Custom Screw Machining Services


Many technologies, one standard: on-time quality
Our custom screw machining services are bolstered by our extensive PTJ machine library and general breadth of screw machining technology. Few can match PTJ in adherence to exacting specifications, or in the re-creation of complex geometries for high volume production of all types of specialized material parts.

Cnc Milling Capabilities

Industry Focus
  • Aerospace
  • Agricultural
  • Architectural
  • Chemical
  • Dental
  • Electronic
  • Food
  • Machine Tool
  • Medical
  • Military
  • Optical
  • Packaging/Converting
  • Pharmaceutical
Intended Applications
  • Bushings
  • Fasteners
  • Fittings
  • Forgings
  • Machine components
  • Machine components
  • Pins
  • Shafts
  • Sockets
  • Spacers
  • Spindles
  • Standoffs
  • Thread Rod
  • Turbine Components
  • Turbomachinery Components
  • Valves
Milling Processes
  • Boring
  • Counterboring
  • Countersinking
  • Drilling
  • Pocketing
  • Profiling
  • Reaming
  • Tapping
Machined Materials (Metals)
  • Alloy Steels
  • Aluminum
  • Brass
  • Bronze Alloys
  • Carbon Steel
  • Iron
  • Molybdenum
  • Monel
  • Nickel
  • Stainless Steel
Machined Materials (Plastics)
  • ABS
  • Acetal
  • Acrylic
  • Nylon
  • Phenolic
  • Polyamide-Imide
  • Polycarbonate
  • PEEK
  • Polyetherimide
  • Polyethylene
  • Polypropylene
  • Polysulphone
  • PTFE
  • PVC (Polyvinyl Chloride)
  • PVDF
  • Teflon
Type of CNC Milling MachinesVertical Machining Centers
CNC Cutters
  • Flat end mill
  • Ball end mill
  • Chamfer mill
  • Face mill
  • Twist mill
  • Reamer
  • Tap
CNC Cutting Tools
  • High-speed steel (HSS)
  • Carbon Steel
  • Carbide
  • Cobalt High Speed Steel
Machinery Axes4
Type of Collet/ Adapter
  • Spindle- have a standardized spindle end
  • Chuck- used to attach chucks to milling machines having a standard spindle end
  • Cat 40 Tooling
Vise
  • Plain
  • Swivel-type
  • Double Vise
  • 3 Jaw Chuck
CNC Equipment Capabilities
  • Coolant systems
  • High speed machining
  • Variable spindle speeds
  • Electric-drive motors
  • Power-operated table feeds
CNC Tolerances
  • Straightness : ± 0.001″
  • Diameter (outer/inner): ± 0.0005″
  • Concentricity: ±0.0005
  • Length ±0.0005
Milled Part LengthMax 60″
Milled Part WidthMax 30 in
Milled Part HeightMax 30″
CNC Production Volume
  • Prototype
  • Low Volume
  • Small Run
  • High Volume
  • Large Run
  • Long Run
CNC Machining Lead Times
  • Quoted on job
    by job basis
  • Rush & Emergency
    services available
Industry Standards
  • ISO – 9001-200
  • International Organization for Standardization
  • TS-16949
  • Technical Specifications, used with ISO
File Formats Accepted
  • 3D ACIS Model File
  • BMP
  • Catia (CATDrawing, CATPart)
  • DXF
  • DWG
  • MasterCam (MCX, MC8, MC9, SET)
  • STEP-Product Data Exchange
  • GIF
  • IGES
  • JPG or JEPG
  • PDF
  • SAT
  • SolidWorks (SLDPRT, SLDDRW, SLDDRT)

Cnc Turning Capabilities

Intended Applications
  • Machine components
  • Turbine components
  • Shafts
  • Forgings
  • Valves
  • Pins
  • Thread rod
  • Fasteners
  • Spindles
  • Sockets
  • Bushings
  • Custom Nuts & Bolts
  • Spacers
  • Standoffs
  • Fittings
Tolerances0.0005″
Part Diameter
  • Min 1/4 in
  • Max 10 in
Part Length
  • Max 44 in
Part Length
  • Max 44 in
Maximum Part
Weight/Lifting Capacity
  • 250 lbs
Machining Processes
  • Broaching
  • Parting/Cutting
  • Facing
Threading:

  • External
  • Internal
  • Internal Forming
  • Knurling
  • Boring
  • Drilling
  • Profiling
  • Reaming
  • Tapping
Turning:

  • Contour Turning
  • Form Turning
  • Taper Turning
  • Straight Turning
Materials (Metals)
  • Alloy Steels
  • Aluminum
  • Brass
  • Bronze Alloys
  • Carbon Steel
  • Stainless Steel
  • Copper
  • Iron
  • Lead
  • Molybdenum
  • Nickel
Materials (Plastic Polymers)
  • ABS (Acrylonitrile Butadiene Styrene)
  • Acetal
  • Acrylic
  • Nylon
  • Phenolic
  • Polyamide-Imide
  • Polycarbonate
  • Polyetheretherketone (PEEK)
  • Polyetherimide
  • Polyethylene
  • Polypropylene
  • Polysulphone
  • PTFE (PolyTetraFluoroEthylene)
  • PVC (Polyvinyl Chloride)
  • PVDF (Polyvinylidene Fluoride)
  • Teflon
Equipment
  • Lathe
  • Engine
  • CNC
Fixturing
  • Three-jaw chuck
  • Four-jaw chuck
  • In-House Fixturing & Tooling
Part Diameter
  • 8″ Chuck with 2″ Thru Bore
Machinery Axis2
Secondary Services
Offered
  • Assembly
  • Drilling
  • Deep hole Drilling
  • Tapping
  • Bending
  • Threading
  • Broaching
  • Counter Sinking
  • Anodizing
  • Pressing
  • Milling
  • Reaming
  • Welding
  • Plating
  • Passivating
  • Heat Treating
  • Centerless Grinding
  • Inserting Plastic Molding
Industry Focus
  • Aerospace
  • Agricultural
  • Architectural
  • Chemical
  • Dental
  • Electronic
  • Food
  • Heating, Ventilation &
    Air Conditioning – HVAC
  • Machine Tool
  • Medical
  • Military/Mil-Spec
  • Power Generation
  • Packaging/Converting
  • Pharmaceutical
  • Industrial
Advantages of Turning
  • Tight tolerances
  • Short lead times
  • Materials compatible
Production Volume
  • Specialty Production Shop
  • Prototype
  • Low Volume
  • Small Run
  • High Volume
  • Large Run
  • Long Run
  • Large Scale Production
    Volume Run
Lead Times Available
  • Quoted on job by job basis
  • Rush & Emergency services available
Industry Standards
  • ISO – 9001 – 2015
  • Mil-Spec – Compliant
File Formats
  • AutoCAD (DWG)
  • DXF – Drawing Interchange Format, or Drawing Exchange Format
  • PDF – Portable Document Format
  • SolidWorks (SLDPRT,SLDDRW,SLDDRT)
  • STEP – Standard for the Exchange of Product Model Data