Description
Our engineers and chemists are continually improving our materials, with one aim, to provide the best possible sealing solutions for our customers.
X-ECOPUR@ (HARD VERSION OF POLYURETHANES)
Compared to standard materials harder grades show nearly the same tensile strength and elongation at break at a considerably higher 100% modulus of strain as well as higher tear strength. The tensile set is for instance on the same level as with standard materials. X-ECOPUR@ versions have higher extrusion resistance than standard materials and therefore allow higher pressure at same geometries.
Excellent fitting properties:
Compared to PTFE solutions, ECONOMOS@ X-ECOPUR@ composite seals show the same material hardness but considerably lower residual deformation and lower mounting forces. An additional benefit is the resistance to damage on assembly and installation, which can be a major problem with PTFE compounds. Also there is no requirement for sizing or calibrating the seals after assembly.
Leakage:
The requirement of low rod sealing leakage is normally only obtained by fitting seals in costly multipart solutions, as e.g. positioning in a row of 2 sealing elements at same design (tandem arrangement) or in combination of a composite seal with a secondary elastomer or polyurethanelip seal.
Applications:
Cylinders for
• mobile hydraulics
• hydraulic presses
• machine tools and clamping units (control cylinders)
• milling machines (feeder cylinders)
• injection moulding machines
• proportioning equipment
• aso
Composite seals made of ECONOMOS@ X-ECOPUR@ polyurethanes are an ideals alternative to PTFE solutions, if temperature range and used media do not require PTFE systems.
Advantages of composite seals made of optimized ECONOMOS@ X-ECOPUR@ polyurethane materials
• 3 Materials available (X-ECOPUR-570@, X-H-X-ECOPUR-60D@, X-ECOPUR-57D@)
• available as single piece or small medium quantities with short delivery times
• low-cost as moulded production for high quantities
• capable for higher pressure or larger extrusion gap
• superior lifetime
• available up to a diameter of 2 metres
Comparison to PTFE-solutions
Residual Deformation
• considerably lower tensile set at same material hardness
Excellen fitting Properties
• Insensibility against damage on assembly and installation no tools necessary
Leakage
• Low Leakage-values
• Extrusion stability
Friction/ Wear Resistance
• Superior abrasion resistance of the polyurethane material
Stick-slip Characteristics
• Stick-slipcharacteristics comparable with conventional PTFE Seals
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