Full specification
| Parameter | Value |
|---|---|
| Frame / size | Φ100 |
| Ratio | 101:1 (single ratio) |
| Rated torque @2000 rpm input | 169 N·m |
| Start–stop peak | 411 N·m |
| Weight | 2.52 kg |
| Supply voltage | 24–80 V |
| Encoder | Absolute, integrated |
Source: Our current Ti5 datasheet — being re-verified against the latest Ti5 catalogue. Figures verified November 2026 — confirm the exact variant against the datasheet issued with your order.
When this is the right choice
- 169 N·m at 2.52 kg. The nearest harmonic is EYOU PHU32H-142 at 5,650 g for the same rated torque — less than half the mass.
- 411 N·m start–stop covers a waist or a heavy hip on a full-size humanoid.
- 24–80 V input — runs on a 72 V pack where most harmonics stop at 48.
- Φ100 is compact for 169 N·m. It leaves room in a hip where a Φ142 harmonic does not.
When it is the wrong choice
- No brake. On a waist or hip that is the first objection a reviewer will raise, and there is no published answer to it on this frame.
- Thin documentation. Body length, bore and inertia are not on our datasheet — we request the drawing before quoting.
- No torque sensor, so a compliant waist needs an external sensor or a series-elastic element.
- Numbers still being re-verified against the current Ti5 catalogue.
Alternatives at a similar level
- Ti5 RI80-97-PRO-S — 84 N·m at 1.5 kg — one frame down
- EYOU RHU32H-120 — 124–169 N·m harmonic with a through-bore, 4,080 g
- Crabnova RBV3 R120 — Robot-grade with brake and torque sensor
Quote this model
Model, quantity and destination is enough to start — we come back with price, availability and the datasheet.
RI100-120-PRO-S FAQ
Is this really 169 N·m at 2.52 kg?
That is our current datasheet figure and we are re-checking it against the latest Ti5 catalogue before we quote. It is far enough ahead of every harmonic at the same torque that a drawing confirmation is the responsible next step, and that is what the quotation includes.
Harmonic or this for a waist?
If the waist has to be torque-controlled or hold position on power-off, a harmonic frame with a brake (RHU32H-120, RHU40H-130) is the safer choice regardless of mass. If it only has to move and hold under power, this is 3 kg lighter.
How long does it take to ship?
Confirmed per order at quotation, with the drawing and specification confirmation first.
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