National Technologies has been a leader in the screw machining industry since 1959. Our capabilities in high-volume, multiple-spindle screw machining, as well as lower volume single-spindle production, combined with six-spindle chucker machining and a full array of secondary operations, make National Technologies the performance leader in screw machining and production parts. National Technologies’ extensive screw machining experience with varied materials, finishes, tolerances and complex features provides solutions and quick-turn-around for even the toughest screw machining projects. If screw machining is what you want, National Technologies is the quality, price and delivery source you need.
- Multiple-Spindle Automatics
- Single-Spindle Automatics
- Six-Spindle Chuckers
- In-House Tool Making
Single & Multiple Spindle Screw Machining Capabilities
- Screw Machining
High Volume
Multiple-Spindle
Low Volume
Single Spindle
- Equipment Capabilities
Six Spindle Chucker
Bar Feeding
- Tooling
In-House Fixturing
- Chucking
6 to 7 in
- Bar Capacity
.5 to 2.75 in
- Tubing
1026 DOM
Seamless
SAE J525 Hydraulic
Black Pipe
- Materials (Metal)
Steel
Stainless Steel
Aluminum
Brass
Bronze
Copper
Zinc
Nickel
Cast Iron
- Materials (Plastic)
Acetal
Delrin
Nylon
Polycarbonate
Lexan
Acrylic
PVC
Teflon
UHMW
Garolite
- Outside Diameter
Up to 2.25 in
- Length
Up to 6 in
- OD Tolerance
± 0.0005 in
- Length Tolerance
± 0.001 in
- Equipment
3 New Britain #657 Chuckers 6″ Chucking Capacity 6 Spindle Automatics
11 New Britain #62 Automatics 2-1/4″ Capacity 6 Spindle Bar Machines
2 New Britain #816 Automatics 1-5/8″ Capacity 8 Spindle Bar Machines
6 Acme-Gridley Automatics 1-1/4″ Capacity 6 Spindle Bar Machines
6 New Britain Automatics 1″ Capacity 6 Spindle Bar Machines
2 Acme-Gridley Automatics 9/16″ Capacity 6 Spindle Bar Machines
1 Brown & Sharpe Ultramatic 2″ Bar Capacity11 Brown & Sharpe Ultramatics 1-5/8″ Bar Capacity
2 Brown & Sharpe Ultramatics 1/2″ Bar Capacity
1 No. 5 Warner-Swasey Turret Lathe 4″ Bar Capacity & 7″ Chucking Capacity
1 No. 5 Warner-Swasey Turret Lathe 2-3/4″ Bar Capacity & 7″ Chucking Capacity
1 No. 4 Warner-Swasey Turret Lathe 2″ Bar Capacity & 7″ Chucking Capacity
4 Hardinge Precision Hand Chuckers 1-1/16″ Bar & 6″ Chucking Capacity
3 Hardinge Precision Screw Machines 1-1/16″ Bar & 6″ Chucking Capacity
- Other Value Added Services
Balancing
Bending
EDM
Laser Cutting
Water Jet Cutting
Honing
Burnishing (ID & OD)
MarkingEngraving
Laser Marking
Sand Blasting
Vibratory
Thermo-Deburring
Custom Packaging
Labeling
- Inspection
Optical Comparator
Coordinate Measuring Machine
Granite Surface Plates
Microscopes
- Testing
Hardness
Non-Destructive
Magnetic Particle
Chemical Property Verification
Mechanical Property Verification
Cleanliness
- Quality
Supply Chain Management
Statistical Process Control (SPC)
- Production Volume
Short to Long Runs
- Lead Time
Quick Turn Around
Additional Information
- Industry Focus
Aerospace & Defense
Agricultural Machinery
Automotive & Transport
Communications
Construction, Mining & Heavy Equipment
Consumer Products
Energy & Utilities
Engine ManufacturersFluid Control Equipment, Pump, Seal & Valve
Fuel Systems
Hydraulics
Industrial Machinery & Equipment
Medical
Power Generation
Recreational Equipment
- Industry Standards
ISO 9001:2008
ASQ Certified Inspectors
NJSU/APQP
- File Formats
SolidWorks
Anvil
Bobcad
FAI Process Improvement
Gibbs
Hardinge Masterkey
MicroEstimating
PMXpert Maintenance