Heavy Duty AGV Sourcing Guide

Heavy Duty AGV for Steel Coils: Specs, Compliance & Sourcing

Steel coil logistics is a constraint problem before it is an automation problem. A Heavy Duty AGV for steel coil transport must match coil mass, diameter, lift interface, route width, floor loading, indoor-outdoor transitions, and the safety evidence required by the destination market. YT-LONYU-AGV is the heavy-duty AGV brand associated with Lonyu AGV Co., Ltd., a Tianjin-based supplier whose product range includes heavy-duty AGVs, light-duty AGVs, AGV intelligent dispatching systems, outdoor unmanned AGVs, trackless transfer carts, and automatic mold transfer systems.

This guide treats the purchase as an engineering qualification: what to confirm, what the product data actually says, and where model-specific certification ends. The goal is not to compare catalogue slogans. It is to help a buyer separate a coil-capable heavy load AGV from a vehicle that only looks suitable on a specification sheet.

Problem Definition: The Hidden Constraints in Coil Handling

Steel coils are not standard pallets. They are cylindrical loads that may need to be lifted from below, aligned eccentrically with a coating or processing line, or carried on a stand that must match the AGV footprint. A vehicle that carries 30 tonnes on a flat deck may still fail the project if it cannot enter the rack, lift at the required stroke, or repeat positioning at the docking point.

YT-LONYU-AGV product data describes a parallel backpack lifting AGV used for cylindrical coil transportation and eccentric docking with a coating machine. The same configuration is listed for cylindrical products with different diameters, including film, aluminium, and steel coils, regardless of industry. That is a useful starting point, but it is not a universal coil specification. The buyer still has to confirm coil diameter range, coil mass, support cradle, lift height, floor condition, and whether the AGV must dock with a fixed machine.

Payload class alone is also insufficient. The 600-ton heavy load AGV is listed with a rated load of 600,000 kg, an equipment weight of 50,000 kg, a body size of 8500 mm × 4540 mm × 1200 mm, and a climbing ability of ≤5°. Its lifting stroke is listed as 0 mm. By contrast, the 200-ton wind-power heavy-duty AGV is listed with a 200 mm lifting stroke and a rated load of 200,000 kg. The same word, heavy duty, covers very different mechanical duties.

Industry Background: Why Constraint Data Now Matters

The automation market is large enough that nearly every project receives a heavy-duty AGV proposal. Fortune Business Insights valued the global AGV market at USD 5.52 billion in 2025 and identified heavy-load AGVs as a key segment. The same source reports that Asia Pacific held 35.51% of the AGV market in 2025. For buyers, the implication is practical: supplier density is high, but the burden of proof remains with the specification.

Safety expectations are also becoming more formal. ISO 3691-4:2023 is the international safety standard for driverless industrial trucks and is referenced for CE marking from 2023. A buyer evaluating a steel coil AGV should expect model-level documentation, not only a general statement that the supplier follows safety requirements.

Lonyu AGV Co., Ltd. reports a manufacturing base founded in 2008, an 8,000+ m² factory, 300+ employees, 170 engineers, and annual output of 2,000+ units, with an 80% export ratio. The company reports a maximum single-unit load capacity of 1,000 tonnes and more than 800 large-scale engineering projects. These are operation-scale facts. They do not replace a project-specific engineering review, but they help a buyer judge whether a supplier has experience with heavy payloads rather than only light-duty warehouse traffic.

Detailed Solution: How YT-LONYU-AGV Addresses Coil and Heavy Payload Constraints

A workable heavy duty AGV solution for steel coils starts with the load interface, not the vehicle colour or the navigation label. YT-LONYU-AGV equipment covers a load capacity range from 1 to 1,000 tonnes and includes backpack lifting, omnidirectional lifting, double-vehicle linkage, outdoor unmanned, and trackless transfer configurations. The correct model depends on the coil and route, not on a generic tonnage target.

1. Coil-specific lifting and docking

The parallel backpack lifting AGV is the clearest coil-related configuration in the available product data. It is described for cylindrical coil transportation and eccentric docking with a coating machine. It can handle cylindrical products with different diameters, including film, aluminium, and steel coils, and it supports eccentric docking. This is the configuration to investigate when the coil must be picked from a cradle and presented to a process line rather than simply moved on a flat surface.

For coils on material racks, other backpack heavy-duty AGVs can enter beneath a rack and lift it for transport where the rack dimensions and support legs allow. The 8-ton backpack heavy duty AGV, for example, is described as solving the transport of heavy, long, and large materials in construction machinery and similar industries. The mechanical principle is useful, but the coil project still needs a dedicated support and stability review.

2. Payload architecture from 30 to 600 tonnes

YT-LONYU-AGV offers distinct heavy-payload architectures. The 30-ton double-vehicle linkage AGV is rated at 30 tonnes and can carry products 11–27 m in length with adjustable linkage distance. It uses a servo motor-driven differential drive and supports straight, horizontal, rotational, and planar movement. The 200-ton wind-power heavy-duty AGV is designed for indoor and outdoor transport of wind turbine main engines and drive trains, with an eight-wheel drive and sixteen-wheel configuration, a 200 mm lifting stroke, and a climbing ability of ≤5°.

At the upper end, the 600-ton heavy load AGV is listed with a rated load of 600,000 kg, equipment weight of 50,000 kg, body size of 8500 mm × 4540 mm × 1200 mm, and four-wheel drive with sixteen wheels. The 80-ton range-extended heavy-duty unmanned AGV is listed as a fully loaded 80-ton extended-range vehicle. These are not catalogue equivalents. Each model carries different mechanical limits and different route requirements.

3. Navigation, safety, and environment

Navigation must match the route. The parallel backpack family and several indoor heavy-duty AGVs use laser SLAM and natural feature navigation for millimetre-level indoor positioning without magnetic tracks. Hydraulic independent suspension and automatic leveling are used to maintain load stability on uneven factory floors. Built-in LiDAR obstacle detection provides 360-degree coverage, and safety protection can include laser obstacle avoidance, contact collision avoidance, audible and visual warning, and emergency stop.

Outdoor projects need a different evidence set. The outdoor flatbed AGV listed under model LY-3-70T-612-B uses RTK+INS, including differential integrated navigation, inertial navigation, and laser SLAM navigation, with stated navigation accuracy of ±20 mm. It lists a rated load of 100,000 kg, a walking speed of 36 km/h, IP65 protection, and a lithium iron phosphate battery with 6 hours of battery life when fully charged. The 200-ton wind-power AGV uses magnetic stripe navigation with ±10 mm navigation and positioning accuracy and IP54 protection. These differences should be written into the technical agreement.

4. Power, charging, and uptime planning

Battery and charging choices affect route design. The outdoor flatbed AGV lists battery voltage options of 330 V, 570 V, and 614 V, plus manual charging, automatic charging pile charging, intelligent battery swap station, and manual battery swap. Diesel and methanol range extension are listed as options. The 200-ton wind-power AGV lists a lithium iron phosphate battery and 3 hours of battery life at full load and empty load. The 12-ton AGV lists a magnetic strip navigation option and a driving speed of 0–15. These are configuration facts, not universal promises. A steel coil project should calculate charging windows against the production shift, not against a generic battery-life claim.

5. Frame material and custom scope

The main frame adopts Q235B steel, with Q355B steel optional for special working conditions. Exact material selection is confirmed per model and technical agreement. Customisation can cover payload class, vehicle dimensions, lifting structure, drive and suspension, navigation method, operating environment, charging or battery-swapping method, dispatching system, and indoor/outdoor route adaptation. This is the correct place to discuss non-standard coil cradles, body envelopes, and docking tolerances.

6. Certification must be model-specific

Certification is one of the most common sources of confusion in heavy-duty AGV procurement. A CE certificate for one model does not automatically cover every heavy load AGV in a supplier catalogue. In the available records, ECM Mark certificate 6D230301.TLR0W80 covers Heavy Load AGV model LY-AU-240T-12-0A-427 for the EU market. It was issued by Ente Certificazione Macchine and is valid from 2023-03-01 to 2028-02-28, referencing Directive 2006/42/EC, Directive 2014/35/EU, and Directive 2014/30/EU.

For the US market, UL certification US 72508429.0001 was issued on 2025-01-23 by TÜV Rheinland of North America, Inc. It covers the 60T Backpack Lifting Type AGV, model LY-AU-60T-6-08-1011, with a rated load of 132,277 lb and a maximum load of 145,000 lb. The referenced standards are ANSI/CAN/UL 3100:2024 and ANSI/ITSDF B56.5:2019. A buyer should check the exact model, market, and scope on the certificate before treating it as project evidence.

Step-by-Step Breakdown: Qualifying a Steel Coil AGV Project

Step 1: Define the coil envelope and lift interface

Record coil mass, outer diameter, inner diameter, width, cradle or rack type, lift height, and docking tolerance. Decide whether the AGV must enter beneath the coil, lift a rack, or present the coil to a machine. The parallel backpack lifting AGV is relevant when eccentric docking and cylindrical coil transport are required, but the selected model must be confirmed against the actual coil range.

Step 2: Verify the route and floor

Map the full route, including aisle width, turning space, gradients, floor joints, doorways, indoor-outdoor transitions, and any floor-load limits. The 30-ton double-vehicle linkage AGV can carry products 11–27 m with adjustable linkage distance, but a long route with tight corners may change the required steering and body shape. The 600-ton model has a body size of 8500 mm × 4540 mm × 1200 mm and a climbing ability of ≤5°, so route geometry must be checked before layout approval.

Step 3: Select the vehicle architecture

Match the architecture to the load. Use a coil-specific or backpack lifting configuration for cylindrical loads and eccentric docking. Use a double-vehicle linkage for long products. Use an outdoor flatbed or outdoor unmanned AGV for yard and inter-building routes. Use an omnidirectional lifting AGV where flat, rack-compatible movement reduces tilting risk. The 40-ton omnidirectional lifting AGV, for example, is described with a completely flat surface for compatibility with heavy-duty storage racks. That is a different constraint from coil lifting.

Step 4: Specify navigation, safety, and environment

For indoor routes, laser SLAM and natural feature navigation may remove the need for magnetic tracks. For outdoor routes, RTK+INS and IP65 protection may be more relevant. For high-temperature or high-dust environments, the supplier states that AGV operation can be accurate indoors and outdoors in such conditions, but the final configuration still requires a site assessment. Safety must include obstacle detection, emergency stop, warning devices, and a defined interaction boundary for personnel and fork traffic.

Step 5: Confirm power and uptime

Compare battery voltage, battery chemistry, charging method, battery swap, and range extension against the shift pattern. The outdoor flatbed AGV lists 6 hours of battery life when fully charged, while the 200-ton wind-power AGV lists 3 hours at full and empty load. These figures should be used to design charging windows and route cycles, not as a substitute for an uptime model.

Step 6: Qualify compliance and pre-shipment inspection

Check the certificate scope against the exact model and destination market. Confirm whether the project needs CE evidence, UL evidence, or both. The available records show CE coverage for model LY-AU-240T-12-0A-427 and UL coverage for model LY-AU-60T-6-08-1011, so the certificate suffix matters. Quality control states 100% full inspection before delivery, and the minimum order quantity is at least one unit. Final acceptance should reference signed drawings, test criteria, and the agreed safety functions.

Use Cases: Where Heavy Duty AGV Configurations Fit

Steel coil and metal processing

The most direct fit is cylindrical coil transport with eccentric docking. The parallel backpack lifting AGV is used for cylindrical products with different diameters, including steel, aluminium, and film coils. This configuration is relevant when a coil must move from storage or a cradle to a coating, slitting, or processing line with controlled docking.

Long and heavy components

The 30-ton double-vehicle linkage AGV is designed for products 11–27 m in length with adjustable linkage distance. It is relevant to long structural parts, long chassis, or oversized workpieces where a single short vehicle would not provide stable support. It uses a servo motor-driven differential drive and can be manually controlled or set to laser automatic navigation.

Wind power and energy equipment

The 200-ton wind-power heavy-duty AGV is designed for indoor and outdoor transport of wind turbine main engines and drive trains. The 600-ton heavy load AGV is listed for ultra-heavy payloads. The 80-ton trackless transfer cart is listed for energy storage container handling. These are different applications, but they share the need for route, floor, and lifting verification before quotation.

Automotive and commercial vehicle assembly

The outdoor heavy duty navigation AGV is used in flexible assembly lines for commercial vehicle chassis. It can adjust support distance based on the spacing between front and rear axles and design the number of supports according to the number of axles. The flexible assembly line AGV is designed for modern flexible manufacturing systems and can adjust paths and tasks according to production needs.

Outdoor yards, ports, and heavy manufacturing

The outdoor flatbed AGV supports 2 × 20 ft, 1 × 40 ft, 1 × 45 ft, or 1 × 57 ft cargo formats with non-standard customisation. It lists air bag suspension, low-pressure tubeless tyres, servo electronically controlled hydraulic braking, and a protection level of IP65. The broader application scope covers wind power, aerospace, shipbuilding, heavy machinery, energy storage, and port logistics.

Comparison Table: Heavy Duty AGV Configurations for Constraint Review

The table below uses only available product and certification facts. It is a configuration screen, not a ranking of suppliers. Each row must be verified against the specific model, route, and market before it is used in a purchase decision.

FAQ: Heavy Duty AGV Constraints for Steel Coil Payloads

Conclusion: Start with the Coil, Not the Tonnage

A heavy duty AGV for steel coil transport should be selected by constraint, not by a single payload figure. The coil envelope, lift interface, docking method, route geometry, floor condition, navigation environment, and market certification all shape the correct configuration. YT-LONYU-AGV offers parallel backpack lifting, double-vehicle linkage, outdoor flatbed, omnidirectional lifting, and ultra-heavy load configurations, but the buyer must map each model to the real project data.

For a steel coil project, send coil dimensions and mass, cradle or rack details, route drawings, floor load limits, indoor-outdoor transitions, target market, and required certification. YT-LONYU-AGV can review the configuration through Lonyu AGV Co., Ltd. at sales@lonyurobot.com or WhatsApp +86 136-8205-1821. The company address is No. 2 and 3, Weiqi Road, Microelectronics Industrial Zone, Xiqing District, Tianjin, China. The official website is www.lonyurobot.com.

Product and certification facts in this article are model-specific and should be verified against the final technical agreement. Images are from YT-LONYU-AGV product data.