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  1. Hydraulics / Electronics and Electrical

Amplifier Modules

Our amplifier modules allow operators to build adaptable and responsive hydraulic systems that extract maximum productivity for their application.

This amplifier range from Bosch Rexroth covers the complete range of direct operated proportional pressure valves, direct operated proportional directional valves, pilot operated proportional directional valves and proportional pressure reducing valves.


The Drive and Control specialists


Since its beginnings in 1795, Bosch Rexroth has provided high-performance, high-quality engineered drive and control solutions for arrange of industries including mobile applications, factory automation and machinery applications and engineering.

Bosch Rexroth solutions are distributed in sub-Saharan Africa by the Bosch Rexroth South Africa Group of Companies. In 2018, the Hytec Group became an official Bosch Rexroth company. This enables the Group to expand its operation through increased access to the innovation, technologies and technical support of Bosch Rexroth, while increasing Bosch Rexroth's footprint in Africa.

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Find out more about our Amplifier Modules

Amplifier Module applications:


Amplifier Module

Amplifier module for explosion-proof proportional pressure valve


The analog amplifier from Bosch Rexroth has been designed to control pressure valves without any electric return. The modular design allows for simple top hat rail assembly as is usual in control cabinets.

Amplifier module for explosion-proof proportional directional valves


The amplifier module has been engineered by Bosch Rexroth for controlling the explosion-proof proportional directional valves..


Analogue Amplifiers

Types VT 11004, VT 11015 & VT-11026


Bosch Rexroth analogue amplifier modules, Types VT 11004, VT 11015 and VT-Module for servo-valves without electrical position feedback. These amplifier modules are easily assembled.

Types VT 11131 and VT 11132


Bosch Rexroth analogue amplifier modules, Types VT 11004, VT 11015 and VT-Module for servo-valves without electrical position feedback. These amplifier modules are easily assembled.

Types VT-MSPA1- 1to11


Bosch Rexroth has developed the analogue amplifier modules, Types VT-MSPA1-1, VT-MSPA1-10, VT-MSPA1-Analogue Amplifier Modules for servo-valves without electrical position feedback. These amplifier modules are easily assembled.

Type VT-MSPA1-50


Bosch Rexroth has developed the Type VT-MSPA1-50 analogue amplifier module for servo-valves without electrical position feedback. The amplifier module is easily assembled onto hat rails.

Type VT-MSRA1-1-1X


Bosch Rexroth has developed the Type VT-MSRA1-1-1X analogue amplifier module for servo-valves without electrical position feedback. The amplifier module is easily assembled onto a hat rails.

Type VT 11021


Bosch Rexroth has developed this analogue amplifier module that is suitable for controlling servo-valves with mechanical feedback (Type 4WS2E sizes 6 and 10).

Type VT-MRMA1-1


Bosch Rexroth has developed the Type VT-MRMA1-1 analogue amplifier module for servo-valves without electrical position feedback. The amplifier module is easily assembled onto a hat rails.

Type VT-MSPA2-1


Bosch Rexroth has developed the Type VT-MSPA2-1 analogue amplifier module for servo-valves without electrical position feedback. The amplifier module is easily assembled onto a hat rails.


Electrical amplifier module

Electrical amplifiers for flow control of a variable displacement axial piston pump


Bosch Rexroth’s electrical amplifier module for the flow control of a variable displacement axial piston pump with electrical position feedback, Type VT 11019 enables high performance over long periods of times. This amplifier module is easily assembled.

The VT 11 019 amplifier module is used for controlling the flow of a variable displacement axial piston pump with electrical position feedback and FE control (type A10VSO…FE).

Electrical amplifier module for controlling proportional throttle valves


Bosch Rexroth’s electrical amplifier module for controlling proportional throttle valves with electrical position feedback, Type VT 11037 enables high performance over long periods of times. This amplifier module is easily assembled.

VT 11037 amplifier modules are used for controlling pilot operated proportional throttle valves with electrical position feedback (type FES 25 C).

Electrical amplifiers for actuating proportional and on-off valves VT 11550 to VT 11552


Bosch Rexroth’s electrical amplifier modules for actuating proportional and on/off valves, Type VT 11550 to VT 11552 enables high performance over long periods of times. These amplifier modules are easily assembled.

The VT 11550 and VT 11552 amplifier modules are suitable for actuating two proportional solenoids as well as two switching solenoids.

Electrical amplifiers for pilot operated proportional directional valves.


Bosch Rexroth’s electrical amplifier modules for controlling pilot operated proportional directional valves with electrical feedback, Type VT 11076 to VT 11079 enables high performance over long periods of times. These amplifier modules are easily assembled.

Electrical amplifier modules VT 11 076 to VT 11 079 are used for controlling pilot operated proportional directional valves with electrical position feedback (type 4WRK).

Electrical amplifiers for actuating proportional valves, Type VT 11550


Bosch Rexroth’s electrical amplifier modules for actuating proportional and on/off valves, Type VT 11550…/V001 enables high performance over long periods of times. These amplifier modules are easily assembled.
The amplifier module VT 11550-2X/V001 is used for controlling two proportional solenoids of the valve type MHDRE06SK as well as two switching solenoids.


Plug Amplifier

Type VT-SSPA1-5


Bosch Rexroth’s Plug amplifier module for proportional valves, Type VT-SSPA1-5 enables high performance over long periods of times. This amplifier modules is easily assembled.
Analog amplifier for actuating proportional valves (pressure and directional control valves) without position control.

Types VT-SSPA1-1, VT-SSPA1-50


Bosch Rexroth’s Plug-in proportional amplifier, Types VT-SSPA1-1, VT-SSPA1-50 for long-lasting amplifier performance. These amplifier modules are easily assembled.

Type VT-SSPA1-1, VT-SSPA1-5, VT-SSPA1-50, VT-SSPA1-100, VT-SSPA1-150


Bosch Rexroth’s plug-in proportional amplifier, Type VT-SSPA1-1, VT-SSPA1-5, VT-SSPA1-50, VT-SSPA1-100, VT-SSPA1-150 for long-lasting amplifier performance. These amplifier modules are easily assembled.

View the PDFs below for detailed specifications.
Amplifier Modules