Edmundson Industrial in Houston, Texas is an independent supplier of Ross Hill and NOV AC and DC control modules, SCR bay components, drilling power modules and DC drive stacks. Send the full part number and a nameplate photo; condition, price and lead time are confirmed on the quote.
Our deepest specialty: SCR drilling control for Ross Hill, Hill Hayes, and NOV systems.
Ross Hill Controls and the Hill Hayes SCR designs (now NOV) powered a generation of drilling rigs. Edmundson Industrial sources the control modules, SCR bay parts, and power that keep those systems running, with identification reviewed against the complete label and equipment configuration.
| P/N | EI Ref | Description |
|---|---|---|
| 0521-2500-14 | AC Control Module (SCR) | |
| 0522-2400-23 | DC Control Module | |
| Ross Hill 0100-0120-00: Sprocket slip sensor | Hall effect current sensor |
Full identifiers and the equipment configuration are reviewed together; manufacturer history does not establish interchangeability.
We supply Ross Hill and NOV drilling parts new-surplus, used-tested, and sourced-to-order, with condition disclosed before sale and photos on request. We are an independent surplus and sourcing company, not an authorized distributor.
or send the part number to sales@edmundsonindustrial.com · (832) 975-8827 · Houston, TX. Response timing is confirmed with the request.
Condition disclosed before sale. Response timing is confirmed with the request.
Edmundson Industrial sources AC and DC control modules, SCR bay components including contactors, blowers, meters and instrumentation, and drilling power modules and DC drive stacks. Send the part number or a photo of the label.
Send the complete part number including the suffix, a clear label photo, revision, quantity and equipment details. Include any proposed replacement number with the installed label for review.
Parts may be new-surplus, used-tested or sourced-to-order, with condition disclosed before sale and photos on request. Condition, price and lead time are stated on the quote.
No. Edmundson Industrial is an independent surplus and sourcing company, not an authorized Ross Hill or NOV distributor. Condition is disclosed before sale.
A brand relationship or similar number does not establish fit. Send the installed label, equipment details and any proposed replacement for review with your quote request.