SIASUN Sheet Metal Welding Machine Set

Thin carbon steel sheet leaves very little margin for error. With too much heat, a panel warps before the seam has cooled. With an unstable arc, spatter lands across a visible surface and turns a finished part into a grinding job. The SIASUN Sheet Metal Welding Machine Set is built to work within that narrow margin. It pairs a SIASUN SR-series industrial robot with digital welding equipment and a control system that governs the droplet itself, so that thin material is joined cleanly rather than simply survived.

Robots Europa, based in Dublin, supplies the SIASUN Sheet Metal Welding Machine Set to manufacturers across the European Union and the DACH region. Robots Europa prepares each quotation for the configuration you require, arranges delivery to your site and remains your point of contact for support once the set is in production.

Background

SIASUN and its SR-series robots

SIASUN develops its own industrial robots, and this welding set is centred on that in-house SR-series range rather than on a third-party arm. The company has built an international presence, with overseas branches and regional hubs in Singapore, Thailand, Malaysia, Germany, Mexico, Japan and beyond. For European buyers, that footprint is part of the context in which the set is supplied. In the SIASUN range, the Sheet Metal Welding Machine Set sits alongside the Medium and Thick Plate Welding Machine Set, and each is aimed at a different class of workpiece.

Chopping control at high frequency

The core technology of the set is the way it controls metal transfer. A 110kHz high-frequency hardware system works with proprietary algorithms to apply precise “chopping” control. This significantly reduces the spatter caused by liquid bridge rupture and electromagnetic repulsion, which are the two familiar sources of spatter in short-circuit welding. An all-digital control system manages the arc and the droplet to stabilise the weld pool. Soft-switching inverter technology supports equipment reliability and energy efficiency. The robot, welding and process systems are integrated into a trinity on one intelligent robotics platform, so that they work as a single stable unit rather than as separate components joined together on site.

Technical Specifications

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

SIASUN has not published the rated output current of the welding power source, the rated input power, the weight or dimensions of the set, the payload, repeatability or reach of the robot in this set, the IP rating, the contents of the delivery or the wire feeding speed; Robots Europa confirms all of these at quotation.

What makes the Sheet Metal set different from the Medium and Thick Plate set?

The difference begins with the material. The SIASUN Sheet Metal Welding Machine Set is tuned for the problems of thin gauge. It achieves ultra-low spatter welding on carbon steel sheets from 1 to 3mm thick. Spatter is reduced by 60%, and heat input can be finely adjusted downwards by 10%-20%. Those are the levers that matter when distortion, burn-through and surface clean-up decide whether a part passes inspection. The result is thin sheet welding with minimal distortion.

Heavier sections raise different questions. These include fill volume, multiple passes across thick joints and the management of large weldments. For that work, SIASUN offers a separate version, the SIASUN Medium And Thick Plate Welding Machine Set. Its specifications are listed on its own page and should not be read across from this one. If your parts span both ranges, Robots Europa can set out the two versions side by side in a single quotation.

Which functions are standard and which are optional?

Five functions are included as standard: Flying Welding, Continuous Spot Welding, Rotational Mirror Translation, the Reservation Function and the Breakpoint Recovery Feature. In practice, the last two address everyday production realities. Breakpoint recovery lets an interrupted seam be resumed rather than scrapped. Mirror and rotational translation of programs suits families of left-hand and right-hand or rotated parts, which are common in sheet metal assemblies.

Three capabilities are offered as options: a Seam Finding Function, Weld Seam Tracking and Multi-Pass Welding. Seam finding and tracking are worth considering where part fit-up varies from batch to batch, or where fixtures cannot hold every blank to the same position. Multi-pass welding is useful where a joint calls for more than one run. These options are chosen when your configuration is defined, so the set you receive matches your parts rather than a generic catalogue configuration.

Who is the SIASUN Sheet Metal Welding Machine Set for?

The set suits fabricators whose work is dominated by thin carbon steel: makers of enclosures, cabinets, housings, frames and brackets, where visible seams and flat panels are part of the product's quality. It also suits contract manufacturers who run many part variants, because standard program transformation and breakpoint recovery reduce the cost of changing jobs. Production engineers who want to replace manual MIG/MAG welding on sheet components will find a packaged robot, power source and torch combination easier to commission than a cell assembled from separate suppliers.

Other buyers will be better served elsewhere in the range. Those working mainly with medium and heavy sections should look at the SIASUN Medium And Thick Plate Welding Machine Set. Those comparing alternatives for high-volume thin-material joining may also review the SIASUN Laser Welding Production Line. A wider overview is available in the Welding Robots category and across SIASUN Industrial Robots.

What is the SIASUN Sheet Metal Welding Machine Set used for?

1. Electrical enclosures and cabinets – joining thin carbon steel panels where visible seams must stay clean.
2. Machine guarding and housings – welding sheet covers and frames with minimal distortion of flat surfaces.
3. Brackets and mounting parts – repetitive short seams and spot-type welds across large batches.
4. Mirrored part families – producing left-hand and right-hand components from one program through mirror translation.
5. Sheet metal subassemblies – welding frames and assemblies for equipment and furniture manufacturers.
6. Replacing manual thin-sheet welding – moving operator-dependent MIG/MAG work onto a consistent robotic process.

Pricing and Availability

Robots Europa supplies the SIASUN Sheet Metal Welding Machine Set on quotation, because the robot type, power source, torch and optional functions are chosen to suit your parts. Send us your material, typical joint types and production volumes, and we will prepare a configuration and a quotation for you. Delivery, customs and support are arranged with the quotation. A request for a quotation for the SIASUN Sheet Metal Welding Machine Set is available on this page.

Frequently Asked Questions

What sheet thickness is the set designed for?

The set achieves ultra-low spatter welding on carbon steel sheets from 1 to 3mm thick. For heavier sections, the Medium and Thick Plate version is the better starting point.

Which robots can the set be built on?

The robot types listed for the set are the SR12A-12/1.46 and the SR25A-12/2.01, both from SIASUN's in-house SR series. The right model for your parts is selected with you when the configuration is defined.

Which welding machines and torches are used?

The listed welding machines are the MEGMEET Dex2 350LDR and the Aotai NBC350RL. The listed torches are the Loyee GL350N-HDA and the TRM 352P.

How does the set limit distortion on thin sheet?

Spatter is reduced by 60%, and heat input can be finely adjusted, decreased by 10%-20%. A 110kHz high-frequency hardware system with “chopping” control and an all-digital control system stabilises the weld pool.

Is weld seam tracking included?

Weld seam tracking, the seam finding function and multi-pass welding are optional. Flying Welding, Continuous Spot Welding, Rotational Mirror Translation, the Reservation Function and Breakpoint Recovery are standard.

Can one program cover left-hand and right-hand parts?

Rotational Mirror Translation is a standard function of the set. It allows a program to be mirrored or rotated for related parts, which reduces the programming effort for part families.

Where can I buy the SIASUN Sheet Metal Welding Machine Set and what does it cost?

You can buy it from Robots Europa, which supplies customers across the EU and the DACH region from Dublin. The cost depends on the configuration and options you choose, so we provide it in a tailored quotation that you can request on this page.

Summary

Thin sheet punishes excess heat and an unsettled arc, and the SIASUN Sheet Metal Welding Machine Set is designed around that fact. A SIASUN SR-series robot, digital welding equipment from MEGMEET or Aotai, and 110kHz chopping control are integrated on one platform. Together they deliver ultra-low spatter welding on 1 to 3mm carbon steel, with heat input reduced where distortion matters most. Standard functions cover the realities of variant-heavy production, and optional seam finding, tracking and multi-pass welding extend the set where your parts require them. For a configuration and quotation from Robots Europa, this page is the starting point.