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Non Screen Drum Channel Sewage Grinder

Non Screen Drum Channel Sewage Grinder

    The HC non screen drum channel sewage grinders with double shaft cutters can be installed in various channels with different installation frame to reduce the size of solid waste, prevent blocking and protect the downstream equipments like pumps and valves from damage.

    The HC non screen drum channel wastewater grinder is widely used in open channel of integrated prefabricated pump station, wastewater treatment plant,rainwater drainage channels, tunnel drainage pumping station, commercial and residential district pipe network engineering, sewage lifting project etc.

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  • Features
  • Specification

Working principle:


Non screen drum channel sewage grinder working principle

1.  Solid wastes contained in wastewater enter the HC non screen drum channel sewage grinder through open channel.

2.  Double shaft blades shred the solid wastes by rotating in opposite direction.

3.   Solid wastes are reduced to 6 mm-12 mm tiny particles without threat to downstream equipments and pass through the grinder.

Main Components:

Non drum channel wastewater grinder main components Housing:

Sturdy and durable, ASTM A536 ductile cast iron


ANSI 4140 heat treated ally steel with surface harden;

Connected with cutters through six-slot spline.

Double shaft blades:

Low rotating speed, high torque, powerful, low noise.

 Cutters and spacers:

ANSI 4130 alloy steel with hardened surface, 45-55 HRC hardness;

Overlaid with Titanium is available;

Customize cutters with various construction and teeth number to meet different applications.

Mechanical seal assembly:

Tungsten carbide surface with Buna-N seal;

Pressure value up to 6.3 kg/cm².

Elastic coupling:

Shock absorbing and easy maintenance.


Dry & wet motor with IP 55 is available;

Submersible and anti-explosive IP 68 for use under water is available.

Planetary gear reducer:

Strong anti-shock ability.

Side rails:

Increases flow capacity and decreases head loss;

Guides solid wastes into the cutting area.

Installation slot:

Easy and flexible installation cooperated with stainless steel installation frame, little or no civil work needed.

The HC Non screen drum channel sewage grinder is designed for small channel with flow rate from 80 m³ /hour to 1000 m³/hour.

Overall Dimensions:

Non drum wastewater grinder overall dimensions, specification, flow rate