Product image © Siasun, shown for identification. Official source ↗.
Siasun
SN4A
Siasun 4 kg payload, 580 mm reach 6-axis compact robot with IP67 wrist protection for harsh-environment handling and assembly.
💲 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 5th 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.
- 580 mm 6th pct in class
- Repeatability
How close the robot returns to the same taught point on repeated tries (ISO 9283, ±). Lower is better — tighter precision.
- 0.02 mm 68th 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.
- 6
- Wrist torque
Allowable torque at the wrist axis — how much twisting force a tool can apply. Higher handles bigger/offset tools.
- 4.6 N·m 1th pct in class
- Wrist inertia
Allowable moment of inertia at the wrist — how much rotating mass it can swing without overload. Higher is more capable.
- 0.2 kg·m² 3th 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 | -170° to 170° | 450 °/s |
| J2 | -130° to 90° | 318 °/s |
| J3 | -55° to 165° | 288 °/s |
| J4 | -170° to 170° | 550 °/s |
| J5 | -120° to 120° | 450 °/s |
| J6 | -360° to 360° | 612 °/s |
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.
- 22 kg
- 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 (wrist)
Ingress protection at the wrist, often higher than the body for wet/washdown duty.
- IP67 14th 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 SN4A? +
The Siasun SN4A has a maximum payload of 4 kg.
What is the reach of the Siasun SN4A? +
The Siasun SN4A has a maximum reach of 580 mm (0.58 m).
What is the repeatability of the Siasun SN4A? +
The Siasun SN4A has a pose repeatability of ±0.02 mm (ISO 9283), making it highly accurate for precision work.
How many axes does the Siasun SN4A have? +
The Siasun SN4A is a 6-axis articulated arm robot.
What is the Siasun SN4A used for? +
The Siasun SN4A is typically used for assembly, material-handling, machine-tending.
How much does the Siasun SN4A cost? +
Siasun SN4A: Price on application. Industrial robots are typically quoted per project through authorized distributors.
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