Full specification
| Parameter | Value |
|---|---|
| Frame / size | Φ77 × 52.5 mm |
| Through-bore | Φ6 mm |
| Ratio | 20:1 |
| Rated power | 163 W |
| Rated speed | 130 rpm |
| Rated torque | 12 N·m |
| Peak torque | 36 N·m |
| Weight | 670 g |
| Supply / comms | 48 V · CANopen |
| Backlash | ≤12 arcmin reverse |
Source: EYOU (Yiyou Robot) selection manual 2026.08, p. 11 — figures approximate, confirmed at quotation. Figures verified November 2026 — confirm the exact variant against the datasheet issued with your order.
When this is the right choice
- 52.5 mm axial length at Φ77. That is shorter than RP50H despite carrying 2 N·m more — a real advantage in a stacked waist.
- Φ6 through-bore takes a proper harness, not just a signal pair.
- 163 W at 20:1 gives both speed and torque without a second stage.
- 36 N·m peak is enough shock tolerance for a base that runs into things.
When it is the wrong choice
- RP70H is only 5.8 mm longer and gives 17 N·m — unless length is critical, the H is the better buy.
- 20:1 is the lowest reduction in the RP series, so back-driving is easiest here — worst choice for a vertical holding axis.
- Backlash and no brake, as with the rest of the line.
Alternatives at a similar level
- EYOU RP70H — 17 N·m at 760 g, 58.3 mm long
- EYOU RP90L — 35 N·m at 1,075 g — the biggest frame
- EYOU PHU14H-70 — 9.6 N·m zero-backlash harmonic at 812 g
Quote this model
Model, quantity and destination is enough to start — we come back with price, availability and the datasheet.
RP70L FAQ
Why is the L frame shorter than the H?
Different motor stack inside the same Φ77 housing. The lower-power motor is shorter, which is why the L is 52.5 mm and the H is 58.3 mm despite sharing the gear stage.
Can it back-drive?
Yes, at 20:1 with 12 arcmin backlash it back-drives readily. That is useful for a hand-positioned axis and unacceptable for one that must hold under load.
How long does it take to ship?
Confirmed per order at quotation; the RP series figures are approximate in the catalogue and confirmed with the factory at the same time.
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