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Discussion History

Top Drive

Assembly

Motor-driven swivel that rotates the drill string from the traveling block, replacing the rotary table for most operations and circulating mud while tripping. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Top Drive parts and their functions

10 top-level parts · 446 parts in total · full bill of materials below
Top Drive parts diagram: 1 stator assembly, 2 rotor assembly, 3 helical gear pair, 4 wash pipe assembly, 5 IBOP valve, 6 top-drive pipe handler, 7 ball bearing, 8 o-ring set, 9 hydraulic cylinder, 10 control & I/O board. 446 parts in 10 top-level items.
Top Drive parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Stator Assembly 3 parts 2× Stationary part of an electric motor: a slotted laminated core wound with copper coils that produce the rotating magnetic field.
2 Rotor Assembly 4 parts 2× Rotating member of an electric motor: a laminated steel core carrying permanent magnets or conductor bars, pressed onto a shaft that delivers the torque.
3 Helical Gear Pair 4× Two meshing helical gears forming one reduction stage that steps torque up and speed down between parallel shafts with quiet, continuous tooth contact.
4 Wash Pipe Assembly 1× Mud-path wash pipe
5 IBOP Valve 2× Internal blowout preventers
6 Top-Drive Pipe Handler 1× Link tilt and torque wrench
7 Ball Bearing 6× Deep-groove radial ball bearing.
8 O-Ring Set 40× Wash pipe and swivel seals
9 Hydraulic Cylinder 4 parts 6× Link tilt and clamp
10 Control & I/O Board 4 parts 2× A populated circuit board running a machinery package: a bare board, microcontroller and the passives and connectors around it.

3D model

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Build & assembly graph

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Bill of materials for Top Drive

10 top-level lines · 25 rows shown · 446 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Stator Assembly 3 parts stator-assembly 2× 2 3 assembly
1.1 Stator Core (laminations) stator-core 1× 2 · part
1.2 Copper Winding copper-winding 1× 2 · part
1.3 Slot Insulation stator-insulation 1× 2 · part
2 Rotor Assembly 4 parts rotor-assembly 2× 2 19 assembly
2.1 Rotor Shaft rotor-shaft 1× 2 · part
2.2 Rotor Core rotor-core 1× 2 · part
2.3 Neodymium Magnet neodymium-magnet 16× 32 · part
2.4 Ball Bearing ball-bearing 1× 2 · part
3 Helical Gear Pair gear-pair 4× 4 · part
4 Wash Pipe Assembly drillship-wash-pipe 1× 1 · part
5 IBOP Valve drillship-ibop-valve 2× 2 · part
6 Top-Drive Pipe Handler drillship-pipe-handler 1× 1 · part
7 Ball Bearing ball-bearing 6× 6 · part
8 O-Ring Set oring-set 40× 40 · part
9 Hydraulic Cylinder 4 parts drillship-hydraulic-cylinder 6× 6 8 assembly
9.1 Cylinder Barrel drillship-cylinder-barrel 1× 6 · part
9.2 Piston Rod drillship-piston-rod 1× 6 · part
9.3 O-Ring Set oring-set 4× 24 · part
9.4 Oil Seal oil-seal 2× 12 · part
10 Control & I/O Board 4 parts drillship-control-board 2× 2 150 assembly
10.1 Bare PCB pcb-bare 1× 2 · part
10.2 Microcontroller mcu 1× 2 · part
10.3 SMD Passive (R/C/L) smd-passives 140× 280 · part
10.4 Connector connector 8× 16 · part

Where the top drive is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Drilling Package

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks