Description
Application
Elastotec Crowned Ceramic Lagging is designed to be applied to conveyor 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
- Designed to be applied to flat pulley shells which eliminates the need for machining.
- Improved belt tracking.
- 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 logos (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.
- Quicker and easier to apply
- Uniform bonding surface – no gaps
- Uniform crown trasition – kinder to the belt
- Standard offering tapers from 15mm through the centre down to 12mm on the ends. (Other thicknesses available)
- Suitable for long term service at temperatures from - 40°C to +70°C.
Design
Crowned ceramic lagging strips are designed to ensure outstanding durability while helping to maintain belt alignment without the need for a machined crowned pulley shell.
The central portion of the strips has maximum thickness that gradually decreases towards the ends. Tiles are bonded to rubber on 5 sides to ensure maximum tile to rubber adhesion strength and reduce the risk of breakage.
COLD BONDED
Coloured logo
High performance Elastotec ceramic tiles AI203
3 cutting location sipe
CN buffed adhesion layer
HOT VULCANISED
Edge sipe
Elastotec 100% rubber tear bonding system
Uncured bonding layer
Plastic release liner
Rubber Specifications
CROWNED CERAMIC LAGGING : RUBBER SPECIFICATIONS
Typical values
| 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 | PASS/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 |
Ceramic Specifications
CROWNED CERAMIC LAGGING : CERAMIC SPECIFICATIONS
Typical values
| Aluminium oxide | 96% |
| Specific gravity g/cm3 | 3.7 |
| Vickers hardness HV (10) | 1000 plus |
| Flexural strength (Mpa) | 300 |
| Compressive strength (Mpa) | 1800 |
| Fracture Toughness (Mpa m1/2) | 3.5 |
Lagging Specifications - Crowned Ceramic 80% Lagging
COLD BONDED – NAT
COLD BONDED - NAT
DIMENSIONS| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH |
|---|---|---|---|---|
| Crowned Ceramic Lagging 15mm Smooth Tiles | ELA-CWDRC80-N-15P | 250mm-252mm | 15mm middle 12mm ends | fit to pulley size |
COLD BONDED – FRAS
COLD BONDED - FRAS
DIMENSIONS| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH |
|---|---|---|---|---|
| Crowned Ceramic Lagging 15mm Smooth Tiles | ELA-CWDRC80-N-15P | 250mm-252mm | 15mm middle 12mm ends | fit to pulley size |
HOT VULCANISED – NAT
HOT VULCANISED - NAT
DIMENSIONS| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH |
|---|---|---|---|---|
| Crowned Ceramic Lagging 15mm Smooth Tiles | ELA-CWDRC80-N-15PV | 251mm-255mm | 15mm middle 12mm ends | fit to pulley size |
HOT VULCANISED – FRAS
HOT VULCANISED - FRAS
DIMENSIONS| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH |
|---|---|---|---|---|
| Crowned Ceramic Lagging 15mm Smooth Tiles | ELA-CWDRC80-F-15PV | 251mm-255mm | 15mm middle 12mm ends | fit to pulley size |
Example:
Strip: Crowned 80% Ceramic Lagging, smooth tiles, for pulley face width 1900mm natural rubber, hot vulcanised: ELA-CWDRC80-DIA-F-15P-1900
