Sludge ZERO
Filtration and High-Pressure Unit

It has been developed for machine tools with internal coolant
supply and systems requiring clean fluid.
The integrated magnetic separator filters out ferrous particles,
while the fabric filter provides a precise secondary
filtration for particles that cannot be captured by the
magnetic separator.

Technical Specifications Technical Specifications

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General Features

Dual-Stage Filtration Technology: Sludge ZERO uses a magnetic separator + filter media (or drum filter) configuration to remove both ferromagnetic and non-magnetic particles. Clean coolant can reach 25–50 micron quality.
Integrated High-Pressure Pump System: Available with 20–70 bar high-pressure options for Through-Spindle Coolant (TSC). Ideal for drilling, deep-hole machining, and high-speed cutting.
Superior Sludge & Particle Management: Automatically evacuates heavy sludge and fine particles that collect at the bottom of the tank, preventing clogs and unplanned downtime.
Energy-Efficient Design: Delivers stable high-pressure output with low power consumption thanks to optimized pump and motor configuration.
Continuous Clean Coolant Supply: Filtered coolant is continuously recirculated back to the machine, significantly reducing consumption and operating costs.
Compact & Modular Construction: Designed to fit beside or behind CNC machines with ease. Its modular build ensures fast maintenance and easy service access.
Low Maintenance Requirement: Magnetic pre-filtration reduces the load on the filter media, extending filter life and lowering maintenance frequency.

Technical Specifications	Unit	Sludge Zero 150	Sludge Zero 300	Sludge Zero 400	Option
Filtration Capacity	lt/min	150	300	400
Filter Surface Area	m²	0.5	0.7	1
Filter Width	mm	500	400	1000
Filtration Accuracy	µ	25–50	25–50	25–50
Magnetic Filter	–	Disc Type	Disc Type	Disc Type	●
Tank Capacity	lt	350	350	650
Tank Dimensions (X / Y / Z)	mm	1000/720/500	1000/720/500	1000/1320/500
Overall Unit Dimensions (L / W / H)	mm	1490/1210/1630	1490/1210/1630	1490/1320/1630
High Pressure Pump Pressure	bar	10–70	10–70	10–70	●
High Pressure Pump Flow Rate	lt/min	30	30	30	●
High Pressure Pump Power Consumption	kW	5.5	5.5	5.5	●
Magnetic Filter Power Consumption	kW	0.25	0.25	0.25	●
Fabric Filter Power Consumption	kW	0.25	0.25	0.25
High Pressure Pump Outlet Diameter	inch	3/4″	3/4″	3/4″
Tank Return Nipple	inch	3″	3″	3″
Control Panel Voltage	V	3~220V/380V / 50 Hz	3~220V/380V / 50 Hz	3~220V/380V / 50 Hz
Cooling Unit	kW	⭐	⭐	⭐	●
Color	RAL	⭐	⭐	⭐	●

Standard Equipment:

Fabric Filter Assembly

Fabric Filter Drive Mechanism

Control Panel

Electrostatic Powder Coating

Waste Fabric Bin

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FAQ’S

Frequently Asked Questions
Sludge ZERO Filtration and High-Pressure Unit

Which CNC machines is Sludge ZERO compatible with?

It is compatible with machining centers, lathes, multi-axis machines, horizontal machining centers, and all CNC machines using Through-Spindle Coolant (TSC). Custom connection kits can be provided.
What is the filtration accuracy of the unit?

Thanks to the magnetic separator + filter media or drum filter combination, clean coolant can reach 25–50 microns.
What is the high-pressure output range?

Depending on the configuration, the system provides 20–70 bar high pressure. Higher pressure options can be manufactured on request.
How often should filter media be replaced?

This depends on sludge volume, but magnetic pre-filtration significantly extends filter life. Weekly or monthly checks are typically sufficient.
How does Sludge ZERO remove sludge from the tank?

Heavy particles settled at the bottom are discharged via a scraper conveyor or an automatic sludge pump, minimizing manual cleaning.
Is the energy consumption high?

No. The pump and motor are optimized for energy efficiency, delivering stable high pressure with low power consumption.
Is maintenance difficult?

Not at all. With wide access covers and a modular structure, maintenance tasks such as filter change, sludge removal, and level checks are simple and quick.
How does coolant recovery work?

Filtered coolant returns to the tank and is recirculated to the CNC machine, reducing consumption and extending coolant life.
Can the system be integrated into automation networks?

Yes. It supports level sensors, pressure sensors, overflow alarms, clogging detection, and automatic start/stop control.
Is international service support available?

Yes. Through Astor Europe’s global service network, installation, maintenance, and spare parts support are available worldwide.