For Immediate Release

August 31, 2005

Model 1015 Digs Deep Foundations in South Korea

The first Manitowoc Model 1015 foundation crane in South Korea.

The first Manitowoc Model 1015 foundation crane in South Korea has been assigned a particularly challenging task; excavating 50 m (164 ft) deep foundations for a high-rise construction project on land reclaimed from the sea.

The Model 1015 has easily adapted to this duty-cycle application thanks to having 30 t (33 USt) of continuous line pull at all rope layers on the drum.  A unique performance feature of the Model 1015 is that each winch has two hydraulic motors powering it and the option to divert the pump flow to one winch at a time for faster line speeds. This design provides a more elastic winch power curve in the form of higher combinations of line pull and line speed. Winch performance is crucial in foundation and duty-cycle work, and the Model 1015 achieves higher production rates under demanding conditions.

The machine was delivered in June 2005 to Busan-based foundation contractor, Daewang E&C Co Ltd. It is the first of two units purchased by the company and was immediately put to work at the busy No 1 World Commercial & Residential Building construction project near the city of Incheon, on South Korea’s northwestern coast. The crane is installing the foundations for a 64-story apartment building, as part of the New Songdo City development. Foundation work began in July this year and will finish in October.

Because the project site is reclaimed land, the earth is significantly softer and the foundations need to be excavated down to the bedrock. Daewang has been contracted to place 304 foundations on the project, averaging two to three per day. The piles need to be 3 m (10 ft) in diameter, so the Model 1015 has been fitted with a locally supplied casing oscillator attached to the undercarriage. Excavation within the casings is performed using a single rope hammer grab suspended from the boom. The total weight of the grab, when fully loaded, does not exceed 15 t (16.5 USt) but it needs to be hoisted quickly from deep inside the shaft, which is where the Model 1015’s extra winch power becomes a key differentiator. Although the crane is capable of supplying hydraulic power to external attachments, the customer chose to drive the oscillator with an auxiliary power pack for this application in order to have full power at the winches.

With a 447 kW (600 hp) engine and a 30 t (33 USt) continuous line pull, the Model 1015 is ideal for a range of duty-cycle applications. It has a lift rating of 120 t (132 USt) with heavy duty angle boom making it perfect for trenching, piling, compaction, and other duty-cycle applications.

About The Manitowoc Company
The Manitowoc Company, Inc. is one of the world's largest providers of lifting equipment for the global construction industry, including lattice-boom cranes,tower cranes, mobile telescopic cranes, and boom trucks. As a leading manufacturer of ice-cube machines, ice/beverage dispensers, and commercial refrigeration equipment, the company offers the broadest line of cold-focused equipment for the foodservice industry. In addition, the company is a leading provider of shipbuilding, ship repair, and conversion services for government, military, and commercial customers throughout the U.S. maritime industry.

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