National Oilwell Varco's TDS-11SA AC Top Drive is an AC-motor-powered top drive developed for use as a portable or permanent unit on a wide variety of land and offshore rigs The TDS-11SA is adaptable to almost any derrick or structure, making it one of the most prominent 500-ton drilling applications,The TDS-11SA is driven by a Variable Frequency Drive (VFD) control system for a greater range of torque and speed performance 

We offer the premier line of top drive drilling systems for today's advanced land drilling rigs

TDS-8SA

TDS-9SA

TDS-10SA

TDS-11SA

IDS-4A 

TDS-4S

TDS-4H

TDS-1000

TDS-3H

VARCO  30158574 GEAR,BULL,HELICAL

VARCO clamp/jaw 50108-14-C  

VARCO big clamp/jaw 16401-6

VARCO  SHELL ACUTATOR PH50  110042

VARCO ASSY,LWR,IBOP6 5/8X6 5/8W/RLFGRV,H2SW, C/W CERT  114706-502

VARCO RPR KIT,LWR IBOP STD&NAM 99498-1

VARCO ASSY,UPPER IBOP,6 5/8X 6 5/8,PH50,H2S, C/W CERT  110103-502

VARCO REPAIR KIT, UPPER IBOP, PH-50 H2S 114860-2

VARCO REPAIR KIT, UPPER IBOP, PH-50 H2S 114860-1

VARCO CABLE ASSY SERVICE LOOP 18 COND(REPLACES 124457-200-25-4-B) 30183959-200-25-4-B

MT)BEARING,THRUST,215OD 30120556

(MT)BEARING,ROLLER,CYLINDRICAL,20 0X360MM 109521

(MT)BEARING,ROLLER,CYLINDRICAL,75 X160MM 109522

DAMCOS  ACTUATOR  BRC250  

 ACTUATOR  BRC1000  

ACTUATOR   BRC2000  

ACTUATOR   BRC4000  

ACTUATOR   BRCF250  

ACTUATOR   BRCF2000  

VARCO 108235-2 BEARING,AC-MOTOR,NONDRIVE-END TDS9S (REPLACES 30174875-2)

30174875-33 SEAL, OPPOSITE DRIVE END

30114259 PIN, SAFETY, .156X3.0

119731 RETAINER,.25x.75x1.8,MS17

M614002913-10 GLAND,3/4"NPT,EX,ARMORED-CABLE,NON-POTD (REPLACES 83444-06)

51402-16-S PIN, COTTER

50810-N-C WASHER, FLAT

30114259 PIN, SAFETY, .156X3.0

30174875-36 RETAINER, RING

50010-22-C5D SCREW, CAP-HEX HD DRILLED, TDS

30183573-005-C WASHER, NORD-LOCK [NL8]

50069-020F06 SCREW, CAP-HEX HD METRIC

M364000765 BRACKET,STRUT ATTATCHMENT

51402-6-S PIN, COTTER ELE LIFT TDS-3

56405-12-C PIN, CLEVIS

NOV SHAFT 623045 NATIONAL DRAWWORKS 1320-UE  ARMCO NATIONAL SUPPLY CO.    K-54 BRAKE AND GREASE SYSTEM  703305-7G

NOV 64229100    UNIT, BREATHER, CRANKCASE POWER END     

JETS ROTOR 021265401

MAZZEI 4090-X PVDF 4.0” Male NPT Inlet/Outlet Connections

NOV  DETECTOR, TEMPERATURE,RESISTANCE  123443  123443+30    

NOV RC DV/DT SNUBBER  R71-00-247  116199-141   

NOV 622834A   BEAM ASSY (MTO)    

KOOMEY 00-03072 CHARGING VALVE KIT

JETS WATER SUPPLY HOSE 034509600 - Hose w/red. nipple 5093

JETS SOLENOID V/V(WATER) 122502400 - Solenoid Valve 122 5024 00

JETS SOLENOID V/V 3-WAY(AIR) 122502100 - Solenoid Valve 122 5021 00

COIL 230V(AIR/WATER) 122501900 - Coil 230V 122 5019 00

JETS ELBOW,WATER 034508500 - Elbow 34508500

JETS SHUT OFF DIAPHRAGM 050501201 - Shut-off Membrane 5012

JETS FLAP 037302100 - Rubber Flap 3021

MH POWER TOP DRIVE MODEL PTD-500-AC 1150HP I.B.O.P SAVOR SUB ASSY DRW./. MH 4060-001 IBOP SUB  13409  

MD TOTCO 10664524-007 M252A-115 PUMP PRESSURE CIRCULAR RECORDER SYSTEM ; PORTABLE  SINGLE RANGE

M&F pressure guage NF306-N2-15-STD   (type f 6,000 psi 1502 hammer union for H2S service)    

LEDTRONICS INDICATOR LIGHTS  5SBF200-0CW-028B  

RELIANCE ELECTRIC MOTOR  B79S2083M-PY

KOOMEY  1700-8500 RELIEF VALVE, 3300 PSI  

KOOMEY 1700-8500-35 RELIEF VALVE, 3500 PSI

KOOMEY  1700-8700 RELIEF VALVE, 5500 PSI