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●Introduction of equipment features: heavy handling weight; wide space coverage; can replace six-axis robots. ●Examples of usage scenarios: handling and loading, automatic stacking, automatic loading, automatic welding, heavy product handling, long-distance handling, etc.
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Rigid-arm assisted manipulator arms are widely used in the automotive, film, paper and printing, home appliance and electronics manufacturing, machining and casting, food, pharmaceutical and chemical, warehousing and logistics, and new energy industries.
A linear gantry robot (also known as an overhead coordinate robot or Cartesian robot) is an industrial automation device that operates based on a Cartesian coordinate system (X, Y, Z). Compared with traditional articulated robots, it has become the preferred solution for ultra-long-distance material handling and large workpiece assembly due to its large workspace, high load capacity, and excellent linear motion accuracy.
The 2-axis gantry robot primarily uses high-strength aluminum profiles or steel structural beams as guideways.
X-axis (lateral movement): Responsible for a large range of horizontal translation, usually serving as the basic beam.
Z-axis/Y-axis (vertical or longitudinal movement): Responsible for material gripping, lifting, or forward/backward feeding.
Drive System: Employs servo motors in conjunction with high-precision synchronous belts or rack and pinion drives to ensure positioning accuracy at high speeds.
High Space Utilization: Suspended installation saves floor space and facilitates integration with downstream production line equipment (such as CNC lathes and injection molding machines).
Modular Design: Shaft length can be customized to fit the actual workshop span; load capacity ranges from a few kilograms to hundreds of kilograms, offering excellent scalability.
High Precision and High Speed: Repeatability reaches ±0.05mm; operating speed far exceeds manual operation, significantly improving production cycle efficiency.
Low Maintenance Costs: The structure is intuitive; core components (guide rails, sliders, belts) are standardized parts, simplifying maintenance.
When customizing a 2-axis gantry robot, the following core metrics typically need to be confirmed.
| Parameter Item | Description |
| Effective Travel | Maximum distance traveled by each of the X and Z/Y axes |
| Rated Load | Total weight including the gripper and workpiece |
| Repeatability | Error range for reciprocating to the same position |
| Operating Speed | Maximum traverse speed under rated load |
| Environmental Requirements | Whether dustproof, corrosion-resistant, or high-temperature adaptability is required |
2-axis gantry robots are widely used in “linear” or “planar” automated operations:
CNC Machine Tool Loading and Unloading: Cycling between two machine tools, it completes the gripping of raw parts and the placement of finished parts.
Palletizing and Depalletizing: At the logistics backend, it arranges and stacks cartons and woven bags in a regular manner.
Injection Molded Part Removal: Working with injection molding machines, it quickly removes plastic products and places them on a conveyor belt.
Automated Glue Application/Spraying: Performs uniform coating operations on a preset two-dimensional path.
Two-axis gantry robots are one of the most cost-effective options for replacing human labor in factories. Their minimalist structure solves the challenges of high-frequency, high-intensity material handling, making them a fundamental unit for building intelligent production lines.
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