Product image © Siasun, shown for identification. Official source ↗.
Siasun
SA4A
Siasun 4 kg payload, 400 mm reach 4-axis SCARA robot for high-speed precision assembly and dispensing in electronics manufacturing.
💲 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.
- 4 kg 17th 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.
- 400 mm 12th pct in class
- Repeatability
How close the robot returns to the same taught point on repeated tries (ISO 9283, ±). Lower is better — tighter precision.
- 0.01 mm 59th 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
- Wrist inertia
Allowable moment of inertia at the wrist — how much rotating mass it can swing without overload. Higher is more capable.
- 0.05 kg·m² 10th pct in class
Motion range & speed
Per-axis travel limits and rotational speeds.
- Max axis speed
Highest rotational speed of the fastest joint. Higher helps short, fast moves.
- 2,600 °/s 65th pct in class
Motion range and maximum speed per joint.
| Axis | Range | Max speed |
|---|---|---|
| J1 | -132° to 132° | — |
| J2 | -141° to 141° | — |
| J4 | -360° to 360° | — |
Physical
Size, mass and how it mounts.
- Robot weight
Mass of the manipulator (arm) without controller. Lighter eases mounting and mobile use; heavier often means stiffer/higher payload.
- 13 kg
- Mounting
Orientations the robot can be installed in (floor, ceiling/inverted, wall, tilted, mobile base).
- floor
Power & controller
Electrical supply and the control cabinet that drives it.
- Power draw
Typical operating power consumption. Lower is more efficient.
- 150 W 92th pct in class
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
- Operating temp
Ambient temperature range for normal operation.
- 0 to 45 °C
- Humidity
Permissible relative-humidity range (non-condensing).
- 10 to 80 %RH
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
Industrial Robotics Hub — industrialroboticshub.com
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 2026-06-26.
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Frequently asked questions
What is the payload of the Siasun SA4A? +
The Siasun SA4A has a maximum payload of 4 kg.
What is the reach of the Siasun SA4A? +
The Siasun SA4A has a maximum reach of 400 mm (0.40 m).
What is the repeatability of the Siasun SA4A? +
The Siasun SA4A has a pose repeatability of ±0.01 mm (ISO 9283), making it highly accurate for precision work.
How many axes does the Siasun SA4A have? +
The Siasun SA4A is a 4-axis scara robot.
What is the Siasun SA4A used for? +
The Siasun SA4A is typically used for assembly, pick-and-place, dispensing.
What is the IP rating of the Siasun SA4A? +
The Siasun SA4A arm carries an IP20 ingress-protection rating.
How much does the Siasun SA4A cost? +
Siasun SA4A: Price on application. Industrial robots are typically quoted per project through authorized distributors.
