1. Design of electro-hydraulic fully sealed motor 2. Frequency of use: continuous rise and fall every 13 seconds 3. Power supply: AC220V 4. Working temperature: - 30 ~ + 50 5. Power: 370W 6. Protection level: IP68, normal operation when immersed in water and sediment 7. Rising speed: 150 mm / S (stroke: 600 mm, lifting time: 4S) 8. Descending speed: 250mm / S (stroke: 600mm, falling time: 2.2s) 9. Column diameter: 219mm (nonstandard fabrication allowed) 10. Stroke height: 600mm 11. Column wall thickness: 6 mm (non-standard production is allowed) 12. Operation noise: < 80dB