Rotor and Stator (Screw Pumps)
Rotor Stator Pump FAQs
1. What are rotor stator pumps, and how do they work?
Rotor Stator pumps are progressive cavity pumps - a type of positive displacement pump. They can be used for pumping various viscous and abrasive fluids.
The fixed stator and the rotating component, the rotor, are the yin and yang of progressive cavity pumps. The rotor is the spiral steel shaft that creates conveying chambers of the inner outline of the rubber tube. Stators are metal tubes with internally molded cavities made of synthetic or natural rubber.
When the rotor is triggered, the conveying chambers move in the direction of flow. This is how the constant flow of material is achieved. The rotor takes a form which resembles a corkscrew, which, combined with the off-center rotary motion, gave its alternative name: eccentric screw pump.
We produced a short animated video to show you the inner workings of progressive cavity pumps:
2. What are rotor stator pumps used for?
Various industries use progressive cavity pumps. Putzparts is specialised in rotor stators for the construction and refractory industry to pump screed, mortar, grout, gypcrete, plaster and fireproofing cement.
Rotor stators also cater to wood processing and cellulose production, the chemical industry, the petroleum industry, domestic and industrial sewage, and low flow, high head, and agricultural water pumping.
3. What are the relevant factors when choosing the rotor stator?
Size, diameter, grain of the material, and the flow rate you want to achieve.
You will want to choose your rotor stator based on its size and diameter, depending on the grain of your material and your desired flow rate. Different rotor stator pumps suit different materials and purposes and achieves different pumping results. Different flow rates and pressure stabilities are achieved by varying designs of screw pumps.
4. Maintenance-free or clampable rotor stators?
Maintenance-free stators are more user-friendly. They can be used directly after being installed in the machine. They have unslotted steel tubes as outer casings. This means they allow for constant delivery pressure and support a hassle-free process.
Clampable stators are clamped according to material and grain size. They come in two types: stators with built-in tensioning clamps and slotted stators that are provided with an external tensioning strip.
Both transport diverse materials smoothly, continuously and with minimum pulsation. Pumps which require clamping have an integrated clamping bar or a grooved stator for the clamp, with or without an additional separate clamp. When the delivery pressure drops, the stators must be retightened.
5. How to choose the right shore for your rotor stator?
The shore is very significant: the smaller the number of the shore, the softer the rubber. We recommend a soft rubber if you pump material with sharp aggregates, as they wear out less quickly.
A harder rubber generates more pressure.
When choosing your optimal shore, consider your working temperature and climate, as rubber softens in heat. Our customers in warmer climates prefer a stator with harder rubber. Similarly, customers in temperate regions alternate shores based on seasonal weather shifts.
6. Does Putzparts supply high-quality rotor stator pumps?
Putzparts rotor stators are made in Germany. Our high alloyed steel rotors are never hollow. We use precisely drilled, high-quality steel for long-lasting rotors.
Our stators use high-endurance rubber, which makes them long-lasting, reliable, and supportive of a solid, consistent pumping experience.
7. Can I use the pumps for different machines?
We provide Rotor Stator Pumps for various machines by Putzmeister, PFT, M-Tec, Uelzener, Turbosol, Mai, Utiform, Inotec, Imer, Brinkmann and many more. Many machines use the same rotor stator types.
For plaster, the most popular pump is the D6-3, which has a solid output of 30 litres per min at 400 rpm. If you need more, you can go with the D8-2, which has more output at 66 litres per minute than any other D-pump.
For floor-screed conveyors like the Putzmeister S5, we recommend the 2L6 or 2L88. These pumps come in different versions. You can opt for either maintenance-free or clampable stators to use an external clamp.
8. I can’t find the rotor stator I’m looking for. Can you supply different types?
Most likely, yes. We supply a robust selection of rotor stator pumps in our shop and additionally provide custom series of nearly any stator size at optimal costs for you.
If you can’t find what you’re looking for or need help choosing what’s best for you, don't hesitate to contact us.
We react promptly to customer queries and will provide the required facilities for your specific purpose.
Filters
N13-S Rotor Stator Set
The rotor stator set N13-S. Made in Germany. Technical information about the N13-S set Stator Diameter: 50 mm Stator Length: 210 mm Rubber Qua...
View full details4 N13 Rotor Stator Set
The rotor stator set 4 N13. Made in Germany. Technical information about the 4 N13 set Rotor Diameter: 51 mm Stator Length: 410 mm Rubber Qualit...
View full details2L3 Roza Rotor Stator Set (For m-tec m200)
The rotor stator set 2L3. It's also call Roza.This rotor stator is used with m-tec m200. Made in Germany. Technical information about the 2L3 set ...
View full detailsD6-2 Rotor Stator Set
The D6-2 is orange with a cylindrical Stator. The D6-2 Stator has the typical "D-Pump" diameter of 89mm, but it's only 200mm long. Made in Germany....
View full detailsD4-1/4 Rotor Stator Set
The rotor stator set D4-1/4. Two stator options: black with an integrated clamp or blue maintenance-free. Made in Germany. Technical information a...
View full detailsD4-1/2 Rotor Stator Set
The rotor stator set D4-1/2. Two stator options: grey with an integrated clamp or green maintenance-free. Made in Germany. Technical information ab...
View full detailsD4-1/1 Rotor Stator Set
The rotor stator set D4-1/1. Made in Germany. Technical information about the D4-1/1 set Stator Diameter: 89 mm Stator Length: 270 mm Rubber Q...
View full detailsD6-3 Rotor Stator Set
The rotor stator set D6-3. Made in Germany. Technical information about the D6-3 set Stator Diameter: 89 mm Stator Length: 270 mm Rubber Quality...
View full detailsD6-3 Rotor Stator Set "Drill"
The D6-3 Drill is the most common rotor stator pump on European construction sites. Plastering machines like the PFT G4 but also many others work v...
View full detailsD5-2.5 Rotor Stator Set
The rotor stator set D5-2.5 (D5-2,5). Made in Germany. Technical information about the D5-2.5 set Stator Diameter: 89 mm Stator Length: 270 mm ...
View full detailsD7-2.5 Rotor Stator Set
The rotor stator set D7-2.5. Made in Germany. Technical information about the D7-2.5 set Stator Diameter: 89 mm Stator Length: 270 mm Rubber Q...
View full detailsD5 Short Rotor Stator Set
The rotor stator set D5 Short. Made in Germany. Technical information about the D5 Short set Stator Diameter: 89 mm Stator Length: 270 mm Rubbe...
View full detailsD8-1.5 Rotor Stator Set
Also known as the D5 short with an integrated clamp. Made in Germany. Technical information about the D8-1.5 set Stator Diameter: 89 mm Stator L...
View full detailsD8-2 Rotor Stator Set
The rotor stator set D8-2. Application Fields of the D8-2: groove-grated, smooth-grated, and special renders. Made in Germany. Technical informatio...
View full detailsD5-2.5 ECO Rotor Stator Set
The rotor stator is a part of the D Pump family known as the D5-2.5 ECO not to be mistaken with the D5-2.5. Made in Germany. Technical information...
View full detailsD5 Long Rotor Stator Set
This is the long version of the Rotor Stator D-5. It can be used with any plastering machine with a D output but is especially popular with machine...
View full details1L6 Rotor Stator Set
The rotor stator set 1L6. Made in Germany. Technical information about the 1L6 set Stator Diameter: 101 mm Stator Length: 265 mm Rubber Quality...
View full details50/7 R Rotor Stator Set
The rotor stator set 50/7 R. Made in Germany. Technical information about the 50/7 R set Stator Diameter: 101.6 mm Stator Length: 535 mm Rubber ...
View full details3L7 Rotor Stator Set
The rotor stator set 3L7. Made in Germany. Technical information about the 3L7 set Stator Diameter: 101.6 mm Stator Length: 535 mm Rubber Qualit...
View full details2L6 Rotor Stator Set
The Rotor Stator Set 2L6 The 2L6 pump is a very popular rotor stator in the steel and refractory industry, as well as several construction applicat...
View full details2L88 Rotor Stator Set
The rotor stator 2L88 set. Also known as 2L6 Plus / 2L6+.The 2L88 rotor stator pump is for mixing pumps like the S5 or the SP11. Made in Germany. ...
View full details2L6 +++ Rotor Stator Set
The 2L6 +++ (Triple Plus) Rotor Stator Set. Made in Germany. Advantages of the 2L6 Triple Plus: higher output This pump has the same dimensio...
View full detailsMegastar Rotor Stator
The Megastar rotor stator pump is typically used for silos. Made in Germany. Technical information about the Megastar set Stator Diameter: 101 mm ...
View full detailsR8-3 Rotor Stator Set
The rotor stator R8-3 set. Made in Germany. Technical information about the R8-3 set Stator Diameter: 114.5 mm Stator Length: 545 mm Rubber Qua...
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info@putzparts24.de
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