Description
Application
Elastotec Crowned Diamond Rubber Lagging is designed for use in medium belt tension applications and can be applied to conveyor drive, tail, snub, bend or take-up pulleys. It is used for conveyor system applications in the mining, quarrying, mineral and metal processing industries but can be used on any conveyor pulley.
Key features and benefits
- Improved belt tracking.
- Suitable for low and medium belt tension applications.
- Available in 250mm wide strips that can be made to suit any pulley size and make it easy to install.
- Available in highly abrasion resistant SBR for above ground applications and FRAS for underground and high risk applications.
- Coloured wear indicator (Blue for SBR and Red for FRAS).
- High quality rubber formulations designed for good bonding, resistance to degradation by out door exposure, and good abrasion resistance.
- Buffed CN Bonding layer for increased adhesion for Cold Bonded application.
- Available with uncured bonding layer for Hot Vulcanised application.
- Tapered ends thickness from 20mm to 12mm. 0.9 degree angle.
- Suitable for long term service at temperatures from - 40°C to +70°C.
Design
Crowned lagging strips typically have a 1/3rd flat center section and 1/3rd tapered end sections based on pulley face width.
COLD BONDED
Center lagging section 20mm thick
length can be varied to suit pulley size.
Coloured logo
Tapered end piece extends
past the pulley end and is trimmed
flush with the shell.
CN buffed adhesion layer
HOT VULCANISED
Center lagging section 20mm thick
length can be varied to suit pulley size.
Coloured logo
Tapered end piece extends
past the pulley end and is trimmed
flush with the shell.
CN buffed adhesion layer
Uncured bonding layer
Plastic release liner
Rubber specifications
| NAT | FRAS | |
|---|---|---|
| Polymer | SBR | Blend |
| Tensile strength (MPa) min ISO37 | 18.0 | 16.0 |
| % Elongation min ISO37 | 550% | 500% |
| Hardness (shore A) ISO868 | 65+/-5 | 65+/-5 |
| Abrasion resistance max vol. loss ISO 4649 method A (non-rotating) | 70mm3 | 150mm3 |
| FRAS - MDG3608 and MSHA Standards | N/A | PASSED/ACCEPTED |
| Heat ageing (Property change after 70°C 168hs) | Tensile strength +1% Elongation -15% Hardness 5 points | Tensile strength +5% Elongation -1% Hardness 3 points |
| Continuous operating temperature | -40/+70°C | -40/+70°C |
Lagging specifications – Crowned Diamond Rubber Lagging
COLD BONDED – NAT
| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH |
|---|---|---|---|---|
| Crowned Diamond Rubber Lagging 12mm | ELA-CROWN-RL-DIA-N-20 | 250mm-252mm | Taper end 0.9 angle | fit to pulley size |
COLD BONDED - FRAS
| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH |
|---|---|---|---|---|
| Crowned Diamond Rubber Lagging 12mm | ELA-CROWN-RL-DIA-F-20 | 250mm-252mm | Taper end 0.9 angle | fit to pulley size |
HOT VULCANISED - NAT
| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH |
|---|---|---|---|---|
| Crowned Diamond Rubber Lagging 12mm | ELA-CROWN-RL-DIA-N-20V | 251mm-255mm | Taper end 0.9 angle | fit to pulley size |
HOT VULCANISED - FRAS
| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH |
|---|---|---|---|---|
| Crowned Diamond Rubber Lagging 12mm | ELA-CROWN-RL-DIA-F-20V | 251mm-255mm | Taper end 0.9 angle | fit to pulley size |
Thickness variation (all strips/pulley) +/-0.5mm.
Product code for different lengths: Add 5 digits indicating the overall strip length in mm.
Strip length to always be 100mm longer than face width to allow overhang for trimming after application.
Example:
Strip: Crowned Rubber Lagging for pulley face width 1500mm natural rubber, hot vulcanised: ELA-CROWN-RLDIA-N-20V-01600
Thickness variation (all strips/pulley) +/-0.5mm.
Crowned Rubber Diamond Lagging with thickness only recommended for pulleys with diameters over 600mm.
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