Movement of rising bollard comparison between tongdazhi and other suppliers
Movement of rising bollard comparison between tongdazhi and other suppliers
| Item | Comparison item | TDZ bollard | Other supplier's bollard |
| Movement | ||
| Motor | Electromechanical and hydraulic integrated movement, professionally designed waterproof high-quality motor,， | Ordinary Motors in the Market |
| Motor special waterproof connector | Ordinary waterproof connector | |
| Motor cable: special cable for oil-proof, waterproof, high-temperature resistance and high toughness | Ordinary silicone cable | |
| Oil tank | All imported seals, stainless steel nuts, cylinder rod roughness 0.2, cylinder tube honing, cylinder rod QPQ treatment | Domestic seals, ordinary carbon steel nuts, cylinder rod roughness 0.8, cylinder barrel cold drawn, cylinder rod chrome plated or QPQ treatment |
| Oil tank body | With cooling fin design, the cooling efficiency is increased by 40% | Restructuring of ordinary aluminum tube without heat dissipation |
| Motor spool | Valve core material: stainless steel material, quick unloading: stainless steel material, sealing: steel-flexible combined sealing | Ordinary carbon steel, ordinary flexible seal |
| Upper and lower block connecting screw | Special corrosion-resistant surface treatment | Ordinary anti-rust treatment |
| Hydraulic oil | Hardcover low-condensing hydraulic oil | Ordinary hydraulic oil |
| Standard test | Synchronization accuracy standard: 3S movement: rise time ≤ 3.2 seconds, fall time ≤ 1.6 seconds; 4S movement: rise time ≤ 4.2 seconds, fall time ≤ 2.5 seconds | 3S movement: rise time ≤ 3.3 seconds, fall time ≤ 1.7 seconds; 4S movement: rise time ≤ 4.3 seconds, fall time ≤ 2.6 seconds |
| Leakage detection standard: Withstand voltage breakdown detector: AC1500V, withstand voltage 3S, leakage current ≤3mA | Leakage protection switch: AC220V, leakage current ≤30mA | |
| Pressure holding standard: cold state movement load ≤75KG, pressure holding within 8 hours, load drop ≤10mm | Cold state movement load ≤ 30KG, keep pressure within 3 hours, load drop ≤ 15mm | |
