Every shop floor has that one move that matters: the load is too heavy to risk, the route crosses a clean production area, and the cart has to stop exactly where the operator wants it. For a leading industrial additive manufacturing company in Beijing, the lithium battery transfer cart described below now handles that move every working day — carrying large castings across a heavy workshop with no exhaust, no trailing cable, and no missed docking position.
About the Customer
The customer is one of China’s few industrial-grade 3D printing service providers that masters all four core technologies in-house: SLS, SLM, 3DP sand printing, and BJ binder jetting. Its equipment brand produced the country’s first commercial industrial-grade 3D printer in 1994, and its machines and parts now serve aerospace, power and energy, marine pump and valve, automotive, and rail transit customers. Along the way, the company has filed nearly 300 patents and other intellectual property applications.
Production at this scale means workpieces that are large, heavy, and expensive. Moving them between workstations is a material handling problem of its own — one that called for a purpose-built transfer cart rather than another forklift.
The Challenge
The heavy workshop needed a transfer cart that met four conditions at once:
- Stable handling under full load. Large castings are moved continuously, so the cart had to carry rated tonnage without flex, tipping, or drift.
- Precise positioning at workstations. Operators dock the cart with loading and unloading stations throughout the day. The stop position has to be repeatable so each docking lines up on the first attempt.
- A clean, fume-free environment. The workshop sits alongside precision 3D printing equipment. Engine-driven vehicles were ruled out from the start.
- Coil-friendly decking. Part of the workload is steel coil, which tends to roll and shift on a flat deck. The deck had to accept coils without damaging them.
The unit delivered to the customer is a rail-guided, heavy-duty lithium battery transfer cart with a 2500 × 1500 × 450 mm deck, configured around the actual duty it performs:
- Lithium battery power. The cart runs entirely on lithium batteries — no exhaust, no noise, no cable drum, and no overhead duct. It is cleaner than lead-acid alternatives and effectively maintenance-free, which is exactly what a long-hour production workshop needs.
- Wireless remote control. The operator drives from floor level with a handheld remote. Inching control provides fine movement for coil alignment and for final positioning at each station.
- V-frame deck with polyurethane liner. Two steel plates form the V, lining the coil up automatically and holding it centered. Removable end stops lock the load in place, and the polyurethane liner means coils never touch bare metal.
- Rail guidance for repeatable accuracy. Following a fixed track, the cart holds its line through the workshop and stops in the same position every cycle, which makes docking with workstations predictable and loading and unloading fast.
- Heavy-duty structure. The frame is built for castings, not just coils — stable under large tonnage, with good climbing performance on the shop-floor route.
-
The following video shows the test drive process of this vehicle.
Results and Customer Feedback
The cart has run in daily, high-frequency service since commissioning, and the customer’s assessment is direct:
- Durable and impact-resistant. The structure stays solid under continuous heavy loading — no rattles, no play, and no frame fatigue after months of use.
- A cleaner workshop. Electric drive produces zero exhaust, and the absence of engine maintenance keeps the floor free of oil and grime — a real advantage in a facility that runs precision 3D printing.
- Low maintenance, low failure rate. Few maintenance points and few faults. The cart suits the long-term, high-frequency duty cycle this workshop puts on it.
- Precise positioning. Rail guidance plus inching control lets the cart dock cleanly with each workstation and supports easy loading and unloading.
One honest limitation the customer points out: because the route is defined by the rail, changing the transfer path later means reworking the track — a point worth knowing before a layout is committed. If the floor plan is still evolving, the trackless version of the lithium battery transfer cart, with the same deck options and battery power but no rail, is worth comparing at the quotation stage.
Why a Lithium Battery Transfer Cart Fits This Application
For a workshop that runs heavy, continuous material flow indoors, the calculation is simple:
- No emissions, no noise. Clean for operators and safe to run next to precision equipment.
- Low maintenance. Fewer wear parts than engine-driven or lead-acid systems.
- Repeatable positioning. Rail guidance and inching control make station docking reliable, cycle after cycle.
- A deck that matches the load. V-frame for coils, flat deck for castings, or a combination on one cart.
Get a Layout for Your Application
Every transfer cart starts from the same questions: what are you moving, how heavy is it, and what route does it travel? Send us the load type, dimensions, maximum weight, and travel route — and note the deck requirements and whether the route is fixed or on a shared floor. We will return a layout drawing, a deck outline, and a power proposal (lithium battery, cable reel, or busbar) matched to your site.
