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PERS LDG 80 SU High Energy Centrifugal Disc Finishing System


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Stock No
Year of Manufacture
New or Used
High energy spinning disc m/c
Other Info
Ex Display machine
Weight (kgs)
External Dimensions (WxDxH mm)
1400 x 1550 x 1825


These All NEW High Energy Disc Systems have been developed for the polishing, deburring and radiusing of small parts in the shortest possible processing time.

The LDGB 80 semi automatic system utilises an integrated loading and separation unit making these machines very compact yet highly efficient.

Pers Kemi in developing this range of high energy disc finishing machines, started by looking at the designs available within the marketplace and their shortfalls. Many of the current designs were over complicated with intricate disc wear adjustment systems that were labour intensive to maintain in the optimum condition.

Machine features

High energy disc machine

The bearing housings often sit below the work bowl and are prone to water ingress and difficult to access. Pers Kemi eliminated both of these trouble spots by placing the bearing in the centre column and incorporating an adjuster so that the disc wear can be easily maintained by simply accessing the adjuster through the top cover.

The control system was also designed with simplicity in mind and based around the OMRON CP1L PLC a best in class compact machine controller, which offers easy user interface to adjust the process variables of speed and process timer functions as well as controlling all of the basic machinery movements and interlocks.

When it comes to controllers for compact machines, our CP1L series offers the compactness of a micro-PLC with the capabilities of a modular PLC. It provides all the functionality you need to control the machine, including outstanding memory capability. 

Matched with an Omron NB5Q TW01B Complete HMI family 5.6 inch, TFT LCD, LED backlit operator touch screen with a resolution of 800x600 and 16-bit high colour. The MMI has inbuilt RS232C Port, USB Port, Ethernet Communication Ports with socket services functionality to give you flexible connectivity for monitoring, operating, logging and remote access.

Programmable using supported operating systems:  Windows 8, Windows 7, Windows Vista®, Windows XP (SP3 or higher).

The disc finisher work-bowl and disc itself are manufactured with performance and durability in mind from a high carbon steel outer one piece chassis, cast with hot poured DuPont HE high grade class 1 polyurethane wear resistant lining, formed into a dodecagon shape with ribbed grooves for increased grinding action. 

Loading and unloading 

Loading and unloading has also been simplified by the addition of a separation chute, mounted directly onto the lip of the work bowl. The chute contains a swinging grading screen that allows the media and parts to be separated in the unload position, whereby the parts are easily removed by hand. The cutting media is then automatically returned to the process bowl when brought back to the vertical rest position. 

 Compound and water recirculation system

 The attached water and compound dosing recirculation system incorporates an attached stainless steel twin section holding tank with level control and auto top-up. The feed water is connected through a Kabi 10-50% hydraulic piston dosing pump allowing the correct percentage of compound solution to be added to the in-feed water at make-up. 

The mixed process solution from the holding tank two is pumped to the process bowl via a submersible Calpeda GX RH 9GF stainless steel pump, whereby the process solution is drawn through the process bowl to the underlying sump tank.

The collected used process solution is then pumped via a Graco Husky 716 air operated diaphragm pump, through the attached stainless steel filter bag housing, removing the bulk of any waste debris before returning to the holding tank one which in turn overflows back to tank two to complete the cycle.

As the process solution is depleted the level control switches automatically tops the system adding the correct amount of chemical additive, so the system is always topped, primed and ready to go.  

Areas of application

High energy centrifugal disc finishing is ideal for deburring, surface grinding, edge breaking/radiusing and polishing of stampings, castings, forged or machined parts. The applications are practically unlimited ranging from, very delicate, thin shim washers with a thickness down to 0.2 mm to heavy gear components with dimensions of over 150 mm.

The centrifugal force of the rotating spinner (0 – 170 RPM) accelerates the components and media, pushing them up the stationary wall of the work bowl, until the kinetic energy is lost and the parts and media falls back onto the rotating disc where the centrifugal force accelerates it again and the process repeats.

The process intensity, is determined by the rotational variable speed of the disc and the level of the water contained within the work bowl, by varying these parameters, either gentle surface smoothing and polishing to an aggressive grinding action can be achieved. Compared to the more conventional vibratory finishing equipment, the centrifugal disc finishing technology offers an advantage of between 10 to 30 times higher performance.

Centrifugal disc finishing benefits

  • Short process time of deburring polishing and radiusing of small and medium size work pieces
  • Highly durable hot-poured polyurethane coated work container and disc
  • Self contained process solution recirculation system
  • Speed controller with frequency inverter
  • Digital touch screen operator panel with process timer

pdf icon Print / Download PERS LDG 80 SU High Energy Centrifugal Disc Finishing System Datasheet

Additional files

Photographs taken prior refurbishment. Our refurbishment service is not available on all machines.