Head to head
KUKA KR 300 R2500 vs KUKA KR 500 FORTEC
A specification duel across payload, reach, precision, and footprint, with a plain read on which arm suits which job.
High payload robot for heavy parts and tooling
Very heavy payload robot for large component handling
Specification duel
Green marks the stronger figure. Unconfirmed specs are shown but not scored.
The verdict
The specs separate them here: the KUKA KR 500 FORTEC carries more, 500 kg to the KUKA KR 300 R2500's 300 kg. If precision drives the job, the KUKA KR 300 R2500 holds the tighter repeatability at ±0.06 mm. They run different controllers, the KUKA KR 300 R2500 on the KR C4 and the KUKA KR 500 FORTEC on the KR C5, so whichever platform your team already programs and stocks parts for is a real tiebreaker. Mounting options differ: the KUKA KR 300 R2500 lists Floor and Ceiling, and the KUKA KR 500 FORTEC lists Floor. Both are aimed at palletizing and material handling, with the KUKA KR 300 R2500 stretching to machine tending.
Choose this one when
Job fit first, then the controller and cell constraints that decide which arm you can actually install.
Choose the KUKA KR 300 R2500 when
- High payload with a manageable footprint
- Rigid arm structure for heavy tooling
- Good repeatability given its load class
- Established support network
Watch for
- Requires a reinforced foundation
- Cycle times drop as payload approaches rated maximum
Choose the KUKA KR 500 FORTEC when
- Very high payload capacity
- Stiff frame holds accuracy under heavy load
- Suited to multi shift heavy industry use
- Wide range of end of arm tooling support
Watch for
- Large footprint and mass need dedicated foundation work
- Not intended for light or high speed tasks
Controller ecosystem
Programming habits, spare parts, and pendant familiarity often decide the pick when payloads are close.
- Brand
- KUKA
- Controller
- KR C4
- Class
- 6-axis industrial
Service, spares, and pendant training for the KUKA KR 300 R2500 run through KUKA's KR C4 stack.
- Brand
- KUKA
- Controller
- KR C5
- Class
- 6-axis industrial
Service, spares, and pendant training for the KUKA KR 500 FORTEC run through KUKA's KR C5 stack.
These arms run different controllers (KR C4 vs KR C5). 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 | KUKA KR 300 R2500 | KUKA KR 500 FORTEC |
|---|---|---|
| Mounting | Floor and Ceiling | Floor |
| Robot mass | 1,120 kg | 2,385 kg |
| Protection (IP) | IP65 (robot & in-line wrist); IP67 foundry in-line wrist | IP65 |
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 palletizing, material handling, and press tending, with the differences below.
KUKA KR 300 R2500 also covers
KUKA KR 500 FORTEC 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 KUKA KR 300 R2500 is a 6-axis industrial arm rated 300 kg at 2496 mm with ±0.06 mm repeatability. The KUKA KR 500 FORTEC is a 6-axis industrial arm rated 500 kg at 2826 mm with ±0.08 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 KUKA KR 300 R2500 or the KUKA KR 500 FORTEC?
- The KUKA KR 500 FORTEC has more payload at 500 kg versus 300 kg.
- Which reaches farther?
- The KUKA KR 500 FORTEC has more reach at 2826 mm versus 2496 mm.
- Which is more precise?
- The KUKA KR 300 R2500 holds tighter repeatability at ±0.06 mm.
- Should I choose the KUKA KR 300 R2500 or the KUKA KR 500 FORTEC?
- Match the pick to the job. The KUKA KR 300 R2500 is a 6-axis industrial arm at 300 kg and 2496 mm. The KUKA KR 500 FORTEC is a 6-axis industrial arm at 500 kg and 2826 mm.
- Do the KUKA KR 300 R2500 and KUKA KR 500 FORTEC use the same controller?
- No. The KUKA KR 300 R2500 uses KR C4 and the KUKA KR 500 FORTEC uses KR C5.
- How do the IP ratings compare?
- The KUKA KR 300 R2500 is rated IP65 (robot & in-line wrist); IP67 foundry in-line wrist. The KUKA KR 500 FORTEC is rated IP65. Check wrist versus body coverage before washdown or dusty cells.