B300DN Solid Ring — B300 Tooth Profile Clothing Ring
One-piece clothing ring in the B300 tooth profile with a DN diamond-nickel working surface (HV 1000-1200), supplied for Schlafhorst Autocoro SE8-SE20 and Rieter R40/R60/R66 (NG64). B300 is one of the newer profiles in the range — send us your fibre mix and we confirm the fit for your line.
B300DN — Complete Specifications
B300 sits in the current generation of JSM solid ring profiles. Where the fibre recommendation for a profile is still being documented, we confirm it against your own fibre mix rather than publish a general claim.
Why B300 for Modern High-Speed OE Lines
B300 is one of the newer tooth profiles in the JSM solid ring range, supplied DN coated across the Schlafhorst and Rieter platforms. Its fibre recommendation is confirmed per mill: tell us the mix on your line and we match the profile before quoting.
Why we confirm B300 against your fibre mix instead of publishing a general claim
Tooth profile selection is decided by fibre, yarn count and combing roller speed together, and a general recommendation published without knowing your schedule is worth less than no recommendation at all. Give us your fibre mix, count range and machine model, and we will confirm whether B300 is the right profile for the ring position you are replacing.
DN diamond-nickel surface
HV 1000-1200. Diamond co-deposited in a nickel matrix for wear resistance and low friction on the tooth tips.
One-piece concentricity
Ring and tooth band machined as a single part, so the profile runs true at high combing roller speed.
Schlafhorst and Rieter
Supplied in both platform configurations, so one profile can cover a mixed machine hall.
Fibre matching included
Send your fibre mix and count range with the enquiry — the profile confirmation comes back within 24 hours.
What DN Means on a JSM Solid Ring
Every ring in this range carries a DN working surface: diamond grit co-deposited inside a nickel matrix, HV 1000-1200. The earlier plain-nickel tooth types have been withdrawn — catalogue numbers ending in N are no longer produced or quoted.
Diamond grit is co-deposited inside a nickel matrix rather than simply plated on top. The result is a hard, low-friction working surface that holds its tooth form far longer than plain nickel on abrasive fibre, keeps the tooth tips from loading up with fibre and dust, and holds concentricity across a longer service interval.
The earlier plain-nickel tooth types are no longer produced, and catalogue numbers ending in N are not quoted. Order the DN version of the same tooth profile instead: identical tooth geometry and fit, with the diamond-nickel working surface. If you are holding stock of an N-type ring, send us the number and we will cross it to the current DN equivalent.
Which Machines Use B300DN?
The same tooth profile is supplied in both machine platforms. The part number differs, so quote your machine model with the enquiry and we supply the matching configuration.
Running Taitan, Jingwei, Rifa or Saurer machines? The solid ring range in this catalogue is built for the Schlafhorst and Rieter platforms listed above, so we will not claim it fits a machine we have not checked. Send us the machine model and the part you are replacing and we will confirm whether a ring from this range fits, or supply the correct opening-roller component.
What to Spin with B300DN
B300 is quoted against your own production data. The three lines below show what we need from you, and what we will not do — publish a fibre recommendation we cannot stand behind.
All 7 Tooth Profiles — Where B300DN Sits
Every profile in the range is DN coated and covers Schlafhorst Autocoro SE8–SE20. B-series profiles are cotton and natural-fibre oriented, S-series profiles are built for synthetics. Your current model is highlighted.
| Tooth Profile | Coating | Fibre Direction | Page |
|---|---|---|---|
| B174 / B174-2 | DN | Carded cotton and flax blends (best); combed cotton, viscose (OK); not for P/C or synthetic blends | View page |
| B187 | DN | Combed cotton, viscose (best); blends (OK); not for carded cotton, acrylic or flax | On request |
| B300 | DN | Newer tooth type — application data under confirmation | View page |
| OB20 (B20) | DN | Carded and combed cotton, flax blends (best); viscose (OK); not for pure synthetic fibres | View page |
| OS21 (S21) | DN | Polyester, viscose, acrylic and P/C blends (best); cotton (OK); not for flax | View page |
| S43 | DN | Polyester, P/C and P/V blends (best); not for cotton, viscose, acrylic or flax | On request |
| OK61 | DN | Newer tooth type — application data under confirmation | On request |
Rieter R40 / R60 / R66 machines take the same tooth profile in a separate NG64 configuration. It is not interchangeable with the Schlafhorst ring even though the tooth geometry looks identical, so quote your machine model with the enquiry and we will supply the matching configuration.
B-series tooth types suit cotton and natural fibres; S-series tooth types suit synthetics. Where a profile needs its fibre recommendation confirmed against your own schedule we say so rather than publish a general claim. Not sure which profile you are running? Send a photo of the worn ring and the machine model and we will identify it.
B300DN — Frequently Asked Questions
The questions mills ask most often about this ring. Anything not covered here, ask directly — we answer with the part number and the price, not a brochure.
What is the B300 tooth profile used for?
Which machines does B300DN fit?
What does DN mean?
I am running a profile I cannot identify. Can you match it?
Can you supply a sample before I commit to 300 pcs?
Send Us Your Machine Model and Fibre Mix
Pre-filled: B300DN · B300 tooth profile
Tell us your machine model, the ring position and your fibre mix. We confirm the profile, price and lead time within 24 hours. Sample orders welcome.
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