<p>Lifting units can be combined into 4‑column, 6‑column and other configurations according to user requirements. The column spacing is adjustable based on vehicle length and width to suit more vehicle models. The lifting bracket is equipped with a built‑in guide system. Each column is fitted with an independent hydraulic moving trolley; one person can easily move the lift to the working position for flexible and convenient operation. The input voltage is 380 V, equipped with phase‑sequence and phase‑loss protection to ensure safe and reliable operation. The fork arms can lift wheels with a diameter of 600‑1200 mm; custom sizes are available. Optional cross‑beam assembly enables dual‑use for passenger cars and trucks for maintenance and tire replacement. Safety auxiliary devices are also available upon request.</p><p style="white-space: normal;"><br/></p><p style="white-space: normal;">Model: QJJ20‑4D</p><p style="white-space: normal;">Lifting Capacity (t): 20</p><p style="white-space: normal;">Single‑post Lifting Capacity (t): 5</p><p style="white-space: normal;">Lifting Stroke (mm): 1500</p><p style="white-space: normal;">Output Speed (r/min): 50</p><p style="white-space: normal;">Lifting Speed (mm/min): 600</p><p style="white-space: normal;"><br/></p><p><br/></p>