CEM – Progressive cavity pumps


Construction features:
Pump body:
SBR: Bronze
SBX: Stainless steel AISI 316
Rotor: Stainless steel AISI 316
Stainless steel AISI 316
AISI 316 Stainless steel
Mechanical seal:
ceramics-graphite-NBR (special corrosion resistant)

This item is made to order and can take between 2-4 weeks before delivery



CEM electric Progressive cavity pumps or single screw self-priming pump made in BRONZE (SBR) and STAINLESS STEEL AISI 316 (SBX) equipped with a single screw made in stainless steel AISI 316 that running inside an NBR rubber stator. These pumps are widely used in the nautical sector to emptying the waste tanks, toilet, sewage, and particularly viscous liquids with small solid bodies in suspension

 A screw pump is a positive-displacement (PD) pump that use one or several screws to move fluids or solids along the screw axis. In its simplest form (the Archimedes’ screw pump), a single screw rotates in a cylindrical cavity, thereby moving the material along the screw’s spindle

This ancient construction is still used in many low-tech applications, such as irrigation systems and in agricultural machinery for transporting grain and other solids

CEM Progressive cavity pumps Technical
Image showing CEM SBR and SBX pumps Technical data

Direct current: 

  • Permanent magnet electric motor 12/24V DC
  • Protection IP44
  • Insulation Class F
  • Continuous Duty (S1)

Alternating current:

  • Induction electric motor
    • 110V single-phase (available on request)
    • 230V single-phase
    • 230~400VAC Three-phase
    • 400~690VAC Three Phase
  • Protection IP44/55
  • Insulation Class F
  • Continuous Duty (S1)

The scope of operation: Liquids with small solid bodies in suspension
Temperature range of the liquid: from +0 to +70 °C
Max. suction depth: 6 m
Static pressure inside the pump body: 6 bar max

Additional information


12V DC, 24V DC, 230V, 230~400V

Max Delivery

30l/min, 40l/min, 50l/min, 55l/min, 65l/min, 116l/min, 185l/min, 292l/min

Motor Power

0.55kW, 1.1kW, 1.5kW, 2.2kW, 4kW

Max Head

30m, 40m, 50m, 55m

Head Construction

Bronze, 316 Stainless Steel