Hoffmann Suction Belt Filter

1. Soiled coolant tank

2. Clean coolant tank

3. Belt flushing

4. Inlet

5. Suction chamber

6. Vacuum pump

7. Drying section

8. Filter cake

9. Cleaning brush

10. Sludge discharge

11. Sludge carriage

12. Suction pump

13. Revolving filter belt

The HOFFMANN Suction Belt Filter (Hoffmann HSF) is a Fully Automatic Filter used for purification of Grinding Oils without the use of any Consumables for the High Precision Grinding Applications. Over 1000 of HOFFMANN Suction Belt Filters are in use all over the World for Critical Grinding Applications.

Its outstanding Filtration Efficiency renders HOFFMANN Suction Belt Filter as an ‘Ultimate’ for Grinding of Precision Gears meant for Automotive, Wind Energy, Mining and Shipbuilding Sectors.

With its attributes such as Reliable Filtration + Cooling Principle, Compact Optimum Footprint and Practically NIL Operating costs, HOFFMANN Suction Belt Filters are Global Leaders when it comes to Critical Gear Grinding Process.

Principle & Construction:

The Grinding Oil laden with Swarf from the Grinding Machine comes in to the Collection & Lifting Section of the HOFFMANN Suction Belt Filter. From here, it is pumped into the Filter Top of the Hoffmann Suction Belt Filter that is placed at an incline. The Suction Pump of the Hoffmann Suction Belt Filter then sucks the Grinding Oil through the Filter Belt into the Clean Coolant Tank where it is efficiently and Precisely cooled by the Hoffmann Cooling System.  Thus, the Treatment Cycle of the Grinding Oil comprising of Filtration + Cooling is completed and the Grinding Oil is then rendered ready for delivery to the Critical Grinding Process.

The Filter Belt of the Hoffmann Suction Belt Filter is an Endless Continuous Belt that is subjected to First Filtration where the Sludge from the Grinding Machine builds a Filter Cake to finely filter out the Grinding Oil. Thereafter the Filter Belt is subjected to Sludge Drying then Sludge Discharge and finally to the Regeneration & Cleaning Cycle through the ‘Hoffmann’s HSF Filter Program’.  Thus, the Hoffmann Suction Belt Filter operates with practically NIL Consumable Cost (No Filter Media – No Filter Aid) on account of the ‘Continuous Programmed Rotation’ of the Endless Filter Belt.