SIASUN 3T Heavy-Duty Mobile Robot

Three tonnes is an awkward weight on a factory floor. It is too heavy to push on a trolley, it is often too valuable to swing from a crane, and moving it by forklift ties a driver to every transfer. The SIASUN 3T Heavy-Duty Mobile Robot is built for exactly that middle ground. It slides beneath a load, raises it and carries it along a planned route to a stated positioning accuracy, with the safety functions needed on floors that people share.

Robots Europa, based in Dublin, supplies the SIASUN 3T Heavy-Duty Mobile Robot to customers across the European Union and the DACH region. Robots Europa prepares each quotation, arranges delivery to your site and remains your point of contact for support after commissioning. That means one partner handles the whole route from first enquiry to a robot in operation.

Background

SIASUN and its robotics lineage

SIASUN is a Chinese robotics manufacturer whose portfolio spans industrial robot arms, mobile robots and automated logistics systems. Its heavy-duty mobile robots form a dedicated family for industrial transport, where the challenge is not only carrying a heavy object but carrying it precisely, repeatably and safely through a working plant. The family is designed around the realities of heavy manufacturing: large components, fixed process stations and floors that must not be damaged by the vehicles crossing them.

Where the 3T sits in the range

SIASUN's heavy-duty series covers a 3–120 t load range, and the 3T is the version named for the lightest load class in it. The sources name further versions at 5T, 10T, 20T, 30T, 60T and 80T. Across the series, SIASUN describes a platform with omnidirectional motion and no turning-radius constraints. It offers several navigation options for accurate positioning and path planning, and an optimised wheel system intended to balance carrying capacity and traction while protecting the floor. The series can work as a single robot or in multi-robot coordination, switching seamlessly between the two, and is designed for obstacle crossing and stable travel across diverse processes. For the 3T itself, the manufacturer publishes a specific set of figures, listed below.

Technical Specifications

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

SIASUN has not published the dimensions, weight, travel speed, battery type and capacity, runtime and charging time, IP rating, drive configuration, operating temperature range or the contents of the delivery for this version; Robots Europa confirms these details with the quotation.

How does the SIASUN 3T navigate and stay safe on a shared floor?

The 3T offers three navigation methods, and the choice matters more than it might first appear. SLAM navigation builds and uses a map of the environment, so routes can be changed in software without altering the floor. This suits plants whose layouts evolve as product lines change. Magnetic guidance follows markers installed in the floor, giving a fixed, highly predictable path that suits stable, repetitive transfers. Colour-tape guidance follows a visible line applied to the floor, which is quick to lay out and easy for staff to read. A site can therefore match the method to how often its routes change and how much floor preparation it accepts.

Whichever method is used, the robot positions its load to ±10 mm. That tolerance shapes the downstream process: a load that arrives where the next station expects it can be picked up, machined or assembled without manual nudging. The 100 mm lifting height lets the robot raise a load clear of its supports before travelling and set it down again at the destination.

Safety is handled on several levels. An emergency stop gives operators immediate control, an audible and visual alarm announces the robot's presence and status, and non-contact anti-collision detection lets it react to obstacles before contact. Together, these make the 3T suitable for areas where vehicles and staff work side by side. The site's own risk assessment and CE-compliant integration remain part of any deployment.

Should you choose the 3T or a higher-capacity SIASUN version?

The decision starts with the heaviest load the robot must move, not the typical one. The 3T is rated for a 3 t payload, so it fits sites whose fixtures, sub-assemblies or containers stay within that figure, including any tooling or carriers that travel with them. Where loads exceed it, or are expected to grow, a version from a higher load class in the series is the more sensible starting point. Choosing too small a version means a second procurement later.

Route geometry is the second question. The 3T's published gradeability is 3%, which suits level floors and gentle transitions. Steeper ramps on a route should be raised early so that Robots Europa can check them against the manufacturer's data. The third question is fleet size. Because the series supports both single-robot operation and multi-robot coordination, a site can begin with one 3T and add units, or combine versions, as transport volumes rise.

Who is the SIASUN 3T Heavy-Duty Mobile Robot for?

The 3T is aimed at manufacturers moving loads up to its rated capacity between fixed process stations: automotive and construction machinery plants transferring sub-assemblies, energy storage producers moving modules through assembly, and fabrication shops shuttling work pieces between cells. It also suits operations teams that want to take forklifts out of repetitive transfers and free drivers for less predictable tasks. Systems integrators planning a mixed fleet will find it a natural entry point to the series.

Buyers whose loads exceed three tonnes should look further up the range. The SIASUN 5T Heavy-Duty Mobile Robot and the SIASUN 10,000 Kg Heavy-Duty Mobile Robot cover heavier load classes. The SIASUN 20T Heavy-Duty Mobile Robot and the SIASUN 30T Heavy-Duty Mobile Robot address substantially larger components. The complete family is gathered in our Heavy Duty Mobile Robots category.

What is the SIASUN 3T Heavy-Duty Mobile Robot used for?

1. Automotive sub-assembly transfer – moving body parts, frames and fixtures between assembly stations on a planned route.
2. Construction machinery manufacturing – carrying components and work pieces through fabrication and assembly cells.
3. Energy storage production – transporting modules and assemblies through new energy and battery manufacturing processes.
4. Aerospace and shipbuilding workshops – shuttling smaller components and tooling between workshop areas.
5. Steel and heavy industry – handling loads within its rated capacity in metallurgical and heavy-industrial plants.
6. Port and container logistics support – moving equipment and lighter loads within the scope of the series' port applications.

Pricing and Availability

The SIASUN 3T Heavy-Duty Mobile Robot is supplied on quotation, because navigation method, safety integration and fleet configuration differ from one site to the next. Delivery, customs and support are arranged together with the quotation. Tell us about your loads, routes and floor conditions, and Robots Europa will prepare an offer that matches them. A personalised quotation is available on this page.

Frequently Asked Questions

What payload can the SIASUN 3T carry?

The SIASUN 3T Heavy-Duty Mobile Robot has a payload capacity of 3 t. For heavier loads, a higher-capacity version in the SIASUN series is the better choice.

How precisely does it position a load?

The positioning accuracy is ±10 mm. This allows loads to be delivered to process stations without manual correction.

Which navigation methods does the 3T support?

It supports SLAM navigation, magnetic guidance and colour-tape guidance. The best choice depends on how often your routes change and how much floor preparation is acceptable.

Can it climb ramps?

The published gradeability is 3%, which suits level floors and gentle inclines. Routes with steeper sections should be reviewed with Robots Europa before ordering.

What safety functions does it have?

The 3T has an emergency stop, an audible and visual alarm and non-contact anti-collision detection. These are integrated into your site's overall safety concept during commissioning.

Can several units work together?

Yes. The SIASUN heavy-duty series supports multi-robot coordination as well as single-robot operation, with seamless switching between the two modes.

Where can I buy the SIASUN 3T Heavy-Duty Mobile Robot and what does it cost?

You can buy it from Robots Europa, which supplies customers throughout the EU and the DACH region. The cost depends on your configuration and is set out in a personalised quotation that you can request on this page.

Summary

Loads of around three tonnes have long fallen between the tools a plant already owns: too heavy for manual handling, too routine to justify a driver for every move. The SIASUN 3T Heavy-Duty Mobile Robot closes that gap. It offers a 3 t payload, 100 mm lifting height, ±10 mm positioning accuracy, a choice of three navigation methods and layered safety protection. It belongs to a series that scales to far heavier loads, which keeps a later expansion within one platform. For an offer from Robots Europa tailored to your loads and routes, this page is the starting point.