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Success for Hazemag

Hazemag & EPR GmbH have supplied Tarmac with the latest GSK-type rotor as a replacement rotor for a Hazemag AP5Br impactor which has been operating for a number of years at the company’s Stancombe Quarry.

Built and delivered in just five months, the new-style rotor was installed under the supervision of a Hazemag engineer and has upgraded the impactor to handle limestone of up to 1,000mm at rates of up to 450 tonnes/h.

This is the second GSK-type rotor to be supplied to the UK, the first being supplied to Hanson’s Tytherington Quarry where it was also retro-fitted as a replacement rotor for a AP5Br impactor.

 

Since its launch, 13 orders for the GSK-type rotor have been secured, eight of which have been supplied as retro-fits to existing impactors employed on primary and secondary applications.

The GSK-type rotor combines the crushing qualities of the Hazemag S-type and K-type rotors. It is a welded cast design with mechanically clamped blow bars and has been designed to give a higher degree of blow-bar utilization. Quick and simple blow-bar turning/changing in both the axial and radial direction is possible with the provision of specially designed blow-bar changing devices.

In contrast to the K-type (open-disc) rotor, the new rotor can be used for primary crushing applications with no restrictions. An added benefit is that time-consuming cutting of bolts during blow-bar changing is not necessary.

Both Hanson and Tarmac have agreed inspection contracts with Hazemag for their upgraded impactors. Such pre-arranged contracts cover detailed inspections of the machines and plant at fixed intervals, as determined by the operating conditions.

 

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