Real production problems, the Soremag analysis and the results obtained on rubber and polyurethane rollers and wheels, and on molded polyurethane parts.
Each case starts from a real plant problem, sets out our wear analysis and presents the solution chosen and its results.
Rail wear was leading to a rebuild project estimated at between $750,000 and $1.2M — a lot of money in 1995. A wheel covered with a polyurethane developed in the field — Cerathane — stopped the rail wear and lasted 8 years.
A rubber cover that was cracking and cutting, replaced with a tougher 80A polyurethane.
Chutes and catch basins exposed to UV, water and salt: the proof from 10-year tropical climate aging tests and 20-year immersion tests.
Non-driven rollers that were slipping and developing flat spots within weeks. A nitrile reformulated to 60 Shore A instead of 80: no more flat spots, better wringing and ×4 the service life.
Cuts in the rubber that were opening up and marking the film, solved with PolySorNip — a 60 Shore A polyurethane formulation that closes back up and lasts longer.
Hardness on spec, diameter on spec, no cracks — and the fabric was coming out darker in the center. The roller was deflecting under load: a parabolic crown restored uniform pressure.
A part bought from the European machine builder, worn at the film edges. Core refurbished, material matched to the wear mode and crown profile revised: service life doubled.
Tell us about the roller or the wheel that is giving you trouble: we analyze the wear and propose the right material for your application.
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