Several machining centres in a workshop operate continuously for long periods. During machining, slideway oil, hydraulic oil, lubricating oil and contaminants carried in by workpieces gradually enter the coolant sumps beneath the machines and mix with the coolant.
Over time, tramp oil, floating oil, fine metal particles and suspended contaminants accumulate in the sumps. If they are not removed promptly, the coolant may develop odours, foam and concentration fluctuations, while the filtration load increases. These conditions can affect the working environment and shorten machine-maintenance intervals.
Space in the coolant sump beneath a machining centre is limited, and contaminants usually collect inside the sump and near the liquid surface. Manual cleaning is time-consuming and cannot maintain coolant cleanliness continuously without stopping production.
The workshop therefore needed a compact, easy-to-operate coolant purification solution that could connect directly to the machine sump and continuously remove tramp oil and suspended particles.
An SMT500C coolant purifier was installed beside the machining centre and connected to the sump with flexible hoses. Operating in bypass circulation, the unit draws contaminated coolant from the machine sump, separates oil and settles particles inside the system, and then returns the treated coolant.
The SMT500C continuously removes floating tramp oil, waste oil and suspended particles, reducing their accumulation in the sump. Because the unit is installed beside the machine, maintenance personnel can purify the coolant continuously without making major changes to the existing machine structure.
Following bypass treatment, floating oil and suspended particles in the machining-centre sump were progressively reduced and the coolant condition became more stable. Controlling the surface oil film improved contact between the coolant and air, helping to reduce odours and the risk of microbial growth.
Deposits at the bottom of the sump were also reduced, lowering the burden of routine cleaning and complete fluid replacement. For a workshop operating several machining centres continuously, the SMT500C provides a flexible, mobile and easy-to-maintain coolant purification method.
The SMT500C coolant purifier is suitable for installation beside machining centres, CNC machines and machining lines to treat contamination in individual machines or local coolant sumps.
✓ Removes tramp oil and floating oil from machining-centre coolant sumps
✓ Reduces suspended particles and settled contaminants
✓ Stabilises coolant condition and lowers the risk of odour and deterioration
✓ Reduces manual sump cleaning and fluid-change frequency
✓ Compact footprint enables flexible installation beside machines
✓ Helps extend coolant service life and improve the workshop environment
In a machining workshop, coolant contamination does not occur only once; it accumulates gradually during continuous production. Installing an SMT500C coolant purifier beside the machining centre enables continuous bypass treatment of the sump and timely removal of waste oil, floating oil and suspended particles.
This approach helps keep the coolant clean, reduces machine-maintenance pressure, improves the working environment and supports stable long-term coolant use.
Compact coolant purifier for continuous tramp-oil and particle removal.
Mobile coolant purifier for continuous tramp-oil and particle removal.
