SIASUN Heavy Payload Mobile Robot (Heavy Payload Mobile Robot)

Heavy payload mobile robots are used where conventional forklifts, cranes, or manual transport methods become inefficient or risky—such as transporting large dies in stamping workshops, moving heavy assemblies in vehicle production, or handling containers in ports. SIASUN’s public case materials frame these systems as a response to longstanding industrial challenges: high labor intensity, lower operational efficiency, and elevated safety risks associated with traditional heavy-load transport.

Design and Features

Heavy-load drivetrain and wheel system

SIASUN emphasizes that heavy payload capability depends heavily on the gear system and the wheel system, which must provide sufficient load-bearing capacity and driving force while also avoiding damage to the floor.
In practice, heavy payload AGVs often use multi-wheel architectures and robust drive modules to distribute load, maintain traction, and support smooth starts/stops under high inertia conditions.

Omnidirectional movement and maneuverability

A typical feature highlighted by SIASUN is flexible operation, including forward, backward, sideways, and spin movements.
SIASUN also notes that many heavy-duty mobile robots can operate in all directions without requiring a turning radius, which is especially valuable in constrained workshops where turning large loads would otherwise require wide aisles or complex multi-step maneuvers.

Navigation options for complex environments

SIASUN describes heavy payload mobile robots as typically using navigation methods such as magnetic navigation or laser navigation, with selection depending on site requirements.
In broader SIASUN heavy payload deployments, the company lists multiple navigation approaches—such as laser guidance, inertial navigation, visual navigation, magnetic guidance, and combinations of multiple systems to improve reliability in challenging environments.

Safety and system integration

SIASUN highlights safety as a core requirement for heavy payload robots. Its heavy payload case materials state that designs adhere to ISO 3691-4 and reference safety levels engineered to PL d/e classifications, with equipment such as emergency stops, protective devices, indicator lights, audio alarms, brakes, and actuator safeguards.
On the product side, SIASUN also emphasizes high compatibility, noting that heavy payload mobile robots can operate independently or be integrated into production management systems.

Technology and Specifications

Core performance characteristics (SIASUN product positioning)

SIASUN’s “Heavy Payload Mobile Robot” product page outlines several representative attributes:

• Heavy-load threshold (category definition): typically ≥ 5 tons

• Typical operating speed: around 0.5 m/s (generally controlled)

• Positioning accuracy: ±5 mm parking positioning accuracy

• Maximum loading capacity (stated): up to 200 tons

• Typical navigation: magnetic or laser navigation (varies by site)

Payload product lineup examples

SIASUN’s product catalog for mobile robots includes multiple heavy-duty payload classes, including 3T, 5T, 10T, 20T, 30T, 60T, and 80T heavy-duty mobile robots, with listed lifting heights (commonly around 80–100 mm depending on payload class).
These “heavy-duty” payload classes sit alongside broader heavy payload claims (including much larger-tonnage configurations), indicating a spectrum from heavy in-plant transport through to ultra-heavy industrial and logistics applications.

Outdoor heavy payload logistics (port/harbor class)

For outdoor, trackless guided heavy payload operations (harbor/port-style use), SIASUN describes navigation options including RTK differential positioning, UWB positioning, laser contour positioning, vision positioning, GPS, and even 5G positioning technology, and notes the ability to carry containerized loads (e.g., multiple container sizes) depending on configuration.

Applications and Use Cases

Automotive stamping workshops (die transport)

SIASUN describes using heavy payload mobile robots with mechanisms such as piggyback and chain conveyors to transport dies and sheet materials between presses and workstations. In this context, SIASUN cites robots with 60-ton carrying capacity used for die transportation.

Heavy truck assembly and auxiliary assembly movement

SIASUN reports that it introduced heavy truck assembly line mobile robots using dual-vehicle linkage technology to replace traditional drag-chain solutions, supporting assembly tasks with payload capacity in the 10–20 ton range.

Rail maintenance and industrial component handling

In rail maintenance, SIASUN states it supplied over 50 heavy payload mobile robots (2010–2015 timeframe) to high-speed train maintenance bases for frame repair applications.

Port logistics and container transfer

For ports, SIASUN’s case narrative describes heavy payload mobile robots used for automated container transfer, citing designs handling 65 tons per mobile robot and engineered for complex conditions such as high temperature and salt spray, as well as uneven terrain and impact forces from hoisting operations.

Energy storage and outdoor industrial logistics

SIASUN also describes tailoring heavy payload mobile robots for energy storage facilities, emphasizing waterproof design, outdoor operation, and ultra-low profiles for heavy loads as part of an unmanned transport and distribution solution.

Advantages / Benefits

Heavy-load capability with industrial positioning accuracy

A major differentiator is the combination of high tonnage capacity (including SIASUN’s stated up to 200 tons) and ±5 mm positioning accuracy for docking/parking tasks, supporting repeatable load transfer at stations and tooling interfaces.

Space-efficient movement in tight workshops

Omnidirectional functions (sideways motion and spin) reduce the need for wide turning aisles, which is valuable when moving oversized tooling or assemblies between stations.

Flexible navigation and multi-sensor approaches

SIASUN’s published navigation approach ranges from magnetic/laser solutions for industrial interiors to multi-technology positioning stacks for outdoor container logistics, supporting wider deployment scenarios across industries.

Integration into production management systems

SIASUN highlights that heavy payload mobile robots can be integrated into broader management systems, enabling dispatching, production linkage, and traceability depending on the customer’s manufacturing IT architecture.

FAQ Section 

What is a SIASUN Heavy Payload Mobile Robot?

A SIASUN Heavy Payload Mobile Robot is an industrial AGV/AMR designed to transport very heavy loads—commonly defined by SIASUN as 5 tons or more—with solutions ranging from multi-ton classes to ultra-heavy applications depending on configuration.

How does a heavy payload mobile robot work?

It uses a reinforced drivetrain and wheel system to support heavy loads, navigates using methods such as magnetic or laser guidance (and other positioning technologies depending on the environment), and docks with stations using controlled motion and positioning accuracy for load transfer.

Why is heavy payload automation important?

Automating heavy-load transport can reduce labor intensity and safety risks while improving logistics efficiency—especially in industries handling oversized tooling, large assemblies, or containerized cargo.

What are the benefits of a SIASUN Heavy Payload Mobile Robot?

SIASUN highlights benefits such as ±5 mm parking positioning accuracy, the ability to reach very high payload capacities (stated up to 200 tons), omnidirectional operation (including sideways and spin), and the ability to integrate into production management systems.

Summary

The SIASUN Heavy Payload Mobile Robot is a heavy-duty AGV/AMR category focused on safe, flexible, and precise transport of multi-ton to ultra-heavy industrial loads. SIASUN characterizes the class as typically starting at 5 tons and highlights capabilities including omnidirectional movement, controlled speeds around 0.5 m/s, and ±5 mm docking/parking accuracy, with stated configurations reaching up to 200 tons. Across use cases—from automotive die transport and heavy truck assembly to rail maintenance, ports, and energy storage—SIASUN positions heavy payload mobile robots as a core enabler for modernizing heavy logistics with automation and systems integration.