Clyde Iron, a unit of AMCA International Corporation of Houston, has just released a new brochure on marine whirley cranes for offshore and other marine construction, dredging, and stevedoring applications.

The publication contains information on net hook capacities (full revolving or overstern), duty cycle gross loads, maximum operating radii, and engineering data covering models 20, 24, 28, and 32. Boom lengths range from 70 to 200 feet. When fitted with a 120-foot boom, the model 32 has an overstern lifting capacity of 290 short tons at an outreach of 40 feet.

One of Clyde's outstanding offshore crane installations in recent years is aboard the giant semisubmersible, pipelaying/derrick barge Semac I. Heavy lifts on the vessel are accommodated by a Clyde Model 42 Offshore Whirley with full electric drive, capable of lifting 500 tons overstern and 350 tons full revolving. Simple, rugged, and easy to maintain, that crane was customized and tailored to meet the huge barge's unique requirements.

Also installed aboard the Semac I are three Clyde CPS-96 Sea Whirlers™ with 75-ton main load blocks. Used for routine lifting, these full-revolving, fast-cycling, versatile pedestal cranes contribute greatly to the vessel's material-handling requirements.

Clyde's AD™ winch, engineered in graduated sizes with stall pull x bare drum ratings from 150,000 to 350,000 pounds, is offered in single or multiple drum arrangements for anchor/pulling applications. Features of the AD line include: anti-friction bearing design; alloy steel shafts, supported close to load centers; rigid, heavily braced framing and bearing housings; large-capacity steel drum; spring-loaded, air-released pawl; high-strength, multiple steel roller chain drive, splash oil bath lubricated; heavy-duty, single contracting band brake, air released; hand-operated air controls assembled in modular console within easy reach of the operator; and air compressor and receiver.

Clyde also offers a constant tension hydraulic tugger, the CTH Models, with running pull/bare drum ranging from 10,000 to 54,000 pounds. The CTH tugger hydraulic pump and motor combination can be driven by either a TEFC continuous rated squirrel cage electric motor or diesel engine.

For a free copy of the new Clyde brochure,

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