NEMO® BO/BS 호퍼 모노펌프 (직경형 디자인 & 플랜지타입 모터)

The ideal pump for crumbly media in a compact design.



Universally applicable – the NEMO® BO/BS hopper-Shaped Progressing Cavity Pump

The NEMO® BO/BS Progressing Cavity Pump with square/rectangular hopper and coupling rod with feeding screw and force-feed chamber is employed in almost all branches of industry to provide continuous, pressure-stable, gentle and low-pulsation conveyance. This special design guarantees better feed into the conveying elements. Another great advantage of the NEMO® Progressing Cavity Pump is its ability to dose nearly any substance in proportion to rotation speed. In block construction with a flanged drive, this pump is particularly compact and economical.

Features of the NEMO® BO/BS hopper-Shaped Progressing Cavity Pump

  • hopper housing with rectangular inlet flange and feeding screw with force-feed chamber to provide optimal feed for your slowly flowing and pasty media into the conveying elements
  • continuous low-pulsation conveyance unaffected by fluctuations in pressure and viscosity
  • conveyance volume in proportion to rotation speed with high dosing precision over a broad rotational-speed range
  • high pressure capability without valves
  • stator with hopper-shaped entrance for optimal filling of the conveying chamber

The NEMO® BO/BS hopper-Shaped Progressing Cavity Pump offers you:

  • gentle product conveyance
  • pump connections in accordance with national and international standards, as well as in specially designed models
  • easy serviceability

Advantages of the NEMO® BO/BS hopper-Shaped Progressing Cavity Pump

  • variable modular system
  • various rotor/stator geometries and a large spectrum of materials
  • robust and compact block construction
  • the right joint for any application
  • standard mechanical seal, other seals optional

Everything from a single supplier
For the most varied of applications in your processes, it is now possible to procure the NEMO® Progressing Cavity Pumps together with the well-known NETZSCH TORNADO® Industrial Rotary Lobe Pumps.

Take advantage of our decades of experience and know-how in the manufacturing of positive-displacement pumps.



Our Design – Your Advantage: Easy Serviceability, Dependability, Operating Safety

1. Rotor
In wear- and corrosion-resistant designs including the wear-free ceramic rotor NEMO CERATEC.

2. Stator
Vulcanized into the tube with sealing on both sides in a variety of elastomers, plastics and metals. Stator inlet with hopper-shaped opening for improved feed of the product into the conveying chamber.

3. Drive Chain
Coupling rod with feeding screw and force-feed chamber for improved feed into the conveying elements and two gimbal joints for the transmission of power from the drive to the rotor.

4. Shaft Seals
Standard with single-acting, bi-directional, wear-resistant mechanical seal. Upon request, with single- or double-acting mechanical seals of varied designs and from various manufacturers, cartridge and special seals as well as packed glands.

5. Suction and Discharge Housing
Pump housing with square/rectangular hopper. The hopper dimensions can be adapted to the individual application.
Flange and threaded connections in accordance with DIN and international standards. Materials in cast iron, steel, chrome-nickel-steel rubberized; also special materials upon request.

6. Block Construction
The drive is flanged directly to the lantern of the pump, resulting in compact dimensions, low total weight, constant axial heights irrespective of the construction type and size of the drive, and ease of maintenance and serviceability as well as high efficiency.

The NEMO® BO/BS Progressing Cavity Pump is available …

  • in various sizes for flow rates up to 200 m³/h
  • for differential pressures up to 12 bar
  • in various materials, from steel to chrome-nickel-steel to highly acid-resistant materials such as duplex, Hastelloy and titanium
  • with various stator elastomers, from highly abrasion-resistant natural rubber, to oil-, acid-, and alkali-resistant elastomers, to Aflas and Viton.
  • in S & L Geometry for optimal adjustment to the application
  • with a variety of mechanical shaft seals and packed glands as well as special seals

…and conveys

  • highly viscous and crumbly substances that do not have bridge-building tendencies
  • slowly-flowing and non-free-flowing substances with or without suspended solids



… for optimal feed and conveyance of your slowly flowing product, by means of a hopper and feeding screw

The NEMO® BO/BS hopper-Shaped Progressing Cavity Pump is employed in all branches of industry for continuous, pressure-stable, gentle and low-pulsation conveyance and dosing in proportion to speed for nearly all substances.

Wide Spectrum of Applications
The NEMO® BO/BS hopper-Shaped Progressing Cavity Pump is used primarily for substances with the following properties:

  • slowly flowing and non-free-flowing substances
  • substances with solid content
  • shear-sensitive
  • smearing or non-smearing
  • thixotropic and dilatant
  • abrasive
  • adhesive

… such as
thickened or concentrated sludge, viscous pastes, cod-liver oil, fish spawn, sausage paste, lard, dough, potato pulp

Additional Features:

  • low noise, low vibration

Large Range of Capacities and Pressures

  • adjustable capacities up to 200 m³/h
  • for differential pressures up to 12 bar



The following accessories are available for the NEMO® BO/BS hopper-Shaped Progressing Cavity Pump:

  • dry running protection units for NEMOLAST® stators
  • flow sensing unit for solid stators
  • speed monitoring device
  • diaphragm pressure gauges with various connections
  • multi-function pressure instrument
  • quench pot
  • pressurized flushing for double mechanical seal systems
  • ring dosing nozzle
  • chemical anchors
  • stator removal tool
  • adjustable feet
  • mobile and trailer mounted units
  • covers for drives
  • electrical control systems

추가 관심 제품 정보:

NEMO® BF 모노펌프 (호퍼/이송 스크류)

NEMO® BF운전속도에 비례한 정량이송과 함께 맥동 안정적인 압력과 부드럽고 연속적인 운전을 제공하는 대부분의 모든 산업분야에 사용될 있습니다. 펌프는 브릿지를 형성하지 않는 고점도의 촘촘하고 부스러지기 쉬운 물질에 주로 적용됩니다.


NEMO® N-Ipos CY C.Pro 도징 펌프는 환경 및 화학산업에서 사용되는 다양한 화학물의 정량이송을 위한 온전한 합성소재 펌프입니다. 합성소재 구조는 부식성이 심하거나 심하지 않은 화학물을 부드러운 저맥동으로 이송하는 데 적합합니다.

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