JSM

For Schlafhorst Autocoro

Rotor Complete & Rotor Spindle for Schlafhorst Autocoro | SE7–SE20 | JSM
Schlafhorst Autocoro · SE7–SE20 · 50 Models

Rotor Complete Assemblies for Schlafhorst Autocoro

Precision replacement rotor complete assemblies (rotor cup + spindle, pre-balanced) for Autocoro 240 / 288 / 312 / 360 / 480 and Autocoro 11. Rotor spindles available separately. G · T · TT · S · U · GL grooves, BD boronized or DN diamond coating.

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50 Models
Rotor complete range
Ø 26–56 mm
Groove diameter range
HV 8000–10000
DN diamond coating
24h
Engineer response
JSM rotor complete assembly G 533 BD for Schlafhorst Autocoro SE11 SE12
Typical Applications

Which Application Are You Spinning?

Match your fibre type to the right groove section below, then jump straight to the model tables.

100% Cotton

Ne 16–40 rotor spinning. G and T grooves for standard and fine counts.

Polyester / Viscose

Blended yarn applications with S and U grooves for stable fibre guidance.

Recycled Fibers

Open-end recycled yarns — GL and U grooves handle short, high-impurity fibre.

High-Speed Autocoro

Stable running performance at 60,000–120,000 rpm with DN coated rotors.

Groove Type Guide

Six Grooves, One Clear Yarn-Range Logic

Rotor groove geometry directly affects fibre collection, yarn strength and spinning stability. Yarn ranges per JSM specification data.

GrooveProfileYarn Range (Ne)Typical Use
GStandard16–40Cotton, medium to fine yarns
TNarrow16–40Fine yarns
TTExtra narrow16–40Compact, fine yarns
SSpecial16–40Blends, special fibres
UGeneral purpose10–30Medium-coarse yarns
GLLarge3–16Coarse yarns, large-diameter rotors

Reading the model code: the last two digits are the rotor diameter in millimetres — G 528 BD means a G-groove rotor of Φ28 mm with BD boronized coating. The first digit (528 → 5) is the bearing series: 1 = SE7/SE8, 3 = SE9/SE10, 5 = SE11/SE12, 6 = SE20.

Model Code Anatomy

Type Number Instruction — Per Schlafhorst Catalogue P.18

Schlafhorst designates every rotor in the T533D format: groove shape + bearing code + groove diameter + coating. JSM follows the same logic.

Rotor model code anatomy — Schlafhorst format T533D vs JSM format G 528 BD Breakdown of the Schlafhorst catalogue code and the JSM model code into groove, bearing, diameter and coating segments.Schlafhorst catalogue format — T 5 33 D T Groove shape groove type 5 Bearing code 1 · 3 · 5 · 6 33 Groove Ø 33 mm diameter, mm D Coating diamond coated Bearing code → machine platform Bearing 1 SE7 / SE8 Bearing 3 SE9 / SE10 Bearing 5 SE11 / SE12 Bearing 6 SE20 / A8–A11 JSM model code — G 528 BD G Groove shape G · T · TT · S · U · GL 528 Rotor specification 5 = bearing · 28 = Ø mm BD Coating BD boronized · DN diamond
1

Groove Shape

G cotton · T / TT fine yarn · S blends · U general · GL coarse. The groove defines your yarn count range.

2

Spec Number

First digit = bearing series (1, 3, 5, 6) → machine platform. Last two digits = groove diameter in mm.

3

Coating

BD boronized (standard) or DN diamond (HV 1000-1200, premium). Bearing series guide →

Selection Guide

How to Choose the Correct Rotor

Four inputs define the right rotor for your machine. Answer them in order, or send us your current rotor and we confirm the model within 24 hours.

1

Machine

Identify your platform — SE7 / SE8 / SE9 / SE10 / SE11 / SE12 / SE20 — to lock the bearing series.

2

Groove

Match the groove to your fibre: G cotton, T/TT fine, S blends, U general, GL coarse.

3

Yarn count

Confirm your target count (Ne 10–40+) — each groove covers a specific Ne range.

4

Coating

BD boronized for standard spinning; DN diamond for recycled fibre and maximum service life.

Send your current rotor photo or model code — we identify the compatible replacement for your Autocoro machine within 24 hours.

SE11 / SE12 · Bearing Code 5

For Schlafhorst Autocoro SE11 & SE12

Autocoro 288 / ACO 312 / ACO 360 / ACO 480 series · 15 rotor models · G, S, T, TT grooves · BD coating

ModelGrooveMachineYarn RangeCoating
G 528 BDG Standard · CottonSE11 / SE12Ne 16–40BD Boronized
G 530 BDG Standard · CottonSE11 / SE12Ne 16–40BD Boronized
G 531 BDG Standard · CottonSE11 / SE12Ne 16–40BD Boronized
G 533 BDG Standard · CottonSE11 / SE12Ne 16–40BD Boronized
S 533 BDS Special · BlendsSE11 / SE12Ne 16–40BD Boronized
S 540 BDS Special · BlendsSE11 / SE12Ne 16–40BD Boronized
S 546 BDS Special · BlendsSE11 / SE12Ne 16–40BD Boronized
T 533 BDT Narrow · Fine yarnSE11 / SE12Ne 16–40BD Boronized
T 534 BDT Narrow · Fine yarnSE11 / SE12Ne 16–40BD Boronized
S 536 BDS Special · BlendsSE11 / SE12Ne 16–40BD Boronized
T 536 BDT Narrow · Fine yarnSE11 / SE12Ne 16–40BD Boronized
T 540 BDT Narrow · Fine yarnSE11 / SE12Ne 16–40BD Boronized
TT 540 BDTT Extra narrowSE11 / SE12Ne 16–40BD Boronized
T 546 BDT Narrow · Fine yarnSE11 / SE12Ne 16–40BD Boronized
TT 546 BDTT Extra narrowSE11 / SE12Ne 16–40BD Boronized

DN diamond coating (HV 1000-1200) available on request for all models above.

SE9 / SE10 · Bearing Code 3

For Schlafhorst Autocoro SE9 & SE10

Autocoro 312 / 360 series · 13 rotor models · G, T, TT, U, S grooves · BD coating

ModelGrooveMachineYarn RangeCoating
G 331 BDG Standard · CottonSE9 / SE10Ne 16–40BD Boronized
T 331 BDT Narrow · Fine yarnSE9 / SE10Ne 16–40BD Boronized
G 333 BDG Standard · CottonSE9 / SE10Ne 16–40BD Boronized
T 333 BDT Narrow · Fine yarnSE9 / SE10Ne 16–40BD Boronized
G 336 BDG Standard · CottonSE9 / SE10Ne 16–40BD Boronized
T 336 BDT Narrow · Fine yarnSE9 / SE10Ne 16–40BD Boronized
TT 336 BDTT Extra narrowSE9 / SE10Ne 16–40BD Boronized
T 340 BDT Narrow · Fine yarnSE9 / SE10Ne 16–40BD Boronized
TT 340 BDTT Extra narrowSE9 / SE10Ne 16–40BD Boronized
T 346 BDT Narrow · Fine yarnSE9 / SE10Ne 16–40BD Boronized
TT 346 BDTT Extra narrowSE9 / SE10Ne 16–40BD Boronized
U 346 BDU General purposeSE9 / SE10Ne 10–30BD Boronized
S 356 BDS Special · BlendsSE9 / SE10Ne 16–40BD Boronized

DN diamond coating (HV 1000-1200) available on request for all models above.

SE7 / SE8 · Bearing Code 1

For Schlafhorst Autocoro SE7 & SE8

Autocoro 240 / 288 series · 10 rotor models · T, G, U, S grooves · BD coating

ModelGrooveMachineYarn RangeCoating
T 133 BDT Narrow · Fine yarnSE7 / SE8Ne 16–40BD Boronized
G 133 BDG Standard · CottonSE7 / SE8Ne 16–40BD Boronized
T 136 BDT Narrow · Fine yarnSE7 / SE8Ne 16–40BD Boronized
U 136 BDU General purposeSE7 / SE8Ne 10–30BD Boronized
G 140 BDG Standard · CottonSE7 / SE8Ne 16–40BD Boronized
T 140 BDT Narrow · Fine yarnSE7 / SE8Ne 16–40BD Boronized
U 140 BDU General purposeSE7 / SE8Ne 10–30BD Boronized
T 146 BDT Narrow · Fine yarnSE7 / SE8Ne 16–40BD Boronized
U 148 BDU General purposeSE7 / SE8Ne 10–30BD Boronized
S 156 BDS Special · BlendsSE7 / SE8Ne 16–40BD Boronized

DN diamond coating (HV 1000-1200) available on request for all models above.

SE20 · Bearing Code 6

For Schlafhorst Autocoro SE20 — A8 / A9 / A10 / A11

Autocoro 480 / ACO 8 · Autocoro 11 series · 12 rotor models · G, GL, T, TT grooves · BD coating

ModelGrooveMachineYarn RangeCoating
G 626 BDG Standard · CottonSE20 (A8–A11)Ne 16–40BD Boronized
G 628 BDG Standard · CottonSE20 (A8–A11)Ne 16–40BD Boronized
GL 628 BDGL Large · Coarse yarnSE20 (A8–A11)Ne 3–16BD Boronized
G 630 BDG Standard · CottonSE20 (A8–A11)Ne 16–40BD Boronized
GL 631 BDGL Large · Coarse yarnSE20 (A8–A11)Ne 3–16BD Boronized
T 633 BDT Narrow · Fine yarnSE20 (A8–A11)Ne 16–40BD Boronized
T 634 BDT Narrow · Fine yarnSE20 (A8–A11)Ne 16–40BD Boronized
T 636 BDT Narrow · Fine yarnSE20 (A8–A11)Ne 16–40BD Boronized
T 640 BDT Narrow · Fine yarnSE20 (A8–A11)Ne 16–40BD Boronized
TT 640 BDTT Extra narrowSE20 (A8–A11)Ne 16–40BD Boronized
T 646 BDT Narrow · Fine yarnSE20 (A8–A11)Ne 16–40BD Boronized
TT 646 BDTT Extra narrowSE20 (A8–A11)Ne 16–40BD Boronized

DN diamond coating (HV 1000-1200) available on request for all models above.

Coating Options

BD Boronized or DN Diamond — Pick by Fibre & Budget

Coating choice is the single biggest factor in rotor lifespan. DN diamond pays for itself on abrasive fibres and high-speed positions.

Premium

DN Diamond Coating

Hardness HV 1000-1200

3–5 times the service life of standard coatings. Recommended for recycled fibres and high-impurity blends. Reduces cotton deposit and stabilises yarn CV% between changes. Diamond coating technology of US origin, applied by JSM.

BD Boronized

Cost-effective hardening

Boronizing hardens the rotor surface for improved wear resistance at a lower cost — a practical choice for mills replacing rotors in high volume on standard cotton counts.

JSM is one of the very few manufacturers worldwide producing rotor assemblies that match original quality — every assembly 100% dynamically balanced and dimensionally identical to OEM, at 40–60% lower cost.

FAQ

Frequently Asked Questions

What does a rotor model code like G 528 BD mean?
JSM follows the Schlafhorst catalogue convention. G is the groove shape (G cotton, T/TT fine yarn, S blends, U general, GL coarse). 528 is the rotor specification: the first digit (5) is the bearing code, the last two digits (28) are the groove diameter in millimetres. BD means boronized coating; DN means diamond coating.
Which rotor fits my Autocoro — SE7, SE9, SE11 or SE20?
Match the bearing code in the model number to your machine platform: bearing 1 fits SE7/SE8, bearing 3 fits SE9/SE10, bearing 5 fits SE11/SE12, bearing 6 fits SE20 (Autocoro A8–A11). If unsure, send your machine model and the old rotor photo or code — we confirm compatibility within 24 hours.
What is the difference between BD and DN coating?
BD (boronized) is the standard wear-resistant coating, ideal for regular cotton and blended yarns. DN (diamond, HV 1000-1200) is a premium diamond coating with 3–5 times the service life of standard coatings, recommended for recycled fibres and high-impurity blends.
Can I order the rotor spindle separately from the rotor complete?
Yes. A rotor complete assembly consists of the rotor cup, the rotor spindle (shaft) and the bearing. We supply complete assemblies or individual spindles. If your existing rotor is worn on the cup only, ordering the complete assembly is usually more cost-effective.
What rotor speeds do JSM rotors support?
JSM rotor assemblies run in the 60,000–120,000 rpm range depending on the bearing series and machine platform. Every assembly is 100% dynamically balanced before delivery for stable high-speed running and low end-breakage rates.
How do I confirm compatibility before ordering?
Send us your machine model (e.g. Autocoro 312, SE12), the yarn count you spin (Ne), and a photo or the model code of your current rotor. Our engineers cross-check the groove, bearing series and diameter, and confirm the matching JSM model within 24 hours.

Need the Correct Schlafhorst Rotor for Your Machine?

Send your machine model, current rotor photo or model code. Our engineering team confirms the groove, bearing series and diameter — and quotes within 24 hours.

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