- One System platform: a single quick-change adapter mounts any OnRobot product on any supported cobot — swap tools without re-configuring cabling.
- RG2 and RG6 are force-controlled parallel grippers with programmable stroke and grip force (no separate force sensor needed for basic compliance).
- 3FG15 is the only commercially available 3-finger cobot gripper — grips cylindrical parts (pipes, shafts, bottles) from the outside without a custom fixture.
- VGC10 electric vacuum generator — no compressed air, up to 10 kg hold, dual-circuit for two independent suction zones.
- Supports 30+ robot brands through One System adapters — broader compatibility than Robotiq.
Company and One System Platform
OnRobot was founded in 2015 in Odense, Denmark (the same city as Universal Robots) and has grown through a series of acquisitions — merging companies that made grippers, vision systems, screwdrivers, and force sensors into a single brand. As of 2026, OnRobot offers one of the broadest EOAT portfolios from any single vendor.
The One System quick-change is OnRobot's key differentiator. A robot is fitted once with the One System adapter (robot-side). Each OnRobot tool has the matching tool-side connector. Changing tools requires pushing a button and pulling the old tool — no tools, no screws. Communication (power, signals, data) passes through the quick-change connector automatically. This enables one robot cell to swap between a gripper, a vacuum tool, and a screwdriver without rewiring.
The One System compute module (installed on the robot wrist) handles all tool communication and provides a unified plugin interface for supported robots. OnRobot tools are UR+ certified and also support FANUC, ABB, Yaskawa, Kawasaki, Doosan, and others.
RG2 and RG6 Electric Grippers
The RG series are electric parallel grippers with programmable stroke and grip force. Unlike the Robotiq 2F series (underactuated), RG fingers are rigid parallel jaws driven by a single motor — more predictable on consistent part shapes, less adaptive on irregular shapes.
| Spec | RG2 | RG6 |
|---|---|---|
| Stroke | 0–110 mm | 0–160 mm |
| Max payload | 2 kg | 6 kg |
| Max grip force | 40 N | 120 N |
| Min grip force (programmable) | 3 N | 5 N |
| Gripper weight | 0.6 kg | 1.1 kg |
| Repeatability | ±0.1 mm | ±0.1 mm |
| IP rating | IP54 | IP54 |
| Price (September 2026) | ~$3,800 | ~$4,500 |
The RG2's minimum grip force of 3 N makes it suitable for delicate items — thin-walled plastic parts, fruit, pouches — that the Robotiq 2F-85 (minimum grip force ~15 N) would damage. The RG6 covers heavier parts up to 6 kg with a wider 160 mm stroke. Both use built-in proximity sensors to detect whether a part is present in the gripper — a simple form of part detection without additional hardware.
2FG7 Parallel Gripper
The 2FG7 is OnRobot's high-speed parallel gripper designed for machine tending and assembly where cycle speed matters. Unlike the RG series, the 2FG7 is actuated by a more powerful motor for faster closing.
| Spec | 2FG7 |
|---|---|
| Stroke (outer grip) | 5–72 mm (outer), 7–32 mm (inner) |
| Max grip force | 240 N |
| Closing speed | up to 80 mm/s |
| Gripper weight | 0.9 kg |
| IP rating | IP67 |
| Price (September 2026) | ~$3,200 |
The 2FG7's IP67 rating and 240 N force make it competitive with the Robotiq Hand-E for machine tending, at a lower price. Inner grip (bore gripping) is supported up to 32 mm — useful for gripping hollow cylindrical parts from the inside. Custom jaws are available for specific part geometries.
3FG15 Three-Finger Gripper
The 3FG15 is unique in the cobot EOAT market — a three-finger radial gripper that encircles cylindrical or round parts. Three symmetrically arranged fingers close around the part like a chuck. This makes it the best choice for pipes, shafts, bottles, cans, and any rotationally-symmetric object that is hard to grip with two parallel jaws.
| Spec | 3FG15 |
|---|---|
| Outer grip diameter range | 46–150 mm |
| Inner grip diameter range | 15–55 mm |
| Max payload | 15 kg |
| Max grip force (per finger) | 120 N |
| Gripper weight | 1.3 kg |
| IP rating | IP54 |
| Price (September 2026) | ~$5,500 |
The 3FG15 handles objects the 2F grippers cannot — pipes and tubes, round bottles, motor shafts, bearings, and anything spherical or rotationally symmetric. For machine tending of turned parts (shafts, slugs), the 3FG15 often provides more secure and repeatable gripping than a 2-jaw parallel gripper. The 15 kg payload is one of the highest in the cobot gripper market.
VGC10 Vacuum Gripper
The VGC10 is an electric vacuum generator and cup holder combined — no external compressed air or vacuum pump required. It houses two independent vacuum circuits, allowing two separate suction zones to be controlled independently (useful for dual-part picking or confirming part presence on each cup independently).
| Spec | VGC10 |
|---|---|
| Max holding force | up to 10 kg per circuit (total 20 kg with 2 circuits) |
| Vacuum circuits | 2 independent |
| Vacuum cup fitting | M5 thread (standard cups from Piab, Festo, SMC) |
| Weight | 0.65 kg |
| IP rating | IP54 |
| Price (September 2026) | ~$3,000 |
The dual-circuit design is useful in multi-part pick operations: the robot picks two parts simultaneously, then releases one to station A and the other to station B, without needing to return to a staging area. Part detection (vacuum level monitoring) is built in — the controller detects if a part is missing before the robot attempts to place it.
Other OnRobot Products
- Screwdriver SD: Electric screwdriver for M2–M6 screws, torque range 0.075–5 Nm. Counts turns, confirms torque — built-in screw-present detection. Popular in electronics assembly.
- Sander: Force-controlled belt/disc sander for deburring and surface finishing. Maintains constant force regardless of surface variation — adapts to part geometry without programming each point.
- HEX-E / HEX-H Force/Torque Sensor: Six-axis force/torque sensor, 200 Hz sample rate, ±200 N (HEX-E) or ±2000 N (HEX-H). Used for compliant assembly, polishing, testing. More expensive than Robotiq FT 300 but with higher payload capacity.
Strengths and Limitations
Strengths
- Broadest product range: grippers, vacuum, screwdriver, sander, force sensor — all on one platform
- One System quick-change: swap any tool in seconds without rewiring
- 3FG15 is unique — no comparable cylindrical gripper from Robotiq
- RG2 minimum grip force (3 N) handles delicate items Robotiq cannot
- Supports 30+ robot brands — wider compatibility than Robotiq
- VGC10 dual-circuit enables two-part simultaneous pick operations
Limitations
- RG series grip force (40–120 N) is lower than Robotiq 2F-85 (235 N) for heavy parts
- One System platform adds wrist weight — less suitable for robots already at payload limit
- Smaller online community than Robotiq — fewer tutorials and community support resources
- Acquisition history means product lines vary in maturity — some tools are stronger than others
- UR integration is good but not as seamlessly native as Robotiq's URCap in all use cases
OnRobot vs Robotiq
| Factor | OnRobot | Robotiq |
|---|---|---|
| Best parallel gripper for heavy parts | 2FG7 (240 N, IP67) | Hand-E (400 N, IP67) |
| Best for delicate/fragile parts | RG2 (3 N min force) | 2F-140 (lower min force than 2F-85) |
| Cylindrical part gripping | 3FG15 (unique) | Not available |
| Vacuum (no air) | VGC10 (dual circuit, 10 kg/circuit) | EPick (single circuit, 35 kg) |
| Tool changing (quick-swap) | One System (built-in) | Not standard |
| UR integration maturity | Good (UR+ certified) | Best in class (deepest URCap) |
| Non-UR robot compatibility | 30+ brands | ~10 brands |
Pricing Summary
| Product | Price (Sep 2026) | Best For |
|---|---|---|
| RG2 | ~$3,800 | Delicate / light parts, small electronics, food |
| RG6 | ~$4,500 | General handling up to 6 kg, wider parts |
| 2FG7 | ~$3,200 | Machine tending, IP67 environment, high-speed |
| 3FG15 | ~$5,500 | Cylindrical parts (pipes, shafts, bottles) |
| VGC10 | ~$3,000 | Flat surfaces, no compressed air, dual-zone pick |
| Screwdriver SD | ~$4,500 | M2–M6 assembly screwdriving with torque check |
Frequently Asked Questions
What is the One System quick-change and do I need it?
One System is OnRobot's tool-change system — one adapter on the robot wrist, one on each tool. You physically swap tools by hand in seconds. You need it if: your cell uses more than one type of EOAT (e.g., gripper for loading, vacuum for flat parts); or your robot needs to switch tasks between product runs. If you are running a single gripper permanently, you do not need the quick-change — tools can be mounted directly to the robot flange with a standard ISO 9409-1 adapter. Adding One System costs approximately $600–$1,200 for the adapter set.
How does the 3FG15 compare to a standard chuck on a machine?
A machine chuck is stiffer, faster (pneumatic), and far more repeatable for precision turning. The 3FG15 is a robot gripper for handling and transporting cylindrical parts — loading a lathe, picking from a tray, transferring shafts between stations. It is not designed to hold parts while they are being machined. For machine tending, the 3FG15 picks the raw part from a staging area, presents it to the machine chuck, and removes the finished part — the machine's own chuck does the clamping during cutting.
Can OnRobot tools be used on industrial robots (non-cobots)?
Yes — OnRobot supports most major industrial robot brands through robot-specific One System adapters. The communication method varies by robot (some use Ethernet/IP, some use a dedicated I/O module). Integration complexity is higher than on cobots — there is no drag-and-drop plugin equivalent to a URCap. OnRobot provides robot-specific integration guides and sample code for each supported platform. For FANUC, ABB, and Yaskawa industrial robots, expect 4–8 hours of integration work per gripper type.
Sources
- OnRobot RG2/RG6 Product Manual (2025)
- OnRobot 3FG15 Product Manual (2025)
- OnRobot VGC10 Product Manual (2025)
- OnRobot One System Technical Specification (2025)