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CMD Channel Monster

Sulzer CMD Channel Monster

The CMD Channel Monster protects pumps and other sensitive equipment by capturing and grinding the toughest wastewater solids in high-flow systems. It utilizes a rotating drum to capture solids and direct them to a powerful, dual-shafted, slow speed, high-torque grinder designed to shred the tough solids that typically cause sewer problems.


  • Open channel configuration
  • Grinder cutter stack heights from 450 mm to 1500 mm
  • Hardened alloy steel cutters (standard), 120 mm diameter
  • Ductile iron housings
  • Stainless steel drum with 12 mm perforations, 254 mm diameter
  • Hardened alloy steel shafts, 50 mm hex
  • Mechanical seals with tungsten carbide faces, 10.3 bar maximum dry working pressure
  • Available with channel or wall mounted frame for easy installation


  • Flow rates up to 1590 m3/hr


  • Pump stations
  • Collection systems
  • Headworks at wastewater treatment
  • Private facility discharge to municipal sewer system
  • Prison sewage system protection

Monster Renew grinder

In place of repairing a worn grinder, choose a Monster Renew unit. Sulzer provides a new, factory-built grinder cartridge to replace the worn grinder cartridge. Remove the motor and reducer from the worn unit, install the motor and reducer on the Monster Renew unit, and install the new assembly in place of the worn unit.
Benefits include:

  • Minimizes operational downtime
  • Quick turnaround
  • All new parts
  • Great time to upgrade unit
  • Full factory warranty on the Monster Renew grinder cartridge

Channel Monster motor assembly

  • Single 4.0 kW motor powers grinder stack and drum
  • Optional explosion proof and immersible motors available
  • 25:1 reducer, cycloidal design

Performance curves

Channel Monster frame options

  • Adapt grinders for easy installation
  • Channel frames to fit most channel types
  • Wall frames to mount on flat or round walls
  • Type 304 or 316 stainless steel construction
  • Guide rails for easy installation and maintenance

Channel Monster controller

  • Ensures maximum grinding ability with minimum stoppage
  • Designed and programmed for specified moto

Channel Monster grinder cutters

Tooth count Thickness Material
7-tooth 11 mm Hardened alloy stee
11-tooth 8 mm Hardened alloy stee
17-tooth Wipes Ready® 11 mm Hardened alloy stee

Channel Monster grinder materials

Part Material
Housings Ductile Iron
Cutters Hardened alloy steel
Drums 304L Stainless steel
Shafts Hardened alloy steel
Mechanical seals Tungsten carbide faces
Gaskets Viton

Dimensions (mm)

Single drummodel

А1 , mm

В, mm

С, mm

Max. flow, m3/h

Approximate net weight1- kg

CDD1810-XDS2.0 1538 775 578 420 323
CDD2410-XDS2.0 1681 918 733 584 563
CDD3210-XDS2.0 1881 1118 933 820 576
CDD4010-XDS2.0 2081 1318 1130 1057 633
CDD6010-XDS2.0 2581 1835 1648 1590 778

1 Based on use of TEFC motor.

CDD Channel Monster grinder model coding

Product family
Solids reduction sewage grinder Q                          
Grinder family CMD double drum Channel Monster   C                        
Grinder configuration New unit with motor (specified separately)     2                      
  Monster Renew unit     E                      
  Monster Renew unit with spool     F                      
Cutter stack height 450 mm (18 inch)       L                    
  600 mm (24 inch)       M                    
  800 mm (32 inch)       N                    
  1000 mm (40 inch)       R                    
  1500 mm (60 inch)       W                    
Flange information Not applicable         X X                
Cutter material Alloy steel             1              
Cutter 7-tooth, 11 mm thick               C 4          
  11-tooth, 8 mm thick               F 3          
  17-tooth Wipes Ready®, 11 mm thick               W 4          
Body material & colour Cast iron blue                   S        
Seals & gaskets material Severe duty seals & Viton gaskets                     V      
Drum diameter 254 mm (10 inches)                       1    
Drum information 12 mm perforated, 304L stainless steel                         B  
Drive configuration Single drive                           S
Example CMD3210-XDS2.0 with 17-tooth Wipes Ready cutters Q C 2 N X X 1 W 4 S V 1 B S

Channel Monster motor assembly

Power Voltage Protection type Motor model code
4,0 kW TEFC 400V, 3-phase, 50 Hz IP55 (standard)    QE1435B2M QE1435B2M
4,0 kW TEFC 400V, 3-phase, 50 Hz IP55 for ATEX (Ex d IIC T4) QE2435B2M
4,0 кВт Immersible 400V, 3-phase, 50 Hz IP68 for ATEX (Ex de IIB T4) QE3435B1M

Channel Monster controller

Grinder motor type Model code for IP65 control panel enclosure  
  Powder coated mild steel material Stainless steel material
4.0 kW IP55 QM1P45XXX QM1S45XXX
4.0 kW IP68 QM2P45XXX QM2S45XXX