Hydraulic Towing WPerfect Steerable Transfer Carth. Hydraulic towing wPerfect Steerable Transfer Carth parameters: Load capacity: 5 ton – 300 ton. Drum capacity: 200m- 1500m. Speed: 4.5m/min – 20 m/min. No. of drum: single or double. Certificate: BV, ABS, DNV, RMRS, etc. Get A Free Quote. Perfectrding to the number of drums, the wPerfect Steerable Transfer Carth can be divided into single drum wPerfect Steerable Transfer Carth, double drum wPerfect Steerable Transfer Carth and