This reference 50-ton transformer coil upender uses a mechanical drive to rotate power-transformer coils safely between horizontal and vertical positions through a controlled 90° cycle. Load capacity, platform dimensions, coil supports, restraints and controls are engineered for each project.
The following specifications are from the 50-ton reference project shown on this page. Final capacity, dimensions, drive system, supports and controls can be configured for each application.
| Technical Parameter | Specification Value | Customization Status |
| Equipment Purpose | Power Transformer Coil 90° Upending | Non-Standard Customization Available |
| Equipment Type | 90° Mechanical Heavy-Duty Upender | Non-Standard Customization Available |
| Rated Load Capacity | 50000 kg (50 Tons) | Fully Customizable to Client Specifications |
| Rotation / Tilting Angle | 90 Degrees (90° Mechanical Tilting) | Fully Customizable to Client Specifications |
| Drive Motor & Brake | SEW Brake Motor with Mechanical Self-Locking | Standard Configuration / Custom Brands Available |
| Drive Transmission | 16A-2 Double-Strand Heavy-Duty Chain | Heavy-Duty Mechanical Transmission Standard |
| Speed Controller | Mitsubishi VFD Soft Start / Stop | Fully Customizable to Client Specifications |
| Electrical Brand | Schneider Electricals with Overload Relays | Fully Customizable to Client Specifications |
| Platform Frame & Plate | J160805 Steel Tube + >=6mm Solid Steel Plate | Structural Heavy-Duty Standard |
| V-Block Protection Layer | 2 Rows (6 Blocks Total) Lined with 15mm Phenolic Cloth | Premium Non-Marring Protection Standard |
| Max Coil Dimensions | Max Outer Diameter 1400mm, Total Height up to 2500mm | Fully Customizable to Client Specifications |
| Installation & Height | Pit Mount Flush Deck (Self Height <=850mm, Height Error <3mm) | Fully Customizable to Client Specifications |
| Guardrail & Safety Gate | 1200mm High Fence (4000x1700mm) with Interlocked Gate | Fully Customizable to Client Specifications |
| Color & Finishing | RAL 1023 Traffic Yellow Baking Paint | Fully Customizable to Client Specifications |
Built to handle heavy power transformer windings up to 5000kg, the upender frame is fabricated from J160805 structural steel tubing with a platform deck plated in >=6mm solid steel. Mechanical tilting is driven by an SEW brake motor transmitting torque through 16A-2 heavy-duty double chains, achieving mechanical self-locking at any angle. One platform side incorporates a flat bed for coil pallets (1200x1200mm, 1100x1100mm, 800x800mm) fitted with adjustable tilt-preventing support claws. The perpendicular side features 2 rows of adjustable V-blocks (6 blocks total with 155-degree lower and 95-degree upper angles) lined with 15mm thick phenolic cloth padding to protect wire insulation. Finished in RAL 1023 Traffic Yellow and pit-installed flush with the floor (<3mm height deviation). Mechanical design aligns with OSHA machine guarding protocols.
Designed for low-maintenance industrial service, drive chain sprockets and SEW reduction gearboxes are pre-lubricated for extended operational lifespans. T-slot V-block guide tracks allow quick adjustment for varying coil diameters up to 1400mm without specialized tooling. Schneider electrical components housed in a protected enclosure feature overload and short-circuit relays. Includes a 12-month structural and mechanical warranty with remote technical support.
Operational flexibility is achieved through dual operating modes managed via Mitsubishi VFD control. Operators toggle between Inching mode (hold-to-run motion with immediate brake holding upon release) and Automatic mode (one-touch automated 90-degree upending sequence). Pit-flush horizontal resting ensures zero elevation obstacle for forklift pallet placement, as featured in our Coil & Roll Tilters.
Upender safety complies with global ANSI industrial machinery compliance protocols.
Mechanical Self-Locking Brake: SEW electro-mechanical brake holds 5000kg payloads securely at any tilting angle.
Gate Interlock Disconnect: The 1200mm perimeter guardrail access gate automatically halts upender movement when opened.
Foldable Anti-Tipping Claws: Adjustable support claws clamp coil pallets to prevent displacement during 90-degree motion.
Audio-Visual Alarm Tower: Integrated beacon and horn sound continuously throughout the upending cycle.
Motor Overload Protection: Schneider overload sensors immediately cut drive current if weight limit exceeds 5000kg.
Power Transformer Coil 90° Upending: Tilting heavy copper and aluminum transformer coils from horizontal winding arbors to vertical core assembly stations.
Heavy Steel & Aluminum Coil Handling: Rotating palletized metal coils 90 degrees for slitting or payoff reel loading.
Electric Motor Stator & Rotor Tilting: Safe re-orientation of large industrial motor stators without damaging winding insulation.
Heavy Mold & Die 90° Flipping: Repositioning heavy injection molds and stamping dies for maintenance, as described in Electric & Hydraulic Tilters .
High-Voltage Reactor Coil Processing: Handling tall reactor coils up to 2500mm overall height with lead-out busbar protection.
Paper Roll & Film Reel Re-Orientation: Converting horizontal rolls to vertical eye-to-sky storage orientation.
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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