PROEXPORT / KNOWLEDGE
Technical Knowledge & Roller Engineering Guides
Engineering criteria for elastomer selection, chemical resistance, reconditioning feasibility, durometer measurement, and RFQ specifications.
ENGINEERING GUIDES
Data-Driven Roller Selection & Maintenance
Rubber vs Polyurethane Roller Coverings: Engineering Comparison
Durometer Shore hardness is merely the starting point. Compare chemical contact, dynamic nip load, tear propagation, blade cutting resistance, and DIN 53516 abrasion resistance before selecting.
When to Recondition vs Manufacture a New Industrial Roller?
Reconditioning saves 50–60% of total procurement cost if the structural core and bearing journals meet geometric runout and fatigue criteria. Review the technical qualification checklist.
Technical Data Checklist for Roller Quotation & Reconditioning
An accurate engineering quotation requires geometric drawings, dynamic nip load data, continuous rotational speeds, chemical environment, and operating temperature profiles.
How to Select Industrial Roller Covering Material: Engineering Guide
Selecting an elastomer, cast polyurethane, or hard functional coating requires simultaneous evaluation of four engineering pillars: mechanical nip stress, chemical solvent exposure, thermal equilibrium, and rotational dynamics.
Chemical Resistance Chart for Industrial Roller Coverings
Chemical resistance depends on the base elastomer polymer, medium concentration, operating temperature, and exposure time. This chart serves as PROEXPORT’s engineering material selection guide.
Temperature Operating Ranges & Thermal Limits for Roller Coverings
Maximum allowable operating temperature depends on the elastomer matrix, adhesive bonding strength to the steel core, and internal hysteretic heat build-up under cyclic nip compression.
NBR vs EPDM: Elastomer Selection for Industrial Mediums
NBR and EPDM represent polar opposites in polymer chemistry. Selecting the wrong compound causes severe swelling, rapid softening, and delamination within 48 hours.
Standard Cast Polyurethane vs Vulkollan®: Technical Guide
Vulkollan® is Covestro’s premium hot-cast elastomer based on 1,5-NDI (naphthalene diisocyanate) and polyester polyol. Compare dynamic hysteretic heat, tear resistance, and load capacity up to 10,000 kg.
How to Specify Roller Covering Hardness: Shore A, Shore D, Vickers HV
Durometer hardness is a contact elasticity index, not a complete structural specification. Review measurement standards ISO 7619-1, ISO 868, ISO 6507-1, and wall-thickness influence on readings.
Why Roller Coverings Swell or Delaminate: Failure Analysis
Swelling, surface softening, and interfacial delamination stem from chemical diffusion, thermal oxidation, or interfacial primer degradation. Review engineering countermeasures.
Industrial Roller Engineering Glossary: Technical Terms & Standards
Engineering reference for precision roller manufacturing, dynamic balancing to ISO 1940-1, surface finishes Ra/Rz, nip physics, and advanced covering technologies.
PROEXPORT / INDUSTRIAL ROLLERS
From technical drawing to line-ready solution.
Submit dimensions, photos, and operating conditions. We will determine the optimal manufacturing or reconditioning scope.