Bosch Rexroth directional and pressure control valves, actuators and cylinders provide the reliability, quality, ruggedness and precision needed to ensure safe, positive pneumatic control for clutches, brakes, transmissions and diesel engine governors for drawworks on drilling and service rigs and associated equipment. The leader in the industry from the beginning, our products are found world wide - wherever oil and gas is produced. Valves such as our H-Controlair®, A-Pilotair®, P Rotair®, and D-Pilotair® withstand the harsh conditions and are considered the industry standard.
From the primary controls of the driller's console, to the pneumatic actuation of rotary tables, from sandline drums to winches and fracturing pumps - we have the pneumatic controls to fit the bill. Some of the typical functions that utilize our controls are:

Engine Speed:
- Hand and foot control,
- Front and rear station control and station interlocks

Transmission:
- Powershift and automatics
- Cab and operator console stations: for primary drum and vehicle propulsion
Hi - Lo Drum Clutches

Master Clutch

Neutral Brake

Main Drum / Sandline Drum Clutches

Hydramatic Retarder ( engagement & modulation )
Rod & Tubing Tongs:
- Elevators
- Positioners
- Drives

Power Slips

PTO Clutches

Air Control of Hydraulic Components:
- Air piloted valving
- Modulating spool valves
- Variable Displacement Pumps
- Hydrastatic drive controls

As The Drive & Control Company Bosch Rexroth is the specialist for drive, control and linear motion solutions. For every technology and technology mix the company offers high-grade components, systems and a broad range of services, be it hydraulic, pneumatic, electric, electronic or mechanical for industry and factory automation, including mobile applications.

Mobile Well Servicing Equipment

Pneumatic controls are widely applied to various combinations of the following functions: 

• Remote locations