Description
Application
Elastotec Ceramic Lagging can be applied to conveyor drive, tail, snub, bend or take-up pulleys when there’s a requirement for more grip than what Rubber Lagging provides or longer service life as a result of higher wear resistance than rubber. Ceramic Lagging is used for pulleys operating under extreme conditions. It is suitable for wet, clay-containing, muddy and abrasive materials. Also for belts under very high tension. Especially suitable for drive pulleys subject to extreme wear to eliminate slippage.
Key features and benefits
- Up to 96% Aluminium oxide tile material provide extreme wear resistance.
- Rubber compound blended with CN polymers provide outstanding adhesion to ceramic tiles, rubber and metal.
- Buffed CN bonding layer and buffed edges for optimum cold vulcanised adhesion to the pulley.
- Low sulphur rubber makes rubber hardness stable with age.
- Ceramic tiles bonded to rubber on 5 sides to resist better tile cracking and pull out.
- Can be supplied in cut to size strips with rubber ends to suit customer preference.
- Dimpled tiles for increased grip on drive pulleys and smooth tiles to protect non drive pulleys from damaging the belt cover.
- Can be hot vulcanised to the pulley to achieve best bonding to metal pulley shell.
- Cutting sipes allow adjustment of strip width to suit pulley diameter.
- Supplied in long rolls up to 50m to reduce waste and be more cost effective and reduce stock requirement quantity as one roll fits all pulley widths.
Design
Elastotec Ceramic Lagging consists of vulcanised alumina tiles bonded onto rubber.
The rubber is bonded to five surfaces of the tile to ensure tile cushioning and better adhesion strength. Tiles provide high abrasion resistance. Flexible rubber backing containing Elastotec rubber compounds is used to provide abrasion resistance and flexibility to the tile.
Elastotec ceramic pulley lagging is made using two different rubber layers extruded together. The top layer being the high abrasion resistant layer to which the tiles are vulcanised onto and the bottom layer being the adhesion CN bonding layer. Elastotec’s specially formulated neoprene based CN bonding layer is engineered to achieve ultimate adhesion when bonded to steel pulley surfaces. Elastotec’s CN bonding layer has a buffed finish to provide an optimum surface contact area that increases adhesion force.
Cold bonded
Ceramic proven tile design
Elastotec 100% rubber tear bonding system
Edge sipe
3 cutting location sipe
CN buffed adhesion layer
Premium finish
Coloured logo
Hot Vulcanised
Ceramic proven tile design
Elastotec 100% rubber tear bonding system
Edge sipe
3 cutting location sipe
CN buffed adhesion layer
Premium finish
Uncured bonding layer
Plastic release liner
Coloured logo
Elastotec Ceramic Lagging is 250mm wide to ensure easy handling and application. It can be supplied in thicknesses from 12mm to 25mm. Thicker rubber allows more deflection of the tiles under the belt. This property provides additional reserves with extreme belt tensions, especially in combination with fabric belts with high elongation or low cover thickness on the running side.
It can be supplied in 3 formats:
1.
In long roll lengths that fit on standard sized pallets to eliminate waste and for cost effective transportation and storage. Ceramic Lagging in rolls can be cut to the pulley face width length to have a full face width ceramic coverage.
2.
For hot vulcanised applications, Ceramic Lagging can be supplied in rolls together with rubber end pieces, which can be added to build your own strips.
3.
In strips with rubber ends to fit pulley face widths.
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 |
Ceramic Specifications
| Aluminium oxide | 96% |
|---|---|
| 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 |
NAT and FRAS
Elastotec Rubber and Ceramic Laggings are available in both SBR (NAT) and FRAS approved compounds. FRAS lagging is MDG3608 certified and MSHA accepted, made of a fire resistant and antistatic compound that is primarily used in applications where there is a risk of fire and/or explosion as a safety precaution. These applications include underground coal mines, power stations, grain handling facilities and sugar terminals. Elastotec uses blue coloured inserts to identify SBR (NAT) rubber products and red coloured inserts to identify FRAS rubber products.
Elastotec lagging can be applied to pulleys by cold bonding or by hot vulcanisation.
ELASTOTEC COLD BONDING
PULLEY LAGGING
Elastotec Cold Bonding Rubber Lagging has the CN buffed bonding layer packed in plastic to protect and keep it fresh and free from contamination until application to the pulley.
A rubber tear bond is achieved by using Elastotec Metal Primer 2205 and Elastotec Cold Bonding Adhesive to chemically interlock with the CN bonding layer, making a strong interface between the layers.
An Elastotec approved applicator using the Elastotec application procedure will achieve reliable adhesion levels that exceed the 9 N/mm industry standard and are typically at 12 N/mm.
ELASTOTEC HOT VULCANISING PULLEY LAGGING
Elastotec Hot Vulcanising Rubber Lagging has a 1.2mm thick uncured rubber layer applied to the back and sides of the lagging.
Hot Vulcanising Lagging is supplied packed in plastic to protect and keep the uncured bonding layer fresh and free from contamination until application to the pulley.
Application by a trained Elastotec approved applicator using the Elastotec application procedures will guarantee a 100% rubber tear bond between the lagging and the pulley shell with typical adhesion values exceeding 20 N/mm.
Lagging specifications – Medium Single Row Ceramic 38% Lagging
COLD BONDED - NAT. DIMENSIONS DIMPLE TILES
| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH | WEIGHT/lm |
|---|---|---|---|---|---|
| Ceramic Lagging 12mm | ELA-SRC38-N-12K | 250mm-252mm | 12mm-13mm | 58.2m | 4.19kg |
| Ceramic Lagging 15mm | ELA-SRC38-N-15K | 250mm-252mm | 15mm-16mm | 48.5m | 4.84kg |
| Ceramic Lagging 20mm | ELA-SRC38-N-20K | 250mm-252mm | 19mm-20mm | 38.8m | 5.23kg |
COLD BONDED - NAT. DIMENSIONS PLAIN TILES
| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH | WEIGHT/lm |
|---|---|---|---|---|---|
| Ceramic Lagging 12mm | ELA-SRC38-N-12P | 250mm-252mm | 12mm-13mm | 58.2m | 4.39kg |
| Ceramic Lagging 15mm | ELA-SRC38-N-15P | 250mm-252mm | 15mm-16mm | 48.5m | 5.04kg |
| Ceramic Lagging 20mm | ELA-SRC38-N-20P | 250mm-252mm | 19mm-20mm | 38.8m | 5.43kg |
COLD BONDED - FRAS. DIMENSIONS DIMPLE TILES
| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH | WEIGHT/lm |
|---|---|---|---|---|---|
| Ceramic Lagging 12mm | ELA-SRC38-F-12K | 250mm-252mm | 12mm-13mm | 58.2m | 4.49kg |
| Ceramic Lagging 15mm | ELA-SRC38-F-15K | 250mm-252mm | 15mm-16mm | 48.5m | 4.79kg |
| Ceramic Lagging 20mm | ELA-SRC38-F-20K | 250mm-252mm | 19mm-20mm | 38.8m | 5.59kg |
COLD BONDED - FRAS. DIMENSIONS PLAIN TILES
| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH | WEIGHT/lm |
|---|---|---|---|---|---|
| Ceramic Lagging 12mm | ELA-SRC38-F-12P | 250mm-252mm | 12mm-13mm | 58.2m | 4.69kg |
| Ceramic Lagging 15mm | ELA-SRC38-F-15P | 250mm-252mm | 15mm-16mm | 48.5m | 4.99kg |
| Ceramic Lagging 20mm | ELA-SRC38-F-20P | 250mm-252mm | 19mm-20mm | 38.8m | 5.79kg |
Product code for different lengths: Add 5-digit number to indicating length in mm.
Example
Roll: 12mm 58.2 m roll product code: ELA-SRC38-F-12K-58200
Strip: 15 mm 1.2 m ceramic length strip product code: ELA-SRC38-F-15K-01200
Ceramic strips are supplied with 130mm rubber end pieces at each end.
Thickness variation (all strips/pulley) +/-0.5mm.
Ceramic Lagging with thickness >15mm only recommended for pulleys with diameters over 600mm.
Lagging Specifications – Medium Single Row Ceramic 38% Lagging
HOT VULCANISED - NAT. DIMENSIONS DIMPLE TILES
| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH | WEIGHT/lm |
|---|---|---|---|---|---|
| Ceramic Lagging 12mm | ELA-SRC38-N-12KV | 251mm-255mm | 13mm-14.2mm | 9.7m | 4.70kg |
| Ceramic Lagging 15mm | ELA-SRC38-N-15KV | 251mm-255mm | 16mm-17.2mm | 9.7m | 5.35kg |
| Ceramic Lagging 20mm | ELA-SRC38-N-20KV | 251mm-255mm | 21mm-22.2mm | 9.7m | 5.74kg |
| Ceramic Lagging 25mm | ELA-SRC38-N-25KV | 251mm-255mm | 26mm-27.2mm | 9.7m | 6.13kg |
HOT VULCANISED - NAT. DIMENSIONS PLAIN TILES
| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH | WEIGHT/lm |
|---|---|---|---|---|---|
| Ceramic Lagging 12mm | ELA-SRC38-N-12PV | 251mm-255mm | 13mm-14.2mm | 9.7m | 4.90kg |
| Ceramic Lagging 15mm | ELA-SRC38-N-15PV | 251mm-255mm | 16mm-17.2mm | 9.7m | 5.55kg |
| Ceramic Lagging 20mm | ELA-SRC38-N-20PV | 251mm-255mm | 21mm-22.2mm | 9.7m | 5.94kg |
| Ceramic Lagging 25mm | ELA-SRC38-N-25PV | 251mm-255mm | 26mm-27.2mm | 9.7m | 6.33kg |
HOT VULCANISED - NAT. DIMENSIONS END PIECES
| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH | WEIGHT/lm |
|---|---|---|---|---|---|
| End Piece 12mm | ELA-SR-END-N-12V | 251mm-255mm | 13mm-14.2mm | 130mm | 0.44kg |
| End Piece 15mm | ELA-SR-END-N-15V | 251mm-255mm | 16mm-17.2mm | 130mm | 0.52kg |
| End Piece 20mm | ELA-SR-END-N-20V | 251mm-255mm | 21mm-22.2mm | 130mm | 0.57kg |
| End Piece 25mm | ELA-SR-END-N-25V | 251mm-255mm | 26mm-27.2mm | 130mm | 0.62kg |
HOT VULCANISED - FRAS. DIMENSIONS DIMPLE TILES
| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH | WEIGHT/lm |
|---|---|---|---|---|---|
| Ceramic Lagging 12mm | ELA-SRC38-F-12KV | 251mm-255mm | 13mm-14.2mm | 9.7m | 4.70kg |
| Ceramic Lagging 15mm | ELA-SRC38-F-15KV | 251mm-255mm | 16mm-17.2mm | 9.7m | 5.35kg |
| Ceramic Lagging 20mm | ELA-SRC38-F-20KV | 251mm-255mm | 21mm-22.2mm | 9.7m | 5.74kg |
| Ceramic Lagging 25mm | ELA-SRC38-F-25KV | 251mm-255mm | 26mm-27.2mm | 9.7m | 6.13kg |
HOT VULCANISED - FRAS. DIMENSIONS PLAIN TILES
| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH | WEIGHT/lm |
|---|---|---|---|---|---|
| Ceramic Lagging 12mm | ELA-SRC38-F-12PV | 251mm-255mm | 13mm-14.2mm | 9.7m | 4.90kg |
| Ceramic Lagging 15mm | ELA-SRC38-F-15PV | 251mm-255mm | 16mm-17.2mm | 9.7m | 5.55kg |
| Ceramic Lagging 20mm | ELA-SRC38-F-20PV | 251mm-255mm | 21mm-22.2mm | 9.7m | 5.94kg |
| Ceramic Lagging 25mm | ELA-SRC38-F-25PV | 251mm-255mm | 26mm-27.2mm | 9.7m | 6.33kg |
HOT VULCANISED - FRAS. DIMENSIONS END PIECES
| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH | WEIGHT/lm |
|---|---|---|---|---|---|
| End Piece 12mm | ELA-SR-END-F-12V | 251mm-255mm | 13mm-14.2mm | 130mm | 0.50kg |
| End Piece 15mm | ELA-SR-END-F-15V | 251mm-255mm | 16mm-17.2mm | 130mm | 0.60kg |
| End Piece 20mm | ELA-SR-END-F-20V | 251mm-255mm | 21mm-22.2mm | 130mm | 0.66kg |
| End Piece 25mm | ELA-SR-END-F-25V | 251mm-255mm | 26mm-27.2mm | 130mm | 0.71kg |
Product code for different lengths: Add 5-digit number to indicating length in mm.
Example
Roll: 12mm 9.7m roll product code: ELA-SRC38-F-12K-9700S 15mm 1.2m ceramic length strip product code: ELA-SRC38-F-15K-01200.
Ceramic strips are supplied with 130mm rubber end pieces at each end.
Thickness variation (all strips/pulley) +/-0.5mm.
Ceramic Lagging with thickness >15mm only recommended for pulleys with diameters over 1000mm.
Storage recommendations:
- Stock usage based on a first-in first-out method (FIFO).
- The storage room for lagging must be cool, dry and dust-free.
- Avoid storage places near sources of ozone generating equipment.
- Do not store outside.
- Avoid storage in direct sunlight and strong artificial light as UV light can damage the products and may lead to a premature ageing.
- Under no circumstances should fuels, lubricants, acids, disinfectants, solvents or other chemicals be stored in the same storage area.
- Keep the storage place clean. Protect the material from dust, water etc. with suitable coverings.
- Allow 24 hours before use when lagging is removed from cold storage.
Shelf life:
COLD BONDING LAGGING AND WEAR PANELS
- Stored <25°C 3 years shelf life
- Light buffing of bonding surfaces is recommended if over 4 months from production date
HOT VULCANISED LAGGING AND WEAR PANELS
- <7°C and away from UV and ozone generating equipment 12 months. Products stored for longer than 6 months will need to be re-tested for adhesion before being used, and the recommended shelf life is 12 months.
ADHESIVES AND PRIMERS
- Store in flammable goods cabinet
- Stored <25°C
- Shelf life:
- Primers 2 years
- Cold bonding adhesive 2 years
- Hot vulcanising adhesive 12 months
- Direct bond adhesive 2 years
Products stored under the above conditions for longer periods of time than recommended need to be re-tested for adhesion before being used. If any doubts on storage recommendations, contact Elastotec.
