The ASPINA ARH350A and ARH305B are electric three-finger grippers for handling round, cylindrical, and other workpiece shapes. Both models feature adjustable gripping parameters, replaceable fingers, and a hollow channel for cable or tube routing. ARH350A provides a higher-force option, while ARH305B is designed for lightweight and delicate parts. The Aspina DOBOT+ plug-in supports connection setup, status retrieval, and basic gripping control on compatible DOBOT CRA and Nova series robots.
Wide Opening Range
Both models offer a maximum opening diameter of 143 mm with standard fingers, accommodating workpieces of different sizes within the applicable gripping conditions.
Adjustable Gripping Parameters
The grippers support adjustable gripping force, position, and operating speed. Model selection provides higher-force handling with ARH350A or lower-force handling of lightweight parts with ARH305B.
Hollow Channel and Replaceable Fingers
The central hollow channel accommodates cable or tube routing for optional equipment. Replaceable fingers allow workpiece-specific finger shapes, with additional components selected for the application.
DOBOT+ Integration
The Aspina DOBOT+ plug-in provides connection setup and testing, status retrieval, and basic gripping control through DobotStudio Pro for supported CRA and Nova series robots.
Pick-and-Place
Transfers round or cylindrical components between workstations, with gripping conditions selected for the workpiece geometry, material, and weight.
Assembly and Inspection Handling
Supports component handling in automated assembly and inspection setups, using finger shapes and gripping settings suited to the application.
| Parameter | ARH350A | ARH305B |
|---|---|---|
| Maximum opening diameter | Ø143 mm | Ø143 mm |
| Gripping force, per finger at 30 mm | 50 N | 5 N |
| Maximum workpiece weight at 70 mm grip point | 500 g | 50 g |
| Maximum workpiece weight at 30 mm grip point | 3,000 g | 300 g |
| Full-stroke opening/closing time | 0.8–10 s | 0.25–10 s |
| Maximum finger length | 100 mm | 100 mm |
| Positioning repeatability, no load | ±0.05 mm | ±0.05 mm |
| Gripper weight | 640 g | 640 g |
| Supply voltage | 24 V ±10% | 24 V ±10% |
| Peak current during rated operation | 0.6 A | 0.6 A |
| Native serial interface | RS-485, Modbus RTU | RS-485, Modbus RTU |
| Gripper IP rating | IP2X | IP2X |
| Operating ambient temperature | 0–40°C | 0–40°C |
Grip-point distances are measured from the finger rotation center. Workpiece weight capacity depends on the workpiece material, finger configuration, and gripping conditions. The robot’s payload limits also apply. Opening/closing times refer to a full-stroke movement.
| Compatible Robot Series | Minimum Software Version |
|---|---|
| DOBOT CRA series | DobotStudio Pro V4.6.6.0-stable or later |
| DOBOT Nova series | DobotStudio Pro V4.6.6.0-stable or later |
Integration Method: DOBOT+ plug-in
Plug-in: Aspina_v1-0-0-stable
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