2L8 Rotor Stator Set
Description
2L8 Rotor Stator Set (Cobra 2) – Heavy-Duty Concrete Pump for Maximum Throughput
The 2L8 rotor stator set, also known as the Cobra 2, is the largest and most powerful screw pump in our range. Designed for demanding heavy-duty applications, the 2L8 is specifically engineered for pumping concrete, mortar, screed, and abrasive construction materials with extremely high throughput requirements.
With its massive conveying capacity, robust construction, and adjustable clamping system, the 2L8 is the preferred choice for professional concrete and mixing pump systems on large construction projects.
Made in Germany – engineered for maximum durability, precision, and continuous heavy-duty operation.
Compatible Machine Types
The 2L8 pump is compatible with:
- Putzmeister SP 20 DHF
- Putzmeister SP25
- PFT ZP3 XXL
- Brinkmann FHS250
- Brinkmann FHS200
- Transmix systems and many other brands and models
Key Features
- Extremely high conveying capacity up to 560 l/min
- Designed for concrete and heavy-duty mortar applications
- Suitable for materials with up to 16 mm grain size
- Integrated clamp stator for adjustable pressure control
- Available as standard white stator or 2L8 Long Life orange stator
- Rotor available with square drill-hole head or hexagonal design
- High wear-resistant high-alloy tool steel rotor
- Engineered for continuous industrial operation
Advanced Performance Technology
Pressure Stability
Rubber deformation increases wear and reduces chamber pressure, which can lead to material backflow inside the stator.
The 2L8 stator is engineered for stable pressure conditions and reliable conveying performance even under extremely high load and with abrasive materials.
Optimized Operating Temperature
Friction generates heat that negatively affects stator rubber. The optimized rubber compound and precision stator geometry improve heat dissipation and reduce operating temperature during continuous operation.
Uneven rubber wall thickness can reduce heat transfer efficiency and accelerate wear — therefore, precision manufacturing is essential for maximum service life.
Adjustable Tension System
The integrated clamp system allows manual tension adjustment using screws.
This enables professional operators to:
- Fine-tune pump pressure for specific materials
- Adjust conveying performance to job site requirements
- Extend stator service life through controlled re-tensioning
Applications
The 2L8 is suitable for:
- Masonry mortar
- Fire protection mortar
- Concrete repair mortar
- Flow screed (120 l/min)
- Site-mixed concrete and mortar applications
Technical Specifications
- Stator Diameter: 193 mm
- Stator Length: 655 mm
- Rubber Hardness: 63 Shore
-
Flow Rate:
- 560 l/min at 400 RPM
- 280 l/min at 200 RPM
- Maximum Grain Size: 16 mm
- Rotor Material: High-alloy tool steel
-
Rotor Head Design:
- Square with drill hole
- Hexagonal
- Stator Design: Integrated clamp
- Stator Colors: White or orange (2L8 Long Life)
Why Choose the 2L8 Rotor Stator?
- Maximum throughput for heavy-duty concrete applications
- Suitable for coarse materials up to 16 mm
- Adjustable pressure system for flexible operation
- Extremely durable design for continuous industrial use
- Available in multiple rotor and stator configurations
- Reliable performance in demanding construction environments
- Premium Made in Germany quality
Shipping Information
International shipping available. For products over 30kg, please Contact Us for a shipping fee quote. For more information, see our Shipping Policy and Refund Policy.
