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Overview
The 20T Heavy-Duty is the 20 tonne model in the heavy-duty line of Siasun's customised mobile robot portfolio. It is the upper end of the class that carries complete vehicles and chassis in the final section of heavy truck assembly through dual-vehicle linkage; two robots drive under the long load, share it and advance in sync along the assembly stations. The superstructure is changed for shipyard steel blocks, aircraft fuselage parts and large structural steel. Lifting height is 80-100 mm, positioning accuracy ±10 mm and gradeability 3 percent. Navigation is chosen by site as SLAM, magnetic guidance or colour tape; in its heavy-duty robots Siasun uses natural contour, magnetic, inertial, laser, visual and base station navigation and combines several methods in complex environments. The wheel system balances load bearing with traction and protects the floor; the robot moves in every direction with no turning-radius constraint, carries without bumps under stable speed control and crosses obstacles. Safety hardware consists of an emergency stop, audible and visual alarms and non-contact anti-collision; heavy-duty designs follow ISO 3691-4 at PL d and e. In customised-product fashion, the body and auxiliary mechanisms are designed around the workpiece's centre of gravity, size limits, slope requirement and transfer method; piggyback, chain conveyor and turntable mechanisms are examples. Outdoor editions are protected against rain, snow and dust. The line scales from 3 to 120 tonnes and targets port and container logistics, new energy and energy storage, aerospace and shipbuilding, automotive and construction machinery manufacturing, and steel, metallurgy and heavy industry; references include high-speed train maintenance bases (2010-2015, more than 50 robots), press die transfer up to 60 t, heavy truck assembly since 2018 (10-20 t, dual-vehicle linkage), port container transfer since 2020 (65 t per robot) and energy storage editions in 2024. The robot switches seamlessly between multi-robot coordination and single-robot operation; the fleet layer is the IMRS 2.0 platform, whose TCS dispatch system connects to MES/ERP/WMS through VDA5050, OPC UA, Modbus and MQTT. Robotlar.org supplies the 20T Heavy-Duty to heavy industry and logistics projects in Turkey with enterprise supply, commissioning and engineering support.
20 tonnes, 80-100 mm
It drives under a twenty-tonne chassis or structural part, lifts it 80 to 100 mm and carries it between stations at a steady speed; on long loads two robots work in sync.
No turning radius
Omnidirectional motion: sideways, on the spot, diagonal. The wheel system spreads the load, keeps traction and protects the concrete.
Three navigation modes, ±10 mm
SLAM, magnetic guidance or colour tape; positioning ±10 mm in all three. Methods are combined on complex sites.
80-100 mm lift, ISO 3691-4
The lifting mechanism raises the load by 80-100 mm; emergency stop, audible and visual alarm, non-contact anti-collision. Heavy-duty designs follow ISO 3691-4 at PL d and e.
20T Heavy-Duty: Technical Analysis
The complete vehicle on the robot's back
Towards the end of a heavy truck assembly line the chassis takes on its engine, cab and axles and approaches twenty tonnes; at that point the line is the most expensive and least flexible section of the drag chain. Since 2018 Siasun has built that section with dual-vehicle-linkage mobile robots: two robots drive under the long chassis, share the load and advance in sync along the assembly stations. The 20T Heavy-Duty is the upper end of that class; an 80 to 100 mm lifting height is enough to raise the load and set it down at the station, and omnidirectional motion lets the chassis approach a station sideways. The same body serves shipyard steel blocks, aircraft fuselage parts and large structural steel with a different superstructure.
Its place in the heavy-duty line
The 20T Heavy-Duty sits above the line's 10T model and below the 30T; the series starts at the 3T and 5T and scales to 120 tonnes through the 60T and 80T. All models share the same navigation options, ±10 mm positioning, omnidirectional motion and safety hardware; the distinction is payload, lifting height (80-100 mm on the 20T) and the superstructure designed to the workpiece. Above twenty tonnes, two robots working in sync take the place of a single one; the method applies to truck chassis and to long structural steel alike.
Wheel system and omnidirectional motion
Tens of tonnes crack concrete unless they are spread; in heavy-duty robots the wheel layout therefore matters as much as capacity. The wheel system of the Siasun heavy-duty line balances load bearing with traction and protects the floor; the line scales from 3 to 120 tonnes. The robot moves in every direction with no turning-radius constraint: a 20 t load slides sideways in narrow assembly halls, turns on the spot and travels diagonally. Stable speed control delivers both throughput and bump-free transport; obstacle crossing and bump resistance bring adaptation to different process sites. The lifting mechanism drives under the load, raises it and sets it down at the station.
Navigation and safety
Navigation is chosen by site: SLAM laser mapping, magnetic guidance or colour tape; positioning accuracy is ±10 mm in all three. In its heavy-duty robots Siasun uses natural contour, magnetic, inertial, laser, visual and base station navigation and combines several methods in complex environments; most of the navigation sensors are its own developments. Safety hardware consists of an emergency stop, audible and visual alarms and non-contact anti-collision; heavy-duty designs follow ISO 3691-4 with safety levels engineered to PL d and e, and brakes, stall protection and actuator safeguards are added. Gradeability is 3 percent.
Customisation and outdoor use
The heavy-duty line is a customised product class: the body and auxiliary mechanisms are designed around the workpiece's centre of gravity, the robot's size limits, the slope requirement, the safety of oversized parts and the transfer and docking method; piggyback, chain conveyor and turntable mechanisms are examples. Outdoor editions are protected against rain, snow and dust, with safe outdoor navigation and charging part of the design; in 2024 waterproof, outdoor-capable, ultra-low-profile editions were developed for the energy storage sector. The robot switches seamlessly between multi-robot coordination and single-robot operation; the fleet layer is IMRS 2.0.
Applications
- Port and container logistics: container transfer at transhipment hubs (since 2020, 65 t class per robot).
- New energy and energy storage: moving containers and battery blocks in open yards.
- Aerospace and shipbuilding: large fuselage parts and structural steel.
- Automotive and construction machinery: press die transfer (up to 60 t), heavy truck chassis assembly (10-20 t, dual-vehicle linkage).
- Steel, metallurgy and heavy industry: coil, slab and heavy part handling.
- Rail maintenance: high-speed train frame maintenance bases (2010-2015, more than 50 robots).
Price and sourcing
The 20T Heavy-Duty is sourced for Turkey on a project basis; as a customised product, investment is set by corporate quotation against workpiece dimensions and centre of gravity, lifting and docking mechanism, navigation choice, outdoor protection, quantity, IMRS 2.0 scope and MES integration; import, commissioning and operator training are part of delivery. Request a quotation with the workpiece drawing, route plan and floor data.
20T Heavy-Duty Technical Specifications
| Parameter | Value |
|---|---|
| Robot type | Heavy-duty mobile robot (customised product) |
| Payload capacity | 20 t |
| Lifting height | 80-100 mm |
| Positioning accuracy | ±10 mm |
| Navigation methods | SLAM / magnetic guidance / colour-tape guidance |
| Gradeability | 3% |
| Motion | Omnidirectional; no turning-radius constraint |
| Safety protection | Emergency stop, audible and visual alarm, non-contact anti-collision |
| Family load range | 3-120 t |
| Fleet | Multi-robot coordination / single robot; IMRS 2.0 |
Summary
The 20T Heavy-Duty carries complete trucks and twenty-tonne structural parts along assembly stations through dual-vehicle linkage, localises to ±10 mm and gets a superstructure designed to the workpiece. The 30T, 60T and 80T cover heavier loads in the same series. Request a quotation with the workpiece drawing and line plan.
Details & Performance Parameters.
Physical Architecture
Dynamic Performance
Energy & Protection
Computing & Intelligence
SLAM / magnetic / colour-tape navigation; positioning ±10 mm; stable speed control
Non-contact anti-collision; emergency stop; audible and visual alarm
Omnidirectional motion with no turning-radius constraint; seamless switching between multi-robot coordination and single-robot operation; obstacle crossing and bump-free travel
IMRS 2.0 platform: TCS vehicle dispatch and traffic control (VDA5050, OPC UA, Modbus, MQTT), LWS warehouse management, SAS statistics, LPT layout planning, DTS digital twin, IoT; MES/ERP/WMS integration
Hardware & Materials
Lifting height 80-100 mm; piggyback, chain conveyor and turntable mechanisms; body customised to the workpiece
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About the Siasun 20T Heavy-Duty
20T Heavy-Duty Frequently Asked Questions
The most commonly asked questions and answers about 20T Heavy-Duty.
The 20 tonne model of the Siasun heavy-duty mobile robot series: it lifts the load 80 to 100 mm, localises to ±10 mm on SLAM, magnetic or colour-tape navigation, moves in every direction and is customised to carry long loads such as complete trucks through dual-vehicle linkage.
There are three options: SLAM laser mapping, magnetic guidance and colour tape; positioning is ±10 mm in all three. Magnetic or colour tape suits halls with fixed routes and uniform traffic, SLAM suits sites whose routes change; in complex environments the methods are combined.
Yes. The robot moves in every direction with no turning-radius constraint: it slides sideways, turns on the spot and travels diagonally. The wheel system spreads the load on the floor and keeps traction; gradeability is 3 percent.
Outdoor editions are protected against rain, snow and dust; safe outdoor navigation and charging are part of the design. Port deployments run editions built for high temperature, salt spray and uneven ground; site conditions are assessed at the survey.
Yes; the 20T Heavy-Duty is a customised product. The body and auxiliary mechanisms are designed around the workpiece's centre of gravity, size limits, slope requirement and transfer method; piggyback, chain conveyor and turntable options exist.
The 20T Heavy-Duty is sourced on a project basis: workpiece dimensions and centre of gravity, route plan, floor and grade data are worked out at the survey; import, commissioning and operator training are part of delivery. For a quotation, send the workpiece drawing, daily moves and the site plan.
