Hole Punching Service

Features :

Superior Traction: The diamond shape and Z shape groove on the surface greatly increases the friction/traction between pulley and belt. Therefore, less slipping and better driving performance.

Self-Cleaning: Foreign matter discharge itself through the double chevron groove on the pulley lagging surface and the gap between laggings. This structure ensures no material build-up so that the belt is easy to track and runs steady. Protect the pulley face and belt cover from damage and increase the service life.

Self-Cooling: The ventilation and heat dissipation improved through the double chevron groove on the pulley lagging surface and the gap between laggings. Reduced temperature of both belt cover and pulley face result in better performance and longer life.

Suitable for all types of pulley with different diameters as long as the complete set is statically balanced.
Selection of materials: Two types of materials are available to choose:
(1) General Purpose: High-elasticity, abrasion resistant, oil-resistant, anti-static material which is widely used for grain handling and other general
purposes.
(2) Flame Retardant Type: High abrasion resistant, flame retardant, oil-resistant and anti-static. Meet the safety requirements of underground mining industry.

Easy to maintain: Replace the slide lagging without removing the pulley from the conveyor system and extra rubber fabricating. Simply slide out old lagging, slide in new lagging and resume operation. Reduce the shutdown time and maintenance cost dramatically and translate into high productivity.

NameSizeWidthThickness mmLength L
mmHH1H2mm
 Lagging Pad SRS15 B=139 15 – – 1830
 Lagging Pad SRS19 B B=13919 – – 1830
 Inclined Lagging Pad SRE19 B B=139 – 13 19 254
 Double Retainer SFK – – – 1830
 Single Retainer SFA – – –1830

How to Order :

1. Calculate Pulley Diameter without lagging: Use designed overall pulley diameter with lagging minus 2 x chosen lagging pad thickness (H).

2. Complete Set Solutions: Our engineer team will come up the solution of pulley static-balance based on the pulley diameter without lagging and the required length (L). We can also meet requirements according to customer’s personalized specification/design

3. Requirement of drum face pulley: If the pulley face without lagging is drum, use SRS15 or SRS19 lagging pads. If the pulleywithout lagging is flat face with less than 750mm face length, customer could thicken the middle portion of the pulley face and use SRS15 or SRS19 lagging pads. If the pulley without lagging is flat face with face length greater than 750mm, use SRE19+SRS19+SRE19 inclined lagging pads to achieve drum face.

Installation Step:

1. Based on the number of lagging pads required, mark the installationpositions of the lagging pads on the pulley evenly.
2. Weld or bolt the first retainer onto the marked position (make sure the retainer is parallel to the axial line of the pulley).

3. Slide the lagging pad into the first installed retainer, and then based on the corresponding position, weld or bolt the second retainer on the other side of the pad. Repeat this step until installing all retainer and pads.
4. After installing the pad into the retainer, please also install two fixtures at both ends of the pads to prevent the pads from sliding out of the retainer,
5. The single retainer fixing installation should follow the spacing between adjacent single retainers.
6. Maintenance/Replacement: Remove the fixtures on both ends of the pads. Simply slide out the old ones and slide into the new ones, then put the fixtures back on again.

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