Gulf Construction Online - Terex’s crusher makes strong impression

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The new X400 crushing plant has been designed for primary crushing.

Terex’s crusher makes strong impression

01 April 2006

Terex Pegson, a leading UK-based manufacturer of tracked crushing plants, has launched the X400 crushing plant, which is intended to replace the company’s 1100 by 650 Premiertrak, currently claimed to be the world’s best-selling tracked crusher.

“The Terex Pegson X400 tracked crushing plant – a culmination of detailed research and extensive field trials with a series of eight pre-production prototypes – is now being introduced into the larger European markets, to be followed later this year with a launch in all other global markets. This new model is a track-mounted jaw crusher unit with universal appeal and capable of outstanding productivity, “ says Judi Sault, company spokesperson for Terex Pegson.
According to Sault, this plant has been designed to provide unsurpassed levels of uptime with the customer’s needs at the forefront of the design process and includes the following features
• Unrivalled under engine access with hydraulically tilting product conveyor;
• Very low running costs due to the highly efficient direct drive system;
• Hydraulic overload protection system on the XR400 version;
• Easy operation; and
• Maximum productivity.
Available in both hydraulic adjust (XA400) and hydraulic release (XR400) versions, the new X400 series is designed and built for primary crushing.
“These versatile crushers are equally productive and include features that are ideal for both quarrying and recycling applications,” she says.
“The XA400 has a highly aggressive crushing action with hydraulic crusher setting adjustment. The high-swing jaw eases material entry into the crushing chamber and the hydraulic adjustment has been developed to enable crusher-setting changes to be made quickly and easily over a wide range. The adjustment is activated without the need to release the drawback mechanism and this system is particularly suitable for applications where regular jaw setting adjustments are required,” explains Sault.

Hydraulic release
She continues: “The XR400 with hydraulic release has been specifically designed to alleviate problems associated with crusher overload which can be encountered when tramp metal enters the crushing process – particularly prevalent in the recycling of construction and demolition waste. The hydraulic release feature is fully adjustable, quick and easy to reset and makes blockage clearance a simple process. This saves time and money by allowing the crusher to continue processing with minimal disruption to the task while, at the same time, protecting the jaw mechanism from potential damage.
There are numerous innovative features on the X400 series to improve productivity and enhance maintenance procedures such as the following:
• The feed hopper is constructed from 15-mm heavy-duty Hardox for prolonged active life and is hydraulically folding with boltless fixing;
• A newly-designed and improved crusher drive access system;
• Easy-access power pack canopy;
• Hydraulic and oil filter changes are only required at 2,000 hours intervals;
• Excellent under-crusher accessibility for the safe and easy removal of wire with a hydraulic-tilting conveyor system; and
• The strong I-beam construction of the chassis is designed and built to withstand even the most arduous of conditions and the low ground pressure crawler track is site proven for the toughest of terrains.”
Driven by a Caterpillar 172 kW C9 engine, the new X400 series is PLC (programmable logic controller)-controlled for optimum performance with fingertip actuation and simple, automatic start sequence.
“The highly efficient HFO direct-drive system engineered into the plant gives remarkably low fuel consumption figures – as little as 22 litres per hour, depending on the application. In the days of increasing fuel and hydraulic oil prices savings of over £21,000 ($36,588.23) per annum in running costs are easily achievable against similar-sized competitors’ products. A new style of vibrating grizzly feeder, with an extended twin cartridge grizzly section, actively discourages pegging and blinding,” adds Sault.
An improved impact area under the product conveyor, at the crushing discharge point, has been introduced and the hydraulically elevating and lowering product conveyor itself has an increased discharged height (3.9 m) for even better stockpiling and, for transport, this can quickly be lowered to reduce the overall height dimension of the plant.
The numerous options on the X400 series include dirt conveyor with a new toughing system, over band magnet, radio remote control and under feeder screen. For additional belt protection on recycling applications, Terex Pegson can also offer an optional under crusher flipper plate,” she concludes.