LDG50 Centrifugal Disc Finishing Machine

The LDG50 centrifugal disc finishing machine is designed for batch deburring, surface smoothing, edge radiusing and polishing. Its rotating bottom disc moves workpieces and finishing media through a stationary bowl. Use the workpiece material, burr condition, dimensions and required finish to select the media, compound and processing settings.

LDG50 Model Specifications

• Bowl volume: 50 L
• Listed working charge: 25 L
• Drive motor power: 1.5 kW
• Disc speed: 50–180 r/min
• Overall dimensions (L × W × H): 1000 × 660 × 1120 mm
• Machine weight: 300 kg
• Listed electrical supply: 380 V / 220 V, three-phase, 60 Hz

The model-specific parameter table below is retained with its original values. Bowl volume, working charge and workpiece quantity describe different loading limits. Check the ordered configuration and nameplate before installation. The noise entry in the original table does not specify measurement conditions; confirm the applicable operating conditions when reviewing noise requirements.

How Centrifugal Disc Finishing Works

The bottom disc accelerates the mixture towards the bowl wall. The mixture then returns towards the centre and is accelerated again, creating circulating contact between the workpieces and tumbling media. Disc speed, loading, water level, media and compound influence the cutting action and finished surface.

Compare the processing action, part contact, handling and separation needs with those of vibratory finishing machines. A representative trial establishes cycle time, material removal and surface results for your parts and processing conditions.

Applications and Process Selection

Potential applications include stamped, cast, machined and turned components requiring burr removal, oxide removal, smoothing or polishing. Review thin, delicate or irregular parts for deformation, contact marks and media lodging. The suitability of a small part depends on the disc-to-bowl gap and the selected media as well as its overall size.

Machine Construction and Options

The main assemblies are the processing bowl, rotating disc, machine base and electrical control cabinet. The bowl uses polyurethane lining. The disc-to-bowl clearance can be adjusted, and the bowl tilts for unloading after the machine has stopped and the locking arrangement is released according to the supplied instructions.

Listed options include Bosch Rexroth speed control, Siemens PLC and touchscreen control, water and compound dosing, rinsing equipment, interchangeable screens and a double-layer screen for removing undersize media. Motorized bowl tilting and separation arrangements depend on the selected configuration. Confirm which equipment is included in the quotation.

Original Model Drawings

Installation and Batch Operation

Position the machine on a level, solid concrete floor with all supports seated correctly. Qualified personnel should verify the electrical supply, protective grounding, controls and motor operation. Inspect the disc clearance, drive belt, bowl lock and drainage arrangement before processing.

The existing instructions describe wet operation with finishing compound and water, and prohibit running the wet process without water. Degrease the parts where necessary, use the specified loading limit and start with the speed control at zero before selecting the processing speed. Review water renewal and drainage for the chosen process. Stop the machine before unlocking and tilting the bowl to unload.

The existing LDG50 loading instructions list a 1:2 workpiece-to-media ratio, a maximum individual workpiece weight of 1 kg and a minimum size of 2 mm. Confirm that these limits and the selected media are suitable for the supplied machine and the proposed parts before loading.

Maintenance and Electrical Reference

Stop and isolate the machine before clearance adjustment, belt adjustment or maintenance. Inspect the lining, disc-to-bowl gap, belt tension, fasteners and bearings, and remove trapped material before restarting. Investigate unusual noise or looseness promptly. Use the manual supplied with the machine for the clearance setting, lubrication interval, lubricant and replacement bearing specifications.

Original Electrical Component Schedule

Disc Clearance Adjustment Drawing

The original drawing identifies the adjusting screw, connecting sleeve, spindle and rotating disc. Clearance adjustment affects part retention and machine operation; have trained personnel follow the procedure for the supplied model.

Discuss Your LDG50 Application

Send Inovatec the part material, dimensions, batch quantity, burr or oxide condition, target finish and required throughput. Include drawings or samples, the site power supply and your loading, separation and wastewater arrangements. These details help us review the LDG50 configuration and propose a suitable trial process.