Drag Finishing Machine

Dongguan Xindingsheng Intelligent Grinding Technology Co., Ltd. is one of the leading manufacturers and suppliers of drag finishing machine in China, featured by quality products and good price. Please rest assured to wholesale bulk customized drag finishing machine from our factory. For quotation, contact us now.

The Drag Finishing Machine is a high-efficiency driven polishing machine independently developed by Xindingsheng, exclusively designed for long-strip workpieces and special-shaped precision components such as smart wear accessories, drills, end mills, jewelry, and pharmaceutical tablet punches. It solves industry pain points of traditional polishers: uneven processing, low efficiency, and poor finishing results.
Adopting an innovative "fixed abrasive + planetary workpiece movement" structure, the upper rotating disc (driven by a K-type geared motor) drives workpieces to achieve high-speed rotation and revolution simultaneously, while the lower grinding tank remains stationary. An automatic lifting device precisely adjusts the processing gap, generating strong friction between workpieces and abrasives for uniform, fast grinding and polishing-outperforming ordinary polishing equipment.
Integrated with PLC intelligent control, Delta frequency conversion stepless speed regulation, and safety door interlock protection, the machine offers high automation, easy operation, stable operation, and low noise. It can load 20 workpieces per batch, supporting both rough grinding and fine grinding with the same bucket. Ideal for precision processing in cutting tool and precision manufacturing industries.

1. Planetary Motion for Uniform & Efficient Polishing

Workpieces achieve high-speed rotation and revolution simultaneously, creating all-round strong friction with fixed abrasives. Processing efficiency is 3x higher than traditional polishers, with uniform surface finish, no blind spots, and ideal polishing results.

2. Multi-purpose for Special Workpieces

Supports both rough and fine grinding without replacing core components. Specifically designed for long-strip and special-shaped workpieces (smart wear parts, drills, end mills, jewelry, tablet punches) that are difficult to process with conventional equipment-wide application range.

3. High Automation & Easy Operation

PLC intelligent control + HMI operation with manual/automatic dual-mode switching. Automatic lifting device precisely adjusts grinding gaps; automatic shutdown after scheduled processing. Operable by one person, significantly reducing labor dependency.

4. Frequency Conversion Speed Regulation for Multi-processes

Equipped with Delta frequency converter (0-40RPM stepless speed adjustment), enabling precise speed setting based on workpiece material and processing requirements-ensuring stable processing quality.

5. Movable Grinding Bucket for Easy Maintenance

Movable grinding tank with 4 bottom casters for easy replacement of abrasive tanks. Built-in bottom discharge valve facilitates quick abrasive cleaning and replacement, reducing maintenance costs.

6. Safe & Stable Operation

Safety door interlock protection (automatic shutdown when door opens); multiple protections (overload, over-temperature, motor fault alarms). Heavy-duty frame welded with square steel tubes-robust structure, stable operation, and low failure rate.

1.Select manual/automatic mode via HMI and set parameters (speed, grinding time) based on processing needs.
2.Fasten workpieces to chucks; move the abrasive-loaded grinding tank to the lift and position accurately.
3.Start the machine: K-type geared motor drives the primary disc, rotating 5 secondary discs (revolution around the primary disc) while secondary discs drive workpieces to rotate at high speed (rotation)-forming a planetary motion trajectory.
4.The automatic lifting device raises the grinding tank to immerse workpieces in abrasives; strong friction between workpieces and fixed abrasives achieves fast, uniform polishing.
5.After processing, the machine shuts down automatically, the tank lowers, and workpieces can be unloaded by opening the safety door.

Applicable Industries

Smart wear equipment, cutting tool manufacturing (drills, end mills), jewelry processing, pharmaceutical equipment (tablet punches), precision hardware, electronic accessories, etc.

Applicable Workpieces

• Smart wear accessories: Smart watch straps, bracelets, precision parts of small smart devices
• Cutting tools: Edge grinding and surface polishing of drills, end mills
• Jewelry: Long-strip/irregular gold/silver jewelry and metal accessories
• Pharmaceutical equipment: Tablet punches, precision pharmaceutical parts
• Others: Long-strip metal workpieces, special-shaped precision components

1. Warranty Period

12-month warranty for the whole machine; 18-month warranty for core components (K-type geared motor, PLC controller, frequency converter).

2. Free Services

Free on-site installation, commissioning, and operation training until operators master skills.

3. 24/7 Technical Support

Professional engineers provide one-on-one consultation and remote maintenance for operation, process optimization, and troubleshooting.

4. On-site Maintenance

30+ after-sales service points nationwide: 24-hour response in urban areas, 48-hour in suburban areas. Lifetime maintenance service (cost of parts and labor only after warranty).

5. Spare Parts Supply

Adequate stock of original spare parts (chucks, worm gear lifts, frequency converters, grinding tanks) with 24-hour delivery commitment.

6. Process Support

Customized processing solutions: Recommend abrasive types, speed parameters, and grinding time based on workpiece material and requirements.

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