Short Description
Premium factory-direct aftermarket Bosch Rexroth A2FE Series Axial Piston Fixed Displacement Plug-In Pumps / Motors (Complete Assemblies), precision-engineered as 100% plug-and-play interchangeable components for high-pressure industrial and mobile hydraulic drive machinery. Featuring Rexroth’s signature 40° bent-axis design with tapered pistons, our high-efficiency A2FE (Sizes 28 to 250) complete assemblies integrate flawlessly into mechanical track drives and travel gearboxes. Every single unit is fully validated to sustain continuous operating pressures up to 350 bar and peak intermittent shock loads up to 400 bar in excavators, drilling rigs, pavers, and heavy-duty winch drives.
Key Technical Highlights
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100% Plug-In OEM Envelope Alignment: Fully reverse-engineered strictly to original Bosch Rexroth A2FE micro-metric blueprints. The standard plug-in mounting flange, metric/SAE splined shafts, and specialized side-ported fluid paths line up flawlessly with your planetary gearbox housing—zero modification required.
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40° Spherical Bent-Axis Kinematics: Utilizing a high-efficiency spherical timing plate and tapered piston-ring layouts. This geometry optimizes volumetric efficiency, ensuring powerful starting torque and smooth output rotation even under extreme continuous 350 bar loading.
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Heavy-Duty Anti-Scoring Rotator Kits: Built with induction-hardened alloy steel tapered pistons paired with micro-lapped bimetal cylinder blocks. This premium clearancing prevents high-temperature micro-scoring during continuous bi-directional heavy-duty tracking or heavy winch braking loops.
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Modular Versatility (Pump & Motor Two-Way Application): Completely sealed casing layout allowing full dynamic readiness to operate either as a high-pressure fixed pump or a space-saving plug-in drive motor with identical thermal endurance.
| Frame Size & Displacement | Standard Working & Peak Pressure Rating | Primary Planetary Gearbox & Machine Applications |
|---|---|---|
| A2FE28 / A2FE32 / A2FE45 / A2FE56 / A2FE63 | Nominal Pressure: 350 Bar (5,100 PSI) Maximum Pressure: 400 Bar (5,800 PSI) |
Asphalt Pavers Drive Tracks, Compact Crawler Cranes, Mini-Excavator Travel Drives, Rotary Drilling Auxiliary Winches. |
| A2FE80 / A2FE90 / A2FE107 / A2FE125 / A2FE160 / A2FE180 / A2FE250 | Heavy Excavator Track Drives, Rotary Forging, High-Tonnage Crane Main Winches, Tunnel Boring Machine (TBM) Cutterhead Loops. |
Haozheng Hydraulic Production Processing Diagram
Haozheng Hydraulic Honorary Certificate
Exhibition
FAQ
Q1: Rexroth A2FE series utilizes very detailed code endings representing porting threads, seals, and shafts. How can you ensure your plug-in motor fits my specific planetary travel gearbox? A: For plug-in assemblies like the A2FE, a millimetric variance in the spline or flange step will prevent the unit from sealing inside the gearbox. The model alphanumeric string dictates vital parameters, including rotation, specific spline profiles (e.g., DIN 5480 splined shafts), high-pressure port positioning, and sealing compound configurations (e.g., A2FE107/61W-VZL192J). To ensure 100% plug-and-play field setup, our engineering division cross-checks either your original data nameplate code or your equipment OEM part number prior to dynamic boxing.
Q2: Planetary travel drives generate immense mechanical heat. How does your aftermarket A2FE assembly deal with continuous high-temperature bi-directional tracking? A: Thermal distortion inside a 350 bar bent-axis motor is the number one cause of cylinder lockup. At our manufacturing plant, we utilize high-density bimetal copper-alloy cladding fused onto the steel cylinder block faces, paired with premium structural pistons. Every complete assembly is subjected to rigorous dynamic bi-directional load sequencing on our heavy test benches, ensuring the dynamic fluid clearancing handles rapid directional shifting without casing pressure blow-by.
