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Primary screen media success for Tema Isenmann

Tema Isenmann polyurethane screen media
Tema Isenmann’s bespoke polyurethane screen media on the primary scalping screen

Polyurethane Isecord panels and WS85 modules prove great success on primary scalping screen

IN January 2022, Tema Isenmann successfully commissioned their bespoke heavy-duty Isecord polyurethane flat bolt-down panels and WS85 modules for a new primary screening application at UK-based quarry.

Guided by a long-established working relationship, the end user’s engineering and procurement departments selected Tema Isenmann’s polyurethane media for both decks on their new 3.15m x 7.6m double-deck primary screen.

 

Tema Isenmann’s technical department was tasked with designing a suitable panel that could withstand a feed rate of 2,200 tonnes/h of –285mm primary crushed granite. The design team, which included managing director Philip Cranston, who has over 40 years’ industry experience, in conjunction with drawing engineers at the company’s state-of-the-art manufacturing facility and offices in Karlsruhe, Germany, set to work on creating the bespoke Isecord panels.

After careful planning, the team had engineered a 70mm thick upper-deck panel featuring upstanding 70mm tall skid bars. Careful attention was paid when selecting the appropriate tooling for the 100mm diameter round apertures, which had to be strategically positioned to protect the cross-members.

After commissioning, early feedback from site was very positive with confirmation that the polyurethane primary panels and modules for both decks were standing up well to the quarry’s high tonnage demands, whilst screening efficiently.

In November 2022, Tema Isenmann engineers Maurice Bishton and Andrew Cox were invited to the quarry to conduct a full deck inspection. Both were delighted to discover that although approximately 1.5 million tonnes of material had been fed to the screen, the screen media were still in good working order with plenty of service life remaining. Tema Isenmann had offered a product life guarantee of 1 million tonnes, which at the time of reporting had been exceeded by 50%.

The quarry’s maintenance manager was upbeat in his feedback: ‘As a customer and user of Tema Isenmann screen media at the quarry, we have been using the Isecord panels and WS85 modules for the past 12 months on our primary scalping screen. We have found them to be of excellent quality, being very robust and hard-wearing with longevity in their initial structure which eliminates any pegging and trapped rock, reducing the possibility of any blockages during production. Our screen fitters are pleased with their performance and have continued to request spares of the same.’

 

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