Heavy duty Sanding Machine

Why Do We Need a Sanding Machine?

After hot pressing, plywood is not always perfectly flat or even. The surface may have glue spots, dirt, or small marks. A sanding machine helps fix these problems. It smooths out the surface, makes the board flat and even, and removes any marks. This makes the plywood look better and easier for painting and lamination.

Technical parameters:

Sanding belt size 1340×2800mm

Sanding belt speed 24m/s

Diameter of contact roller 400mm steel roller
400mm rubber roller

Motor

Main motor power 75kW,55kW

Motor power of feeding 11kW

Motor power of lifting 0.75kW

Motor power of brushing 0.75kW

Voltage requirement 380V 50Hz 3Ph

Working air pressure 0.55MPa

Compressed air consumption 0.12m³/min

Speed of suction 25-30m/s

Volume of suction 23000m³/h

What are the Main Components of Plywood Sanding Machine?

1. Feeding System

   • Includes feeding rollers, pressure rollers, and conveyor belts

   • Ensures smooth and consistent feeding of the plywood

   • Typically equipped with an inverter for variable speed control, enabling continuous and stable operation

2. Sanding Unit

   • The core working section, consisting of multiple sanding rollers

   • Divided into coarse sanding rollers and fine sanding rollers for different levels of surface finishing

   • Multi-stage roller combinations help achieve higher surface flatness and better sanding results

3. Abrasive Belt System

   • The sanding belts are looped over the rollers and rotate at high speed to grind the surface

   • Features automatic belt tensioning and tracking systems to maintain smooth, accurate belt movement

4. Dust Collection System

   • Equipped with dust hoods and air duct connections

   • Efficiently removes wood dust and particles generated during sanding, keeping the equipment and working area clean

5. Pressure Mechanism

   • Uses air cylinders or springs to press the boards down during sanding

   • Automatically adjusts pressure based on board thickness to prevent slipping or shifting

6. Electrical Control System

   • Includes PLC, touchscreen interface, buttons, and inverters

   • Controls the entire machine, allows parameter setting, and provides fault alarms

   • Some models also support auto-diagnosis and remote monitoring functions

7. Machine Frame & Safety Devices

   • Built with a heavy-duty frame structure to ensure stability during operation

   • Fitted with safety features such as emergency stop buttons, safety doors, and overload protection to safeguard operators