Link-Belt unveils rugged LS-308H II for severe duty applications
LAS VEGAS (March 2002) — Link-Belt Construction Equipment Co. unveiled the new LS-308H II 110-ton (99.97 mt) lattice boom crawler crane at CONEXPO-CONAGG exhibit in Las Vegas. Designed specifically for a variety of duty cycle applications, the standard LS-308H II is equipped to perform lift applications, pile driving, dragline, clamshell, duty cycle, and demolition.
An innovative power plant provides maximum power
The machine’s power plant, hoist package and high-capacity hydraulic oil cooling system is what enables the LS-308H II to deliver day after day of full load performance. The 332 hp. (248 kW) Mitsubishi engine provides impressive line speeds under heavy load conditions. The total horsepower control allows the hydraulics to work at maximum speed and pressures during heavy load applications, which gives the operator maximum production.
The LS-308H II front and rear drums are outfitted with 1.125” (28.6 mm) wire rope providing 37,100 lbs. (16 828 kg) of allowable line pull and 55,000 lbs. (24 948 kg) of available line pull. The large hoist drums are easily accessible for routine maintenance. The big drum brakes are also easy to maintain and can be adjusted to the operator's preference. The drums are designed with simple, reliable and low-cost “band” brakes.
Another innovation that enables the LS-308H II to out perform the competition can be found in its hydraulic fan-driven, remote mounted, hydraulic oil cooler with thermostatic control ensuring cool running hydraulic oil and components in severe duty applications.
An optional auxiliary hydraulic power package provides additional hydraulic supply for various attachments, such as hydraulic hammers, buckets, grapples, shears, and generators.
Pump cavitation and contamination, a common occurrence with hydraulic vibratory and impact hammers, is eliminated with this system, as it is 100-percent separate from the main hydraulics. This includes high flow, high p.s.i. piston pumps, adjustable flow control valves, boom foot mounted hydraulic manifold, separate remote cooler, separate reservoir with double filtration. Also provided are two additional auxiliary circuit spotters and clamp.
Two optional drums are available. A front-mounted third drum, as well as an optional high-capacity fourth drum with true free-fall is equipped with 7/8” (22.2 cm) wire rope.
Robust and versatile attachment options
The crane is equipped with 50’ – 160’ (15.24 – 48.77 m) of 60” by 54” (1.52 x 1.37 m) in-line, pin-connected robust angle boom outfitted with a quick-attach bridle system, wear blocks and heavy duty pendants built to withstand side loads associated with duty cycle operation. With the 75’ (22.86 m) tubular lattice boom jib yields a maximum tip height of 220’ (67.1 m). A five-foot, single sheave tip extension is also available.
As a duty cycle machine, the clamshell and dragline rating is 32,250 lbs. (14 628 kg) with 120’ (36.58 m) of boom. In addition to its outstanding lift crane capabilities, the boom top sections are outfitted with universal top section connecting lugs for auxiliary sheaves and pile driving adapter. All these features are designed to make it the most job-application flexible crane in your yard.
To make the LS-308H II even more versatile and productive, “blocked-over-end” capacities are available. The rated capacity limiter is equipped with load cells in the boom hoist dead-end. Optional dedicated spotter circuits for use with vibratory and impact hammers, augers and other attachments.
Quickly and easily disassembles and transports in four loads
Assembly, disassembly and transport of the LS-308H II is quick and easy because lifting sheaves are mounted in the base section. Quick track disconnects can attach in minutes without the need for tools. The 50,496 lbs. (22 905 kg) counterweight is a seven-piece design consisting of one base counterweight and six wing counterweights allowing greater load out flexibility. The crane lower is equipped with fast hydraulic jacks for easy track removal and loading. Standard left, right and front catwalks are easily remove and store for transport. The complete machine loads out in four loads.
Job proven lower
The crane’s lower is designed with 36” (0.9 m) self-cleaning track shoes, sealed track rollers, idler and drive planetaries and compact hydrostatic drives for maintenance free operation. The tracks are designed with automatic hydraulic track tension and side frame extension/retraction. The overall length is 20’ 11” (6.37 m) and width is 17’ 6” (5.33 m).
New HYLAB cab with user-friendly features
The LS-308H II’s cab features a full complement of “operator-friendly” gauges and controls, such as backlit gauges, adjustable armrest-mounted, single-axis controls, “Twist-o-grip” swing and throttle controls, low-effort hydraulic brake pedals with minimal pedal range of motion, optional fourth drum pedal and optional variable flow auxiliary hydraulic circuit control. Another “creature-comfort” feature is the environmental control unit with standard 18,650 BTU cab air conditioning and 19,000 BTU heater. The ergonomic design offers the operator several advantages, such as greater visibility, more room, easy to read and intelligently located controls and gauges, adjustable boom and load hoist controls and an six-way adjustable seat. Most importantly, the new cab is set up to be highly functional and very comfortable.