DRUM SANDER

CORMAK MM3146 400V

Key Strengths of the Machine

- Reinforced construction – a rigid, heavy frame minimizes vibrations and ensures stability, even under intensive use.
- Precise grinding thickness adjustment – a mechanical height gauge allows precise setting of the desired machining dimension.
- Precisely balanced sanding drum – made from drawn aluminum, provides uniform contact with the material and effective cooling.
- Versatile application – suitable for removing old paint, lacquer, corrosion, as well as for smoothing and deburring.
- Metal drive clutch – durable and reliable torque transmission from the motor to the drum.
- Working width up to 920 mm – enables sanding of wide panels in two passes.

Design and Technology

The CORMAK MM3146 model stands out for its robust, industrial-grade construction. The main motor, with a power output of 1.5/2.2 kW (S1/S6), combined with an upgraded feed drive (60 W), provides sufficient power reserve for intensive, continuous operation. The variable speed feed system (0–4 m/min) enables adjustment of the pace according to material type and the desired surface finish quality.

The 2100 × 75 mm sanding belt is driven by a high-speed shaft (2800 rpm), enabling fast and effective material removal. The sanding drum is self-cooling during operation, eliminating surface overheating issues. The side guide has been additionally reinforced, improving parallelism and grinding stability across the full working width.

Precision and Work Efficiency
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The CORMAK MM3146 drum belt sander guarantees repeatable results thanks to the use of a mechanical height adjustment system with a precise scale. The minimum thickness of the processed workpiece is 3.5 mm and the maximum is 100 mm, making it suitable for both thin panels and massive structural components. The effective working width is 460 mm in a single pass (or 920 mm with dual feed), ensuring production flexibility even for large batch components.

Applications

The CORMAK MM3146 through-feed sander for wood is used in:

- joineries and furniture manufacturing plants,
- wood restoration workshops,
- metalworking shops for deburring,
- production of plastic components,
- technological lines for finishing flat surfaces.

Standard Equipment

- Precision aluminum sanding drum
- Metal drum drive clutch
- Working table 460 × 465 mm
- Conveyor belt 1120 × 450 mm
- Thickness gauge with precise scale
- Reinforced side guide
- Extraction port Ø62 mm

Optional Equipment

- Dust extraction system with chip separator
- Sets of sanding belts in various grits
- Infeed table with rollers
- Mobile base with brake

Technical Specifications
MOTOR POWER: S1/S6 1.5/2.2 kW 400V
BELT SPEED: 2800 rpm (for wood and metal)
SANDING BELT DIMENSIONS: 2100 x 75 mm
CONVEYOR BELT DIMENSIONS: 1120 x 450 mm
WORKING TABLE DIMENSIONS: 460 x 465 mm
EXTRACTION PORT DIAMETER: Ø62 mm
FEED SPEED: 0–4 m/min
MINIMUM MATERIAL THICKNESS: 3.5 mm
MAXIMUM WORKING HEIGHT: 100 mm
WORKING WIDTH: 460 (920) mm
UPGRADED FEED MOTOR: 60 W
DIMENSIONS: 880 x 540 x 1230 mm
NET/GROSS WEIGHT: 134/160 kg

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