Mixer Truck Hydraulic Pump & Motor | Sauer SPV23, SPV22, MF22 | 5423, 6423, 4633 Series

Model Number

5433-203, 5421-396, 4633-226, PV23, MF22

Product Description

Sauer-Sundstrand Series 20 Hydraulic Pump & Motor for Concrete Mixer Trucks

Product Overview: The Sauer-Sundstrand Series 20 is the global industry standard for hydrostatic drive systems in concrete mixer trucks. This closed-circuit solution consists of SPV variable pumps and MF fixed motors, spanning from the versatile SPV22/MF22 to the high-capacity SPV23/MF23 configurations. Featured models such as the 5423-518, 6423, and 4633-226 are specifically engineered for 6m³ to 12m³ drums. The system provides exceptionally smooth bi-directional rotation and speed modulation under high pressure, ensuring concrete consistency during transit.

Key Technical Advantages:

  • Proven Closed-Loop Architecture: Offers higher efficiency and a more compact footprint than open-circuit systems. Its inherent hydrostatic braking capability enhances the safety of drum operations.

  • Heavy-Duty Reliability: Known for its legendary durability. The 4633, 5423, and 6433 series are designed to withstand the harshest construction environments characterized by high heat and pervasive dust.

  • Precision Control Response:

    • 5421-396 / 5433-203: Equipped with sophisticated manual or hydraulic servo controls, allowing operators to adjust drum speed and direction with minimal effort.

  • Optimized Charge Systems: Integrated high-performance charge pumps ensure the closed-circuit remains pressurized and cooled even during rapid directional shifts or steep-grade hauling.

  • Ease of Global Maintenance: With an extensive global footprint, genuine or high-quality aftermarket parts for Series 20 (seals, pistons, cylinders) are readily available, minimizing fleet downtime.

Detailed Models & Parameters:

  • Core Series: Sauer Series 20 (PV/MF).

  • Variable Pump Models: SPV22, SPV23, 5421-396, 5423-518, 5433-203.

  • Fixed Motor Models: MF22, 6423, 6433, 4633-226.

  • Max Operating Pressure: Up to 420 Bar (42 MPa) continuous.

  • Drum Compatibility: 6m³, 8m³, 9m³, 10m³, 12m³ Concrete Mixers.

Company Profile

We adhere to international quality management standards and provide a 1-year warranty including maintenance and replacement. We have established long-term strategic cooperation with many well-known brands and continuously launch new products to meet market development. Flexible payment terms are supported, including USD settlement, Alipay, Western Union and T/T.
 
Relying on our standardized production base and professional foreign trade team, we provide competitive factory direct prices, efficient logistics channels and punctual delivery. FJZY Hydraulic is devoted to being your trustworthy long-term partner in hydraulic and agricultural machinery fields.
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Our Advantages

Fast & Reliable Delivery

We optimize global logistics channels to ensure every customer receives their goods on time, anywhere in the world.

Extensive Partnerships

We collaborate with numerous factories, offering a wide range of product selections and providing you with instant quote responses

Strict Quality Assurance

Quality first is our principle. We provide a one-year warranty service, ensuring you receive top-tier quality products with confidence.

Competitive Pricing

Through efficient production and close cooperation, we offer highly competitive prices, guaranteeing a cost-effective experience for you.
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