This Automated Coil RGV acts as a high-capacity horizontal shuttle designed for the rapid and precise transfer of heavy metal coils between storage bays and processing lines. Built by Gradin as a custom engineered-to-order (ETO) solution, the vehicle is equipped with a reinforced V-shaped deck or specialized saddle to securely cradle steel, aluminum, or copper coils, preventing movement or surface damage during high-speed transit. Unlike free-roaming AGVs, this RGV operates on a dedicated rail system, allowing for higher load capacities and much faster cycle times in 24/7 industrial environments. Engineered for seamless integration with uncoilers, slitters, and packaging lines, the system utilizes advanced laser sensors and PLC-based synchronization to ensure sub-millimeter positioning accuracy. By automating the high-risk movement of multi-ton coils, this RGV provides a stable, vibration-free interface that maximizes operational safety and logistical efficiency in metal processing and automotive stamping facilities.
| Technical Category | Key Parameters | Standard Reference | Gradin Bespoke Options (ETO) |
| I. Core Performance | Rated Payload Capacity | 20,000 kg (20 Tons) | Scalable 10,000kg to 60,000kg (60T+) |
| Max Travel Speed | 40 m/min | High-Speed VFD up to 80 m/min | |
| Positioning Accuracy | ± 5 mm | Laser/Encoder Fine-Tuning (± 2 mm) | |
| Duty Cycle | 16 Hours/Day | 24/7 Continuous Heavy-Duty Rating | |
| II. Structural & Material | Chassis Engineering | Welded Box Section | FEA-Optimized High-Tensile Steel |
| Cradle/Saddle Design | Fixed Steel V-Block | Motorized Adjustable / Soft-Touch Cradles | |
| Surface Protection | Bare Metal | Nylon / Polyurethane / Non-Marking Rubber | |
| Wheel Engineering | Cast Iron | Forged Steel with Tapered Roller Bearings | |
| III. Control & Intelligence | Control System (PLC) | Domestic Standard | Siemens S7-1500 / Allen Bradley / Profinet |
| Drive System | AC Induction Motor | Synchronized Servo Drive / SEW Eurodrive | |
| Communication | Wi-Fi / Radio | 5G / EtherCAT / Optical Data Integration | |
| System Connectivity | Standalone | Full WMS / MES / SCADA Integration | |
| IV. Environment & Safety | Operating Temperature | -10°C to +45°C | Extreme Heat (+80°C) or Foundry-Grade |
| Safety Sensors | E-Stop / Bumpers | SICK Laser Scanners / Ultrasonic Obstacle | |
| Power Supply Mode | Cable Reel | Busbar / Lithium Battery / Wireless Power | |
| Compliance Standard | CE / ISO 9001 | Full OSHA / ASME / AS3000 Compliance |
FEA-Validated Structural Integrity for Extreme Point-Loading
Handling 60-ton coils creates immense concentrated stress on the chassis and rail-wheel assemblies. Every Gradin Automated Coil RGV undergoes rigorous Finite Element Analysis (FEA) during the design phase to simulate the specific center-of-gravity shifts of your cargo.
Stress Management: We utilize reinforced box-section high-tensile steel to prevent chassis deflection during high-torque acceleration.
Pivot Point Durability: Wheel modules are engineered with oversized bearings designed for continuous heavy-duty duty cycles.
Dynamic Stability: This engineering-first approach ensures a zero-fatigue structural lifespan even in the high-impact environments of steel and aluminum mills.
Precision Saddle Geometry and Surface-Safe Technology
Standard coil saddles often lead to edge damage or surface scratches on high-value materials. The Gradin Automated Coil RGV features an application-specific cradle design tailored to your load profile.
Bespoke Geometry: Cradles are custom-machined to your exact coil diameter range, ensuring the load remains centralized and stable during 360-degree rail transitions.
Material Protection: We offer cladding options including high-density Nylon or UHMWPE, which eliminates metal-to-metal contact and protects sensitive automotive-grade coatings.
Motorized Adjustability: For facilities with highly variable coil sizes, we provide motorized adjustable saddles that automatically reconfigure based on WMS data inputs.
Intelligent Rail Navigation and Industry 4.0 Connectivity
In automated manufacturing, material handling must be data-driven. Every Gradin Automated Coil RGV is built with an open-architecture control system designed for seamless factory integration.
Synchronized Motion: Utilizing Siemens S7-1500 PLC logic, the RGV achieves millimeter-perfect docking (±2mm) with uncoilers, stationary saddles, or AGVs.
Autonomous Logic: Through Profinet or 5G connectivity, the shuttle communicates real-time status to your MES (Manufacturing Execution System).
Predictive Diagnostics: The system monitors motor torque, travel speed, and battery/power health, providing data for predictive maintenance and ensuring zero unplanned downtime in 24/7 production environments.
[Steel & Aluminum Mills] – High-Volume Rolling Line Shuttling
The Challenge: High-temperature environments and massive tonnage create unpredictable bottlenecks between the rolling mill and storage bays.
Gradin Solution: Our Bespoke RGV Systems provide a high-speed, rail-guided bridge. With heat-resistant components and heavy-duty chassis, they maintain a constant material flow where manual forklifts fail.
[Automotive Stamping] – Quick Coil Change (QCC) Integration
The Challenge: Downtime during coil changes on a high-speed press line can cost thousands per minute.
Gradin Solution: The Gradin Automated Coil RGV streamlines the uncoiler loading process. By performing a digital handshake with the press control system, the RGV delivers and aligns the next coil with millimeter precision, reducing changeover time by up to 40%.
[Heavy Paper & Packaging] – Sensitive Roll Handling Logistics
The Challenge: Handling massive paper rolls requires high tonnage but a delicate touch to prevent core crushing or surface tearing.
Gradin Solution: We customize these RGV units 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 paper layers.
Redundant Safety Architecture and Dynamic Monitoring Logic
Safety in high-tonnage automated logistics is our most critical engineering priority.
Multi-Layer Obstacle Detection: Every Gradin Automated Coil RGV is integrated with industrial-grade laser scanners that create a 360-degree safety perimeter.
Load Stability Monitoring: Integrated load cells provide real-time monitoring of coil weight and positioning. If any load shift is detected, the PLC executes a controlled halt.
Emergency Fail-Safes: We offer mechanical safety bumpers and acoustic-optic warning signals, ensuring your automated system meets the most stringent global safety ratings (ISO 3691-4/CE) while protecting your personnel and facility assets.
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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