DP GROUP, founded in 2016, offer professional laser solutions and sheet metal fabrication machinery. Headquartered in Hong Kong, we operate three factories in mainland China:
DPMach (Dongguan): Specializes in laser cutting, welding, and marking.
DGDY (Dongguan): Focuses on press brake machines with advanced Panel Bender technology.
DPQG (Foshan): Manufactures large tube laser cutting machines for pipes up to 800mm in diameter and 30 meters lenth.
DP GROUP, founded in 2016, offer professional laser solutions and sheet metal fabrication machinery. Headquartered in Hong Kong, we operate three factories in mainland China:
DPMach (Dongguan): Specializes in laser cutting, welding, and marking.
DGDY (Dongguan): Focuses on press brake machines with advanced Panel Bender technology.
DPQG (Foshan): Manufactures large tube laser cutting machines for pipes up to 800mm in diameter and 30 meters lenth.
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RRRP5440C

The RRRP5440C Wet Wide Belt Sander is a high-performance industrial sanding solution designed specifically for metal finishing applications. Equipped with four working stations—three sanding heads and one brush head—this machine performs deburring, oxide removal, edge rounding, slag/dross removal, and fine surface finishing in one efficient pass.
A key feature of this machine is its magnetic conveyor table, which provides a powerful hold on magnetic metal parts, ensuring precise processing without shifting, even for small, thin, or intricate workpieces. Combined with a full wet sanding process, the RRRP5440C ensures superior surface quality, minimizes heat buildup, and significantly extends abrasive lifespan.
3 Sanding Heads: Handle heavy-duty deburring, slag removal, and linear grain finishing.
1 Brush Head: Provides uniform edge rounding, achieving safe and consistent rounded corners.
Efficient one-pass multi-process operation, greatly reducing labor costs and improving efficiency.
High-strength magnetic conveyor holds ferrous metal workpieces securely in place.
Ideal for processing small parts, thin sheets, and precision components without displacement.
Improves stability, reduces errors, and enhances surface quality during sanding.
Operates with a water circulation system, which reduces the risk of material warping or discoloration.
Dramatically reduces dust emissions, creating a safer and cleaner working environment.
Extends abrasive belt lifespan by keeping the sanding area cool and clean.
Smart programmable control with recipe storage for frequently processed parts.
Adjustable belt speed, feed speed, brush speed, and thickness settings.
User-friendly interface enables quick setup and efficient machine operation.
| Item | RRRP5440C Specification |
|---|---|
| Max Working Width | 400 mm |
| Max Working Thickness | 60 mm |
| Min Working Length | 150 mm |
| Number of Stations | 4 (3 Sanding Heads + 1 Brush Head) |
| Abrasive Belt Size | 1910 mm x 400 mm |
| Brush Size | Φ 300 mm x 300 mm |
| Magnetic Conveyor | Equipped (high-strength magnetic hold) |
| First Belt Power | 7.5 kW |
| Second Belt Power | 7.5 kW |
| Third Belt Power | 7.5 kW |
| Brush Motor Power | 5.5 kW |
| Feeding Motor Power | 1.5 kW |
| Lifting Motor Power | 0.37 kW |
| Total Power | Approx. 32 kW |
| Feeding Speed | 0.5 – 6 m/min (adjustable) |
| Belt Linear Speed | 12 m/s |
| Brush Speed | 500 – 1400 rpm (frequency control) |
| Cooling Method | Full Wet Water Circulation System |
| Machine Size (L×W×H) | 3050 × 2150 × 2150 mm |
| Machine Weight | ~3000 kg |
Deburring: Removes sharp edges and burrs from laser-cut, punched, and plasma-cut parts.
Slag and Dross Removal: Effectively handles heavy slag from flame or plasma cutting.
Oxide Removal: Strips oxide layers for improved welding and coating preparation.
Edge Rounding: Achieves 0.5mm to 2mm radius on part edges for enhanced corrosion resistance and safety.
Surface Finishing: Provides brushed, satin, or smooth finishes ideal for decorative and functional purposes.
✅ Laser cutting parts finishing
✅ Stamping and punching part deburring
✅ Plasma or oxy-fuel cut part slag removal
✅ Stainless steel decorative panels
✅ Cabinet doors, machine enclosures
✅ Kitchenware, elevator panels
✅ Steel doors and window frames
✅ Electrical equipment casings
✅ Structural steel edge rounding
✅ Surface preparation before powder coating, painting, or plating
✔️ Stainless Steel
✔️ Mild Steel / Carbon Steel
✔️ Galvanized Steel
✔️ Magnetic Alloys
✔️ (Non-ferrous metals like aluminum are not suitable for magnetic table)
✅ Stable processing of small, thin, or awkwardly shaped parts due to magnetic hold.
✅ One-pass multi-stage sanding improves efficiency and reduces production time.
✅ Wet process prevents discoloration and burning of metal surfaces.
✅ Heavy-duty build quality suitable for continuous industrial use.
✅ Advanced PLC control ensures operating convenience and repeatable precision.
✅ Ideal for both mass production factories and job shops.
The RRRP5440C Wet Wide Belt Sander with Magnetic Conveyor offers ultimate versatility in metal finishing processes. Its multi-station design, stable magnetic workholding, and wet cooling system make it the ideal choice for manufacturers seeking high precision, efficiency, and quality in metal surface preparation.
With automatic programmable control, reduced manual labor, and the ability to handle complex finishing tasks in one cycle, the RRRP5440C provides superior results in deburring, oxide removal, edge rounding, and surface finishing, especially for magnetic materials.



The RRRP5440C Wet Wide Belt Sander is a high-performance industrial sanding solution designed specifically for metal finishing applications. Equipped with four working stations—three sanding heads and one brush head—this machine performs deburring, oxide removal, edge rounding, slag/dross removal, and fine surface finishing in one efficient pass.
A key feature of this machine is its magnetic conveyor table, which provides a powerful hold on magnetic metal parts, ensuring precise processing without shifting, even for small, thin, or intricate workpieces. Combined with a full wet sanding process, the RRRP5440C ensures superior surface quality, minimizes heat buildup, and significantly extends abrasive lifespan.
3 Sanding Heads: Handle heavy-duty deburring, slag removal, and linear grain finishing.
1 Brush Head: Provides uniform edge rounding, achieving safe and consistent rounded corners.
Efficient one-pass multi-process operation, greatly reducing labor costs and improving efficiency.
High-strength magnetic conveyor holds ferrous metal workpieces securely in place.
Ideal for processing small parts, thin sheets, and precision components without displacement.
Improves stability, reduces errors, and enhances surface quality during sanding.
Operates with a water circulation system, which reduces the risk of material warping or discoloration.
Dramatically reduces dust emissions, creating a safer and cleaner working environment.
Extends abrasive belt lifespan by keeping the sanding area cool and clean.
Smart programmable control with recipe storage for frequently processed parts.
Adjustable belt speed, feed speed, brush speed, and thickness settings.
User-friendly interface enables quick setup and efficient machine operation.
| Item | RRRP5440C Specification |
|---|---|
| Max Working Width | 400 mm |
| Max Working Thickness | 60 mm |
| Min Working Length | 150 mm |
| Number of Stations | 4 (3 Sanding Heads + 1 Brush Head) |
| Abrasive Belt Size | 1910 mm x 400 mm |
| Brush Size | Φ 300 mm x 300 mm |
| Magnetic Conveyor | Equipped (high-strength magnetic hold) |
| First Belt Power | 7.5 kW |
| Second Belt Power | 7.5 kW |
| Third Belt Power | 7.5 kW |
| Brush Motor Power | 5.5 kW |
| Feeding Motor Power | 1.5 kW |
| Lifting Motor Power | 0.37 kW |
| Total Power | Approx. 32 kW |
| Feeding Speed | 0.5 – 6 m/min (adjustable) |
| Belt Linear Speed | 12 m/s |
| Brush Speed | 500 – 1400 rpm (frequency control) |
| Cooling Method | Full Wet Water Circulation System |
| Machine Size (L×W×H) | 3050 × 2150 × 2150 mm |
| Machine Weight | ~3000 kg |
Deburring: Removes sharp edges and burrs from laser-cut, punched, and plasma-cut parts.
Slag and Dross Removal: Effectively handles heavy slag from flame or plasma cutting.
Oxide Removal: Strips oxide layers for improved welding and coating preparation.
Edge Rounding: Achieves 0.5mm to 2mm radius on part edges for enhanced corrosion resistance and safety.
Surface Finishing: Provides brushed, satin, or smooth finishes ideal for decorative and functional purposes.
✅ Laser cutting parts finishing
✅ Stamping and punching part deburring
✅ Plasma or oxy-fuel cut part slag removal
✅ Stainless steel decorative panels
✅ Cabinet doors, machine enclosures
✅ Kitchenware, elevator panels
✅ Steel doors and window frames
✅ Electrical equipment casings
✅ Structural steel edge rounding
✅ Surface preparation before powder coating, painting, or plating
✔️ Stainless Steel
✔️ Mild Steel / Carbon Steel
✔️ Galvanized Steel
✔️ Magnetic Alloys
✔️ (Non-ferrous metals like aluminum are not suitable for magnetic table)
✅ Stable processing of small, thin, or awkwardly shaped parts due to magnetic hold.
✅ One-pass multi-stage sanding improves efficiency and reduces production time.
✅ Wet process prevents discoloration and burning of metal surfaces.
✅ Heavy-duty build quality suitable for continuous industrial use.
✅ Advanced PLC control ensures operating convenience and repeatable precision.
✅ Ideal for both mass production factories and job shops.
The RRRP5440C Wet Wide Belt Sander with Magnetic Conveyor offers ultimate versatility in metal finishing processes. Its multi-station design, stable magnetic workholding, and wet cooling system make it the ideal choice for manufacturers seeking high precision, efficiency, and quality in metal surface preparation.
With automatic programmable control, reduced manual labor, and the ability to handle complex finishing tasks in one cycle, the RRRP5440C provides superior results in deburring, oxide removal, edge rounding, and surface finishing, especially for magnetic materials.


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