New CMB International wash screen puts production back on track for McLeod Aggregates.

Quarry plant and equipment specialist CMB International of Ravenstone, Leicestershire have recently installed a new bespoke rinsing screen for a Norfolk sand and gravel supplier.

Owned and operated by McLeod Aggregates, Bittering Quarry is situated in Longham, near Dereham, Norfolk. A long established operation, the quarry was originally operated by Tarmac and was acquired by the McLeod family, local farmers and gravel suppliers, in 2014. The quarry processes approximately 100,000 tonnes/annum of sand and gravel which is processed by an on-site wash plant, incorporating a primary rinsing screen, which with several bearing failures in quick succession, along with numerous cracks was clearly needing immediate replacement.

After researching the market for a new screen, it became apparent that after several recommendations CMB International were the company to approach with the task of providing a new replacement screen. Consequently, following a successful quotation CMB International were duly awarded the project to design and manufacture a replacement for the existing double deck screen.

A bespoke replacement:
After a subsequent site visit CMB engineers recorded all the critical measurements to ensure the new screen picked up on the same feed/discharge points including the spring centres and motor drive point.

Liam Holland – General Manager, commented, “The original screen had numerous cracks around the vibrator tube that had been welded to keep the screen operational, but it was plain to see that it was at the end of its life!

CMB duly supplied a new 1.53 x 6.1m double deck rinsing screen which was fitted and commissioned within a specified time frame by associate company – S.P Services.

Liam, continued, “It was more or less a straight forward replacement although we did have to adapt our vibrator unit to suit the existing Cardan shaft drive. We also installed an auto-greaser unit to help prolong the lifetime of the bearings.”

The new screen now processes between 80-100tph and has effectively maintained the production since installation.

David Thurston-Site Manager, commented,” From our initial enquiry it has been a seamless transaction with CMB responding promptly throughout. They were very efficient and designed and manufactured us a new bespoke screen within a very short window. Since the installation the new screen has been unbelievably quiet compared to the old one! It’s been a very successful installation which has finally guaranteed production across the primary rinsing screen.”

A comprehensive range:
CMB offer a comprehensive range of vibrating screens and feeders specifically designed for the aggregates market. Their equipment can accommodate whatever screening media is specified (wire cloth, polyurethane, rubber punch plate etc.). All screens and feeders can be custom designed to fit any new or existing application.

Associated Businesses

  • CMB International LimitedCMB International Ltd, supplier of quality products and solutions for crushing and screening equipment, provide a comprehensive range of heavy duty equipment for customers to maximise their potential outputs fo...