• High friction coefficient on drive pulleys.
• Grouted tiles decrease the risk of ingress and corrosion and have longer service life and superior bonding strength.
• Maintenance-free, wear-resistant cover applied to pulley shells that contribute to reduced downtime and lower operating costs by improving traction in drive pulleys and providing a hard-wearing surface on non-drive pulleys.
• Drive Pulleys have dewatering grooves that dissipate water and can be hosed down without losing traction. And studs with rounded edges that present a less severe interface with the belt bottom cover.
• Smooth ceramic on Non-Drive Pulleys provides a low maintenance surface with proven long service life under a variety of conditions.
• Innovative application method reduces application time and ensures tile alignment.

Elastotec Direct Bond Ceramic Lagging is designed for use on drive and non-drive conveyor pulleys. This lagging provides a maintenance free wear resistant surface that will provide increased traction for drive pulleys and a smooth surface for bend and tail pulleys.

Important considerations for Direct Bond Ceramic Lagging
Direct Bond Ceramic Lagging is selected as a lagging solution due to its high adhesion strength of ceramic tiles to the pulley shell through the epoxy adhesive (>20MPa). In the right application, the direct bond provides a maintenance-free surface.

Direct Bond behaves differently to rubber-based laggings and needs to be carefully assessed before being selected. Direct bond is a rigid pulley lagging and does not have the flexibility that rubber-based laggings have.

Aspects to consider when selecting direct bond lagging:

• Maximum allowable pulley shell flexing in centre 0.5mm. Cyclic flexing of the pulley shell can cause tile debonding.
• Rubber-based laggings expand and contract when moving from the belt contact area to the non-belt contact area. This cyclic exercise helps prevent the build-up of material.
• Direct Bond Lagging is rigid and does not have the ability to expand and contract.
  Lagging and belt surfaces in contact are affected by cyclic stresses. On a drive pulley, belt tension goes from high T1 at the entry to lower T2 at the exit. The belt tries to retract from exit to entry. The belt retraction can cause localised slippage if lagging is not flexible enough to keep engagement. Direct Bond Ceramic Lagging needs to be evaluated for localised slippage before installation.