Know Which Part
Your Machine Needs
Parameter-level guides for mills running rotor spinning machines — written by our engineering team from real production data. No generic advice: every recommendation is tied to a fibre, a yarn count, a groove and a speed.
Published Guides
Two guides are live today. Between them they cover the seven decisions that determine whether a rotor cup performs or fails — fibre, yarn count, diameter, groove, coating, speed and machine model.
Rotor Cup Selection Guide
The 7-factor framework: fibre material, yarn count, diameter, groove design, coating technology, working speed and machine model — plus a coating comparison and a quick-reference selection matrix.
Read the guide →Rotor Cup Diameter Selection
31 mm to 46 mm in detail: which diameter suits which yarn count, fibre and speed, with the full diameter × fibre × groove matrix and diameter compatibility by machine brand.
Read the guide →In Preparation
These guides are being written from our own test and field data. If you need one of these answers now, send us your machine model and yarn parameters — we reply within 24 hours.
Groove Types Explained
V, U, T, G, GT, S, TT and GL — which groove profile controls which fibre behaviour, and where a narrow groove starts costing you breaks.
Coating Comparison
DN diamond vs nickel vs ceramic vs hard chrome: what each coating can take, why fully-automatic machines cannot run nickel, and how to read a wear pattern.
Speed Setting Guide
Why maximum speed is not working speed — the 80–90 % rule, the effect on rotor life, and how speed interacts with diameter and yarn count.
Machine Compatibility
Cross-reference tables for Schlafhorst Autocoro, Rieter R/BD, Saurer BD, Taitan, Jingwei and Rifa — which part number fits which machine generation.
Rotor Cup Lifetime
How many hours a rotor cup should actually run, what shortens it in practice, and the inspection interval that catches wear before it reaches the yarn.
Fibre-by-Fibre Matching
Cotton, polyester, viscose, blends, recycled and abrasive fibres — the diameter, groove and coating combination that each one needs to spin cleanly.
Not sure which guide applies to your machine?
Send us your machine model, yarn count and fibre — we will point you to the right specification and quote within 24 hours.
Get a Part Recommendation, Not a Catalogue
Tell us three things — machine model, yarn count and fibre — and we will reply with the exact rotor cup, groove and coating specification, plus a quotation, within 24 hours.