CBST bidirectional gear pump

The Rotontek CBST Bidirectional Gear Pump is a compact, high-pressure pump known for its accuracy and consistency. With an innovative design featuring two aluminum bearing blocks, it ensures automatic compensation of axis clearance. The pump achieves forward and reverse operation through two one-way valves. Offering a choice of 10 standard models and a displacement range of 0.25-1.5cc/rev, it serves as an efficient solution for small and medium-sized hydraulic power units and EHA systems, boasting high mechanical and volumetric efficiency, minimal noise, and a low weight power ratio.



Welcome to a new era of technological excellence with Rotontek’s CBST Bidirectional Gear Pump – your partner in automation applications. This high-pressure, small displacement gear pump is setting industry standards through its remarkable features and functionality. Factory direct, this marvel of precision engineering offers many advantages that make it an investment worth every penny.

Key Features and Benefits

The CBST Bidirectional Gear Pump offers a comfortable and low noise operational experience, ensuring minimal disturbance and maximum performance. The high efficiency and automatic-compensation system make this pump a standout product, offering unparalleled efficiency and precision. Here’s a closer look at what makes this pump truly unique:

  • The pump is composed of two aluminum bearing blocks, a housing, a front cover, and a rear cover.
  • The automatic axis clearance compensation by the bearing blocks ensures an accurate operation.
  • The inclusion of two one-way valves in the cover allows for simultaneous forward and reverse operation.
  • The gear is processed by an automatic hobbing machine and a full-automatic grinder. Plus, the size is detected online for accuracy and consistency.
  • This pump boasts a high mechanical efficiency and volumetric efficiency.


Widely Applicable and Adaptable

This gem from Rotontek is a versatile tool that finds application in various areas. Small and medium-sized hydraulic power units and EHA systems benefit greatly from this gear pump. Choose from 10 standard models with a displacement range of 0.25-1.5cc/rev to meet your specific needs.


Premium Construction and Design

Rotontek’s commitment to quality is evident in every part of the CBST gear pump:

  • The aluminum alloy pump body and steel nail fixing ensure durability.
  • Bidirectional seal end caps provide a reliable seal, improving efficiency.
  • The precision gear guarantees optimal performance.


Performance Specification

Product Type: CBST

CBST Gear Pumps


  • CBST


  • Rated pressure:20Mpa(2900PSI)
    Rated speed:2800rpm
    Max speed:4000rpm


    • (cc/Rev)
      0.25 0.32
      0.38 0.50
      0.63 0.75
      0.88 1.00
      1.25 1.50


CBST shape of the drawings

Efficiency :

Displacement (cc/Rev)
0.63、0.75、0.88、 1.0、 1.25、1.5
Efficiency (%)


Precision Manufacturing for Unmatched Performance

The CBST Bidirectional Gear Pump is a product of precise and intelligent manufacturing. The gear pump processes by automatic gear hobbing machine and automatic grinding machine, providing high precision compensation and efficient operation. Furthermore, the pump offers comfortable and low noise operation, making it a reliable choice for all your hydraulic needs.

Experience the Rotontek Advantage through our standardized production process and guarantee of product quality. With personalized solutions that support customization and a refined service system, we deliver the best in hydraulic technology. Trust in Rotontek’s CBST Bidirectional Gear Pump to elevate your hydraulic operations to new heights.


Note: After model selection, we will provide corresponding product technical data for customer confirmation. The shape may vary slightly from the model selection drawing data.

Take your hydraulic operations to the next level with Rotontek, a trailblazer in advanced pump technology. Our leading product, the CBST Bidirectional Gear Pump, stands as a testament to our dedication to quality and innovation. However, our expertise doesn’t stop there. We offer a comprehensive range of products, each tailored to meet varying demands and applications.

The CBE Gear Pumps are a stellar addition to our product lineup. Designed to maintain high performance while ensuring low operational noise, these pumps provide the reliability you need in your hydraulic systems. Their efficient operation and durability make them a must-have for complex hydraulic processes.

Our CBKT Unidirectional Gear Pump is another high-pressure, small displacement pump that embodies the precision and attention to detail that define Rotontek. Offering automatic axis clearance compensation and low noise operation, the CBKT Unidirectional Gear Pump is a powerhouse of efficiency.

We also feature compact hydraulic power units such as the 109 A/C series. These units are the epitome of efficiency packed in a compact design, making them ideal for applications where space is a constraint without compromising on performance.

At Rotontek, we provide more than just products; we offer comprehensive hydraulic solutions. We understand the complexity of hydraulic operations, and we’re committed to providing products that meet your specific needs. Whether you need gear pumps or compact hydraulic power units, our diverse range ensures you’ll find the perfect fit for your hydraulic requirements.

Every product that leaves our production line is a result of our commitment to standardized production processes and quality assurance. Furthermore, we provide personalized solutions tailored to the unique requirements of our customers. Our commitment to customization and our refined service system set us apart in the industry.

Trust in Rotontek, and embrace a world of hydraulic solutions where quality and innovation coexist seamlessly!

Additional information




Rated pressure :20Mpa(2900PSI)
Rated speed:2800rpm
Max speed:4000rpm


0.25 0.32
0.38 0.50
0.63 0.75
0.88 1.00
1.25 1.50


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