To meet the rigorous technical demands of the UAE industrial sector, our engineering team developed a customized SL-10T-4L (Four-Linkage) scissor platform. The solution prioritized structural rigidity and specialized hydraulic management.
1. Structural Reinforcement and Quad-Scissor Geometry
The core of the lift utilizes a four-stage scissor linkage design. This configuration allows for a compact closed height of 1050 mm while achieving a 3200 mm stroke. The scissor arms are constructed from 250mm x 100mm x 6mm rectangular tubing, providing superior torsional resistance compared to standard flat-bar steel. This specific material choice was critical to managing the 4-ton lateral force requirement without structural deflection.
2. Specialized Hydraulic System and Fluid Integrity
The hydraulic circuit was designed for high-frequency operation using an 11kW heavy-duty motor and a 380V/50Hz power system tailored for the UAE electrical grid. A critical technical inclusion was the requirement for hydraulic fluid cleanliness. Following the NAS1638 Class 7 standard, the entire system underwent chemical pickling (acid washing) according to CB/T3760-1996 protocols to eliminate internal contaminants. The oil tank features integrated temperature sensors and an air-blast cooler to ensure stable viscosity in the Dubai heat.
3. Electrical Systems and IP56 Compliance
Given the environmental challenges, the control system was housed in an IP56-rated enclosure. The electrical architecture utilizes Schneider and Siemens low-voltage components, ensuring long-term reliability and local availability of spare parts in the GCC region. The system includes an integrated PLC that manages:
-
Automatic stop at upper and lower limits via high-precision limit switches.
-
Synchronized dual-cylinder operation.
-
Emergency stop functionality with a non-automatic reset safety relay.
4. Safety Redundancy and Maintenance Design
The platform is equipped with several “Fail-Safe” features. To prevent uncontrolled descent, specialized pressure-compensated burst valves are mounted directly to the cylinder ports. The platform surface consists of 6mm anti-slip chequered plate to ensure traction during the high-torque loading cycles. For maintenance, the design includes mechanical locking bars that support the full 10-ton weight, allowing technicians to work safely beneath the structure.
