Specialists in Deep Drawn Enclosures & Shallow Drawn Metal Components

ISO 9001 – AS9100 – ISO 13485 certified – ITAR Registered

Serving global customers in Aerospace, Medical, battery, electronic and industrial markets for over 70 years

Custom complex shapes with tight tolerances in difficult-to-draw materials – ferrous & non-ferrous, titanium, nickel, tantalum, Inconel®, Hastelloy®, Kovar®, Monel®

In-house tool design and fabrication, cellular manufacturing, lean, six-sigma continuous improvement, concurrent engineering and statistical tools to assure product quality

Value-added services such as assembly, machining, welding and various surface treatments and coatings to reduce your supply chain

Support Kanban, Dock-to-Stock, vendor managed inventory programs

Engineering and Tool Design
  • Collaboration with your design team to ensure a cost effective, robust enclosure
  • Concurrent engineering for short lead times and low cost
  • Internal tooling design and fabrication ensures precision tolerances, reliable quality and short lead times
  • Utilize National´s library of tools to minimize start-up costs
  • Multi-shift tool room with “lights-out” capability
  • Auto-CAD, PRO/ENGINEER and SolidWorks
  • Part drawings accepted in virtually all electronic formats
Quality Assurance
  • Empowered QA staff operating with Six-Sigma and Lean Processes
  • Black and Green Belts driving continuous improvement
  • ASQ Certified Quality personnel
  • Root cause and Process Failure Modes Effect Analysis (PFMEA)
  • Validation studies (IQ, OQ, PQ)
  • APQP (Advanced Product Quality Planning)
  • PPAP (Production Part Approval Process)
  • Statistical Capability Studies
  • Lot traceability, Record retention and Document control
  • Compliant to the following specifications:

Deep Draw Capabilities

  • Single Run, progressive, transfer presses
  • Low to high volume
  • 50 to 5,000,000 pieces
Precision / Tolerances
  • ±.0005″ (0.013 mm)
  • Drawn corner radii as small as .002″ (0.05 mm)
Deep Draw Equipment
  • Hydraulic, mechanical, pneumatic and transfer presses
  • Up to 300 tons
  • Cold rolled steel, stainless steel, aluminum, copper, brass, Monel®, titanium, Hastelloy®, Kovar®, nickel, Inconel®, Mumetal®, tantalum, and many others
  • 1/16″ to 18″ (1.6mm to 457 mm) diameter
  • Lengths up to 18″ (457 mm)
  • Material thicknesses .002″ to .250″ (0.05 mm to 6.35 mm)
Finish Processes
  • Degreasing, deburring, heat treating, and passivating
  • Andodizing, polishing, painting, powder coating, bead blasting and plating
  • Piercing, extruding, bulging, coining, tapping and machining
  • Resistance spot welding, TIG welding, laser welding and brazing to MIL specifications
  • Assembly of components and brackets to deep drawn enclosures
  • PEM®, stud and standoff insertions