72730 Industrial Belt Grinder and Polishing Machine

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The 72730 is built around a continuous spindle and a double-sided machine layout. This allows the machine to be configured for belt grinding on both sides, polishing on both sides, or as a mixed grinding and polishing setup, depending on the application.

That makes it especially useful for production environments where operators need to move from stock removal to finishing without changing to a completely different machine concept.

The machine is designed for abrasive belts up to 100 mm (3.94 in.) width and 3,500 mm (137.8 in.) or 4,000 mm (157.5 in.) length. Contact wheels can be used up to 450 mm (17.72 in.) diameter and 100 mm (3.94 in.) width. For polishing applications, polishing wheels up to 500 mm (19.69 in.) diameter and 100 mm (3.94 in.) width are possible. The spindle diameter is 35 mm (1.38 in.).

Many companies searching for a belt grinder actually need more than aggressive grinding alone. They also need edge breaking, surface preparation, satin finishing, scotch wheel finishing or polishing of metal parts in the same department.

This is where the 72730 stands out. It is not just a simple backstand belt grinder. It is a configurable industrial finishing machine that can be adapted to a range of metalworking tasks, from deburring and cleanup work to finer surface finishing.

Optional features such as variable speed control, reversing and pneumatic belt tensioning make the machine even more adaptable to changing materials and workpiece requirements.

The machine is available for seated or standing operation, which helps adapt the setup to the operator, the workpiece size and the production environment.

• grinding and finishing of stainless steel parts
• deburring of cast and forged components
• polishing of metal fittings and hardware
• satin finishing of visible metal surfaces
• grinding and polishing of medical instruments
• general metal fabrication and workshop use
• preparation of parts before coating or final polishing
• industrial buffing of visible metal parts
• pre-polishing before plating or final finishing
• buffing and polishing of stainless steel, brass and zinc components

For companies processing a broad mix of parts, the 72730 is a strong choice because it combines grinding and polishing capability in one industrial machine platform.

This makes the 72730 a versatile industrial belt grinder for metal, suitable for both heavy grinding and fine finishing operations.

A major advantage of the 72730 is its combination of size, power and flexibility. The machine is available with motor ratings from 2.2 to 5.5 kW (approx. 3.0 to 7.4 hp), depending on the application.

Optional single-speed, two-speed and frequency-converter configurations are available. Variable speed ranges can extend from approximately 700 rpm up to 2,800 rpm depending on machine setup. This helps users adapt the process to different materials, abrasive belts and polishing tools.

The extraction connection is 120 mm (4.72 in.), and the machine is rated for S1 continuous duty with protection class IP54. Base machine weight is approximately 135 to 180 kg (298 to 397 lbs), depending on configuration.

• double-sided industrial design
• grinding, polishing and buffing possible on one machine
• belt sizes up to 100 x 4,000 mm (3.94 x 157.5 in.)
• contact wheels up to 450 mm diameter (17.72 in.)
• polishing wheels up to 500 mm diameter (19.69 in.)
• available for seated or standing operation
• optional variable speed control
• optional reversing
• optional pneumatic belt tensioning arm
• designed for continuous industrial use

The 72730 combines a compact industrial footprint with a generous working range. Overall machine width is approximately 1,280 mm (50.4 in.), with a base width of approximately 640 mm (25.2 in.). Body depth is approximately 510 mm (20.1 in.). Depending on version and layout, working height is around 900 mm (35.4 in.) or 630 mm (24.8 in.).

For US buyers, the 72730 is a strong fit wherever a machine is needed for both everyday grinding and higher-quality finishing. It works especially well for fabrication shops, medical manufacturers, stainless steel processors, general metalworking operations and OEM suppliers that want a more robust and configurable alternative to lighter-duty belt grinder concepts.

Because the machine can be configured for grinding, polishing, or a combination of both, it supports a wider range of finishing tasks without forcing the customer into a dedicated single-purpose setup.

For even more heavy-duty application the floor mounted 72780 is recommended with each side driven by an individual motor and motor ratings up to 7.5 kW.

For lighter applications the work bench or pedestal mounted double sided belt grinding and polishing machine 7725 is recommended.