- 220 kg payload with 3218 mm reach A large 3218 mm arm span and well-balanced link-length ratio provide extensive reach while carrying a 220 kg payload with ±0.06 mm repeatability.
- Backlash-free J5 axis Backlash-free gearboxes on the fifth axis, with rigid connections throughout the joints, greatly minimize high-speed vibration.
- High-inertia custom wrist motor A custom wrist motor delivers superior torque performance while meeting the demands of high-inertia application scenarios.
- NURBS trajectory planning NURBS interpolation with variable-velocity and variable-acceleration planning maximizes hardware performance for more efficient operation.
- IP67-rated wrist Wrist protection to IP67 stands up to dust, spatter, and demanding industrial production conditions.
- Six-axis versatility Rated for handling, assembly, gluing, torquing and fastening, loading and unloading, and spot welding within a single cell.
Description
The SIASUN SR270A-220/3.21 is a six-axis industrial robot built around a large 3218 mm arm span that delivers an extensive reachable range, paired with a 220 kg payload, ±0.06 mm repeatability, and an IP67-rated wrist. A well-balanced link-length ratio maximizes reachability across the envelope, while backlash-free gearboxes on the fifth axis and rigid connections throughout the joints ensure high overall rigidity and suppress high-speed jitter. A custom wrist motor balances strong torque with high load capacity, making the robot well suited to high-inertia application scenarios.
NURBS trajectory interpolation combined with variable-velocity and variable-acceleration planning extracts maximum efficiency from the hardware for smoother, faster operation. SIASUN positions the SR270A-220/3.21 for handling, assembly, gluing, torquing and fastening, loading and unloading, and spot welding, with platform case studies spanning automotive welding assembly lines, LCD TV manufacturing, teach-free welding, automated carton palletizing, flexible welding workstations, and intelligent welding systems for shipbuilding and engineering machinery.
Features
Specs
| Brand | SIASUN |
|---|---|
| Model | SR270A-220/3.21 |
| Payload | 220kg |
| Reach | 3218mm |
| Repeatability | ±0.06mm |
| Degrees of Freedom | 6 |
| Protection (Wrist) | IP67 |
| J5 Axis | Backlash-free gearbox |
| Wrist Motor | Custom motor for high-inertia applications |
| Motion Control | NURBS interpolation, variable velocity/acceleration planning |
| Application Area | Handling, assembly, gluing, torquing and fastening, loading and unloading, spot welding |
Industries
Frequently Asked Questions
It is a six-axis industrial robot from SIASUN's SR270A platform, rated for a 220 kg payload with a long 3218 mm reach and ±0.06 mm repeatability. It features a backlash-free J5 gearbox, a custom high-torque wrist motor for high-inertia work, NURBS trajectory planning, and an IP67-rated wrist.
SIASUN lists handling, assembly, gluing, torquing and fastening, loading and unloading, and spot welding as its application areas. Platform case studies include automotive welding assembly lines, LCD TV manufacturing, automated palletizing, and intelligent welding systems for ships and engineering machinery.
Both are configurations of the same SR270A platform with different payload-reach balances: the SR270A-220/3.21 carries 220 kg across a longer 3218 mm reach, while the SR270A-270/2.70 carries a heavier 270 kg across a shorter 2700 mm reach. Choose the 3.21 m version when your cell needs extra reach, or the 270 kg version for heavier parts within a tighter envelope.
Pricing is provided on request. Submit a quote or inquiry through Robotix Market and our team will respond with current pricing, availability, and shipping details for your location.
The SR270A-220/3.21 is covered by the manufacturer's warranty as provided by SIASUN. Robotix Market ships worldwide — contact us for delivery terms and lead times to your country.
SIASUN SR270A-220/3.21 Long-Reach Industrial Robot
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