Case Studies

Precision Camshaft ( PCS ) is a reputed manufacturer of chilled cast iron cam shafts. Cam shafts are ground on a cam grinder and finished products are supplied to major automobile manufacturer.

To achieve the desired surface finish, we were asked to supply a suitable filtration system. The main criterion’s considered were filtration quality and low filtering media consumption.

Veeraja installed Vacuum filters with magnetic separator as primary filter. A provision was also given to change the media to filter mesh hence making the system totally consumption free.

After evaluating the systems PCS concluded following:

• High filtration quality. Better surface finish.
• Improved fluid life.
• Filtering media consumption dropped by 80%
• Maintenance reduced on pumps, machine slides and coolant nozzles
• Reduced break-downs.
• mproved Tool life as the wheel dressing frequency reduced.

PCS has now installed a 6000 LPM filtration system to handle the complete flow of an Export Oriented shop. Main feature of system is as follows

• Fluid from grinders follows to ‘U’ bottom chutes placed below shop floor.
• Grid of chutes with a gradient of 1:60 carries the dirty fluid to filtration system.
• A pair of Vacuum filters the complete flow of 6000 LPM.
• A unique gate arrangement is provided to isolate any Vacuum filter without stopping fluid flow to shop.
• A set of 6 pumps supply the fluid back.
• Skimmers remove the floating tramp oil.
• A PLC controlled panel with audio/ visual alarm controls the smooth functioning of the complete system.

Benefits of Centralized system seen after 2 years of operation:

• Coolant life increased by 4 times.
• Filtration system placed outside shop, increased the shop utilization by 25%. Customer was able to accommodate more grinders in the same shop.
• All dirt handling is outside shop, keeps the shop clean.
• Energy consumption reduced.