Heavy-Duty Tracked Robot Chassis, 400 kg Payload — NexusUGV 07-K20

The 07-K20 is a heavy-duty tracked robot chassis built to carry 400 kg on a 300 kg frame and to keep working where wheels stop. It measures 1700 × 1200 × 500 mm, runs on a 48 V / 6000 W drive with a 100 Ah battery for 0–8 hours, and clears 200 mm of ground beneath the hull. It climbs gradients up to 40° and crosses obstacles at least 300 mm high and 1000 mm wide, controlled from up to 1000 m away. NexusUGV builds these platforms factory-direct in China and configures them to order for UGV integration projects.

Payload, Drive and Runtime

The 07-K20 carries 400 kg on a 300 kg chassis, a working ratio that lets a single operator move serious equipment without a towing vehicle. The drive is a 48 V system rated at 6000 W, which is what gives the platform enough torque to start a fully loaded chassis on a slope rather than only to keep it rolling on the flat. Energy comes from a 100 Ah pack, and the quoted run time is 0–8 hours depending on how the machine is used: a light payload on smooth ground sits at the top of that range, while continuous climbing, loose gravel, or a heavy top-deck load pulls it down.

Plan duty cycles around that range rather than around its maximum. If your work is inspection with intermittent movement, the platform will comfortably cover a shift. If your work is continuous hauling on gradients, treat 8 hours as an upper bound and size your battery or swap strategy accordingly. The 48 V architecture also keeps the electrical system within the range that most integrators already have test equipment and spares for, which shortens commissioning on site.

Terrain Capability: Gradeability, Clearance and Obstacle Crossing

Gradeability is quoted at up to 40°, ground clearance at 200 mm, and obstacle crossing at 300 mm high and 1000 mm wide. Read together, those numbers describe a platform for constructed and semi-constructed environments: loading ramps, kerbs, steps, drainage channels, rubble, and unpaved yard surfaces. The clearance figure is the one that decides whether a site is usable at all, because it sets the largest rock, kerb or debris the hull can pass over without grounding.

Tracked drive is the reason this class of platform exists. Compared with wheels of the same footprint, tracks spread load over a larger contact area, which lowers ground pressure and improves grip on loose or soft ground. That is why tracked chassis are the default choice for platforms that must operate on gravel, soil, sand or wet vegetation while carrying a heavy deck load. For route planning, treat the three terrain figures as hard constraints rather than targets: a 42° slope or a 350 mm step is outside the quoted envelope, and a sensible integration plan either avoids those features or provides a ramp.

Control and Integration

The 07-K20 is remote controlled over a quoted range of 0–1000 m, which covers line-of-sight operation on a construction site, a research yard or a test track. The platform is supplied as a mobility base: the top deck and mounting provisions are the interface, and your own compute, sensing and communications stack sits on top of them. Cameras, LiDAR, environmental sensors, manipulators, sprayers and winches are the usual payloads on platforms of this class; on the 07-K20 the mounting surface is the 1700 × 1200 mm top deck, and the mounting provisions themselves are specified per project.

Integration projects should confirm two things before ordering. First, the physical interface: mounting hole pattern, deck load distribution, and the cable routing you need from hull to payload. Second, the electrical and control interface: whether your autonomy stack drives the platform through an RC handset, a serial or CAN link, or a dedicated controller. NexusUGV configures the drive and control arrangement per project, so the requirement should be stated in the enquiry rather than assumed from a photo.

Applications: Research, Transport, Logistics and Towing

The applications listed for the 07-K20 are research, transport, logistics support, payload mounting and towing. Each maps to a different integration pattern. Research platforms use the deck for instrumentation, data capture and repeated short test runs where reproducibility matters more than speed. Transport duties move parts, samples or equipment across a site. Logistics support covers the repetitive resupply runs that would otherwise consume a person's day. Payload mounting is the open-ended case — the deck is a mounting surface for whatever the mission needs. Towing uses the 6000 W drive and 400 kg capability in the opposite direction, pulling a load behind the platform instead of carrying it on top.

What these five have in common is that they are all unsheltered, ground-level, repetitive jobs in environments that are hard on equipment. That is the case for tracked mobility, a 200 mm clearance hull and a drive train built around a 400 kg rating rather than a hobby-scale track set.

Custom Builds and OEM/ODM

The 07-K20 is configured to order. Speed is the clearest example: 0–20 km/h, and that choice changes the drive sizing, braking and control tuning rather than being a simple software setting. Motor and gearing, the control arrangement and the deck provisions are likewise specified per project, which is how the platform adapts to a payload that was not on the drawing board when the standard unit was defined.

NexusUGV has manufactured tracked and wheeled unmanned platforms since 2019 and builds to customer specification rather than from a fixed catalogue. If your programme needs partner branding, a re-enclosed machine or a payload the standard unit was never designed around, raise it at enquiry stage — it is a commercial and engineering question, and it is answered faster with your requirements on the table than with a catalogue comparison. If you are qualifying a supplier for a programme rather than buying a single unit, the useful opening conversation is not about the catalogue — it is about your acceptance criteria: what has to be proven, on what terrain, at what payload, and with what documentation. Bring those requirements to the enquiry and the configuration discussion becomes concrete much faster.

Frequently Asked Questions

What is the payload capacity of the 07-K20 tracked chassis?

400 kg. The chassis itself weighs 300 kg, so the combined operating mass of the platform is 700 kg before any sensors or electronics are added to the deck.

What are the dimensions?

1700 mm long × 1200 mm wide × 500 mm high, with 200 mm of ground clearance beneath the hull.

How long does it run on one charge?

The quoted run time is 0–8 hours on a 100 Ah battery. Real figures depend on payload, gradient, surface and duty cycle, and continuous climbing will sit toward the lower end of that range.

What terrain can it handle?

Gradients up to 40°, obstacles at least 300 mm high and 1000 mm wide, and ground clearance of 200 mm. Siting it on gravel, soil, sand, kerbs and loading ramps is within the quoted envelope.

How fast is it, and how far can it be controlled?

0–10 km/h is standard, with a 20 km/h configuration available on request. Remote control range is quoted at 0–1000 m.

Can the platform be customised for a specific payload?

Yes. Speed configuration, motor and gearing, deck provisions and the control arrangement are specified per project. Describe your payload, dimensions, terrain and control requirement in the enquiry and NexusUGV will come back with a configuration proposal.