Heavy-Load Transfer Equipment
Heavy-Load Transfer Equipment: Types, Capacities, and How to Choose the Right One
Last updated: July 2026 FADA Engineering, heavy-load transfer systems and AGVs. 15+ years, 700+ projects across 20+ countries.
Heavy-load transfer equipment is a family of powered vehicles; transfer carts, straddle carriers, air-cushion systems, and modular transporters engineered to move loads from 5 to 400+ tons inside factories, ports, and shipyards. The right choice depends on four factors: load weight, route type (fixed rail or free-roaming), available floor clearance, and required positioning precision. This guide explains each equipment type and how to match it to your application.
What is a transfer cart?
A transfer cart is a self-powered platform vehicle that carries heavy or oversized loads horizontally between production stages, warehouses, or loading points. Unlike forklifts or overhead cranes, transfer carts distribute weight across a low, stable platform, making them suitable for loads that are too heavy, too wide, or too awkward for conventional handling. Modern units are battery-powered and can be operated by remote control, line following, or autonomous (AGV) navigation.
The main types of heavy-load transfer equipment
Trackless (Battery) Transfer Carts
Rail-free, battery-powered carts that move freely across a facility floor. Capacity ranges from 5 to 400 tons (11,000–880,000 lbs). Best when transport routes change frequently or when installing fixed rails is impractical. Customizable top tables, remote control, and autonomous operation make them the most flexible option in the lineup.
Rail Transfer Carts
Guided carts that run on fixed rails for repeatable, high-frequency point-to-point transport, also rated from 5 to 400 tons. Best for continuous production lines where the same route is used thousands of times — rail guidance delivers accurate, predictable positioning and high duty cycles.
Omnidirectional Transfer Carts
Carts with independent steering on every wheel, enabling lateral, diagonal, rotational, and 360° movement, rated up to 400 tons. Best for tight shop floors and precise positioning where a load must be maneuvered sideways or rotated in a confined space.
Low-Height Heavy-Duty Carts
Ultra-low-profile carts with a body height of just 550 mm (21.7 in) for slipping under large structures or working where headroom is minimal. They retain crab, diagonal, and 360° rotation and can be fitted with AGV or remote control.
Straddle Carriers
A straddle carrier is a tall, U-frame vehicle that lowers over a load, lifts it from above, and transports it independently no crane required. FADA units handle 5 to 100 tons and are the most cost-effective choice for containers, large molds, and oversized units in ports, yards, and logistics hubs. Their self-contained lifting reduces reliance on crane infrastructure.
Self-Propelled Modular Transporters (SPMT)
Multi-axle modular platforms for ultra-heavy or irregularly shaped loads beyond 400 tons. Modules can be coupled to scale capacity and adapt the deck to project cargo such as vessels, bridge sections, and large industrial structures.
Specialized and application-specific carts
For load-specific handling, dedicated designs outperform general-purpose carts: Coil Handling Carts (5–30 tons, ±90° turning, single-wheel steering) for steel coils; Cable Drum & Reel Transporters with indexing arms and motor-driven rollers for winding and unwinding; Die/Mold Transfer Carts for fast tool changes in press shops and foundries; and Platform Transporters for general flat-deck loads.
Air Cushion Vehicles
Systems that float a load on a thin film of compressed air, eliminating point wheel loading. Ideal for delicate, unbalanced, or oversized components — tanks, wind-turbine parts, pumps, transformers, and motors — that require precise, gentle positioning on smooth floors.
Marine handling systems
For shipyards and marinas, Boat Hoists (25–1500 tons) and Boat Trailers (15–300 tons) lift, transfer, and launch motor yachts, sailboats, and catamarans with load stability in demanding waterfront conditions.
Comparison table: transfer cart and transporter types at a glance
| Equipment | Typical capacity | Key movement / feature | Best-fit use |
|---|---|---|---|
| Trackless Transfer Cart | 5–400 t | Rail-free, battery, remote/autonomous | Flexible, changing routes |
| Rail Transfer Cart | 5–400 t | Guided on fixed rails, high duty cycle | Repeatable production-line transport |
| Omnidirectional Cart | 5–400 t | Lateral, diagonal, 360° steering | Tight spaces, precise positioning |
| Low-Height Heavy-Duty Cart | Heavy loads, 550 mm body | Ultra-low profile, crab/360° | Minimal clearance / headroom |
| Straddle Carrier | 5–100 t | Lifts load from above, no crane | Containers, yards, port logistics |
| SPMT | 400+ t | Multi-axle, modular, scalable | Ultra-heavy / project cargo |
| Coil Handling Cart | 5–30 t | ±90° turning, single-wheel steering | Steel coil transport |
| Air Cushion Vehicle | Application-specific | Floats load on air film | Delicate / unbalanced loads |
| Boat Hoist / Trailer | 15–1500 t | Lift, transfer, launch vessels | Shipyards, marinas |
How to choose the right transfer cart: 5 decision factors
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Load weight and dimensions. Match rated capacity to the heaviest load, with margin. Under 100 tons, standard transfer carts or straddle carriers usually suffice; above 400 tons or for irregular shapes, an SPMT is the right platform.
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Route type — fixed or flexible. If loads always travel the same path at high frequency, a rail transfer cart offers accuracy and durability. If routes vary, a trackless battery cart avoids the cost and rigidity of installed rails.
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Floor clearance and load height. When a load must pass under structures or stay as low as possible, a low-height heavy-duty cart (550 mm body) is purpose-built for the job.
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Maneuvering space. Crowded floors or the need to move sideways and rotate call for an omnidirectional cart with independent all-wheel steering.
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Load type and environment. Coils, cable drums, dies, containers, delicate assemblies, and vessels each have a dedicated design that outperforms a general-purpose cart on safety and cycle time.
Two further choices apply across every category: power source (lithium-battery systems remove trailing cables and enable free movement) and control mode (remote control, line following, or fully autonomous natural-navigation AGV, with optional IoT monitoring and load weighing).
Product selection by use case
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Moving containers in a port or yard → Straddle Carrier
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Shuttling parts along a fixed production line → Rail Transfer Cart
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Transport across a changing factory floor → Trackless Battery Transfer Cart
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Positioning a load precisely in a tight bay → Omnidirectional Cart
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Handling steel coils → Coil Handling Cart
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Changing dies or molds quickly → Die/Mold Transfer Cart
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Moving a transformer, tank, or wind-turbine component → Air Cushion Vehicle
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Lifting and launching a yacht or vessel → Boat Hoist or Boat Trailer
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Moving loads over 400 tons or oversized structures → Self-Propelled Modular Transporter
Frequently asked questions
What is the difference between a transfer cart and a straddle carrier?
A transfer cart carries a load resting on top of its platform and moves it horizontally. A straddle carrier straddles the load, lifts it from above with its U-frame, and transports it without a crane. Transfer carts suit in-plant point-to-point movement; straddle carriers suit container and oversized-unit handling in yards and ports.
What capacity transfer cart do I need?
Size the cart to your heaviest load plus a safety margin. FADA transfer carts cover 5 to 400 tons in standard ranges, and Self-Propelled Modular Transporters extend beyond 400 tons for project cargo. A load-and-route assessment defines the exact rating and platform.
Trackless or rail transfer cart — which is better?
Neither is universally better; they solve different problems. Rail carts win on repeatable, high-frequency transport along a fixed route with precise stops. Trackless battery carts win on flexibility, letting you change routes without rail infrastructure.
Can transfer carts operate autonomously?
Yes. FADA carts can be configured as AGVs using line following or natural (map-based) navigation, with IoT monitoring, HMI control, and load weighing. Autonomous operation removes the need for an on-board operator and integrates the cart into Industry 4.0 material flows.
Are electric transfer carts better than diesel equipment?
For indoor and yard transport, battery-electric transfer carts offer clear advantages: FADA's electric systems deliver up to 74–83% lower CO₂ emissions, roughly 3–4× higher energy efficiency, and 9–15 dB less noise than diesel equivalents, while eliminating exhaust in enclosed workspaces.
Choosing with FADA. With 700+ projects delivered across 20+ countries and certifications including TÜV, CE, and UL, FADA engineers each transfer solution to the load, site, and workflow. Reference clients span steel, automotive, energy, and shipyard sectors including Toyota, Ford Otosan, GE Vernova, and Rolls-Royce. Explore the full product range or contact our engineering team for a load-and-route assessment.