SIASUN MGA Truss Robot (MGA Truss Robot)

On most machining floors the machine tools stay where they are, while the work between them keeps changing: a new part, a new batch size, another lathe at the end of the line. An articulated arm on the floor has to be planned around all of that. A gantry overhead reaches over it. The SIASUN MGA Truss Robot is built for that overhead role. It is a standardised, modular truss system that carries workpieces along the X, Y and Z axes above the cell. It can be lengthened, re-spaced and serviced module by module, so it does not have to be redesigned each time the layout moves.

Robots Europa, based in Dublin, supplies the SIASUN MGA Truss Robot to manufacturers and system integrators throughout the European Union and the DACH region. Our team prepares the quotation for your configuration and arranges delivery to your site. Robots Europa also remains your point of contact for support and replacement modules once the system is running.

Background

SIASUN and its engineering lineage

SIASUN was founded in 2000 and is based in Shenyang, China. Its range spans industrial and mobile robotics as well as special robots and complete system solutions. The truss robots belong to the firm's work in machining automation, where gantry systems handle the loading, unloading and transfer of parts between machine tools. SIASUN describes the MGA as one of the most widely used and efficient industrial robots in the field of machining.

A standard product built from modules

The MGA is a standardised modular product, developed by SIASUN according to market demand. It is flexible in combination, easy to install and highly adaptable. Each part with a fixed function is treated as a module, so the robot is assembled from defined building blocks rather than engineered from scratch for every site. SIASUN supports this with what it calls a "parts supermarket", which can supply the modules a customer requires at any time. SIASUN also offers a family of modular truss robots, the M series, with six sub-series for different applications. For that series it quotes a maximum speed of 240m/min along the X, Y and Z axes, with additional axes available. The sources name the MGH and MGI alongside the MGA. Your Robots Europa quotation will confirm which sub-series and figures apply to your configuration.

Technical Specifications

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

The manufacturer has not published the dimensions, weight, positioning repeatability, power requirements, motor and drive type, control system model, IP rating, maximum acceleration, per-axis stroke figures, operating temperature range or scope of delivery; Robots Europa confirms each of these at quotation.

How does a truss robot differ from an articulated arm in a machining cell?

An articulated robot stands on the floor and works within a fixed envelope around its base. To serve several machines it must be placed between them, moved on a track or duplicated. A truss robot works from a frame above the equipment. The usable area is set by the length and width of that frame, not by the reach of a single arm. For machining lines this is often the deciding factor. The floor stays clear for operators, chip conveyors and coolant systems, and parts travel overhead from one machine to the next.

The MGA makes the most of this architecture. Its X-axis stroke can be extended infinitely to meet user requirements, and its Y-axis spans up to 12m. A single gantry can therefore cover a long row of machines or a wide cell. SIASUN's rectangular guide rails with driving roller bearings carry the X-axis at ultra-high speed. The X-axis subassembly, supported by these rails and roller modules, has high rigidity and high environmental adaptability. It sustains high-speed operation even over long strokes, which is where lighter gantry designs tend to struggle.

What does the modular design mean for installation and maintenance?

The practical value of the MGA lies in how it is put together. Because every part with a fixed function is a module, the system installs quickly and is easy to maintain. The modules are interchangeable and versatile, so a worn or damaged component can be replaced with a matching unit instead of being reworked on site.

One design change deserves particular attention. SIASUN has upgraded the connection between beams and columns from bolting to clamping. Clamped joints let the frame adapt flexibly to the distance between the machines already on your floor. Columns can be positioned to suit the existing layout rather than forcing the layout to suit the frame.

The configuration can also grow with the task. Additional external axes, an A-axis and a C-axis, can be added where parts need to be rotated or reoriented in transit. The control system can be chosen to match the habits of your operators and maintenance staff, so the robot fits into the way your plant already works.

Who is the SIASUN MGA Truss Robot for?

The MGA is aimed first at manufacturers running machining operations who want to automate the loading and unloading of their machine tools without giving up floor space. Plants with long lines of lathes or machining centres benefit from the extendable X-axis and the wide Y-axis span. Operations handling heavy castings or forgings can work within the standard load range of 1 to 5000 kg.

System integrators building turnkey machining cells are a second natural audience. Standardised modules, a clamped frame that adapts to existing equipment, and a selectable control system make the MGA a dependable foundation for repeat projects. Maintenance managers who value quick module replacement and ready access to spare parts will find the architecture equally well suited to their priorities.

The sources name the MGH and MGI as related versions but publish no figures that distinguish them from the MGA. Robots Europa will advise which variant suits your application when preparing your quotation. Further SIASUN equipment for specialised tasks is collected in our Special Robots category.

What is the SIASUN MGA Truss Robot used for?

1. Machine tending Loading raw parts into CNC lathes and machining centres and removing finished ones from above.
2. Line transfer Carrying workpieces between successive machining stations along an extended X-axis.
3. Heavy part handling Moving castings, forgings and blanks within the standard load range of the product.
4. Wide-cell coverage Serving machines arranged across a broad cell thanks to the Y-axis span.
5. Part reorientation Turning workpieces in transit with optional A-axis and C-axis modules.
6. Retrofit automation Fitting over existing machine layouts, with clamped columns adapting to the spacing on site.

Pricing and Availability

Every MGA is configured to its application, with stroke, span, load, external axes and control system all chosen to suit the site. Robots Europa therefore prices each system by individual quotation. Delivery, customs and support are arranged together with your quotation, so the full scope is agreed before an order is placed. To begin, send us your layout, part data and cycle requirements through the quotation request available on this page.

Frequently Asked Questions

What load can the SIASUN MGA Truss Robot handle?

The standard product load ranges from 1 to 5000 kg. The exact rating for your configuration is confirmed in the quotation.

How long can the X-axis be?

The X-axis stroke can be extended infinitely to meet user requirements. This allows a single gantry to serve a long row of machines.

What is the maximum Y-axis span?

The maximum span of the Y-axis is 12m.

Can additional axes be added?

Yes. An A-axis and a C-axis can be added as external axes where workpieces need to be rotated or reoriented.

Which control system does the MGA use?

The control system can be selected to suit your usage habits. Robots Europa confirms the specific model during quotation, as SIASUN does not publish it.

How are spare parts supplied?

SIASUN's "parts supermarket" can supply the required modules at any time. Because the modules are interchangeable, replacement is straightforward, and Robots Europa coordinates supply for its customers.

Where can I buy the SIASUN MGA Truss Robot and what does it cost?

Robots Europa supplies the SIASUN MGA Truss Robot across the EU and the DACH region. The cost depends on your configuration and is set out in an individual quotation, which you can request on this page.

Summary

Machining floors rarely stand still, and the SIASUN MGA Truss Robot is designed for that reality. It works from above, keeps the floor clear and adapts to the machines already in place. Its frame grows along an infinitely extendable X-axis and spans up to 12m in Y. Rectangular guide rails maintain high speed over long strokes, and clamped beam-to-column joints follow the spacing of existing equipment. A modular build keeps installation and maintenance simple, and optional A- and C-axes and a selectable control system shape the robot to the plant. If you are planning to automate a machining line with Robots Europa, this page is the starting point.