chip filter, sludge filter, chip/sludge filtration system, LG series chip filter, industrial chip and sludge filter, CNC coolant filtration system, metal chip filtration, energy-saving filtration system, BAUTAI Co., Ltd.

LG Series Bottom Sludge Filter

Pneumatic Operation｜Settled Chip Removal｜Stabilized Return-Flow Design

The LG Series is specifically engineered for coolant tanks and circulation systems used with a wide range of machine tools. Featuring pneumatic operation and a specialized return-flow pressure stabilization design, it quickly and effectively removes settled chips from the bottom of the tank, helping maintain fluid cleanliness and improve machining stability.

Key Features

Energy-efficient and safe operation designed to meet applicable regulatory requirements
Specialized return-flow stabilization design helps prevent splashing and secondary contamination
Modular stainless-steel filtration tank can be configured according to chip size and application requirements
Mobile design allows flexible deployment across multiple machines
Rapid removal of settled chips helps reduce fluid contamination and odor generation

Applicable Equipment

Coolant tanks, circulation tanks, and metalworking fluid systems for a wide range of machine tools.

System Integration

The LG Series can be integrated as a settled-chip removal module within a plant-wide fluid management system:

Fluid tank → LG Series → Filtered fluid returned for recirculation

This configuration helps improve overall tank cleanliness while reducing the risk of machine wear, piping blockage, and coolant system failure. When combined with oil-water separation equipment, it forms a comprehensive metalworking fluid management system.

PRODUCT INTRODUCTION

LG Series Bottom Sludge Filter｜CNC Coolant Tank Sludge Removal and Filtration Equipment

The Bautai LG Series bottom sludge filter is designed for CNC machine coolant tanks, coolant circulation tanks, and industrial fluid management systems. It helps filter and remove metal chips, grinding sludge, machining impurities, and sediment deposited at the bottom of coolant tanks.

With pneumatic drive, modular stainless steel filter tank, and patented pressure-stabilizing return design, the LG Series helps reduce sludge accumulation, coolant contamination, pump clogging, and coolant deterioration. It supports cleaner coolant circulation and more stable machining performance.

Reducing Sludge Buildup and Coolant Contamination

During CNC machining, coolant carries metal chips, grinding sludge, and machining impurities back to the tank. Over time, sludge buildup at the bottom of the tank may cause coolant contamination, unpleasant odor, pump clogging, and secondary contamination. The LG Series helps quickly remove bottom sludge and maintain cleaner coolant circulation.

Pneumatic Drive and Pressure-Stabilizing Return Design

The LG Series adopts pneumatic drive and does not require electric power for operation, improving safety in machining environments. The pressure-stabilizing return design helps reduce splashing and secondary contamination during coolant return, making sludge removal more stable and controlled.

Product Advantages

Energy-Saving and Safe Operation

Pneumatic drive requires no electric power and supports safer operation in machining environments.

Pressure-Stabilizing Return

Helps prevent coolant splashing and reduces secondary contamination during return flow.

Modular Filter Tank

Modular stainless steel filter tank can be configured according to sludge size and site requirements.

Fast Sludge Removal

Quickly removes bottom sludge from coolant tanks to reduce contamination and odor generation.

Extended Equipment Life

Helps reduce pump clogging, equipment wear, and coolant tank contamination.

Application Scenarios

CNC machine coolant tanks and circulation tanks

Metal chips, grinding sludge, and machining impurity filtration

Machining sites requiring fast removal of bottom sludge from coolant tanks

Integrated with oil-water separators for complete fluid management

Single-Machine and System Applications

The LG Series can be used independently for CNC coolant tanks and circulation tanks. It can also be combined with the LW Series oil-water separator to build a complete fluid management system, improving coolant tank cleanliness, reducing equipment wear, and supporting stable machining performance.

SPECIFICATION

LG Series Specifications

Select the suitable LG Series bottom sludge filter according to coolant tank capacity, sludge volume, filtration flow rate, and on-site installation requirements.

LG-F160

Medium-to-Small Tank Filtration Model

Suitable for medium-to-small CNC coolant tanks, coolant circulation tanks, and general bottom sludge cleaning needs, balancing filtration efficiency and flexible site use.

LG-F400

High-Flow High-Capacity Model

Suitable for larger coolant tanks, higher sludge volume, or machining sites requiring higher filtration flow rate and greater circulation efficiency.

Model Selection Guide

The main differences between LG-F160 and LG-F400 are filtration flow rate, filter tank capacity, equipment size, and applicable coolant tank scale. LG-F400 is recommended for larger coolant tanks, higher sludge volume, or higher flow requirements, while LG-F160 is suitable for general medium-to-small CNC coolant tanks.

Item	LG-F160	LG-F400
Weight kg	45	65
Maximum Flow Rate	42 gpm (159 L/min)	100 gpm (378.5 L/min)
Filter Tank Capacity	12 L	19 L
Filtration Accuracy	Standard 1 mm; Optional 0.38 mm (40 mesh), 0.25 mm (60 mesh)
Suction Pipe Diameter	32 mm
Return System	Patented pressure-stabilizing return design
Dimensions mm	680L × 390W × 850H	750L × 410W × 900H
Customization	Available according to site requirements
Note	Dimensions do not include external piping accessories

Not sure whether LG-F160 or LG-F400 is suitable?

Please provide coolant tank photos, coolant condition, sludge volume, machining material, machine quantity, flow rate requirements, and site layout. Bautai can assist with an initial bottom sludge filter selection evaluation.

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