Systems clean and regenerate cutting fluids

Cutting fluid cleaning and regeneration systems can be supplied as stand-alone units for single machines, or as a fully automated centralised system servicing a number of machines.

The new DynoFilter cutting fluid cleaning and regeneration systems available from Fluid Solutions can be supplied as stand-alone units for single machines, or as a fully automated centralised system servicing a number of machines where high throughput and 24/7 operation are a requirement.

The equipment has been designed specifically for the grinding industry where fines removal to maintain clean fluids and full coolant recovery from the waste stream is required.

However, the equipment is also suitable for use with machining cells involving a variety of metal cutting/removal operations.

With virtually no limit to the throughput that can be achieved, DynoFilters can be supplied for fluid capacities of up to 100,000 litres/min.

The effective removal of fines and other particulate matter to maintain a completely clean coolant flow leads to more productive use of cutting fluids, maximum production efficiency and full compliance with HSE and 'best working practice' procedures.

The use of a centralised coolant system, connected to machines by overhead feed and return pipework, also eliminates the need for individual machine tool sump and filtration systems.

This also includes 'clean tanks', which inevitably require cleaning and maintenance for removal of sludge build-up which contaminates clean fluid.

The removal of the surplus equipment can free-up valuable floor shop space, providing the opportunity for streamlining the production processes for even greater manufacturing efficiency.

The DynoFilter system utilises several filter drum cassettes which are permanently immersed in the coolant fluid.

Contaminated coolant is drawn under vacuum through the drums which contain a stainless steel filter cloth, which is initially pre-coated with a filter cake from immersion in the waste stream.

This maximises the filtration efficiency to ensure removal of particles even smaller than ten microns.

Filter cake removal and renewal is triggered by fluctuating fluid levels, restricted flow through a drum cartridge or by time-cycle settings designed to suit the machining operations.

Excess filter cake is removed by a scraper brush with discharge of the semi-dry sludge waste cake by drag link conveyor, with provision for retrieval of any entrained coolant fluid for return to the process.

The pre-coat, filtration and cake removal procedures are fully automatic, with some filter drum cassettes always on line to provide uninterrupted cleaning.

The filtration process is also continuous, providing JIT clean fluid supplies with no interruptions to production schedules.

The stainless steel filter cloth is a permanent media, eliminating costs associated with replaceable or renewable filters.

The equipment is also suitable for use with either water-mixed or neat-oil cutting fluids, and the very high cleaning efficiency ensures coolants are kept in an 'as - new' hygienic condition, achieving zero operating costs with safe and effective fluid life being extended to several years in many cases.

Minimum maintenance requirements and the elimination of consumable materials makes the equipment ideal for high volume installations.

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