This explosion-proof 90-degree hydraulic tilter upends 4500 kg asymmetric cylindrical vessels between vertical and horizontal positions inside hazardous processing areas. The machine prevents rigging slip through spark-resistant lined V-saddles and flameproof ATEX-rated hydraulic power units.
Rated Payload Capacity: 4500 kg Safe Working Load (125% static proof-load tested to 5625 kg)
Chassis Floor Footprint: 2700 × 1500 × 1500 mm (L × W × H, surface-anchored L-frame)
Motion Profile: 0° to 90° tilt cycle in 50 to 60 seconds with proportional hydraulic deceleration
Working Surface: Dual 90-degree L-platens fitted with spark-resistant, anti-static V-cradle blocks
| Technical Parameter | Engineering Specification / Design Standard |
| Equipment Designation | Explosion-Proof 90-Degree Hydraulic Upender |
| Upender Kinematics | L-cradle 90-degree reciprocating hydraulic tilt geometry |
| Rated Load Capacity | 4500 kg Safe Working Load (125% static proof-test to 5625 kg) |
| Long Platform Deck | 2700 mm L × 1500 mm W cradle arm fitted with V-saddle |
| Short Platform Deck | 1500 mm L × 1500 mm W flanged mounting platen |
| Workpiece Diameter Span | Ø500 mm to Ø1600 mm cylindrical vessel outer diameter envelope |
| Angular Tilt Range | 0° to 90° stepless travel with intermediate position hydraulic lock |
| Turnover Cycle Time | 50 to 60 seconds across full 90-degree motion profile |
| Structural Steel Grade | ASTM A572 Grade 50 high-strength low-alloy structural plate |
| Steel Certification | Certified mill test reports supplied per EN 10204 Type 3.1 |
| V-Saddle Surface Liner | 20 mm conductive anti-static ESD pads (
per ISO 80079-36) |
| Short Deck Fixture | Machine-tapped blind-hole thread matrix matched to customer CAD |
| Hydraulic Pump Package | External split-mounted IECEx / ATEX Ex d IIB T4 pump skid |
| Electric Motor Specs | Ex db IIB T4 Gb flameproof motor, IP66 enclosure, 380V/400V 50Hz |
| Hydraulic Safety Valves | Dual counterbalance load-holding lock valves mounted to cylinder ports |
| Operator Controller | Intrinsically safe Ex ia IIC T4 3-meter pendant with inching toggle |
| Safety Interlocks | Phase-loss relay, earth-leakage breaker, dual explosion-proof E-stops |
| Equipment Coating Tone | Marine-grade polyurethane anti-corrosive finish, Dark Grey RAL 7021 |
| Governing Design Standard | ANSI B11.19 / ISO 80079-36 / ATEX Directive 2014/34/EU mandates |
Full-penetration submerged arc weldments unite heavy rolled steel plate into a rigid ASTM A572 Grade 50 L-frame cradle. This high structural section modulus stops chassis flex under 4500 kg off-center turning moments. Machined spherical pivot bearing housings press into the floor base to route radial and overturning forces into reinforced foundation pads. Mill test reports supplied per EN 10204 Type 3.1 certify plate yield strength above 345 MPa.
Precision CNC plasma cutting and face-milled mounting flanges ensure true angular alignment across the 2700 × 1500 mm deck. The V-cradle incorporates 20 mm conductive anti-static vulcanized elastomer pads (surface resistivity under
106 Ωper ISO 80079-36) to prevent surface scratching and eliminate electrostatic discharge sparks inside volatile paint zones. Heavy threaded clamp screws secure the hinged top arch to lock stepped vessel diameters through the full 90-degree motion arc.
A machined ductile-iron manifold block with internal cartridge cavities eliminates external plumbing leak paths. Dual single-acting push cylinders incorporate flange-mounted counterbalance load-holding valves bolted to the cylinder oil ports. These check valves prevent uncommanded gravity drift at any intermediate angle between 0° and 90°, holding circuit line pressure at 16 MPa under full 4500 kg payload.
Flameproof cast enclosures and sealed barrier conduits stop internal switchgear sparks from igniting external volatile vapors. The IECEx and ATEX-certified Ex d IIB T4 pump skid houses an IP66 explosion-proof electric motor, linked to the tilt cradle through seamless stainless steel hardlines. An intrinsically safe Ex ia handheld pendant provides low-speed jog positioning under NFPA 79 electrical codes and ANSI B11.19 safeguarding rules.
Petrochemical fabrication shops reposition thick-walled pressure tanks and reactor shells between vertical flange drilling and horizontal girth-seam welding stations. The cradle sustains a 4500 kg cylinder payload with center-of-gravity offsets up to 150 mm. Installation requires chemical anchor studs embedded into 25 MPa reinforced concrete floors, maintaining stability across plant temperatures from -15°C to +45°C.
Paint finishing bays handling volatile solvent vapors enforce spark-free tooling during composite pressure shell and gas turbine casing turnover. The conductive ESD-lined V-cradle grips coated alloy and carbon-fiber vessels without surface friction gouging or static spark generation. Heavy floor anchor plates secure the base frame onto level industrial slabs, built to operate within hazardous paint room thermal bounds of +5°C to +40°C.
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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