National Oilwell Varco

AC Drives - Manufacturer:NOV - National Oilwell Varco Type:TDS-7S Year of manufacture:1997 Documentation Status:Available Amount: $330,000.00 USD Top drive unit including pipe handler, dolly and power loop etc. suitable for offshore- or land drilling rigs. Working height: 245.5 inches (6.236 m) from top tool joint to bail. (Calculated using 108" links) Guide dolly configuration, Rail Spacing: 43 x 66 In. HEB-280 Rail loading while drilling: 34,000 ft.lbs Gear box: 5.30:1 gear ratio reduction Max. rpm: 225 Max continuous torque: 45 kNm. (33,200 ft.lbs) at 150 rpm. Max. intermittent torque: tba. New El. motor type ABB HXR 450LM8 740 KW (AC) included. See UL 05498 The top drive has been maintained as per OEM recommendations and subject to OEM 5-yearly overhauls, last time in 2006.