Hydraulic radial piston pump RKP-D

pistonelectro-hydraulicfor industrial applications

Overview
The radial piston pump with digital control (RKP-D) is an electro-hydraulic pump with a fieldbus interface. It is suitable for machine applications requiring high dynamics and reliability, for example injection molding and metal forming. The design combines robust mechanics with modern electronics: a servo-proportional pilot valve with on-board digital electronics for flow and pressure control and a powerful, flexible microprocessor controller for tuning and diagnostics.

Functions and advantages

• Servo-proportional pilot valve with digital electronics for precise regulation (flow, pressure) and high dynamic response
• Compatible with different PLC architectures via analog or digital control (CANopen)
• On-the-fly adjustment of pressure regulation parameters to optimize sequential processes with multiple actuators
• Optimized multi-pump arrangements in master–slave operation to combine pump stages into a common flow and improve pressure control
• Minimized downtime through simple and fast fault diagnosis via HMI or laptop with full access to internal parameters
• Compact design and fast commissioning due to integrated electronics

Specifications
Displacement (cm³/rev): 19, 32, 45, 63, 80, 140
Configuration: open-circuit pump with various control and regulation options
Mass (kg): 22 to 105
Moment of inertia (kg·cm²): 17.7 to 380
Ambient temperature range (°C): -15 to +60
Maximum speed at inlet pressure 1 bar abs. (min⁻¹): 2,100 to 2,900
Maximum operating pressure (bar) medium-pressure version (RKP 19, 32, 45, 63, 80 and 140): 280
Maximum operating pressure (bar) high-pressure version (RKP 19, 32, 63, 80, 140): 350

Technical characteristics

• Model series: RKP-D (radial piston pump with digital control)
• Displacement: 19 / 32 / 45 / 63 / 80 / 140 cm³/rev
• Configuration: open circuit, variable and controllable
• Weight: 22–105 kg
• Moment of inertia: 17.7–380 kg·cm²
• Operating temperature: -15 °C to +60 °C
• Max. speed (1 bar abs.): 2,100–2,900 min⁻¹
• Max. operating pressure medium-pressure version: 280 bar
• Max. operating pressure high-pressure version: 350 bar