Terex Pegson's latest generation crusher on a major land recycling project on the Wirral

• 
• 11th April 2007
• Recycling
 

TEREX Pegson's latest product the new XR400 tracked jaw crusher is being used by by contractors, Technical Demolition Services of Birkenhead, to crush a series of concrete storage tanks on an old MOD fuel storage depot at Bromborough on the Wirral.

The project, which covers the demolition of several massive World War Two concrete encased underground fuel tanks, starts with the removal of all topsoil to gain access to the structures, which are then broken up and the steel tanks inside removed. The reinforced concrete is then crushed to produce a reusable product of the quality required for use as a sub-base.

Technical Demolition Services have in the past hired in all their crushing equipment and this is the first time they have purchased their own. The machine was supplied through Terex Pegson's main dealer, Blue Machinery plc, of Warrington.

Technical Demolition's Managing Director, Tony Taperell, commenting on the new machine, said, "We decided to purchase our own crusher to give us the operating flexibility this industry requires for on-site crushing, and we are pleased with it‘s overall performance on the contract".

With a company history spanning over 30 years, Technical Demolition Services specialise in civil engineering projects from initial demolition and site clearance, to full site remediation, including hard landscaping and earth works.

Once access is gained to the concrete structures they are broken down by impact hammers and the larger reinforcing bars removed from the concrete slabs. The concrete is then fed to the mobile crusher, where it is crushed to give a -75 mm product.

The model XR400 crusher incorporates many new design features, to give operators a cost effective machine, whilst also providing ease of operation and maximum productivity. The vibrating feeder has an extended twin cartridge grizzly section to aid material flow and actively discourage any pegging or blinding of the freely suspended bars. Any dirt or undersize in the feed can be taken out by a two way chute to a side conveyor, or alternatively the material by passes the crusher to give an all-in product.

This plant also features an under-screen beneath the feeder, which sizes the smaller material passing the grizzly bars and discharges, via a side conveyor to the side of the plant. The advantage being to reduce the wastage of good quality material on certain applications.

The powerful 1100 mm x 650 mm jaw crusher has a highly aggressive crushing action, which drives material down into the crushing chamber, increasing the throughput of the machine. An unrestricted feed opening allows large material sizes to be accepted with minimal pre-breaking.

Generous under crusher accessibility has been provided to allow any reinforcing bar to clear the crusher safely.

The XR400 is equipped with an hydraulic release mechanism which alleviates the problem of crusher overload, should any tramp metal enter the crushing chamber, a particular advantage when recycling unsorted construction and demolition waste.  The system operates to protect the jaw mechanism from potential damage and quickly clears machine blockages, thereby saving both time and money. It can be reset at the push of a button.

A fully skirted 1m wide conveyor discharges the product at a height of 3.9 m forward of the machine for stockpiling. The conveyor can be lowered hydraulically to reduce machine headroom when travelling. This excellent feature is particularly beneficial to the operator as it makes the removal of wire so much easier than on competitors plants.

To meet environmental regulations the machine incorporates water sprays located both above and below the crusher and at the conveyor head to keep any dust emissions to a minimum. An overband magnet mounted over the product conveyor takes out any metals in the product stream to the side of the plant for recycling.

Power is provided by a clean running tier 3 compliant 172 kW Caterpillar C9 diesel engine, and the machine is controlled by a state-of-the-art PLC with automatic sequence start-up and shut-down. One of the many benefits of this new X400 range of machines is the HFO direct drive system, which makes for substantial fuel savings against similar sized competitors' machines.

The tracked crusher, provides high manoeuvrability and fast site set-up. Hydraulic folding of the 8.5m³ feed hopper sides and end, aids easy movement by road, and with the machines compact design, and a weight of 46 tonnes, it is ideally suited to applications where it is moved regularly between contracts

Once the crushing is completed and the site cleared, it will be landscaped in preparation for further development. At the end of the contract, the Terex Pegson machine will have crushed in excess of 32,000 tonnes of demolition materials to 6F2 specifications. 

For further information please contact:
Judi Sault,
Marketing Manager,
TEREX Pegson Ltd,
Mammoth St,
Coalville,
Leicester
LE67 3GN. 

Tel. +44 (0) 1530 518658,
Fax. +44 (0) 1530 518664