SSG48 adaptive electric gripper
A 400 g adaptive electric gripper with adjustable gripping force and a 48 mm stroke, for assembly and human-robot collaboration.
Project documentation
Before you build
Five answers, each linked to its source
What does it cost?
Not documented
No cost in the reviewed sources.
Can I sell what I build?
YesCommercial use OK
Hardware Apache 2.0 · Software Apache-2.0. Licensing source
What’s open?
4 of 6CAD: AvailableBOM: AvailablePCB: Not documentedCode: PartialSim: AvailableGuide: Available
Code partial · PCB not documented. All six files
Is it maintained?
Active
Latest activity Sep 27, 2026 · 19 commits in the last 52 weeks · 1 contributors Activity
01 / Under the shell
The specifications.
Hardware, build and software on one sheet. Every fact links to where we found it.
The SSG48 is an adaptive electric gripper based on Spectral micro BLDC drivers. Its gripping force can be adjusted from 5 N to 80 N, and it has a 48 mm stroke and a mass of 400 g. Mechanical files, firmware and gripper software are open source; the project provides a BOM and assembly instructions.
Hardware
- Actuators
- 1 · GBM5208-75 motor BOM.md
- Build
- 3D-printed · printable parts in the repository Documentation
- Adjustable gripping force
- 5 N to 80 N README
- Stroke
- 48 mm README
- Mass
- 400 g README
Building it
02 / The files behind the robot
What’s open.
Six parts of the build, each checked separately. Gaps stay visible.
| Part | Status | What’s there | License | Source |
|---|---|---|---|---|
| CAD | Available | Mechanical files are open source. | Not documented | Gripper STL parts/ |
| Bill of materials | Available | BOM lists components required to build the gripper. | Not documented | BOM.md |
| Electronics | Not documented | Not documented | Not documented | No source found |
| Code | Partial | Gripper software is open source; the README links to GUI software. | Not documented | README |
| Simulation model | Available | URDF and MJCF files. | Not documented | SSG48_gripper_description/ |
| Assembly guide | Available | Assembly instructions are provided. | Not documented | Assembly manual/ |
03 / Know before you build
Can you sell it?
YesCommercial use OK
The whole repository, design files included, is Apache 2.0. You can build, modify and sell robots based on it, as long as you keep the license and copyright notices.
- Hardware
- Apache 2.0
- Software
- Apache-2.0
04 / The upstream project
Is it maintained?
ActiveLatest activity Sep 27, 2026, 33 days before the snapshot
- Stars
- 184
- Forks
- 26
- Contributors
- 1
- Latest release
- V1.1 · Jun 2, 2024
Snapshot captured Oct 30, 2026. Recorded figures, not live metrics. Active: activity within 90 days of the snapshot. Quiet: within a year. Dormant: longer.
05 / Parts & kits
A head start.
Maker-listed sellers only. No affiliate links or paid placement.
MAKER’S COST
Not documented
No cost in the reviewed sources.
Kit availability is not documented in our reviewed sources.
06 / Side by side
Compare with other hands & grippers.
Other hands & grippers in the directory, most recently active first. Same sources, same rules.
| Robot | Cost | Open files | Can I sell it? | Runs on | Maintained | Stars |
|---|---|---|---|---|---|---|
| SSG48 adaptive electric gripperThis robotSource-Robotics | Not documented | 4 of 6 | YesHW Apache 2.0 · SW Apache-2.0 | ROS 2Python | ActiveSep 27, 2026 | 184 |
| YUBI GripperFrontier Research Center, Toyota Motor Corporation | Not documented | 3 of 6 | Yes, with creditHW CERN Open Hardware Licence Version 2 - Weakly Reciprocal (CERN-OHL-W v2) · SW CERN-OHL-W-2.0 | Not documented | ActiveSep 21, 2026 | 188 |
| Aero Hand OpenChestnut Robotics | $314complete kit | 6 of 6 | NoHW CC BY-NC-SA 4.0 · SW Apache-2.0 | ROS 2MuJoCoPython | ActiveSep 15, 2026 | 1,054 |
| Hands-on Tutorial: 3D Tactile Sensor Integration in Robotic Fingers for Smart ManipulationMilan Amighi, Constantin Scholz, and Bram Vanderborght (Brubotics – VUB & imec) | Not documented | 2 of 6 | Check firstHW not documented · SW not documented | ROS 2PythonESP32 | ActiveSep 4, 2026 | 7 |
| This robotSSG48 adaptive electric gripper | YUBI Gripper | Aero Hand Open |
|---|---|---|
| Cost | ||
| Not documented | Not documented | $314 |
| Can I sell it? | ||
| Yes | Yes, with credit | No |
| Open files | ||
| 4 of 6 | 3 of 6 | 6 of 6 |
| Runs on | ||
| ROS 2, Python | Not documented | ROS 2, MuJoCo, Python, ESP32 |
| Maintained | ||
| ActiveSep 27, 2026 | ActiveSep 21, 2026 | ActiveSep 15, 2026 |
Upkeep is measured against each robot’s own snapshot. Costs keep the maker’s scope, so check what each figure covers.
See them in the table07 / Follow the evidence
Open books.
Repository files are pinned to commit cb99f63. Websites and papers are listed with their review dates.
- 01README.md at cb99f63Reviewed Oct 30, 2026
- 02LICENSE at cb99f63Reviewed Oct 30, 2026
- 03BOM/BOM.md at cb99f63Reviewed Oct 30, 2026