Polyurethane Products

Traditionally, lagging is a rubber strip that coats a conveyor pulley. It is designed to effectively disperse water and dirt, the same way a tyre does.

Polyurethane outlasts rubber by a factor of between five and 10. It provides superior impact, cut and abrasive resistance compared to rubber.

But it can’t be put directly on a pulley in situ as there is no glue that can bond it to the steel shell. One option bonds polyurethane lagging to rubber which can then be bonded to the pulley in the field. The other option is to hot cast the polyurethane on to the shell in the factory. 

Brain works with Lord Chemicals to perfect the bonding process. Our bond strengths are well above expected standard.

We supply the products in any colour (to match corporate colours) and have a logo embossed into it.  They can be in thicknesses starting from 10mm to your required length. 

Polyurethane is low friction and belt friendly meaning it better resists build up and it is also effective in dirt and water shedding. Polyurethane also makes for a quieter pulley operation. Hot cast lagging is particularly suited to new and OEM non-drive pulley applications.

All of these features mean reduced operating costs including reduced ongoing maintenance costs in addition to increased working life over rubber lagging. Reduced maintenance requirements also reduces risk to workers from inspection and maintenance duties. 

With rubber lagging this process is required annually. Polyurethane means this activity is only done once every five years.  To re-lag a pulley, one must stop the conveyor and remove the pulley, also stopping production.  This exercise can be quite onerous and high risk, with pulleys sometimes 40 metres in the air. The stoppage requires deployment of cranes, scaffolding, elevated platforms, tag-out procedures, risk assessment and a myriad contract operating staff who may not usually work on site.