Bosch SB7 System AK control technology hydraulic valve DW/EW in SET

AK Regeltechnik

  • €429,00
    Unit price per 
Tax included. Shipping calculated at checkout.


Offered here are new double-acting replica control units for the Bosch SB7 system in a complete set for easy retrofitting to the tractor.

The set comes complete as shown in the pictures.
The valve fits a wide range of tractors and manufacturers and is compatible with all Bosch SB7 control units.
The valve can be switched between double-acting and single-acting.

It's a 5/4-way valve, like the original Bosch valves. It has lift, neutral, lower, and float positions.
The control unit can be switched between single-acting and double-acting using a grub screw on the back.
The control unit has a hydraulic limit switch on port A, which means that when the maximum pressure is reached, the control unit is unlocked and automatically returns to the neutral position. This corresponds to the function of the original SB7 control units.

Position A is locked.

The lowering position is not detented. If you continue to switch beyond the lowering position, the detented floating position is activated (consumer ports A and B are connected to the return line). The floating position can be used as a detented lowering position on both double-acting and single-acting lifting cylinders.

The control unit is simply integrated into the existing system using longer studs.
The control unit has working ports at the bottom (like the original) and at the top. The upper ports allow it to be installed even when space is limited to the steering knuckle.

It fits various tractors from the following manufacturers (list may be incomplete):
IHC; Deutz; Fendt; Eicher; Schlüter; MB Trac; Güldner; Kramer; Lindner; Steyr; Porsche;

You can find a suitable holder for the couplings here .

The hoses have a length of 800mm.


We Also Recommend