SIASUN SR220A-125/3.10 (SR220A-125/3.10)
In stock
- BRAND:
- SIASUN
- MODEL:
- SR220A-125/3.10
- PART #:
- SR220A-125/3.10
- ORIGIN:
- China
- Warranty:
- 12 MONTHS
- AVAILABILITY:
- SUBJECT TO AVAILABILITY
- SKU:
- SIASUN-SR220A-125-3-10
SIASUN SR220A-125/3.10 (SR220A-125/3.10)
A robot that can carry a heavy tool across a big work cell is useful; one that carries it without flexing, then settles back to the same point cycle after cycle, is what a production line actually pays for. The SIASUN SR220A-125/3.10 (SR220A-125/3.10) is built around that second idea: a long arm, a heavy payload and a structure stiffened to keep both under control.
The product is available through this page, by quotation.
Background
SIASUN and its industrial robot lineage
SIASUN is a robot manufacturer whose industrial arms are grouped into series by load capacity and arm reach. The SR220A-125/3.10 belongs to the large payload family, which is aimed at applications where a lighter arm would be stretched too far. You can browse the wider range in the Large Payload category or in the Industrial Robots category.
Within that family the model name carries its main figures: 125 kg of payload and 3100mm of reach. Sibling models in the range offer other combinations of payload and reach.
Positioning and key technology
The SR220A-125/3.10 is designed around rigidity and smooth motion. Its forward-designed, all-new 220 five-axis backlash-free gearbox structure increases overall machine rigidity by 17%. It is paired with a forward-designed high-performance gearbox that offers strong adaptability.
Motion is handled by optimized dynamic algorithms with variable-speed, variable-acceleration planning. NURBS transition is used in the path planning, and the result is smoother and faster operation. A custom high-inertia motor from SIASUN's own brand supports the wrist and increases the allowable end-effector inertia by 8%.
Technical Specifications
| Specification | Value |
|---|---|
| Payload | 125 kg (275.6 lbs) |
| Reach | 3100mm |
| Repeatability | ±0.06mm |
| Protection (wrist) | IP67 |
| Protection (whole machine) | IP54 |
| Overall rigidity | Improved by over 17% |
| Spot welding cycle time | Improved by over 11% |
| Allowable end-effector inertia | Increased by 8% |
Specifications as published by the manufacturer; confirmed against the datasheet at quotation.
The manufacturer has not published the weight, the axis speeds, the axis motion ranges, the power supply, the controller model, the mounting options, the operating temperature or what is in the box; they are confirmed at quotation.
What makes the SR220A-125/3.10 stiffer than earlier designs?
The answer lies in the gearbox structure. The all-new 220 five-axis backlash-free design raises overall machine rigidity by 17%. A stiffer arm holds its tool path under load, which matters when 125 kg of tooling sits at the end of a 3100mm reach.
The wrist adds to this. The custom high-inertia motor raises the allowable end-effector inertia by 8%, so heavier or less compact tools are easier to accommodate.
How does it protect itself in harsh work cells?
A customized aviation plug sealed cover gives the machine IP54 as a whole and IP67 at the wrist. The wrist is the part closest to the process, so it receives the higher rating. This suits cells where dust, spatter or washdown reach the end of the arm more than the base.
Who is SIASUN SR220A-125/3.10 for?
It suits integrators and plant engineers who handle heavy parts or tooling across a wide envelope: body-in-white lines, large fixtures, and welding cells where cycle time counts. Teams that value repeatability of ±0.06mm will find it relevant for consistent positioning.
If your cell needs a different payload and reach balance, compare the SR220A-220/2.66, the SR270A-220/3.21 and the SR360A-280/3.20.
What is SIASUN SR220A-125/3.10 used for?
- Spot welding: variable-speed motion planning improves cycle time by over 11%.
- Heavy material handling: moves loads up to 125 kg across a 3100mm reach.
- Machine tending: reaches deep into large machines and fixtures.
- Palletizing and loading: the large envelope serves tall stacks and wide cells.
- Large-part assembly: repeatability of ±0.06mm supports consistent placement.
- Demanding environments: IP67 at the wrist suits cells with dust or moisture.
Pricing and Availability
We do not print prices here. Request a quotation and we will confirm the configuration with you. Delivery, customs and support are arranged with the quotation. The SIASUN SR220A-125/3.10 is available on this page.
Frequently Asked Questions
What is the payload of the SR220A-125/3.10?
The payload is 125 kg (275.6 lbs).
How far does it reach?
The reach is 3100mm.
How precise is it?
Repeatability is ±0.06mm.
What protection rating does it have?
The whole machine is rated IP54 and the wrist IP67.
Does it improve spot welding cycle time?
Yes, variable-speed, variable-acceleration planning with NURBS transition improves spot welding cycle time by over 11%.
What gearbox does it use?
It uses a forward-designed high-performance gearbox within an all-new 220 five-axis backlash-free structure.
Where can I buy the SIASUN SR220A-125/3.10 and what does it cost?
You can request it through this page. The cost is provided in a quotation, not printed here.
Summary
The SR220A-125/3.10 pairs a 125 kg payload and a 3100mm reach with a stiffened structure, so the tool goes where it is sent and returns to the same point. Rigidity, smooth motion planning and a sealed wrist give it a clear place in heavy-duty cells. To request a quotation, this page is the starting point.
