SIASUN MGI Truss Robot (MGI Truss Robot)

In most machining cells, the spindle is not the bottleneck; the minutes between cycles are. A machine tool that waits for an operator to exchange a blank for a finished part loses capacity that no faster cutting strategy can recover. The SIASUN MGI Truss Robot addresses that gap from above: a modular gantry mounted over the equipment, moving parts at up to 240 m/min along its X-axis and Z-axis, so that loading and unloading keep pace with the machines it serves rather than holding them back.

Robots Europa, based in Dublin, supplies the SIASUN MGI Truss Robot to manufacturers and system integrators throughout the European Union and the DACH region. We prepare each quotation against your cell layout and workpieces, coordinate delivery to your site, and remain your point of contact for technical questions and support once the system is in operation.

Background

SIASUN and its modular truss range

SIASUN is a Chinese manufacturer of robotics and automation equipment whose portfolio extends from industrial robots to mobile robots for factory logistics; the wider range can be explored on our SIASUN page. Within that portfolio, the modular truss robots form the M series, a standard product line that SIASUN developed in response to market demand. The M series comprises six sub-series, each suited to different applications. The MGI is the sub-series that SIASUN positions for machining, where it describes the MGI as one of the most widely used and efficient industrial robots in that field. The sources also name the MGH and MGA as further members of the family.

A gantry built from standard modules

What distinguishes the MGI from a bespoke gantry is its construction. SIASUN designs it as a standardised modular product: flexible in combination, easy to install and highly adaptable. Because every product in the range is built from modules, the components offer good interchangeability and versatility, which simplifies both installation and later replacement. SIASUN backs this with what it calls a "parts supermarket", from which the modules a customer requires can be supplied at any time. The structure itself has been revised as well: the connection between beams and columns has been upgraded from bolting to clamping, allowing the gantry to adapt flexibly to the spacing of the equipment already installed on site.

Technical Specifications

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

SIASUN has not published the dimensions, weight, repeatability, power requirements, control system model, connectivity, axis stroke ranges, package contents, operating environment or software for the MGI; these are confirmed with you at quotation.

What makes the MGI Truss Robot different from a conventional bolted gantry?

A traditional gantry is often engineered once, for one cell, and then left alone. Its beams and columns are bolted together at fixed positions, so moving a machine or adding a new one tends to mean redesigning the structure. The MGI takes a different approach. Its beams are fixed to the columns by clamping rather than bolting, which lets the structure follow the actual distances between your machines instead of forcing the machines to fit a predetermined frame.

The modular principle carries through to maintenance and expansion. Because the modules are interchangeable across the range, a worn or damaged component can be replaced with a standard part rather than a custom-made one, and SIASUN's parts supermarket is set up to supply those modules whenever they are needed. For a plant manager, the practical consequence is that the gantry becomes a configurable asset: it can be extended, reconfigured or repaired without starting again from a blank drawing. Customisation is also built in at the level of motion and control, since additional A- and C-axes can be fitted and the control system can be chosen to match the conventions your operators and maintenance staff already use.

Can the MGI Truss Robot keep its speed over a long stroke?

Long travel is where many gantries compromise, because a longer beam usually means more deflection and lower permissible speeds. SIASUN addresses this on the X-axis, the axis that carries the longest travel. Across all series, the X-axis runs on a rectangular guide rail of SIASUN's own design, combined with driving roller bearings that enable ultra-high-speed movement. The subassembly built from these rectangular guide rails and roller modules offers high rigidity and high environmental adaptability, and SIASUN states that it achieves high-speed operation even with long strokes.

This matters because the X-axis stroke can be extended infinitely to meet user requirements. A single MGI can therefore run along a row of machine tools, linking several stations with one carriage, while still reaching its maximum speed of 240 m/min along the X-axis. For lines that are expected to grow, that combination of extensibility and rigidity is the core argument for the design.

Who is the MGI Truss Robot for?

The MGI is aimed first and foremost at machining operations: plants running CNC lathes, machining centres or grinding machines where parts must be loaded, unloaded and passed between stations without interrupting production. Its standard load range covers small components as well as heavy workpieces, which makes it relevant both to precision subcontractors and to manufacturers of large castings or forgings.

System integrators form a second group. A standardised, modular gantry with a selectable control system and optional rotary axes gives integrators a repeatable building block that can be adapted to each customer's cell without bespoke structural engineering. Plants with changing layouts or product mixes are a third: the clamped beam-and-column connection and interchangeable modules suit factories that expect to rearrange equipment over the life of the system.

Not every handling task is a machining task, and the M series reflects that with six sub-series for different applications, including the MGH and MGA named alongside the MGI. Where your application lies outside machining, Robots Europa will advise on which sub-series fits best; related equipment can also be found in our Special Robots category.

What is the MGI Truss Robot used for?

1. Machine tool loading and unloading: exchanging blanks and finished parts at lathes and machining centres between cycles.
2. Linking machining lines: serving several machine tools in a row from one extended X-axis.
3. Heavy workpiece handling: moving parts across the standard load range without manual lifting.
4. Inter-station transfer: carrying parts between machining, measuring and washing stations within a cell.
5. Part reorientation: turning or rotating workpieces between operations with optional A- and C-axes.
6. Retrofitting existing cells: fitting a gantry over installed equipment by adapting the clamped structure to the machine spacing.

Pricing and Availability

The MGI Truss Robot is configured to each application, so its cost depends on the stroke, load, additional axes and control system you require. Robots Europa therefore prepares an individual quotation based on your cell layout, workpieces and production targets. Delivery, customs and support are arranged with the quotation, so you receive one clear proposal covering the route from order to operation. To begin, send us your requirements using the quotation request available on this page.

Frequently Asked Questions

What load can the SIASUN MGI Truss Robot handle?

The standard product covers a load range of 1 to 1000 kg. The exact configuration for your workpieces is agreed during quotation.

How fast does the MGI Truss Robot move?

It reaches a maximum speed of 240 m/min along the X-axis and Z-axis.

Can the X-axis be lengthened for a longer line?

Yes. The X-axis stroke can be extended infinitely to meet user requirements, and the rigid X-axis subassembly is designed for high-speed operation over long strokes.

Can rotary axes be added?

Yes. Additional external axes, namely an A-axis and a C-axis, can be added to suit the application.

Which control system does the MGI use?

The control system is selected according to the customer's usage habits. The specific controller for your installation is agreed with Robots Europa during quotation.

How are replacement parts supplied?

Thanks to the modular design, components are interchangeable across the range, and SIASUN's parts supermarket can supply the modules a customer requires at any time.

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

Robots Europa supplies the MGI Truss Robot across the EU and the DACH region. Because each system is configured to its application, the cost is set out in an individual quotation, which you can request from this page.

Summary

The time a machine tool spends waiting is capacity lost, and the MGI Truss Robot is built to win it back. Its modular construction, clamped beam-and-column connection and interchangeable modules let it fit the cell you already have, while the SIASUN rectangular guide rail and roller modules keep the X-axis rigid and fast over strokes that can be extended as your line grows. With a standard load range of 1 to 1000 kg, optional A- and C-axes and a control system chosen to match your practice, it brings handling up to the pace of machining. Robots Europa quotes, delivers and supports it throughout the EU and the DACH region; for your next machining cell, this page is the starting point.