SIASUN G-20-30X (G-20-30X)

Moving a laden trailer across an industrial site is seldom the difficult part once it is rolling. The awkward moments come at either end, when someone has to reverse a tractor up to a drawbar, couple it, and later uncouple it again, often in the rain and often in the middle of the night. The SIASUN G-20-30X (G-20-30X) is designed to take that person out of the loop: an autonomous tractor that finds its way across open, changeable outdoor terrain and hitches to and separates from its load trailer without anyone on board. For sites where heavy loads shuttle between halls, yards and storage areas around the clock, it turns towing from a staffed task into a scheduled, monitored process.

Robots Europa, based in Dublin, supplies the SIASUN G-20-30X to customers throughout the European Union and the DACH region. Robots Europa prepares each quotation to match the towing rating and site conditions you describe, arranges delivery to your premises and remains your point of contact for technical support once the vehicle is in service, so that a single partner handles the project from the first enquiry to everyday operation.

Background

SIASUN and its robotics lineage

SIASUN is a Chinese robotics and automation manufacturer headquartered in Shenyang, with its origins in the research community of the Chinese Academy of Sciences. Its portfolio spans industrial robots, mobile robots and complete logistics automation systems, and its mobile robot range covers both compact indoor platforms and heavy outdoor vehicles. The G-20-30X belongs to the heavier end of that range, where the engineering challenge shifts from navigating tidy warehouse aisles to coping with open roads, changing light, weather and mixed traffic on an industrial campus.

Positioning: a heavy tractor that hitches itself

SIASUN describes the G-20-30X as a campus delivery mobile robot for heavy-load towing. Two technologies define it. The first is multi-source perception, fusing 3D lidar, satellite navigation, inertial navigation and vision sensing for accurate positioning and intelligent path planning in complex outdoor environments. The second is SIASUN's patented automatic hitch and unhitch technology, which lets the tractor couple to and separate from its load trailer unmanned. Together they address the two places where outdoor towing has traditionally depended on a driver: knowing exactly where the vehicle is, and making the physical connection to the load.

Technical Specifications

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

SIASUN has not published the dimensions, vehicle weight, battery capacity and type, runtime, charging method, IP rating, operating temperature range, turning radius, safety sensor set or the contents of the delivery; Robots Europa confirms these details with you at quotation.

How does the G-20-30X couple to a trailer without a driver?

In conventional yard operations the tractor is only as autonomous as its least automated step. A vehicle that drives itself but still needs an operator to drop a pin into a drawbar saves little labour, because someone must be present at every pick-up and every drop. SIASUN's patented automatic hitch and unhitch technology closes that gap: the tractor docks with the load trailer, couples, tows and later separates from it, all unmanned.

The practical consequence is a different way of organising transport. Trailers can be loaded at a production hall while the tractor is elsewhere, then collected when they are ready; a single tractor can serve several trailers in rotation rather than waiting beside one. Because the coupling relies on the same precise positioning the vehicle uses for navigation, the docking manoeuvre and the route form one continuous, automated sequence rather than a hand-over between machine and person.

How does the G-20-30X find its way outdoors?

Outdoor sites defeat many of the techniques that work indoors. Reflectors and floor markings wear, open spaces offer few fixed features, and light and weather change by the hour. The G-20-30X addresses this with multi-sensor fusion navigation, combining 3D-SLAM, an IMU and RTK positioning. Satellite navigation with RTK correction provides an absolute position on open ground; 3D lidar builds and matches a map of buildings and structures where the sky is obstructed; inertial navigation bridges the moments when other inputs are momentarily weak; and vision sensing adds a further layer of perception.

Fusing these sources is what lets the vehicle plan paths intelligently and adapt to a variable environment, rather than following a fixed track. Combined with rear-wheel drive and hydraulic power-assisted service braking, the result is a tractor intended for the scale and conditions of a working industrial campus, operating 7*24H and in all weathers.

Who is the SIASUN G-20-30X for?

The G-20-30X suits organisations whose heavy materials travel outdoors between buildings rather than within a single hall. Manufacturers running large production campuses, where components, sub-assemblies or finished goods move between workshops, storage yards and dispatch areas, are the most obvious users. Operators of industrial parks with shared logistics, and plants that run continuous shifts and struggle to staff night-time towing, will also recognise the case for a tractor that works around the clock and couples its own trailers.

It is equally relevant to logistics and automation managers who are building a fleet rather than buying a single vehicle. The G-20-30X coordinates with other vehicles over its communication link and integrates with management software, which makes it a candidate for a site-wide transport system rather than an isolated pilot.

Where your loads, routes or indoor requirements point elsewhere, Robots Europa can compare the G-20-30X with other models in the SIASUN range, such as the SIASUN G-5-6X (G-5-6X), the SIASUN G-8-15X (G-8-15X) and the SIASUN G-40X (G-40X), and supply their datasheets on request. The wider selection is available in our Mobile Robots and Logistics Robots categories.

What is the SIASUN G-20-30X used for?

1. Inter-building transfers – towing heavy trailers between workshops and halls across an industrial campus.
2. Yard-to-production supply – bringing materials from outdoor storage areas to the point of use on a defined schedule.
3. Round-the-clock shuttles – maintaining transport through night shifts and weekends without additional drivers.
4. Drop-and-swap trailer handling – leaving loaded trailers to be filled or emptied while the tractor collects another.
5. Coordinated fleet operation – running several vehicles together under management software to streamline site logistics.
6. Changeable outdoor routes – operating across open ground and between structures in varying weather and light.

Pricing and Availability

The SIASUN G-20-30X is supplied on quotation, because the towing rating, site layout and integration requirements shape each project. Robots Europa reviews your loads, routes and existing systems and prepares a quotation for the configuration that fits. Delivery, customs and after-sales support are arranged together with that quotation, so the terms are clear before you commit. To begin, simply use the quotation request available on this page.

Frequently Asked Questions

What towing weights is the SIASUN G-20-30X rated for?

The rated towing weight is 20000/25000/30000 kg. Robots Europa will advise which rating suits your loads and routes.

How fast does the G-20-30X travel?

The travel speed is 2.2 m/s. Route planning on your site should take account of traffic, junctions and any speed restrictions you apply.

Can it operate continuously and outdoors?

Yes. The G-20-30X is designed for 7*24H, all-weather operation in complex outdoor environments.

Does the tractor need an operator to couple the trailer?

No. SIASUN's patented automatic hitch and unhitch technology allows the tractor to couple to and separate from the load trailer unmanned.

Which safety functions are built in?

The vehicle provides remote monitoring, sensor self-check, abnormal alarm and protection against abnormal operation. Braking is by hydraulic power-assisted service brake.

Can several G-20-30X vehicles work together?

Yes. The vehicles coordinate over a communication link and integrate with management software to optimise logistics flows.

Where can I buy the SIASUN G-20-30X and what does it cost?

You can buy the SIASUN G-20-30X from Robots Europa, which supplies customers across the EU and the DACH region. The cost depends on configuration and project scope, so please request a quotation and Robots Europa will prepare an offer for your site.

Summary

Heavy towing on an industrial campus has always depended on people at the moments that matter most: navigating open ground and making the connection to the load. The SIASUN G-20-30X automates both, pairing multi-sensor fusion navigation built on 3D-SLAM, IMU and RTK with patented unmanned hitching, and it backs them with hydraulic power-assisted braking, built-in monitoring and fleet integration for continuous, all-weather work. Robots Europa supplies, delivers and supports it across the EU and the DACH region. If you are ready to take the driver out of your yard towing, this page is the starting point.