Head to head
FANUC R-1000iA/80F vs KUKA KR 70 R2100
A specification duel across payload, reach, precision, and footprint, with a plain read on which arm suits which job.
Foundry-rated arm for harsh handling duty
Compact heavy payload robot for demanding handling jobs
Specification duel
Green marks the stronger figure. Unconfirmed specs are shown but not scored.
The verdict
On paper these two are close, 80 kg against 70 kg and 2230 mm against 2101 mm of reach, near enough that the spec sheet alone will not decide it. They run different controllers, the FANUC R-1000iA/80F on the R-30iB Plus and the KUKA KR 70 R2100 on the KR C4, so whichever platform your team already programs and stocks parts for is a real tiebreaker. Mounting options differ: the FANUC R-1000iA/80F lists Floor and Ceiling, and the KUKA KR 70 R2100 lists Floor, Ceiling, Wall, and Inclined. Both are aimed at material handling and machine tending, with the KUKA KR 70 R2100 to press tending.
Choose this one when
Job fit first, then the controller and cell constraints that decide which arm you can actually install.
Choose the FANUC R-1000iA/80F when
- Sealed construction for foundry and washdown duty
- High payload with a compact base
- Fast acceleration for casting cycle times
- Heat-resistant cabling option available
Watch for
- Sealed variant carries a price premium over standard models
- Foundry duty shortens maintenance intervals on seals
Choose the KUKA KR 70 R2100 when
- High payload in a compact envelope
- Strong wrist torque for asymmetric loads
- Robust design for continuous multi shift use
- Good match for press tending
Watch for
- Floor mount only limits cell layout options
- Significant mass requires foundation planning
Controller ecosystem
Programming habits, spare parts, and pendant familiarity often decide the pick when payloads are close.
- Brand
- FANUC
- Controller
- R-30iB Plus
- Class
- 6-axis industrial
Service, spares, and pendant training for the FANUC R-1000iA/80F run through FANUC's R-30iB Plus stack.
- Brand
- KUKA
- Controller
- KR C4
- Class
- 6-axis industrial
Service, spares, and pendant training for the KUKA KR 70 R2100 run through KUKA's KR C4 stack.
These arms run different controllers (R-30iB Plus vs KR C4). If your team already programs one of them, retraining programmers and stocking a second set of spares usually costs more than a small payload or reach advantage on paper.
Mounting, footprint, and mass
How the arm can be oriented in the cell, and how much mass you have to mount.
| Field | FANUC R-1000iA/80F | KUKA KR 70 R2100 |
|---|---|---|
| Mounting | Floor and Ceiling | Floor, Ceiling, Wall, and Inclined |
| Robot mass | 620 kg | 536 kg |
| Protection (IP) | IP67 wrist & J3 arm / IP54 body (IP56 optional) | IP65 body / IP67 in-line wrist |
Heavier arms want stiffer bases and more clearance around the swept volume, and they push freight and rigging costs up on the install. IP ratings only cover the section they name, so a wrist-only rating protects the wrist and nothing else; check the body rating separately before you commit the arm to a washdown or dusty cell.
Application fit
Where each arm is aimed, based on the applications listed on its robot page.
Both pages list material handling, machine tending, and palletizing, with the differences below.
FANUC R-1000iA/80F covers
KUKA KR 70 R2100 also covers
Speed and cycle-time planning
Speed is rarely a single datasheet number across brands. Use payload, reach, and class as the planning frame, then confirm cycle time in a path study.
The FANUC R-1000iA/80F is a 6-axis industrial arm rated 80 kg at 2230 mm with ±0.03 mm repeatability. The KUKA KR 70 R2100 is a 6-axis industrial arm rated 70 kg at 2101 mm with ±0.05 mm. Class changes how speed shows up in a cell: collaborative arms slow down near people and can speed up in a guarded mode, while industrial arms run at rated speed inside a fence or scanner field. Which arm cycles faster on your part depends on the path, the payload, and the safeguarding, so confirm the takt with a path study before you quote it.
Common questions
- Which has more payload, the FANUC R-1000iA/80F or the KUKA KR 70 R2100?
- The FANUC R-1000iA/80F has more payload at 80 kg versus 70 kg.
- Which reaches farther?
- The FANUC R-1000iA/80F has more reach at 2230 mm versus 2101 mm.
- Which is more precise?
- The FANUC R-1000iA/80F holds tighter repeatability at ±0.03 mm.
- Should I choose the FANUC R-1000iA/80F or the KUKA KR 70 R2100?
- Match the pick to the job. The FANUC R-1000iA/80F is a 6-axis industrial arm at 80 kg and 2230 mm. The KUKA KR 70 R2100 is a 6-axis industrial arm at 70 kg and 2101 mm.
- Do the FANUC R-1000iA/80F and KUKA KR 70 R2100 use the same controller?
- No. The FANUC R-1000iA/80F uses R-30iB Plus and the KUKA KR 70 R2100 uses KR C4.
- How do the IP ratings compare?
- The FANUC R-1000iA/80F is rated IP67 wrist & J3 arm / IP54 body (IP56 optional). The KUKA KR 70 R2100 is rated IP65 body / IP67 in-line wrist. Check wrist versus body coverage before washdown or dusty cells.