OUR EQUIPMENT


cnc grinding machine

CNC Grinders


  • 2 CNC Internal Grinders

  • 5 CNC O.D. Grinders

  • 1 CNC Cylindrical Grinder

  • 12.0" Dia x 40.0" Length Capacity

  • Dimensional Accuracy within ±.00005”
Okuma GA26W CNC Cylindrical Grinder
  • 25” Distance Between Centers
  • SBS Wheel Balancing
  • 15-HP Spindle Motor
  • 24.0” × 5.0” Wide Capable Grind Wheel with Constant Speed
  • Rotary Disk Dresser
  • Control Gaging Size Control
Okuma GI-20N Twin-Spindle Internal Grinder
  • 10-HP High-Frequency Spindle Drive
  • Glass Scales
  • Air Chuck Capable
  • Custom Wheel Profiling Capability
  • Coolant Filtration System
Okuma GI-20N Internal Grinder
  • Belt-Driven Spindle
  • 10-HP Spindle Drive
  • Glass Scales
  • Air Chuck Capable
  • Custom Wheel Profiling Capability
  • Coolant Filtration System
Mitsubishi RC-32 Angle Head O.D. Grinder
  • 20" Wheel
  • Wheel-Speed Inverter
  • 12.0" x 40.0" Capacity
  • Lateral Location Device & Size Gaging
  • Custom Wheel Profiling Capability
  • Coolant Filtration System
Toyoda GL-4 O.D. Angle Head Grinder
  • 12.0" x 40.0" Capacity
  • Up to 4.700" Wide Wheel
  • Lateral Location Device & Size Gaging
  • Custom Wheel Profiling Capability
  • Coolant Filtration System
Toyoda GL-4 O.D. Angle Head Grinder
  • 12.0" x 20.0" Capacity
  • Up to 4.700" Wide Wheel
  • Lateral Location Device & Size Gaging
  • Custom Wheel Profiling Capability
  • Coolant Filtration System
Toyoda GL-3 High-Speed O.D. Angle Head Grinder
  • 8.0" x 12.0" Capacity
  • Lateral Location Device & Size Gaging
  • Custom Wheel Profiling Capability
  • Coolant Filtration System
Jones & Shipman Straight-Plunge Grinder
  • 5.0" dia Diamond Roll Form Dressing Capability
  • Constant Wheel Speed
  • Custom Wheel Profiling Capability
  • Glass Scales
  • Coolant Filtration System
  • Coolant Chiller

Manual Grinders


5 Landis O.D. Grinders
  • 5.0" x 18.0" Capacity
1 Cincinnati Universal Grinder
  • I.D. & O.D. Grinding
  • 5.0" x 18.0" Capacity
1 Studer RHU450 Universal Grinder
  • I.D. & O.D. Grinding
  • 10.0" x 16.0" Capacity

precision measuring tool

Quality Assurance


  • 3 Jones & Lamson Comparators

  • Full Set of Manual Inspection Tools

Cowan works with a variety of materials including Aluminum, Steel, Copper, Brass, Bronze, Plastics, and more.

metal bars

Aluminum Alloys

2011 • 2017 • 2024 • 2219 • 5052 • 6061 • 6063 • 6262 • 7050 • 7075 • K100 & More

Carbon Steel

1018 • 1025 • 1040 • 1045 • 1112 • 1117 • 1144 • 1215 • 12L14 Ledloy & More

Stainless Steel

13-8MO • 15-5PH • 17-4PH • 300/400 Series • Nitronic • AM-355 & More

Aircraft Alloys

4130 • 4140 • 4330 • 4340 • 4620 • 52100 • 8740 • 9310 • H-11 • Hy-Tuff • Nitriding & More

Super Alloys

A-286 • AM350/355 • Hastelloy • Haynes • Hy Mu • Incoloy • Inconel • Maraging • Monel • Nickel • Waspaloy & More


Electrical Steels

Invar • Kovar • 4750 & More

Titanium

6Al-4V • 6Al-6V-2Sn • 6Al-7Nb • 8Al-1Mo-1V • 10Al-2V-3Sn • CP 1, 2, 3 & 4 • Ti-1100 & More


Brass & Bronze

200/300 Series Brass • 400/500 Series Bronze • Ampco • Silicon & Manganese Bronze • Aluminum Bronze & More

Copper

100 Series OFE/OF/ETP/DHP Copper • Tellurium Copper • Half- and Full-Hard & More

Plastics

Acrylic • Delrin® • Polycarbonate • Polyethylene/UHMW • PEEK® • Nylon • Teflon® • Vespel® • Ultem® & More

Tool Steels

A2 • A6 • D2 • 01 • S5 • S7 • H13 • H21 • PM A11 • PM M4 & More

High Speed Steels

Acrylic • Delrin® • Polycarbonate • Polyethylene/UHMW • PEEK® • Nylon • Teflon® • Vespel® • Ultem® & More

Cowan provides outside processing as a value-added service for our customers.

Plating & Inspection


  • Hard Chrome Plating

  • Magnetic Inspection

  • Penetrant Inspection

We use only Nadcap-approved sources.

Other Processes


  • Surface Grinding

  • Lapping

Cowan Precision Grinding works closely with qualified local processors to expedite your grinding job.