Description:

The Dongcheng D3SE250 500W Three-Phase Bench Grinder is a professional electric grinding machine designed for industrial tool sharpening, metal grinding, edge shaping, deburring and workshop maintenance applications.

Powered by a 500W three-phase electric motor, the D3SE250 delivers a 2,950 RPM no-load speed, providing rotational performance for compatible grinding wheels used in professional metalworking environments.

One of its main features is the double grinding wheel configuration, incorporating both coarse and fine grinding wheels for different stages of the grinding and sharpening process.

The coarse grinding wheel is suitable for initial material removal, metal edge shaping and general grinding applications, while the fine grinding wheel supports lighter grinding, finishing and sharpening tasks.

The grinder accommodates wheels measuring 250 × 25 × 32mm, representing a 250mm (10-inch nominal) outer diameter, 25mm thickness and 32mm mounting hole.

The larger 250mm grinding wheel capacity provides a greater working diameter than standard 150mm and 200mm bench grinders, making the D3SE250 suitable for professional workshop applications involving appropriately sized metal components.

Unlike conventional single-phase bench grinders, the D3SE250 features a three-phase motor, making it suitable for industrial environments with a compatible three-phase electrical supply.

The double-wheel arrangement allows operators to perform coarse and fine grinding operations on the same machine without frequently replacing abrasive wheels.

For operator protection, Dongcheng lists two eye shield assemblies, which help provide a physical barrier against some particles generated during grinding when properly installed.

The manufacturer also lists two sharpening holders, designed to provide workpiece support during suitable tool sharpening and grinding applications.

With a substantial 21.5kg net weight, the D3SE250 is designed for stationary bench-mounted use in professional workshops.

The Dongcheng D3SE250 500W Three-Phase Bench Grinder is suitable for engineering workshops, metal fabrication facilities, machinery maintenance departments and industrial applications requiring a 10-inch double-wheel bench grinding machine.

Technical Specifications:

Motor & Performance Specifications:

Manufacturer Specification Note:

The official Dongcheng product page confirms 500W rated power, 2,950 RPM no-load speed, 250 × 25 × 32mm grinding wheel dimensions and 21.5kg net weight.

Dongcheng identifies two main features:

1. Three-Phase Motor
2. Double Grinding Wheels — Coarse and Fine

The manufacturer also lists two eye shield assemblies and two sharpening holders, with colour box packaging.

A Dongcheng product catalogue identifies 380V for this model, while some regional distributors publish a different no-load speed of 2,840 RPM. The current official product page states 2,950 RPM, which is used throughout this listing.

Electrical voltage and frequency should be confirmed against the actual Pakistani-market machine nameplate before publication or installation.

Exact abrasive wheel grit grades, wheel composition, noise levels and vibration measurements are not specified on the official product page.

Only replacement wheels compatible with the specified dimensions, mounting system and operating speed should be used.

Included Items:

Manufacturer-Listed Features, Accessories & Packaging:

• 1 × Dongcheng D3SE250 500W Three-Phase Bench Grinder
• Coarse Grinding Wheel
• Fine Grinding Wheel
• 2 × Eye Shield Assemblies
• 2 × Sharpening Holders
• Colour Box Packaging

Note: The coarse-and-fine grinding wheel configuration and accessory quantities are identified by Dongcheng. Exact wheel grit grades, electrical connection requirements, mounting hardware and additional package contents should be verified against the actual supplied unit before dispatch.

Recommended Applications:

• Industrial tool sharpening
• Professional metal grinding
• Steel component grinding
• Coarse material removal
• Fine grinding and finishing
• Metal edge deburring
• Metal edge shaping
• Cutting tool edge preparation
• Chisel sharpening with compatible wheels
• Tool bit sharpening
• Machinery maintenance
• Engineering workshop applications
• Industrial repair workshops
• Metal fabrication facilities
• Workshop tool maintenance
• Steel surface preparation
• General bench grinding
• Professional sharpening operations
• Metal component finishing
• Manufacturing workshop maintenance

Application Note: Use only grinding wheels compatible with the 250mm diameter, 25mm thickness and 32mm mounting hole. Wheels must be rated for at least 2,950 RPM and approved for the machine’s mounting arrangement.

The machine must be connected to a correctly specified three-phase power supply by a qualified person. Use the supplied eye shields, suitable eye and face protection, properly adjusted work supports and all required guards. Do not grind on the side of a wheel unless specifically permitted by the wheel manufacturer.

Key Features & Benefits:

500W Three-Phase Electric Motor:
Equipped with a 500W three-phase motor designed for professional grinding, sharpening and industrial workshop applications.

2,950 RPM Grinding Performance:
Delivers a 2,950 RPM no-load speed for suitable bench grinding and sharpening operations.

250mm / 10-Inch Grinding Wheel Capacity:
Supports 250mm grinding wheels, providing a larger working diameter than conventional 150mm and 200mm bench grinder models.

Double Grinding Wheel Configuration:
Features two grinding wheels designed for coarse and fine grinding operations.

Coarse Grinding Wheel:
Supports initial material removal, edge shaping and general grinding of compatible metal components.

Fine Grinding Wheel:
Suitable for lighter grinding, finishing and selected tool sharpening applications.

Three-Phase Motor Configuration:
Designed for environments equipped with a compatible three-phase electrical system.

Two Grinding Functions in One Machine:
Allows operators to perform coarse and fine grinding without regularly changing between abrasive wheel types.

250 × 25 × 32mm Wheel Dimensions:
Designed for grinding wheels measuring 250mm outer diameter, 25mm thickness and 32mm mounting hole.

Large Grinding Wheel Diameter:
The 250mm wheel size provides an increased wheel diameter for suitable workshop grinding operations.

Eye Shield Assemblies:
Dongcheng lists two eye shield assemblies, designed to provide an additional protective barrier during correct operation.

Sharpening Holders:
Includes two manufacturer-listed sharpening holders to support suitable tool sharpening operations.

Stationary Bench Grinder Design:
Designed for installation on a stable, appropriately rated workbench or mounting surface.

Professional Tool Sharpening:
Suitable for sharpening compatible cutting tools with the correct abrasive wheels and operating methods.

Metal Edge Deburring:
Helps remove burrs and surface irregularities from suitable metal workpieces.

Metal Edge Shaping:
The coarse grinding wheel supports shaping and material removal from accessible metal components.

Fine Grinding & Finishing:
The fine wheel supports lighter finishing after initial coarse grinding.

21.5kg Net Weight:
Features a substantial 21.5kg net weight, reflecting its larger stationary grinding machine configuration.

Workshop Maintenance Applications:
Useful for general repair, sharpening and metal finishing tasks in professional engineering and maintenance facilities.

Industrial Metalworking Applications:
Suitable for metal fabrication shops, maintenance departments and industrial facilities requiring compatible three-phase bench grinding equipment.