Flipping heavy geological rocks manually carries extreme safety and structural risks. The Mechanical Rollover Upender solves this by providing 100% oil-free, chain-driven 90° rotation, designed specifically to withstand harsh impact testing.
High-Impact Steel Decking: Resists localized crushing forces during heavy geological rock load-shifting.
Modular Width Adjustability: Expands the platform footprint on-demand via bolt-on wing panels.
Zero-Fluid Mechanical Drive: Relies on a robust double-strand chain powertrain, eliminating hydraulic leak hazards.
| Parameter | Technical Specification | Customization Options & Details |
| Rated Load Capacity | 10,000 kg (10 Tons) | Fully engineered series up to 30 Tons for extra-large blocks |
| Tilting Angle | 0° to 90° | Mechanically limited by heavy-duty physical steel stops |
| Platform Dimensions | 1,500 mm x 1,500 mm + 1,500 mm x 1,500 mm | Expandable to 1,700 x 1,700 mm via bolt-on 200 mm wing plates |
| Drive Mechanism | Electric Motor & Dual Roller Chains | 100% oil-free, mechanical chain-drive structure (Cylinder: None) |
| Electric Motor Power | 4 kW | AC380V, 50Hz, 3-Phase standard (Industrial electromechanical brake) |
| Powertrain Chain Spec | 20A-2 Double-Strand | Heavy-duty alloy steel, high fatigue resistance under tension |
| Table Frame Tubing | J200 x 100 x 8 mm | Heavy structural rectangular tube and C-frame rocker ribs |
| Table Surface Plate | 8 mm | Heavy carbon steel plate (Optional protective wood or PU lining) |
| Forklift Interface | Detachable Rectangular Tubing | Bolt-on design; can be removed when a flush platform is required |
| Control Method | Wireless Remote + Tethered Panel | RF industrial remote control system with emergency stop latch |
High-Torque Electric Brake Motor: Powered by a 4 kW electric gearmotor coupled with a dual-strand 20A-2 heavy-duty roller chain.
Circular Rocker Kinematics: Rolls smoothly along heavy-duty machined steel guide tracks on a circular segment bed, minimizing kinetic friction.
Step-less Constant Velocity: Eliminates hydraulic pressure surges and mechanical drift, maintaining a highly uniform angular speed during the 90° flip.
Heavy J200x100x8mm Framing: The platform framework and outer rocker ribs are welded from heavy structural steel rectangular tubing.
Reinforced 8mm Armor Plate: The 1500 x 1500 mm dual-platform layout is sheeted with 8 mm thick carbon steel to withstand sudden point-load shifting.
Cross-Braced Support Ribs: Features multiple lateral and diagonal structural stiffeners to absorb intense mechanical vibrations during destruction testing.
Detachable Forklift Channels: Fitted with heavy-duty rectangular steel sleeves bolted to both platform plates to receive forklift forks.
Removable 200mm Expansion Wings: Comes with bolt-on wing plates that widen the default bed dimensions to 1700 x 1700 mm.
Crane-Free Facility Relocation: Facilitates fast, bolt-on configuration adjustments and easy transport between different testing bays via standard forklifts.
RF Wireless Remote Integration: Outfitted with a handheld industrial radio transmitter for remote angular adjustment and emergency stop execution.
Dual Electromechanical Limit Switches: Features redundant limit sensors to prevent physical over-travel and align the decks accurately at 0° and 90°.
Automated Motor Brake: The integrated electromagnetic motor brake engages instantly upon power loss, mechanically locking the cradle in position.
Operating Environment: Geomechanical research centers and mining engineering laboratories.
Target Material / Load: Natural mountain granite blocks, dense core specimens, and thick bedrock sections.
Resolved Pain Point: Safely rotates massive, highly irregular stone test specimens 90 degrees to align them perfectly with experimental compression cylinders, avoiding the risk of manual shifting or sample fractures.
Operating Environment: Concrete precast factories, masonry processing sheds, and civil test fields.
Target Material / Load: Structural concrete blocks, precast masonry walls, and finished stone slabs.
Resolved Pain Point: Flips fragile precast specimens 90° onto handling lines, removing the hazardous use of overhead crane slings which often chip the edges of finished stone.
Operating Environment: Impact-testing labs and civil engineering destruction bays.
Target Material / Load: Heavy simulated masonry barrier walls and reinforced composite block units.
Resolved Pain Point: Angles constructed wall segments precisely to 90 degrees, positioning the impact face perpendicular to pneumatic hammers or dynamic test impactors.
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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