Grove RT58B

The Grove RT58B is a compact, versatile 15-ton rough terrain crane designed for a variety of industrial and construction applications. Its three-section, full-power boom extends from 25 ft to 60 ft (7.6 m to 18.3 m), with an optional 20 ft (6.1 m) A-frame jib that offers offset angles of 0°, 15°, and 30°. This provides the crane with a maximum tip height of 98 ft (29.9 m), enabling it to handle a wide range of lifting tasks.

The boom is supported by a robust hydraulic system, which includes two double-acting hydraulic cylinders with integral holding valves, providing a boom elevation range from 0° to 75°. The Boom Nose features three steel sheaves mounted on heavy-duty tapered roller bearings, and the removable auxiliary boom nose includes a pin-type rope guard for added versatility during lifting operations.

Engine and Performance: The RT58B is powered by a Cummins 6BT5.9L six-cylinder, turbocharged diesel engine, generating 130 hp (97 kW) at 2,500 RPM and 386 ft-lbs (523 Nm) of torque at 1,400 RPM. This provides ample power for both lifting operations and travel. The crane’s transmission features six forward and three reverse speeds with a powershift system, ensuring smooth operation across various terrains. The crane’s top speed is 24 mph (38 km/h), making it efficient for movement across job sites.

Lifting and Hoisting: The crane’s hoist system includes a main and auxiliary hoist, both featuring power-up and down equal speed, grooved drums, and planetary reduction with an automatic brake. The hoist provides a maximum single-line pull of 9,640 lbs (4,372 kg) and a maximum line speed of 429 ft/min (131 m/min), ensuring efficient and fast lifting.

The Load Moment Indicator (LMI) and Anti-Two Block System provide advanced safety features, including audio-visual warnings and control lever lockout, ensuring safe lifting operations. The system offers real-time data on boom angle, length, tip height, and load moment, reducing the risk of overloading or improper lifting.

Hydraulic and Outrigger System: The hydraulic system operates at a maximum pressure of 2500 PSI (172 bar) and utilizes three main pumps with a combined flow of 112.5 GPM (426 LPM), providing smooth and precise operation for all crane functions, including the boom, hoist, and swing.

The crane is equipped with a cantilever arm outrigger system at all four corners, with integral check valves on each extension cylinder. The outriggers provide solid stability with a maximum pad load of 36,787 lbs (16,687 kg), and the controls are conveniently located in the cab for ease of use during set-up.

Cab and Operator Features: The operator’s cab is a full-vision, all-steel structure with tinted safety glass and a deluxe adjustable seat. It includes a dash-mounted control panel with gauges for engine functions, as well as controls for all crane operations. Standard features include sliding side doors, an electric windshield wiper, a circulating air fan, a dome light, and a fire extinguisher. The swing system offers 360° continuous rotation, with a maximum swing speed of 2.9 RPM, and includes automatic multi-disc swing brakes for secure and safe operation.

Chassis and Steering: The RT58B is built on a steel, all-welded box-type chassis with integral outrigger housings and tie-down lugs. The crane features 4×4 drive and 4-wheel steering, with fully hydraulic steering control for both front and rear axles. The crane’s oscillation lockouts provide additional stability when the boom is centered over the front.

In summary, the Grove RT58B is a reliable and durable rough terrain crane with a solid lifting capacity, advanced safety systems, and robust hydraulic performance. It is ideal for projects requiring a compact yet capable crane with excellent maneuverability.