Product image © Siasun, shown for identification. Official source ↗.
Siasun
SA20A
Siasun 20 kg payload, 1000 mm reach 4-axis SCARA robot, the heaviest member of the SA-series for large-component pick-and-place.
💲 Price on application
Full specifications
Performance
How much it lifts, how far it reaches, how precisely it repeats.
- Payload
Maximum mass the robot can carry at the wrist flange, including the gripper/tool. Higher means it can handle heavier parts.
- 20 kg 79th pct in class
- Reach
Maximum horizontal distance from the base axis to the wrist — defines the size of the work area. Higher means a larger envelope.
- 1,000 mm 84th pct in class
- Repeatability
How close the robot returns to the same taught point on repeated tries (ISO 9283, ±). Lower is better — tighter precision.
- 0.025 mm 7th pct in class
- Axes (DOF)
Number of independently driven joints / degrees of freedom. 6 is standard for articulated arms; 4 for SCARA/palletizers; 7 adds elbow redundancy.
- 4
- Max TCP speed
Top linear speed of the tool centre point. Higher means faster cycle times.
- 10,800 mm/s 89th pct in class
Motion range & speed
Per-axis travel limits and rotational speeds.
Motion range and maximum speed per joint.
| Axis | Range | Max speed |
|---|---|---|
| J1 | -142° to 142° | — |
| J2 | -152° to 152° | — |
| J4 | -360° to 360° | 705 °/s |
Physical
Size, mass and how it mounts.
- Mounting
Orientations the robot can be installed in (floor, ceiling/inverted, wall, tilted, mobile base).
- floor
Environment
Conditions it can operate in — dust, water, temperature, cleanliness.
- IP rating (arm)
Ingress protection of the body against dust/water (IEC 60529). First digit = dust, second = water. Higher resists harsher environments.
- IP20 0th pct in class
- Noise level
Operating sound pressure level. Lower is quieter.
- 75 dB(A) 0th pct in class
Safety
Standards met and collaborative-operation capability.
- Collaborative
Whether the robot is designed to work safely next to people without fencing (power-and-force-limited).
- No
- Safety standards
Certified safety standards (ISO 10218-1, ISO/TS 15066) and functional-safety level (PLd/PLe, SIL2/3).
- ISO 10218-1
Control & software
Programming, languages and ecosystem.
- Programming
How the robot is taught: pendant, hand-guiding (lead-through), block/flow-chart, scripting, offline simulation.
- teach-pendant, offline-sim
- ROS support
Robot Operating System driver availability (none / ROS 1 / ROS 2 / both).
- none
Safety certifications
- ISO 10218-1 — the primary industrial-robot safety standard covering design and construction requirements
Specifications sourced from Siasun official datasheet ↗. Specs last verified 2026-07-16.
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Frequently asked questions
What is the payload of the Siasun SA20A? +
The Siasun SA20A has a maximum payload of 20 kg.
What is the reach of the Siasun SA20A? +
The Siasun SA20A has a maximum reach of 1,000 mm (1.00 m).
What is the repeatability of the Siasun SA20A? +
The Siasun SA20A has a pose repeatability of ±0.025 mm (ISO 9283), making it highly accurate for precision work.
How many axes does the Siasun SA20A have? +
The Siasun SA20A is a 4-axis scara robot.
What is the Siasun SA20A used for? +
The Siasun SA20A is typically used for assembly, pick-and-place, machine-tending.
What is the IP rating of the Siasun SA20A? +
The Siasun SA20A arm carries an IP20 ingress-protection rating.
How much does the Siasun SA20A cost? +
Siasun SA20A: Price on application. Industrial robots are typically quoted per project through authorized distributors.
