Transporting massive steel and aluminum coils through a bustling stamping facility presents constant safety risks and workflow bottlenecks when relying on conventional overhead cranes or forklifts. Gradin designs and manufactures heavy-duty coil AGVs that completely automate this high-stakes process, seamlessly integrating with your existing facility controls to feed uncoiler stations with absolute precision. We custom-engineer the V-deck tooling and chassis to match your specific payload requirements, ensuring multi-ton rolls are cradled securely during every transit cycle. By operating continuously across multiple shifts, these autonomous vehicles establish a reliable, just-in-time material flow that guarantees your press lines never sit idle waiting for the next coil.
| Technical Category | Key Parameters | Standard Reference | Gradin Bespoke Options (ETO) |
| I. Core Performance | Rated Payload Capacity | 20,000 kg (20 Tons) | Scalable up to 150,000kg (150T+) |
| Navigation Technology | Laser SLAM / Hybrid | Landmark Recognition / SLAM + QR | |
| Travel Speed | 30 m/min (Full Load) | Adjustable VFD Speed up to 60 m/min | |
| Positioning Accuracy | ± 10 mm | High-Precision Laser Docking (± 2 mm) | |
| II. Structural & Material | Chassis Engineering | Welded Box Section | FEA-Optimized High-Tensile Steel |
| Load Interface | Fixed V-Saddle | Motorized Adjustable / Soft-Touch Cradles | |
| Wheel Technology | Heavy-Duty Polyurethane | Forged Alloy Steel with Precision Bearings | |
| Surface Treatment | Industrial Powder Coat | C5-M Corrosion-Resistant / Heat-Reflective | |
| III. Control & Intelligence | Control System (PLC) | Siemens S7-1200 | Siemens S7-1500 / Allen Bradley / 5G |
| Communication Protocol | Industrial Wi-Fi | Profinet / EtherCAT / TCP-IP Integration | |
| System Connectivity | Standalone | Full WMS / MES / Industry 4.0 Integration | |
| Battery Management | Lithium-Ion / Manual | Automated Wireless Charging / Opportunity | |
| IV. Environment & Safety | Operating Temperature | -10°C to +40°C | Extreme Heat (+80°C) or Foundry Grade |
| Safety Sensors | Dual Laser Scanners | 360° Safety Perimeter / Dynamic Field Muting | |
| Emergency Measures | Dynamic Braking | Fail-Safe Electromagnetic Load Locking | |
| Compliance Standard | CE / ISO 3691-4 | Full OSHA / ASME / AS3000 Compliance |
FEA-Validated Structural Integrity for Concentrated 150T Loading
Transporting massive coils creates extreme Point Loading that can compromise standard AGV chassis and factory floors. Every Gradin Bespoke Heavy Coil AGV is engineered using Finite Element Analysis (FEA) during the design phase to simulate eccentric loading and high-inertia transitions.
Zero-Deflection Chassis: We utilize reinforced high-tensile steel box-sections that prevent structural warping during high-torque starts and emergency braking.
Multi-Axle Load Distribution: Our engineering team optimizes the drive module layout to distribute 150T+ payloads evenly, protecting your facility’s structural floor integrity.
Dynamic Stability: This engineering-first approach ensures the vehicle maintains absolute structural safety during 360-degree rotations, even when carrying asymmetrical loads.
Precision V-Cradle Geometry and Surface-Safe Protection
Standard coil saddles often cause edge denting or surface scratches on high-value steel or aluminum. The Gradin Bespoke Heavy Coil AGV features an application-specific interface designed for asset protection.
Bespoke Saddle Geometry: Cradles are custom-machined to match your specific diameter range, ensuring the center of gravity remains centralized throughout the logistics flow.
Non-Marking Materials: We offer cladding options including high-density Nylon or UHMWPE, eliminating metal-to-metal contact and protecting sensitive automotive-grade coatings.
Automated Cradle Adjustment: For facilities with highly variable coil widths, we provide motorized adjustable saddles that automatically reconfigure based on real-time WMS data.
Industry 4.0 Intelligence and Integrated Material Flow
Heavy-duty coil logistics must function as a transparent node within the digital factory. Every Gradin Bespoke Heavy Coil AGV features an open-architecture control system designed for full factory integration.
Real-Time Data Handshake: Through Profinet, EtherCAT, or 5G connectivity, the AGV provides instant feedback on location and battery health to your Manufacturing Execution System (MES).
Autonomous Uncoiler Docking: Our control logic manages the millimeter-perfect alignment (±2mm) required to load coils directly onto uncoiler mandrels, eliminating manual crane risks.
Predictive Maintenance Monitoring: The system tracks motor torque profiles and cycle health, providing the data needed to prevent unplanned downtime in high-stakes 24/7 automated facilities.
[Steel & Aluminum Production] – High-Tonnage Rolling Line Logistics
The Challenge: Moving 100-ton coils between hot/cold rolling mills and storage bays in high-temperature, high-dust environments.
Gradin Solution: The Gradin Bespoke Heavy Coil AGV provides a rail-free material artery. Engineered with heat-resistant shielding and heavy-duty suspension, our AGVs maintain a constant material flow, replacing unpredictable overhead cranes and reducing operational risks.
[Automotive Stamping] – Quick Coil Change (QCC) Integration
The Challenge: Minimizing downtime on high-speed press lines where multi-ton steel coils must be delivered and aligned with extreme precision.
Gradin Solution: Our Bespoke Coil AGVs streamline the QCC process. By delivering coils directly to the press uncoiler and performing a synchronized digital handshake, the AGV reduces tool-change intervals and protects sensitive material coatings from surface damage.
[Heavy Paper & Packaging] – High-Volume Roll Handling
The Challenge: Transporting massive paper or film rolls that require high tonnage but a delicate touch to prevent core crushing or surface tearing.
Gradin Solution: We customize the Gradin Bespoke Heavy Coil AGV with soft-start/soft-stop drive logic and specialized contoured cradles. This ensures that even at maximum travel speeds, the inertia does not compromise the structural integrity of the sensitive material layers.
Redundant Safety Architecture and Dynamic Inertia Management
Safety in high-tonnage automated logistics is our most critical engineering priority.
Active 360° Safety Perimeter: Every Gradin Bespoke Heavy Coil AGV is integrated with dual-laser scanners that create programmable “warning” and “emergency stop” zones based on current speed.
Fail-Safe Braking Systems: We utilize electromagnetic braking logic calibrated for the specific inertia of your maximum payload (up to 150T+), ensuring a controlled stop even in total power failure scenarios.
Intelligent Load Monitoring: The PLC features active load-stability logic and integrated load cells—if any cargo shift is detected, the system executes an immediate controlled stop, meeting the most stringent global safety ratings (ISO 3691-4/CE).
For this heavy-duty series, we can engineer load capacities up to [300] tons, with platform dimensions and lifting heights customized to your operational envelope. Requirements exceeding our standard engineering matrix will undergo a Finite Element Analysis (FEA) by our engineering team to ensure structural viability before proposing a solution.
To initiate the engineering proposal, please provide the following baseline data:
Rated Load Capacity
Maximum Lifting Height & Closed Height
Platform Dimensions (L x W)
Duty Cycle (e.g., operational cycles per hour/day)
Environmental Conditions (e.g., indoor/outdoor, washdown, explosion-proof)
Pit depth or overhead clearance constraints
Yes. The control systems can be equipped with standard communication protocols (e.g., Profinet, Modbus, Ethernet/IP) utilizing [Siemens / Allen-Bradley / Omron] PLCs. This ensures seamless I/O signal synchronization with upstream/downstream conveyors, AGV/AMR units, and your central control room.
Every custom unit undergoes a mandatory Factory Acceptance Test (FAT) prior to dispatch. This includes continuous operational testing at 100% rated load, static overload testing at [120% / 125%] capacity, and the physical triggering of all mechanical anti-fall and hydraulic safety interlocks. FAT documentation and video proof are included in your engineering package.
Upon final approval of the General Arrangement (GA) drawings, the manufacturing lead time is typically 4 to 8 weeks. Oversized structural components are engineered with a modular design to fit into standard shipping containers (20FT/40HQ). On-site assembly utilizes pre-engineered bolted flange connections and heavy-duty aviation plugs, strictly eliminating the need for field welding.
We provide a standard [12/24]-month warranty covering the structural frame and primary hydraulic/electrical components. To minimize operational downtime, a comprehensive set of standard consumables (e.g., cylinder seal kits, travel switches, relays) is shipped alongside your equipment. During the warranty period, replacement parts for non-human-induced failures are dispatched via priority air freight (DHL/FedEx) within 48 hours.
Beyond the warranty, we guarantee lifetime engineering support. Your custom equipment's CAD drawings, electrical schematics, and BOM (Bill of Materials) are permanently archived in our system. This ensures you receive uninterrupted remote troubleshooting, maintenance guidance, and exact spare parts matching for the entire lifecycle of the equipment.
Gradin Machinery is a leading manufacturer specializing in aerial work platforms and hydraulic lifting solutions. With ISO & CE certifications, we provide safe, reliable, and customized equipment for global industrial needs
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