M3 Open Hopper Progressive Cavity Pump


Along with a large hopper, the M3 open hopper progressive cavity pump is equipped with a standard bridge breaker, which prevents and solves a number of problems faced by progressive cavity pumps, such as compacting and bridging of thick, clotted material in the hopper, thus making discharge smooth and at the maximum operational efficiency. The M3 Open hopper progressive cavity pump is suitable for the transmission of slurry with a maximum of 45% solid content, and is widely used in both environmental protection and the pharmaceutical industry.

Environmental protection industry: the conveyance of sanitary sewage, industrial wastewater, diluted sludge, activated sludge, dewatered sludge, loose particles, additives and more

Pharmaceutical industry: the conveyance of extract liquor and concentrated liquor for Chinese herbology, ointments, herb residue, dewatered sludge from pharmaceutical factories and more

Specification of VD-P04M3 Open hopper progressive cavity pump (with bridge breaker)

Max working pressure 12 bar

Model Flow range m3/h Rotate speed range rpm Motor power Kw
VD050-011P04M3 1~3 60~160 3~5.5
VD060-019P04M3 2~5 60~160 3~7.5
VD070-029P04M3 3~8 60~160 5.5~11
VD090-053P04M3 5~12 60~120 7.5~18.5
VD100-080P04M3 8~20 50~120 11~22
VD120-120P04M3 10~25 50~100 18.5~37
VD150-230P04M3 15~40 50~90 22~55
VD170-300P04M3 20~50 50-80 30~75

Specification of VD-P06M3 Open hopper progressive cavity pump (with bridge breaker)

Max working pressure 18 bar

Model Flow range m3/h Rotate speed range rpm Motor power Kw
VD050-011P06M3 1~3 60~160 3~7.5
VD060-019P06M3 2~5 60~160 5.5~11
VD070-029P06M3 3~8 60~160 7.5~18.5
VD090-053P06M3 5~12 60~120 11~22
VD100-080P06M3 8~20 50~120 18.5~37
VD120-120P06M3 10~25 50~100 22~55
VD150-230P06M3 15~40 50~90 30~75
VD170-300P06M3 20~50 50~80 45~130

Specification of VD-P08M3 Open hopper progressive cavity pump (with bridge breaker)

Max working pressure 24 bar

odel Flow range m3/h Rotate speed range rpm Motor power Kw
VD050-011P08M3 1~3 60~160 5.5~11
VD060-019P08M3 2~5 60~160 7.5~18.5
VD070-029P08M3 3~8 60~160 11~22
VD090-053P08M3 5~12 60~120 18.5~45
VD100-080P08M3 8~20 50~120 22~55
VD120-120P08M3 10~25 50~100 30~75
VD150-230P08M3 15~40 50~100 45~130

Working principle of the progressive cavity pump

A progressive cavity pump is a displacement pump that, with an interference fit of the rotor in an eccentric motion and a fixed stator, will form a seal cage within the pump, moving material from the inlet to the outlet, thus completing the conveyance of the medium within the seal cage.

Structure of progressive cavity pump

The rotor

The rotor shape can be designed as per customer requirements. For a metal rotor, after surface hardening or a vacuum heat treatment, the hardness can reach up to HRC65-67.

The stator

Materials: NBR, NBRH, HNBR, EPDM and FKM- all of which meet various working conditions

Universal joint

Alternative universal joints include a piy type universal joint, pin and bush joint, sanitary joint, flexible universal joint, spherical teeth universal joint, cross type universal joint and other joints.

Shaft seal

The packing seal and mechanical seal can be selected based on working conditions. The cooling system and flushing system can also be selected for the best possible way to prolong the shaft service life.

Driving system

The alternative driving system includes several high quality driving systems, such as SEW, NORD, ABB and others.

Weifang Subtor as a German Subtor invested company in China, offers wide range of progressive cavity pumps and components. The M3 class progressive cavity pump has typical applications as pulp pumping, sludge pumping, sewage pumping, industrial wastewater pumping, medical liquid pumping, etc. A progressive cavity pump is a type of positive displacement pump, also known as eccentric screw pump. With German supported technology and rich marketing resources, Subtor provides quality PCP pumps with custom solutions for global clients.

Get in touch with us