Description
Application
Elastotec Checkerboard 20% Ceramic 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
- Increased grip and traction for applications where rubber lagging is experiencing slippage.
- Suitable for low and medium belt tension applications.
- Available in 250mm wide rolls that can be cut 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 outdoor exposure and good abrasion resistance.
- Buffed CN Bonding layer for increased adhesion.
- Can be supplied in a range of thicknesses (12,15 and 20mm).
- Suitable for long term service at temperatures from - 40°C to +70°C.
- No tile debonding from the rubber backing.
Design
Elastotec Checkerboard 20% Ceramic Lagging is a cost efficient ceramic lagging version.
Same design as the Medium Single Row 38% Ceramic Lagging but with every second tile removed.
COLD BONDED
Wear indicator coloured logo
High performance Elastotec ceramic tile on each diamond for extra grip
Edge sipe
3 cutting location sipe
Premium finish
CN buffed adhesion layer
HOT VULCANISED
Wear indicator coloured logo
High performance Elastotec ceramic tile on each diamond for extra grip
Edge sipe
3 cutting location sipe
Premium finish
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 |
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 – Checkerboard 20% Ceramic Lagging
COLD BONDED – NAT
COLD BONDED - NAT. DIMENSIONS
| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH | WEIGHT/lm |
|---|---|---|---|---|---|
| Checkerboard 20% Ceramic Lagging 12mm | ELA-SRC20-N-12K | 250mm-252mm | 12mm-13mm | 58.2m | 4.35kg |
COLD BONDED - FRAS. DIMENSIONS
| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH | WEIGHT/lm |
|---|---|---|---|---|---|
| Checkerboard 20% Ceramic Lagging 12mm | ELA-SRC20-F-12K | 250mm-252mm | 12mm-13mm | 58.2m | 4.50kg |
HOT VULCANISED - NAT. DIMENSIONS
| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH | WEIGHT/lm |
|---|---|---|---|---|---|
| Checkerboard 20% Ceramic Lagging 12mm | ELA-SRC20-N-12KV | 251mm-255mm | 13mm-14.2mm | 9.7m | 5.40kg |
HOT VULCANISED - FRAS. DIMENSIONS
| PRODUCT | CODE | WIDTH | THICKNESS | LENGTH | WEIGHT/lm |
|---|---|---|---|---|---|
| Checkerboard 20% Ceramic Lagging 12mm | ELA-SRC20-F-12KV | 251mm-255mm | 13mm-14.2mm | 9.7m | 5.80kg |
Product code for different lengths: Add 5-digit number to indicating length in mm.
Example
Roll: 12mm 58.2 m roll product code: ELA-SRC-F-12K-58200
Strip: 15mm 1.2 m ceramic length strip product code: ELA-SRC-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.
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.
