Ronzio Group 2 Aluminium Gear Motor
The Ronzio Z2 is a compact, high-efficiency Group 2 gear motor built for reliable performance across mobile and industrial hydraulic applications. An extruded aluminium body keeps weight down, while cast iron covers and axial pressure-compensating bushing blocks deliver average volumetric efficiency of 95 to 97% at continuous pressures up to 300 bar.
Available in nine displacements from 4.4 to 31.4 cm³/rev, the Z2 is configurable for clockwise, anti-clockwise, or bi-directional rotation, with a wide choice of flanges, shaft types, port connections, and seal materials to suit your application.
Key Specifications
- Displacement range: 4.4 to 31.4 cm³/rev (nine sizes)
- Max continuous pressure (P1): 160 to 300 bar depending on model
- Max intermittent pressure (P2): 170 to 340 bar depending on model
- Max peak pressure (P3): 200 to 360 bar depending on model
- Volumetric efficiency: 95 to 97% average
- Operating temperature: -10°C to +80°C
- Oil viscosity: 20 to 120 mm²/s (cSt); max starting viscosity 700 mm²/s
- Hydraulic fluid: mineral oil to DIN 51524 (contact us for fire-resistant fluid options)
- Rotation: clockwise (D), anti-clockwise (S), or bi-directional with internal or external drain
- Shaft seal options: standard NBR or Viton; 5 bar and 25 bar reinforced seals available
- Flange standards: European, German, and American configurations
- Tandem configuration: compatible with Z2 and Z1 series units
