SIASUN SR500A-500-2.52 (SR500A-500/2.52)

Moving half a tonne is not the hard part; setting it down in the same place to within a fraction of a millimetre, cycle after cycle, is. That tension between mass and precision defines the SIASUN SR500A-500-2.52 (SR500A-500/2.52), a heavy-duty robot that pairs a 500 kg payload with ±0.1mm repeatability and a reach of 2525mm. Where lighter arms would call for a gantry, a second robot or a manual hoist, this machine carries large components through a wide working envelope without sacrificing the accuracy that the next station on the line depends on.

Robots Europa, based in Dublin, supplies the SR500A-500/2.52 to manufacturers and system integrators across the European Union and the DACH region. We prepare the quotation, coordinate delivery to your site and remain your point of contact for support once the cell is in production, whether the project is a single replacement arm or a new heavy-handling line.

Background

SIASUN and two decades of engineering validation

SIASUN brings over two decades of engineering validation and thousands of project experiences to its industrial robot range. That record carries particular weight at the heavy end of a catalogue, where structural design, transmission choice and control tuning have to prove themselves in real production rather than on paper. The company combines its robot products with application know-how, and the SR500A family reflects that approach: two versions, the SR500A-500/2.52 and the SR500A-360/2.83, share a platform but are configured for different balances of load and working space.

Across the SIASUN line-up, which runs from Small Payload arms for compact parts to machines built for the heaviest loads, the SR500A-500/2.52 belongs firmly with the Ultra High Payload models. It is the robot a plant turns to when the workpiece itself, not the gripper, sets the engineering limits.

Rigidity, transmission and a new generation

At the heart of this robot is a highly rigid structure coupled with a high-performance transmission. Together they deliver fast overall cycle times and a 50% improvement in repeatability compared with the previous generation. High-performance core components and optimised dynamic response sustain high-speed cycles under heavy load, while a wide range of motion and a flexible joint structure provide greater working depth, expanding the usable workspace and improving the flexibility and efficiency of the production line. The design is highly modular, and the wrist comes standard with IP67 protection for reliable operation in harsh environments.

Technical Specifications

Specifications are as published by the manufacturer and are confirmed against the datasheet at quotation.

The manufacturer has not published the robot's weight, axis speeds, axis motion ranges, wrist moment and inertia, mounting options other than upright installation, operating temperature, power supply voltage, scope of delivery or controller compatibility; all of these are confirmed at quotation.

What does the repeatability gain mean on a heavy-load line?

Heavy robots have traditionally asked their users to accept a compromise: the more mass an arm is built to carry, the more its structure and drivetrain tend to flex and the harder it becomes to return to an identical point. The SR500A-500/2.52 addresses that compromise directly. Its rigid structure and high-performance transmission yield a 50% improvement in repeatability over the previous generation, bringing the figure to ±0.1mm with a 500 kg payload rating.

On the shop floor, that combination changes how a cell can be designed. Fixtures can be built with tighter tolerances, because the robot presents the part consistently. Downstream processes such as joining, fastening or insertion receive components where they expect them, which reduces the need for compliance devices or re-gripping stations. And because the same structure also supports fast overall cycle times, precision does not have to be bought at the expense of throughput. For plants replacing an older heavy-duty arm, the generational gain is a practical argument for revisiting processes that were previously considered too demanding for automation.

How does the SR500A-500/2.52 cope with demanding environments?

Heavy-load work rarely takes place in clean, controlled rooms. Coolant mist, dust, washdown and spatter are everyday conditions in many automotive and general industrial plants. The SR500A-500/2.52 answers this with IP67 protection on the wrist as standard, so the part of the arm closest to the process is sealed for reliable operation in harsh environments without an optional upgrade.

The modular, flexible design supports the same goal from another direction. A modular robot is easier to adapt to different cell layouts and tooling, and its wide range of motion and flexible joints let it reach deeper into machines, fixtures or racks than a more constrained arm would. The result is a robot that can be placed where the work is, rather than forcing the work to be rearranged around the robot. For cells exposed to coolant, dust or spatter, the standard wrist sealing removes one item from the list of options a project team would otherwise have to specify.

Who is the SIASUN SR500A-500-2.52 for?

The first audience is automotive manufacturing, where body assemblies, subframes, axles and large castings must be moved quickly and placed accurately. A 500 kg payload with generous reach allows a single robot to handle components that would otherwise need lifting aids or a pair of smaller arms working in coordination.

The second is lithium battery production. Modules, packs and the fixtures that carry them are heavy, valuable and sensitive to mishandling, so the pairing of high load capacity with ±0.1mm repeatability suits transfer, stacking and loading tasks along battery lines. The third is general industry: foundries, machinery builders, heavy fabrication and logistics operations that need to automate the lifting of large workpieces.

System integrators form a fourth group. The SRC L5 controller, the upright installation method and the modular design give integrators a defined starting point when planning a heavy-handling cell.

Not every heavy application is governed by load alone. Where a cell layout is driven more by working space than by mass, the other version of the family, the SR500A-360/2.83, deserves comparison, and Robots Europa can set the two datasheets side by side. For parts well below this robot's class, a mid-range arm such as the SR50A-50/2.15 is usually the more economical choice.

What is the SIASUN SR500A-500-2.52 used for?

1. Automotive body and chassis handling – transferring body assemblies, subframes and axles between stations and fixtures.
2. Lithium battery module and pack transfer – moving heavy battery assemblies accurately along production and assembly lines.
3. Machine loading and unloading – tending machine tools, presses and moulding machines with large, heavy workpieces.
4. Large fixture and tooling manipulation – positioning heavy jigs, fixtures and tools that would otherwise require cranes.
5. Heavy-part palletising and depalletising – stacking and unstacking dense components or packaged goods at line ends.
6. General heavy-load assembly – presenting large components for joining, fastening or inspection in general industrial cells.

Pricing and Availability

Robots Europa supplies the SIASUN SR500A-500-2.52 on a quotation basis, so that the offer reflects your configuration, application and delivery location within the EU or the DACH region. The quotation also addresses the technical questions specific to your cell, from the tooling interface to the installation layout. Delivery, customs and support are arranged together with the quotation. To begin, use the quotation request available on this page.

Frequently Asked Questions

What payload and reach does the SR500A-500/2.52 offer?

The robot carries a payload of 500 kg (1102.3 lbs) and has a reach of 2525mm. This combination places it among the heaviest models in the SIASUN range.

How precise is the SIASUN SR500A-500-2.52?

Its repeatability is ±0.1mm. The highly rigid structure and high-performance transmission deliver a 50% improvement in repeatability over the previous generation.

Which controller does the robot use?

The SR500A-500/2.52 uses the SRC L5 controller, with a power capacity of 15 KVA. The electrical supply of the cell should be planned around that capacity.

Can the robot be mounted other than upright?

The listed installation method is upright installation, so cell planning should assume a floor-standing robot. Please describe your intended layout when requesting a quotation.

Is the robot suitable for harsh environments?

Yes, the wrist comes standard with IP67 protection for reliable operation in harsh environments. No optional upgrade is needed for this sealing.

Which industries is the SR500A-500/2.52 designed for?

Its modular, flexible design suits the automotive, lithium battery and general industrial sectors. It is intended for heavy-load applications in each of them.

Where can I buy the SIASUN SR500A-500-2.52 and what does it cost?

Robots Europa supplies the robot across the EU and the DACH region. The cost depends on your configuration and delivery requirements, so it is set out in a personal quotation that you can request on this page.

Summary

The SR500A-500/2.52 resolves the old trade-off between carrying heavy loads and placing them precisely. A rigid structure and high-performance transmission let it handle 500 kg at ±0.1mm repeatability across a 2525mm reach, with fast cycle times, an IP67 wrist as standard and a modular design suited to automotive, lithium battery and general industrial work. Robots Europa quotes, delivers and supports it throughout the EU and the DACH region, and works through the details of your cell before you commit. For a heavy-handling cell that must also be accurate, this page is the starting point.