The RM-MGBD-HF is a two-jaw miniature electric gripper in the RobustMotion SoftForce® precision force-control series (also called a force-control electric gripper). With force-control accuracy down to ±0.01N, it performs closed-loop force control with real-time gripping force feedback while capturing force–position–time data to generate process curves. Stroke is 13mm, repeatability ±0.02mm and fastest open / close time 0.25 s; the closed-loop gripping force range spans 0.02–15N depending on sensor range. It is suited to pick-and-place of fragile, high-value workpieces such as packaged chips, micro optical lenses and precision components. Used with the RM-CEUF / RM-CEMF controllers, it supports EtherCAT, PROFINET, CC-LINK and Modbus TCP / RTU.
- Small size, high output
- High-speed opening/closing
- Soft gripping
- Workpiece-drop detection
Models and Specifications
| Item | RM-MGBD-10-14-S-HF | RM-MGBD-10-14-L-HF |
|---|---|---|
| Size code | 10 | |
| Spec | 14 | |
| Body length | S (short) | L (long) |
| Stroke (mm) | 13 | |
| Closed-loop gripping force range (N) | 0.02 ~ 5 (HF10) / 0.2 ~ 5 (HF50) | 0.02 ~ 10 (HF10) / 0.2 ~ 15 (HF50) |
| Repeatability (mm) | ±0.02 | |
| Fastest open / close time (s) | 0.25 / 0.25 | |
| Allowable load moment (N·m) | MP 1.9, MR 4.6, MY 2.7 | |
| Compatible controller | RM-CEUF, RM-CEMF | |
| Supported communication | RM-CEUF: EtherCAT, Modbus RTU, I/O; RM-CEMF: Modbus TCP, PROFINET, CC-LINK, Modbus RTU | |
| Rated voltage (V) | DC24 ±10% | |
| Rated current (A) | 2 | |
| Weight (kg) | 0.6 | 0.7 |
| Dimensions (mm) | 111 × 80 × 34 | 128 × 80 × 34 |
| Operating environment | 0–40°C, 85%RH or less (non-condensing) | |
| Protection rating | IP40 | |
Highlighted rows differ between models; values shared by all models are merged into one cell.
The closed-loop gripping force range depends on the selected sensor range: HF10 has an absolute force accuracy of ±0.01N, HF50 ±0.1N. Both models are the separate controller type (external controller) and must be used with an RM-CEUF or RM-CEMF precision force-control controller.
Model Code
RM－MGBD－[size code]－[spec]－[length]－[cable outlet position]－[cable outlet type & length]－[sensor range]－[absolute force accuracy]
| Field | Available codes |
|---|---|
| Size code | 10 |
| Spec | 14 |
| Length | S, L |
| Cable outlet position | 1 (side), 2 (bottom) |
| Cable outlet type & length | S0028 (adapter cable, 28cm) |
| Sensor range | HF10, HF50 |
| Absolute force accuracy | 0001 (±0.01N, HF10), 001 (±0.1N, HF50) |
Typical Applications
Pick-and-place of packaged semiconductor chips
With the HF10 sensor, the minimum closed-loop gripping force is 0.02N, so micro workpieces such as packaged chips can be gripped with very small, constant force. Real-time force feedback during gripping reduces the risk of crushing or dropping parts.
Transfer of micro optical lenses and precision components
A 13mm stroke, ±0.02mm repeatability and 0.25 s fastest open / close time suit the transfer and assembly of micro optical lenses and precision electronic components. Force–position–time data can be captured in real time or offline for process tuning and quality traceability.
High-value parts in 3C electronics
With body dimensions of 111 × 80 × 34mm (S) / 128 × 80 × 34mm (L) and a weight of 0.6–0.7kg, it mounts on the end of a robot arm or Cartesian mechanism to handle fragile parts in 3C electronics processes with strict force-control requirements. Choose the L type (up to 15N) when more gripping force is needed.
Frequently Asked Questions
What is a precision force-control electric gripper, and how is it different from a standard electric gripper?
A precision force-control electric gripper (also called a force-controlled gripper) has a force sensor built into the gripper, and the controller performs closed-loop control based on the actually measured force, so the gripping force is held precisely at the set value with real-time feedback. A standard electric gripper instead estimates force from motor current and sets gripping force in steps, without direct measurement. The RM-MGBD-HF offers force control accuracy of up to ±0.01N, a minimum closed-loop gripping force of 0.02N, and can record force-position-time curves, making it suitable for workpieces such as packaged chips and micro optical lenses that can be damaged by even slight deviations in gripping force.
What is the minimum gripping force of the RM-MGBD-HF?
With the HF10 sensor, the minimum closed-loop gripping force is 0.02N with an absolute force accuracy of ±0.01N, up to 5N for the S type and 10N for the L type; with the HF50 sensor, it starts from 0.2N with an absolute force accuracy of ±0.1N, up to 5N for the S type and 15N for the L type. Force is fed back in real time during gripping, making it suitable for fragile workpieces such as packaged chips and micro optical lenses; we still recommend confirming the usable force with trial grips on the actual workpiece.
What is the difference between the RM-MGBD-HF S type and L type?
Both have a 13mm stroke, ±0.02mm repeatability, a fastest open/close time of 0.25 s, and the same allowable load moment (MP 1.9, MR 4.6, MY 2.7 N·m). The differences are body length and output force: the S type measures 111 × 80 × 34mm and weighs 0.6kg; the L type measures 128 × 80 × 34mm, weighs 0.7kg and has a higher closed-loop gripping force limit (10N with HF10, 15N with HF50).
What can force-position-time data actually be used for?
The controller can capture force, position and time during gripping in real time or offline and generate visual process curves. In practice, this data can be used to set acceptance ranges, judge whether each grip is normal, find the optimal gripping force setting for the workpiece, and keep data for every workpiece as a basis for quality traceability.
Which controllers does the RM-MGBD-HF require, and which communication protocols are supported?
The RM-MGBD-HF is a separate controller type and requires an RM-CEUF or RM-CEMF precision force-control controller. The RM-CEUF supports EtherCAT, Modbus RTU and I/O; the RM-CEMF supports Modbus TCP, PROFINET, CC-LINK and Modbus RTU. Rated voltage is DC24V ±10%, rated current is 2A, and protection rating is IP40.
Who distributes the RM-MGBD-HF in Taiwan? Can you help with model selection?
Utrun-Tech Co.,Ltd. distributes RobustMotion products and provides selection evaluation, mechanism integration advice and post-installation technical support for the RM-MGBD-HF precision force-control electric gripper in Taiwan. When requesting a quote or selection support, please provide the workpiece material, dimensions, weight and required gripping force range so we can confirm the suitable model and sensor range.