	Electromagnetic Chuck with Controller

Specifications are based on the supplied equipment information. Country of manufacture, automatic downfeed increments, spindle speed, electrical configuration, and overall dimensions require machine-specific verification. Actual specifications and operating condition should be confirmed before purchase.

Applications & Suitable Industries

Used OKAMOTO ACC52EN automatic surface grinder is designed for precision flat grinding and surface finishing of suitable metal workpieces. Its automatic feed functions and 500 × 200 mm grinding capacity make it a practical choice for workshops handling small and medium-sized precision components.

Mold and Die Manufacturing

Suitable for grinding mold plates, die components, and precision tooling surfaces where flatness and consistent surface finishing are important.

Precision Toolrooms

Used for finishing jigs, fixtures, tooling components, and other metal parts requiring controlled material removal.

Mechanical Parts Manufacturing

Applicable to surface grinding operations involving steel components, machine parts, and compatible metallic workpieces.

Machine Repair and Maintenance

Useful for resurfacing suitable replacement parts, machine components, and worn flat surfaces within the machine's working capacity.

Small and Medium-Sized Metalworking Workshops

A second-hand Japanese surface grinding machine can help workshops add grinding capacity while reducing the initial equipment investment compared with purchasing a new machine.

FAQ

What is the grinding capacity of the OKAMOTO ACC52EN?

The OKAMOTO ACC52EN has a specified grinding capacity of 500 × 200 mm. It also offers a maximum longitudinal travel of 650 mm and cross travel of 230 mm, making it suitable for a range of small and medium-sized flat grinding applications.

Does this OKAMOTO ACC52EN surface grinder have automatic feed?

Yes. According to the supplied specifications, the machine features hydraulic longitudinal table feed, continuous and intermittent cross feed, and automatic vertical downfeed. It also supports manual feed adjustments for operations requiring additional operator control.

What types of materials can this used OKAMOTO surface grinder process?

The OKAMOTO ACC52EN is suitable for surface grinding hardened steel, tool steel, mold components, and other compatible metallic materials. The appropriate grinding wheel and workholding method must be selected according to the material and required surface finish.