The Hydrema DT22 HM combines articulated dump truck capability with a redesigned cab, updated controls and improved diagnostics. The new operator environment brings a 10-inch touchscreen, adjustable armrest controls and a wider cab together with practical improvements to traction, braking and tipping control.
THE CAB
The DT22 HM’s redesigned ROPS/FOPS-approved cab is 200 mm wider at the rear, with a wider entry door and an opening right-hand window. The air-suspended, ventilated driver’s seat includes longitudinal damping, while a ROPS-approved passenger seat provides space for a second person.
A 10-inch touchscreen displays machine information, diagnostics and the rear camera view. The adjustable armrest brings the joystick, keypads, start/stop and parking brake controls within reach. Backlit keypads dim automatically.
The updated climate system distributes air through 12 outlets at roof, front and floor level. DAB radio with Bluetooth hands-free connectivity and central locking with a key fob complete the operator environment.
SAFETY
The DT22 HM combines a ROPS/FOPS-approved cab with a rear camera view on the 10-inch touchscreen. Sixteen LED work lights and three configurable lighting presets help the operator adapt illumination to the task.
The dual-circuit braking system uses two independent, parallel brake pistons, with oil-immersed disc brakes on all six wheels. A brake indicator warns when the brakes are at risk of overheating, and an emergency stop function brings the machine to a controlled stop.
Hill holding helps prevent movement in the wrong direction when the tipping brake is released.
TIPPING — PREVIOUS-GENERATION 922G PICTURED
A dump body angle sensor supports tipping monitoring and an electronic height limit. The operator can set a lift limit to suit the working area.
The Hardox 450 steel body uses double-acting tipping cylinders positioned beneath it for protection. The specified tipping angle is 70°, with tipping times of 7.5 seconds up and 5.5 seconds down.
An exhaust-heated body and hydraulically operated tailgate are available as options.
RETARDER
The DT22 HM combines an engine brake with a proportional hydraulic retarder, providing a maximum combined retarder output of 230 kW (312 hp).
Retarder control is integrated into the first 50% of brake pedal travel, allowing the operator to adjust braking progressively through the pedal.
SERVICE
Machine diagnostics, sensor information and input/output status are available on the 10-inch touchscreen. Electronics are grouped on the right-hand side of the cab with external service access, while fuses and relays can be reached from inside the cab.
Two 95 Ah starting batteries are supported by a separate 25 Ah standby battery for sleep-mode functions, including central locking, the clock and telematics. Fuel-level monitoring remains active during sleep mode to help detect fuel theft.
The 36.5-litre AdBlue tank is positioned alongside the frame.
TRACTION
Wheel-speed sensors on the front axle and rear bogie support the DT22 HM’s updated traction system. Semi-automatic axle differential lock engagement helps the operator manage traction as ground conditions change, while manual engagement of all differential locks remains available.
The suspended front axle has individual level control on each side. Longer stabiliser cylinders increase steering force.
THE HM VARIANT
The DT22 HM is the wide variant in the DT22 Series, combining a 20,000 kg payload with 800/45-30.5 tyres. In this configuration, the specified width over tyres is 3,180 mm and ground pressure at full load is 98 kPa.
These figures apply to the stated HM tyre configuration. Other models in the DT22 Series have their own dimensions, payloads and tyre specifications.
Look around the DT22 HM cab from the operator’s seat. Drag to turn the view and zoom in on the controls, displays and the view through the glass.
