Hennig, Inc.

9900 N Alpine Road
Machesney Park, IL 61115 US


Hennig CDF (Chip Disc Filtration) System

Hennig CI CDF (Chip Disc Filtration). With the introduction of the Hennig Cast-Iron CDF Filtration System, users now can apply a proven, self-cleaning, permanent-media filtration technology to their cast-iron machining operations to eliminate even large volumes of cast-iron chips and fines from re-circulating coolant without the use of disposable filter media.

The patented Hennig CDF system uses a micronic weave disc for filtering coolant. For the notoriously difficult cast iron applications, the addition of a solid rotating magnetic drum can be applied for efficient removal of floating fines and sludge.


  • Any application requiring coolant filtration


  • Disc filter (25 - 120 microns nominal)
  • Main flood coolant pumps
  • High pressure pump (300 - 100 psi) * Include Metric
  • Backwash CDF pump
  • Disc access panels / backwash manifold
  • Coolant tank
  • Control box


  • Hinge or Scraper belt
  • Single or multiple discs (depending on coolant flow)
  • Solid rotating magnetic drum (for cast iron sludge / swarf)

A Message from Hennig, Inc.

World Wide Machine Tool Protection

Hennig Telescopic Steel Covers For 50 years, Hennig has designed and manufactured all kinds of telescopic steel covers for the protection of machine way surfaces, ball screws, servo motors, glass scales and other sensitive machine parts.

World Wide Machine Tool Protection

Hennig Bellows At Hennig, we have designed and manufactured everything from simple dust protection and material handling bellows to sophisticated extension systems, lamella systems, and specially designed bellows for laser machines and other applications.

RoofProtect Machine Roof Bellow

HENNIG RoofProtect.

As Seen In Modern Machine Shop

Hennig's RoofProtect.

Hennig's RoofProtect Includes Motorized Version for Opening and Closing
EMO 2019: Hennig’s RoofProtect is a lightweight, movable machine roof cover that can be custom designed to any size and most machine systems.

custom tool cnc machine shop

The Unattended Effects of CNC Machine Shop Automation
Automated machining and data collection have helped Custom Tool to not only grow its business through more lights-out production, but also to establish a continuous-improvement mindset that has enabled it to become more efficient in numerous areas.

Roof Bellow Features Double Fold, Clear Fold Material
IMTS 2018: Hennig’s Roof Protect machine roof bellow protects against dust, particles and other debris escaping or entering the machine.

Hennig, AME Expanding Multiple Illinois Facilities
The expansions of these sister companies will add some 100 jobs to the area and accommodate increased customer demand for the company’s machine tool protection and components products.

Case Study: Chip Conveyor System Saves Floor Space
Hennig explains how its CDF system is used to remove a variety of chips and save space for Advanced Machine and Engineering in this short video case study.

Case Study: Chip Conveyors Run Production Efficiently
Hennig chip conveyors on Niigata machining centers maintain efficiencies and production on ductile iron castings used in heavy truck and military drive train projects at this Michigan shop.


Mobile Chip Conveyor For Auger Chip Processing
The company’s mobile chip conveyor allows shops with auger chip processing machine tools to use large chip bins or 55-gallon drums instead of small chip cans. This unit can be rolled around the shop to assist with higher-production auger fed chip loads. It uses standard 110-volt power and has an efficient variable-speed drive.

The system filters particles as small as 25 microns

Effective Filtration Adds Machining Hours
Sussek Machine says its expertise extends beyond what one might expect of a traditional job shop. Off-highway equipment OEMs comprise a large portion of the shop’s clientele, as the company machines steering arms, knuckles, shifter forks and other cast iron components.

Product Categories of Hennig, Inc.

Chip & Sludge Dragouts
Chip Conveyors
Conveyors & Other Part Handling Automation
Coolant Delivery Systems
Coolant Reclamation Equipment
Electrical Switchgear, Enclosures & Components
Maintenance & Repair
Plant Maintenance & Repair Equipment
Protective Enclosures & Covers
Replacement Parts/Repair Parts
Retrofitting, Rebuilding, Remanufacturing Services
Safety Equipment for Additive Manufacturing
Safety Related Products
Way Covers, Way Protectors & Seals