Lone Star Downhole Products is now Fifty X Technology. Same team. Same campus. Same tolerances. What changed, and what didn't
MWD Components  ·  Stocked  ·  Repeat production  ·  Made to print  ·  Repaired in-house

On the shelf.
On the machine.
Understood.

We manufacture and stock the mechanical components that keep MWD tools assembled, serviced, and ready to run. Lower-end and pulser parts, interconnects, pressure housings, spearpoints, muleshoe components, centralizers, running gear. We know how they fit together, and what it costs a customer when one of them isn't available.

Stocked
Common configurations, ready for immediate or short-notice release
Repeat production
Established parts with proven programs, tooling, and inspection history
Made to order
Standard or proprietary components to a confirmed configuration
Repaired in-house
Housing recuts and muleshoe rebuilds, inspected and re-marked
Why it matters

More than a machine shop that happens to make MWD parts.

An MWD tool contains dozens of mechanical components that have to work together downhole. Some are large and obvious. Others are small internal pieces that shut down the whole tool when they are worn, damaged, or on backorder.

Most of them are not one-off inventions. The industry has settled on established part families around common tool configurations, and those families get replaced constantly as tools are built, repaired, and returned to service. That makes availability as important as capability. We are structured for both.

Repeat parts run like repeat parts.

Programs, tooling, fixturing, inspection plans, and setup sheets stay on file for every component we have made. When your reorder comes in, it goes to the machine, not back to engineering. That is what lets common families sit on the shelf, and what keeps your variation in material, connection, port, or length from turning into a project.

Find the family. Confirm the variation. Keep the tool moving.

This page is not a claim that every part fits every tool. It exists so you can identify the component family you need and start a technical conversation without explaining the whole assembly from scratch. We work from a part number, a customer print, a prior order, a physical sample, a photo, a marked-up drawing, or a description of where the part lives. When the exact configuration is unclear, we pin down the critical details before anything reaches the machine.

01  ·  Lower-end & pulser components

Flow control, pulse generation, actuation, alignment, wear.

Mechanical components supporting everything the lower-end assembly has to do, machined in the non-magnetic and high-strength alloys the application calls for, held to prints that leave no room for interpretation.

Representative components
  • Pulser helixes
  • Poppet housings
  • Poppet bolts
  • Signal-valve shafts
  • Piston caps
  • Abrasion rings
  • Related lower-end hardware

Stocked and repeat-production families expand continually with customer demand. Availability of any configuration is confirmed by our team.

Rows of machined threaded lower-end hardware
In stock Standard component, machined in quantity and on the shelf.
02  ·  Interconnect components

Connect, support, isolate, protect.

The components that carry battery and electronics sections through the assembly and keep them isolated from what the hole is doing. Machined, molded, and bonded here, which is why we can build and deliver the complete assembly, not just the pieces.

Centralizers: dedicated page
Our offering includes
  • Interconnect shafts
  • Integrated interconnect shafts
  • Interconnect housings
  • Battery snubbers
  • Electronics snubbers
  • Threaded rings
  • Split rings
  • Intermodule ends
  • Battery intermodules
  • Bulkhead retainers
  • Centralizers
Rows of machined intermodule ends in stock
In stock Intermodule ends, machined in quantity and on the shelf.
Beryllium copper interconnect shaft
BeCu Interconnect shaft, beryllium copper.
ToughMet 3 interconnect shaft
ToughMet 3 Same shaft, ToughMet 3.
Nine machined MWD spearpoints standing in formation
Spearpoints Standard and integrated configurations, machined complete.
03  ·  Spearpoint & top-end components

Retrieval you don't have to think about.

Standard and integrated spearpoint components manufactured for dependable retrieval, alignment, and top-end assembly performance.

Available configurations
  • Complete spearpoints
  • Integrated spearpoint designs
  • Replacement shafts
  • Customer-specific top-end components to tool requirements
04  ·  Pressure housings

New manufacturing.
Precision recuts.

We manufacture new MWD pressure housings and barrels in common, legacy, and customer-specific configurations, and we recut worn or damaged housings to restore critical connections and put otherwise usable components back in service.

Seven beryllium copper pressure housings
BeCu Beryllium copper housings.
Five Nitronic 50 pressure housings
Nitronic 50 Non-magnetic stainless housings.
Three alloys, stocked and ready to machine
BeCuNitronic 50ToughMet 3

New pressure housings

Gamma, battery, directional-module and electronics, pulser-driver, and other housings to customer drawings. Our machining is built for exactly this part: long, thin-wall components with deep bores, demanding runout requirements, tight-tolerance connections, and critical sealing geometry.

Pressure housing recuts

When threads, shoulders, or sealing surfaces are damaged, the whole housing may not need replacing. Send the housing with the applicable drawing and the finished length you need. The damaged section is removed, the complete connection is re-machined to your drawing, critical dimensions are verified, and the housing is permanently re-marked with its updated information.

  • Single-end and double-end recuts
  • Removal of worn or damaged connections
  • Thread, shoulder, seal, and O-ring feature restoration
  • Finished-length and dimensional verification
  • Concentricity and runout inspection
  • Permanent re-marking and documented final inspection

Recut or replace: your call, our quote. Send the housing count, drawing, and required finished length and we will quote the recut and a new housing side by side.

Request a housing quote
05  ·  Muleshoes

New components.
Sleeves rebuilt to print.

We manufacture new muleshoe components in common medium and large configurations and restore worn assemblies through a controlled repair and rebuild process.

New components
  • Muleshoe sleeves
  • Muleshoe keys
  • Wear cuffs
  • Threaded retainers
  • Retention and locking components
  • Customer-specific configurations
New muleshoe sleeve, machined complete
New muleshoe Machined complete, in stock.

The welds customers ask about.

Three repair zones on a muleshoe sleeve: the top threads, the bore, and the bottom face. Every one is fully fused, cleaned to parent metal, and re-machined to the applicable dimensions. Nothing is ground to hide anything. Customers who have run tools for twenty years tell us they have not seen sleeves come back like this, and we intend to keep it that way.

Welded replacement top threads on a muleshoe sleeve
Top threads Welded replacement top.
TIG weld inside the bore of a muleshoe sleeve with keys fitted
Precision weld Almost as smooth as new.
Bottom face of a muleshoe sleeve built up by welding
Bottom face Built up, ready for the lathe.

Why the sleeve matters

The muleshoe sleeve supports and seats the MWD probe, establishes its orientation within the UBHO, and carries critical flow and retention components. Wear, washout, damaged seating surfaces, distorted features, and inconsistent prior repairs all affect alignment, sealing, and tool reliability.

Repair and rebuild

Every repair starts with an incoming evaluation of the complete assembly. Depending on condition, the sleeve is disassembled, straightened, welded, re-machined, fitted with replacement components, and restored to the applicable dimensional requirements. Critical profiles, sealing surfaces, alignment features, retention areas, and repaired sections are inspected before release.

  • Incoming evaluation and documented inspection
  • Precision welding and dimensional restoration
  • Repair of worn, washed, or damaged features
  • Replacement of wear cuffs, keys, retainers, and related parts
  • Re-machining of sealing, seating, and alignment surfaces
  • Final dimensional verification and permanent identification
06  ·  Surface & running gear

Assemble, align, deploy, retrieve, service.

Beyond the downhole components, we manufacture and supply the surface and running gear used to build the tool, handle it, run it, and get it back.

Available equipment
  • Weight bars
  • Spacer bars
  • Overshots
  • Crossovers
  • 12" tool stands
  • 36" tool stands
  • Alignment tools
  • Knockout tools
  • Custom service & handling equipment
One source

New components. Stocked parts. Repairs.
Under one roof.

A common component from inventory, a proprietary part to print, a new pressure housing, or a critical assembly restored: the machining, fabrication, welding, inspection, and repair all happen here. Send the part number, drawing, quantity, or repair details and we will confirm inventory, manufacturing capability, or repair feasibility.

Quotes & availability
Ship repairs to
Fifty X Technology, LLC
19615 Juergen Rd., Bldg. 3100
Cypress, TX 77433
Submitting opens a pre-filled email to info@fiftyxtechnology.com in your mail app. Attach drawings, photos, sample data, or a PO there. Customer prints and proprietary designs are reviewed confidentially and never published. ITAR-controlled data only after a supplier NDA is in place.