Grove TMS300

The Grove TMS300 is a highly mobile and durable hydraulic truck crane built for efficient performance in a variety of lifting applications. With a strong boom design, dependable swing system, and road-worthy carrier, this crane delivers reliable lifting power both on- and off-site.

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Product Description

The Grove TMS300 hydraulic truck crane is designed around a rugged 8×4 Grove carrier, delivering excellent roadability combined with lifting capability. Its three-section trapezoidal main boom ranges from 33 ft. to 112 ft. (10.1 m to 34.1 m) with full power sections, and features an integral holding valve on each of its 5½ in. (139.7 mm) telescopic cylinders. A swingaway lattice extension extends the boom tip height to 136 ft. (41.5 m), with a 32 ft. (9.7 m) “Swingaway” jib that can be further extended to 112 ft. (34.1 m) using inserts.

The crane is equipped with a Grove-designed boom hoist, which is rear-mounted and powered by a variable-displacement hydraulic motor and planetary reduction system. Its swing mechanism consists of a fixed-displacement hydraulic motor with an internal brake and planetary gear drive, delivering 2.6 RPM through a full 360° Glide Swing turntable. A load moment and anti-two block system (Krueger) with audio-visual alerts helps ensure safe lifting operations.

Mounted on a Grove-designed chassis, the TMS300 uses a Ross TE-70 cam and lever-type steering system and features a robust 8×4 axle configuration. The front (Rockwell FL-931) and rear (Rockwell SSHD) axles support capacities of 36,000 lbs. and 44,000 lbs. respectively. Suspension consists of Reyco 21B spring-mounted systems at the front and Hendrickson R440 solid-mounted tandem springs at the rear.

Hydraulic outriggers are double box-beam types with 18 ft. (5.5 m) full-span extensions and vertical cylinders for lifting and leveling. The hydraulic system supports simultaneous operation of up to four functions via double-acting, four-way control valves, with a system pressure limit of 2,550 PSI (176 kg/cm²).

The crane’s cab is full-vision, all-steel, and acoustically treated, offering full controls for swing, boom elevation, and throttle. Meanwhile, the carrier cab is equipped with full instrumentation including oil pressure, water temp, tachometer, voltmeter, and an optional air-conditioning system.

Counterweight consists of 9,500 lbs. (4,309 kg) mounted on the turntable with an additional 8,500 lbs. (3,856 kg) for the auxiliary hoist when needed.

This crane remains a popular choice for its excellent blend of on-road mobility, hydraulic boom performance, and ease of transport and setup—suitable for general construction, utility, and light industrial work.

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