NGM12 Series Compact Electric Gripper
NGM12 Series Compact Electric Gripper (5 images/videos)
NGM20

NGM12 Series Compact Electric Gripper

Compact electric gripper with STM42M stepper servo, supports MODBUS RTU or CANopen.

Features

  • Small footprint
  • High clamping force (150N)
  • Lead screw transmission
  • Bus control

Models & Specifications

Specs as rows · Models as columns
SpecificationsNGM20F0
Communication MethodCANopen、RS485
Total Stroke20mm
Gripping Force150N
Rated Voltage24V
Rated Current1A
Body Length160×97.4×42.3mm

* Scroll horizontally within the table area when the content is wide.

Specifications

Unidirectional Stroke Time0.5s
Repeat Positioning Accuracy-
Backlash-
Transmission ModeLead screw + gripper jaws
Gripper Allowable Load TorqueMX:6Nm, MY:3Nm, MZ:3Nm
Input Power Voltage Range16-30V
Operating Temperature0℃~40℃
Operating Altitude<1000m
Special FeaturesFault diagnosis, fault reset, soft limit, parameter identification, online upgrade
DI (Digital Input)Quantity: 3; NPN input; Logic 1 signal: 5–24VDC input; Logic 0 signal: 0–2VDC input; Configurable function: Can be used as motion control signals.
DO (Digital Output)Quantity: 1; Output method: open-drain output; Maximum current: 100mA; Maximum voltage: 30VDC; Configurable functions: 1. General DO port; 2. Motor run/stop; 3. Target reached; 4. Alarm output (when the motor status meets the above conditions, the DO switching state changes).

Product Details

Product Overview

The NGM series integrated electric gripper is a high-performance, low-power stepper servo product. This product integrates the STM42M integrated stepper servo lead screw motor and the gripper gripper into one unit. It supports bus control via CANopen and RS485 communication,. It features a simple design, compact structure, small size, and high torque.

Advanced Drive Algorithm

Adopts FOC (field-oriented control) and SVPWM for smooth torque output, excellent low-speed performance and lower operating noise and vibration.

High Precision Encoder Feedback

Built-in 17-bit encoder (multi-turn absolute counting, automatic storage of power loss) provides real-time position and speed feedback for more accurate closed-loop control; multi-turn absolute counting and automatic position storage on power loss mean no re-homing is needed after power-up.

Multi-bus communication support

Supports Modbus, CANopen and RS485 communication, allowing quick connection to mainstream PLCs, motion controllers and host systems, with flexible networking and easy expansion.

Wide Voltage Input

Wide input voltage range of 16~30V, suitable for various power-supply environments and giving greater flexibility in system integration and retrofitting.

Rich control functions

Provides functions such as Fault Reset, Soft Limit, Parameter Identification, Settable Parameters, Gain Switching, Resonance Suppression, Low Frequency Suppression, Parameter Save Recovery, Online Upgrade; parameters are adjustable and gains can be switched, making on-site commissioning more efficient.

Reliable protection design

Protection class IP20: resistant to dust and splashing water, suitable for a wide range of industrial environments.

Downloads

NameTypeSizeUpdate DateDownload
NiMotion Robot Gripper Selection Guide
Selection Guide26.0MB2026-10-14
Integrated Electric Gripper Product Instruction Manual
User Manual7.2MB2026-10-15
Communication Manual – pmm60l/blm/stm-modbus
Communication Manual4.0MB2026-08-27
Communication Manual – pmm60l/blm/stm-CANopen
Communication Manual3.8MB2026-08-27
NGM20F0 Integrated Electric Gripper
Drawing7.2MB2026-10-15
NGM20F0 Electric Gripper Model
Model11.2MB2026-10-15

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FAQ

The positional accuracy of a stepper motor is about 3‑5% of the step angle, and it does not accumulate errors.

Microstepping is essentially an electronic damping technique, primarily designed to reduce or eliminate low‑frequency vibration. Improved positional resolution is a secondary benefit. Different manufacturers’ microstepping drivers can vary greatly in accuracy, and higher microstepping numbers are harder to control precisely.

This is due to the motor’s pull‑in rate – the maximum pulse frequency at which it can start from standstill without losing steps. If the pulse frequency exceeds this rate, the motor cannot start properly and may lose steps or stall. The solution is to use an acceleration ramp: start at a low frequency and gradually increase to the target high frequency. Integrated stepper motors allow you to set acceleration and deceleration parameters freely.

When the motor rotates, the inductance in each phase winding generates a back‑EMF. The higher the frequency, the greater the back‑EMF, which reduces the phase current and thus lowers the torque.

Excessive temperature can demagnetise the magnetic material, reducing torque and causing step loss. The demagnetisation point is generally above 130°C, some up to 200°C. Therefore, a surface temperature of 80‑90°C is perfectly normal for a stepper motor. The most common insulation class is Class B, with a rated operating temperature up to 130°C.

Applications

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Technical Resources

Technical guides, application notes, and more to help you get the most out of the product.

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