Prosino’s steel conical spinning rings represent the company’s historic core competence, produced continuously since 1946. Manufactured from core‑hardened 100Cr6 steel and finished with a mirror‑polished running path, these rings are engineered to perform under alternating traveller loads and extended working cycles in wool, acrylic, and long‑staple yarn spinning.
Steel Conical Spinning Rings
Traditional, high‑precision conical rings designed for long‑staple spinning excellence.- Mirror‑polished surface for ultra‑smooth running
- 4+4 lubrication system for consistent oil delivery
- Decades‑proven performance across major OEM machines

Why choose Prosino steel conical spinning rings?
- 4+4 lubrication system ensures precise oil release every 45°
- Mirror‑polished surface for extremely smooth traveler motion
- Long service life with 5 to 20 years depending on fiber type
- OEM‑trusted by ZINSER, COGNETEX, GAUDINO and others
Key features
- Hardened high‑chrome bearing steel
- Mirror‑polished running path
- Precise conical/concave traveler path
- Suitable for long‑staple spinning machines (wool, acrylic)
- Compatible with major existing OEM (Zinser, Cognetex, Gaudino, etc.)
Technical data
| Parameter | |
|---|---|
| Material | 100% European 100Cr6 ball bearing steel |
| Ring diameter range | Inner diameter from 42 to 115 mm |
| Flange profile | Ultra-precise conical/concave running path |
| Lubrication system | 4+4 micro-holes lubrication scheme |
| Ring treatments | Core-hardened heat treatment |
| Surface coating | Mirror-polished |
| Compatible machines | Major existing spinning machines |
Applications
- Wool and acrylic long-staple spinning
- Machines requiring high lubrication precision
- High traveler loads in long production cycles
Frequently Asked Questions
What is the lifetime of Prosino's steel conical rings?
The lifetime of Prosino's steel conical rings can go from a minimum of 5 years with acrylic high tenacity yarn up to 15-20 years with pure wool fine counts.
What are the advantages of the 4+4 lubrication system?
Steel conical rings have a tough job: they must allow just the right amount of lubrication—not too much, not too little. The “4+4” micro-hole lubrication system makes this possible. Every 45°, the traveler receives the perfect dose of oil, ensuring smooth operation for years. 100% carefully selected wool wicks continuously deliver the right amount of oil to the ring surface, while the mirror-polished rings do the rest.
What is the maximum operating speed for Prosino's steel conical rings?
Please refer to the following guidelines for details.
Is there a price difference between H 9.1 and H 11.1?
Prosino can offer conical rings of this height at the same price as H 11.1.
What is the smallest ring diameter that Prosino can produce?
There are no limits. The smallest ring produced for super-fine counts has an inner diameter of 42 mm.




