INKUMER EL
Polyurethane Elastomer Inkumer
INKUMER-EL (PU) is a polyurethane elastomer with hardness of 55, 60, 65, 70, 75, 80, 85 and 90 units according to the Shore scale A.
Polyurethane INKUMER-EL products and blanks are resistant to sudden atmospheric changes and crashproof, durable in commercial operation.
It effectively supersedes rubber plates and parts, steel and plastic sheets in various processes for the integrated problem solution of abrasive wear, impact loads, sticking of materials.
APPLICATION
The sheets are used for lining: bunkers, silos, of transport trays, orepasses, tanks, troughs, chutes, the bodies of large-capacity dumpers, excavator buckets, tractor buckets, buldozer blades, wagons, trolleys, other equipment and machinery, etc.
Rods are used for the manufacture of guide fixtures, covers of drive and pressure rollers, and superior wear life of ordinary rubber covers up to 20 times. Blanks in the form of thick-walled tubes are ideal for covers with press fit for metal rollers. Flaps, bushings, seals, and rings are made from them.
ADVANTAGES
The main advantages of polyurethane INKUMER-EL over lining products from steel, rubber or polyethylene:
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The exceptionally high resistance of the INKUMER-EL material to shock-abrasive loads increases the service life of the lining. Applying INKUMER-EL instead of lining metal, you are guaranteed to increase the life of the equipment 4 times or more!
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Prevents the sticking of material due to low friction coefficient of polyurethane INKUMER-EL. Does not require constant cleaning of the working surfaces.
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Reduction in dusting areas and the absence of welding work in the repair of the gravity-fed equipment.
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Noise reduction in the production areas.
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Reduced time and financial expenditures to repair jobs and frequent replacement of the lining material.
The advantages of polyurethane INKUMER-EL over rubber:
Products made of polyurethane are resistant to sudden atmospheric changes and crashproof, durable in commercial operation and have characteristics which are unattainable for conventional rubbers:
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2 times higher elasticity.
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3 times higher wear resistance.
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2.5 times stronger then rubber.
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High resistance to multiple strains.
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The ability to work under high pressure (up to 105 MPa).
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Chemical resistance to many solvents and acids.
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Increased hardness (up to 95 units of Shore).
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Temperature range of work from -50°C to +80°C.
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Resistance to microorganisms and fungi.
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Vibration and oil-benzine-resistance.
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Elasticity at low temperatures.
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High dielectric properties.
NAME OF INDICATOR
SHORE A HARDNESS
RUBBER
65-75
INKUMER EL
65-95
MODULUS OF ELASTICITY TENSILE 100%
RUBBER
12
INKUMER EL
29
REBOUND ELASTICITY (%)
RUBBER
30
INKUMER EL
40
RUPTURE STRENGTH (KG/CM²)
RUBBER
115
INKUMER EL
312
STRENGTH TO TEARING (METHOD C), N/MM
RUBBER
20
INKUMER EL
58
THE FROST RESISTANCE COEFFICIENT BY THE ELASTIC RECOVERY AFTER COMPRESSION AT T -50°C
RUBBER
0,2
INKUMER EL
0,45
ABRASION RESISTANCE (SCRAPER N22)
RUBBER
2
INKUMER EL
10
ELONGATION AT BREAK (%)
RUBBER
200
INKUMER EL
54
CHARACTERISTICS
SHORE HARDNESS
UNITS
Shore A
TEST METHOD
DIN 53505
VALUE
70
VALUE
80
VALUE
90
SPECIFIC WEIGHT
UNITS
g/cm³
TEST METHOD
DIN 53479
VALUE
1,26
VALUE
1,26
VALUE
1,26
TENSILE STRENGTH
UNITS
N/mm²
TEST METHOD
DIN 53504
VALUE
>40
VALUE
>40
VALUE
>45
ELONGATION AT BREAK
UNITS
%
TEST METHOD
DIN 53504
VALUE
>450
VALUE
>450
VALUE
>450
REBOUND ELASTICITY
UNITS
%
TEST METHOD
DIN 53512
VALUE
35
VALUE
35
VALUE
35
UNIT TENACITY
UNITS
N/mm
TEST METHOD
DIN 53515
VALUE
>30
VALUE
>40a
VALUE
>60
ABRASION
UNITS
mm³
TEST METHOD
DIN 53516
VALUE
<20
VALUE
<20
VALUE
<25
COMPRESSION SET 20%, 20°C, 72 HOURS
UNITS
%
TEST METHOD
DIN 53517
VALUE
20
VALUE
20
VALUE
20
COMPRESSION SET 20%, 70°C, 24 HOURS
UNITS
%
TEST METHOD
DIN 53517
VALUE
30
VALUE
30
VALUE
30
SUPPLY
Assembly of INKUMER-EL sheets
The lining of equipment components is conducted using adhesive, bolts, or a combined method.
Rods: diameter from 20 to 200 mm
Sheets, thickness of 1-100mm
Plate dimensions: 1000x1000 mm, 1000x2000 mm, 1000x3000 mm
