The 61K4 runs an extra heavy-duty mechanical suspension system rated for the most demanding construction and earthmoving conditions. It handles greater operator weight and harsher terrain than a standard heavy-duty suspension, keeping vibration and impact load away from the operator through the shift.

Manual weight adjustment from 80 to 170kg is the highest in the KAB machinery range. It covers a broader spread of operator sizes than any other KAB machinery seat, including heavier operators who cannot be safely accommodated on a lower-rated unit.

Five positions of lumbar adjustment let each operator dial in the back support that works for their size and preference. A direct fatigue reduction feature on machines where operators spend full shifts behind the controls.

200mm of fore and aft travel adjusts operator reach to the controls across the full weight range the 61K4 accommodates. Gets operators of different sizes into a proper working position without modifications to the machine.

50mm of cushion slide and tilt adjusts the seat pan angle and position independently of the suspension. It gives operators an additional layer of fine-tuning over their seated position that standard fore/aft adjustment alone does not provide.

Three restraint configurations are available: a lap seatbelt, a 3-point lap/diagonal belt, or a 4-point harness. The right choice depends on machine type, site requirements, and operator safety standards. The TRT seats team can advise on which option suits your application.