Rolling Stock Crane

The DL 18C-750 is built in two sections: a cab housing the engine bay and running gear, and a second section carrying the crane equipment itself, operated from the cab. The cab includes full controls, monitoring, and an LCD display; the crane section has lighting and a camera monitoring system.

Power comes from a water-cooled, three-cylinder DEUTZ engine, flexibly mounted in the locomotive frame with a two-stage exhaust cleaning system (catalytic converter plus liquid scrubber tank). Torque reaches the wheels through a hydrostatic drive — a hydraulic pump connected to the engine via a flexible coupling, driving a hydraulic motor on the axle gearbox — giving continuously variable, reversible speed control from 0 to 18 km/h under load in either direction.

The chassis runs on three axles, with the second and third linked by a cardan shaft; wheels are fitted with replaceable rims and mounted in roller bearings. Spring suspension uses rubber-metal blocks at each wheel, independently sprung in every direction. Braking runs on two fully independent systems on both axles: a hydraulic brake through the hydrostatic drive, and a mechanical, dual-circuit brake acting directly on the wheel tread via spring force and lever mechanism, controlled by a proportional servo valve with manually adjustable maximum force. In an emergency, the parking brake can be released manually to allow towing.

An automatic shutdown system stops the engine (via intake throttle and fuel cutoff) if hydraulic system pressure drops below 1.0 MPa, engine oil pressure drops below 0.11 MPa, engine temperature exceeds 115°C, or the driver presses STOP — and reduces the engine to idle if coolant temperature exceeds 105°C, hydraulic oil temperature exceeds 85°C, the intake filter clogs, or coolant level drops.

Crane arm and winch. The boom is a box-section single-telescope arm on a slewing turntable with hydraulic rotation drive, with the winch mounted at the rear. Winch pulling capacity ranges from 3.0–4.0 t (minimum) up to 4.0–8.0 t (maximum), and the boom delivers up to 9.0 t on the hook at maximum extension. Transport height is 1,600 mm; working height reaches 4.9 m.

Stabilization. Four hydraulic outrigger legs ground the machine during crane operation. If any leg loses ground contact, the system automatically locks out crane function — only the telescope adjustment needed to restore ground contact remains active.

Onboard equipment. A hydraulically driven compressor (0.4 m³/min at 10 bar) and a hydraulically driven welding set (continuous duty 40%/400 A, with 230 V/4.0 kVA and 400 V/10.0 kVA sockets, plus protective equipment and electrodes) are built in — field repairs and fabrication work without a second vehicle.

Cab. Robust construction with a forward-facing, cushioned, sprung seat with adjustable suspension, antistatic upholstery, and seatbelt. A protective mesh screen for the windscreen is available on request. Full lighting (main beam, dipped, and rear red) plus an acoustic alarm are standard, alongside a sanding system operable from either cab, in both directions of travel.

Fire suppression. A centralized CO₂ system, triggered from the driver's cab, protects the main fuel valve, injection pump, and intake system, backed by a manual extinguisher under the seat.

This configuration is built to a 750 mm gauge and 18 t operating weight as a reference model — talk to us about adapting gauge, dimensions, and lifting capacity to your site and rolling stock.