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Top Drive Systems
As one of the most transformative developments in drilling history, NOV top drive systems are now the industry standard for both offshore and land drilling rigs.
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Description
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Specifications
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Resources
Unmatched top drive system performance and reliability
Our top drive systems offer unmatched performance and reliability while continuing to drive longer, heavier strings through complex formations.
For decades, the industry has relied on brands like Varco, National, and Hydralift to push the boundaries of equipment design. Building upon this legacy of experience in electric top drive systems, NOV continues to produce world-class drilling systems that are durable, reliable, and able to meet the performance demands of drilling today. With over 2,900 top drive systems delivered, we can offer products ranging from the smallest hydraulic power swivel (HPS) units to the largest AC-powered offshore drilling systems with hoisting capacities up to 1,500 tons.
Top Drive System Product Models
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Product model |
Hoisting capacity |
Horsepower |
Maximum continuous torque |
NOVOS enabled |
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TDX-1500 |
1,500 tons |
2 × 1,340 hp |
105,000 ft-lb (142 360 N-m) |
Yes |
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TDX-1250 |
1,250 tons |
2 × 1,340 hp |
105,000 ft-lb (142 360 N-m) |
Yes |
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TDX-1000 |
1,000 tons |
2 × 1,150 hp |
91,000 ft-lb (123 379 N-m) |
Yes |
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TDS-1000 |
1,000 tons |
1 × 1,150 hp |
62,250 ft-lb (84 399 N-m) |
Yes |
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HPS-03-1000 |
1,000 tons |
2 × 1,150 hp |
78,181 ft-lb (106 000 Nm) |
Yes |
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HPS-750 |
750 tons |
2 × 1,150 hp |
78,181 ft-lb (106 000 Nm) |
Yes |
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TDS-8SA |
750 tons |
1 × 1,150 hp |
62,250 ft-lb (84 399 N-m) |
Yes |
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TDS-4S |
750 tons |
1 × 1,100 hp |
45,500 ft-lb (61 689 N-m) |
Yes |
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TDS-11SH |
500 tons |
2 × 550 hp |
51,000 ft-lb (69 146 N-m) |
Yes |
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TDS-11SA |
500 tons |
2 × 400 hp |
37,500 ft-lb (50 843 N-m) |
Yes |
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TDS-11HD |
500 tons |
2 × 600 hp |
58,800 ft-lb (79 722 N-m) |
Yes |
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TDS-10SH |
250 tons |
1 × 400 hp |
22,288 ft-lb (30 218 N-m) |
Yes |
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Top Drive Technologies Brochure
Brochure highlighting our full line of top drives and their specifications
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TDS-11SA Top Drive Flyer
Product flyer for the TDS-11SA top drive system
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TDS-11SH Top Drive Flyer
Product flyer for the TDS-11SH top drive system
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TDS-11SAE Upgrade Flyer
Product flyer for the TDS-11SAE top drive upgrade
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TDS-11HD Flyer
Product flyer for the TDS-11HD top drive system
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TDS-10SH Brochure
Product flyer for the TDS-10SH top drive system
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Onshore Product Reference Guide
A technical look at our onshore rig equipment product portfolio
We just did a maintenance comparison using the TDS-11SA for 6 months versus one of your competitors. We spent $4,800 on the TDS and $30,000 on the competitor, not including downtime. That speaks for itself.
Compact and modular
Industry’s most prolific top drive
Over 2,900 delivered
High torque for lateral drilling
