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Contractors World 2011 Volume 2 Issue 7
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Construction News - site equipment

Designated DX-RT, the hammer has been designed as an attachment for mounting on road/rail hydraulic excavators with an operating weight of around 30 t and a hydraulic oil flow of 140 litres per minute.New hammer from BSP developed for rail infrastructure works

To meet the specific demands of the railway infrastructure, BSP International Foundations, (BSP), one of the world’s leading manufacturers of hydraulic piling hammers and related equipment, has developed a new impact hydraulic hammer. The hammer is specifically for use to drive steel piles to support electrification stanchions, gantries and other railway projects requiring foundation piling.

Designated DX-RT, the hammer has been designed as an attachment for mounting on road/rail hydraulic excavators with an operating weight of around 30 t and a hydraulic oil flow of 140 litres per minute. When mounted to the machine’s bucket linkage, the hammer can be quickly erected from a horizontal transport position to a vertical of 5° which allows it to cope with the cant of the rail lines. During piling, the hammer is guided or crowded in the vertical plane by the operator controlling the excavator’s boom and dipper arm attachment configuration.

Two models are available, the DX-RT 20 and the larger DX-RT 25, which offer ram weights of 1.5 t and 2.0 t. Maximum impact energy is 20 kNm and 25 kNm respectively while blow rate at rated energy for both models is 80 blows per minute.

One of the first units has been purchased by Terrawise Construction, a civil engineering company, the DX-RT is being used to drive piles on the new Manchester Metro rail line linking Oldham and Rochdale. This line is part of a $940 million network project that includes extensions to the east and south Manchester respectively. The new lines will cover nearly 32 km (20 miles) and include 26 stops and scheduled to open in early 2012.

One of the first units has been purchased by Terrawise Construction, a civil engineering company, the DX-RT is being used to drive piles on the new Manchester Metro rail line linking Oldham and Rochdale.Developed by contractors to fill a requirement

James Crossen, Terrawise Construction’s project director, says: “Piling in a rail environment has one major drawback – restricted access to the worksite. So to help overcome this problem, we have been carrying out extensive research over the last two years in the development of piling equipment to drive steel tubular piles focusing on piling hammers that can easily attach and interchange with commonly used road rail excavators. As the company was unable to source suitable impact hammers on the world market, we decided to commission the design of a purpose-built hammer ourselves.”

“We approached BSP to manufacture and develop the hammer to a specification devised by engineers from various sectors within the rail industry including designers, plant specialists, piling contractors and Network Rail. As a result, and following extensive trials and tests, the new hammer was delivered and commissioned last December and although it has been working on various projects around the country since then, its full potential has recently been realised on the Manchester Metro project.“

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BROCHURES

BSP DX-RT
BSP DX-RT Hammer

 

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Page updated: August 11, 2011

 

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