SIASUN Medium And Thick Plate Welding Machine Set

A thick-plate joint is rarely finished in one pass. The root goes in first, then fill passes, then a cap, and every layer depends on the one beneath it being clean, evenly deposited and correctly placed. In a manual workshop that sequence relies on the hand and eye of an experienced welder, who is increasingly hard to find and impossible to clone. The SIASUN Medium And Thick Plate Welding Machine Set addresses that bottleneck by building the whole sequence around an industrial robot, an intelligent welding control system and a digital power source designed to work together. The robot finds the joint, follows the seam and lays down pass after pass, while the operator moves from holding the torch to supervising the cell.

Robots Europa, based in Dublin, sells and supplies the SIASUN Medium And Thick Plate Welding Machine Set to manufacturers and fabricators throughout the European Union and the DACH region. Robots Europa prepares each quotation around the configuration you need, coordinates delivery to your site and remains your point of contact for support once the cell is in production.

Background

SIASUN and the SR series

SIASUN is a manufacturer of industrial robots and automation systems, and the robots at the centre of this set come from its own SR series, which the company developed independently rather than sourcing from a third-party robot maker. That matters for a welding package: when the manipulator, the control logic and the process functions are designed to be combined, the integration work that a buyer would otherwise commission from a systems integrator is largely settled before the equipment leaves the factory. Within the wider SIASUN range, this welding set sits alongside larger general-purpose arms in the Industrial Robots category and alongside dedicated welding packages for other material thicknesses.

A set, not a loose collection of parts

The defining idea of this product is the word "set". SIASUN combines three elements: an SR-series industrial robot, a next-generation intelligent welding control system and state-of-the-art digital welding equipment. The welding power source is the Megmeet Dex2 500MPR, supported by a recirculating cooling tank. The smart welding software adds position sensing detection, seam tracking and multi-pass welding as routine functions, which are precisely the capabilities that heavier sections demand. The result is a package that delivers low-spatter, smooth welds with even bead deposition and a clean transition at the toe of the weld.

Technical Specifications

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

The manufacturer has not published the controller model, the welding torch model, the robot axis count, the full list of items supplied or the teach pendant specifications for this set; all of these are confirmed at quotation.

What makes the medium and thick plate set different from the sheet metal set?

SIASUN offers a separate SIASUN Sheet Metal Welding Machine Set, and the comparison is the clearest way to understand what this product is for. Thin material punishes excess heat: it distorts, burns through and leaves little margin for error. Thicker sections pose the opposite problem. They need sufficient energy to achieve fusion through the full joint, and they often need several passes to fill a bevel, which in turn requires the robot to know exactly where each pass should go.

The medium and thick plate set answers this with a 500A-rated power source, the Megmeet Dex2 500MPR, and with software functions aimed squarely at heavier work. Position sensing detection lets the system locate the actual joint rather than relying solely on the programmed path, which compensates for the tolerances of cut and fitted plate. Seam tracking keeps the torch on the joint as the weld progresses. Multi-pass welding organises the root, fill and cap layers into a repeatable routine. Water cooling, supported by the Anycool-66 recirculating tank, is the usual approach when a power source works at higher currents over long cycles.

Which robot version should I choose?

The sources name two SIASUN robots for this set, the SR12A-12/1.46 and the SR25A-12/2.01. Both carry a maximum payload of 12kg and IP65 wrist protection, and both use built-in wiring, which routes cables through the arm rather than along its exterior and so reduces the risk of snagging around fixtures and workpieces. The choice between them is best made against your workpiece dimensions and fixture layout, and Robots Europa will discuss both options with you before preparing your quotation.

Who is the SIASUN Medium And Thick Plate Welding Machine Set for?

The natural buyer is a fabricator or manufacturer whose welding work is dominated by structural parts rather than thin enclosures: steel frames, brackets, base plates, machine bodies, chassis members and similar components where joints are bevelled and filled over several passes. Manufacturers of agricultural, construction and materials-handling equipment fall squarely into this group, as do steel structure fabricators and producers of pressure-bearing or heavy-duty assemblies.

It also suits companies struggling to staff skilled welding positions. Because the set packages seam tracking and multi-pass routines as standard functions, it allows a smaller team of experienced welders to oversee automated production while concentrating their own skills on difficult one-off work.

Workshops that also process stainless steel or aluminium alloys will appreciate that the set handles those materials as well as carbon and low-alloy steel, which allows a mixed product range to share one cell.

Where most of your parts are thin sheet, such as cabinets, housings or light enclosures, the SIASUN Sheet Metal Welding Machine Set is the better match, and Robots Europa can quote both for comparison.

What is the SIASUN Medium And Thick Plate Welding Machine Set used for?

1. Structural steel fabrication: filling bevelled joints on beams, columns and connection plates in repeatable multi-pass sequences.
2. Heavy equipment manufacturing: welding frames and booms for construction, agricultural and materials-handling machinery.
3. Machine bases and bodies: producing rigid welded bases where consistent penetration and bead profile matter.
4. Vehicle chassis and subframes: automating repetitive joints on carbon and low-alloy steel members.
5. Stainless steel assemblies: low-spatter welding on stainless components where appearance and cleaning time count.
6. Aluminium alloy structures: smooth, even welds on aluminium parts within the same automated cell.

Pricing and Availability

The SIASUN Medium And Thick Plate Welding Machine Set is configured to order, so Robots Europa works on the basis of a written quotation rather than a fixed list figure. Tell us about your parts, materials, plate thicknesses and preferred robot version, and we will prepare a quotation that sets out the configuration in full. Delivery, customs and support are arranged together with the quotation, so you receive one clear proposal for supply within the EU and the DACH region. A quotation for the SIASUN Medium And Thick Plate Welding Machine Set is available on this page.

Frequently Asked Questions

Which welding power source does the set use?

The power source is the Megmeet Dex2 500MPR, rated at 500A output current and 39V output voltage on a 380Vac supply.

Which materials can it weld?

The set delivers low-spatter, smooth welding on carbon steel, low-alloy steel, stainless steel and aluminium alloys.

Does it support seam tracking and multi-pass welding?

Yes. The smart welding software includes position sensing detection, seam tracking and multi-pass welding as routine functions.

What is the difference between the SR12A-12/1.46 and the SR25A-12/2.01?

Both robots carry a 12kg maximum payload, IP65 wrist protection and built-in wiring. Robots Europa will help you choose between them on the basis of your workpieces and fixture layout.

How is the power source cooled?

The Dex2 500MPR supports air cooling and water cooling, with the Anycool-66 recirculating cooling tank for water-cooled operation.

What is included in the delivery?

Robots Europa sets out the exact scope of supply in your quotation, together with the controller, torch and teach pendant details for your cell.

Where can I buy the SIASUN Medium And Thick Plate 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. The cost depends on the configuration you choose, so please request a quotation on this page.

Summary

Thick-plate welding is a craft of layers, and the difficulty has always lain in repeating that craft reliably, part after part, shift after shift. The SIASUN Medium And Thick Plate Welding Machine Set turns the layered sequence into a programmed routine: an SR-series robot with IP65 wrist protection and built-in wiring, a Megmeet Dex2 500MPR power source rated at 500A, and software that senses the joint, tracks the seam and organises multiple passes. It covers carbon steel, low-alloy steel, stainless steel and aluminium alloys, and it leaves the skilled welder free to supervise rather than repeat. Supplied, delivered and supported by Robots Europa across the EU and the DACH region, it is a practical route to automating the heavy joints in your production, and for a quotation tailored to your parts, this page is the starting point.