C341/Tr-D Rotor Complete
Application-specific Tr rotor complete for counts confirmed per order on the Rieter R923 and R35 semi-automatic platform. D — diamond coating over the rotor substrate. T013 bearing rated to 110,000 rpm with a recommended ceiling of ≤ 90,000 rpm — dimensionally identical to the original, at 40–60% below OEM price.
C341/Tr-D — Complete Specifications
All measurements in millimetres. Every rotor complete assembly is 100% dynamically balanced on our own balancing line before shipment.
Why Tr Groove for Application-Specific Spinning
The Tr groove does not carry a fixed, published count window in our catalogue data. It is matched to the fibre and count of the mill’s own order, and our engineers confirm the pairing before the order is released. Machine side and count side are confirmed as one selection, which is what keeps the rotor matched to the job.
Tr Groove — Yarn Count Range
Tr is specified against the application: give us the fibre and the target count and we confirm the groove before the order is released. Groove and cup size are confirmed together when the order is placed.
Tr Groove — Count Confirmed Per Order
Because the usable count window of the Tr groove is not published as a fixed band, this rotor is specified against the application. Send the fibre type, the target Ne and the spinning position, and our engineers confirm the correct groove, cup size and coating — the order is released only after that check. The rotor still fits a defined bearing group, so the machine side is never in question.
Less Risk in the Change-Over
Confirming the pairing up front avoids the trial-and-error that otherwise costs mill time after installation.
Coating Chosen With the Rotor
The surface coating is confirmed together with the rotor selection, so abrasive fibre and high speeds are planned for.
Defined Bearing Group
The rotor still belongs to a specific bearing group, so machine compatibility is unambiguous.
Quotation Follows the Selection
Lead time and price follow the confirmed selection rather than an assumed one.
What D Means: Base and Working Surface
The trailing letters of the model code are two independent codes, not one word: B is the substrate, D is the working surface. The diamond face is the reason this rotor holds its groove profile on long runs. Confirm your fibre mix and speed with us before a bulk order. Every assembly is 100% dynamically balanced before it leaves the balancing line.
B = boronized (boron-steel) substrate. A diamond film is only microns thick, so the steel underneath decides whether it survives: a soft substrate deforms under fibre and grit impact and the film cracks and spalls off. The boronized base is the hardening step that keeps the diamond layer intact. This code does not carry the B step; it is the -BD- variant that pairs the diamond layer with the boronized base.
D = diamond top layer, grown on the prepared substrate as a micron-scale film. It takes the fibre and grit contact directly, which is where the wear resistance, the friction coefficient of 0.05–0.1 and the anti-stick behaviour come from that hold the groove profile over long runs. Diamond coating technology of US origin, applied on JSM’s own treatment line.
Which Rieter Machines Use C341/Tr-D?
On semi-automatic machines the bearing decides compatibility: T013 here, on the Rieter R923 and R35 platform.
What to Spin with C341/Tr-D
Application guidance for C341/Tr-D on the semi-automatic side of the Rieter range; speeds and counts follow the Tr groove specification.
✓ Replacing a rotor at a known spinning position
✓ Buyers who want the selection checked before ordering
✓ Applications outside the standard published count bands
◇ Blends and speciality fibres — S groove
◇ Abrasive or high-impurity fibre — DN diamond coating
◇ Standard fine counts Ne 16–40 — T family, published window
→ TT: Extra narrow (Ne 16–40)
→ S: Special (Ne 16–40)
→ U: General purpose (Ne 10–30)
→ GL: Large (Ne 3–16)
→ G: Standard (Ne 16–40)
→ T: Narrow (Ne 16–40)
→ See all 9 Rieter R923 and R35 rotor models →
C341/Tr-D — Frequently Asked Questions
Answers to the questions buyers ask most often about this rotor. If yours is not listed, send it with your machine model and current rotor code — we reply within 24 hours.
Is C341/Tr-D compatible with my Rieter R923 and R35 machine?
What does the model code C341/Tr-D mean?
What yarn counts does the Tr groove suit?
What do the letters BD mean in the model code C341/Tr-D?
How much does an OEM-equivalent rotor save versus the original?
Can I order the rotor spindle or rotor cup separately?
Order C341/Tr-D Rotors
Pre-filled: C341/Tr-D · Rieter R923 / R35 · diamond coating
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