The working numbers behind every belt decision: convert American PIW ratings to EP strength, size minimum drum diameters by the DIN 22101 method, estimate belt thickness, and get vulcanised splice dimensions to REMA TIP TOP practice — the same references our crews use.
Step length, fill strip and complete splice length — REMA TIP TOP practice with the M&W 50 mm fill standard. Pick your belt class, or enter strength manually (total or per-ply — the tool converts either way).
BASIS: 4-PLY / 440 PIW CLASS. EP NUMBER = TOTAL BELT BREAKING STRENGTH (EP630/4 = 630 N/MM TOTAL ≈ EP160 × 4 PLIES); EP TOTAL × 0.571 ≈ PIW AT SF 10. M&W PRESSES CURE 1,100 MM (≤1,000 WIDE) / 1,200 MM (WIDER) PER BITE.
All outputs are engineering guidance for planning and comparison. Final belt selection, pulley sizing and splice design are confirmed against the specific manufacturer's datasheet and site conditions — send us the application and we'll do it with you.