Auxiliary Operations

Value-Added Services for Finishing Products

Secondary Finishing Operations

DuPage Machine Products offers secondary finishing operations to ensure that our customers get the perfect part made to their exact specifications. Auxiliary operations provide the refinements that are not possible with our primary machining processes.

We use specialized equipment to provide CNC grinding services, broaching services, thermal deburring services, vertical milling services and other value-added services.

CNC Secondary Operations

  • CNC Brother, Hass Drill/Tap and vertical milling machines
  • 2-axis, self-loading Miyano LZ CNC turning center with live tolling capability
  • Takamaz CNC lathe machines with gantry loading capability


  • Monza, Studer and Blanchard machines
  • CNC centerless grinding machines with in-feed, thru-feed, angle and bowl-feed capabilities

Bore Sizing

  • Accucut and Sunnen machines
  • Single-pass and multiple-stroke capabilities for seating, honing tight tolerances and smooth surface finishes


  • Automated broaching operations available


  • Steel Shot Wheelabrate and Glass Bead Blast Wheelabrate machines
  • Thermal deburring (TEM) and vibratory tumble finishing

Secondary Operations Equipment

DuPage Machine Products runs a complete assembly department that contains a wide range of equipment, including:

  • Takamaz XL-100MT with Automatic Part Loading
  • Miyano LZ with Automatic Part Loading
  • Hass Vertical Machining Centers
  • Brother Vertical Machining Centers
  • Studer CNC Cylindrical Grinder
  • Sunnen Multi-Stroke Honing Machines
  • Accucut 8-Station Single Pass Honing Machine
  • Miles Vertical Broaches (24”, 36” and 48”)
  • Monza CNC Thru-Feed/In-Feed Centerless Grinders
  • Cincinnati Thru-Feed/In-Feed Centerless Grinders
  • Blanchard Grinding Machine
  • Universal Drilling Machines (Opposed Spindles)
  • Hardinge Turret Lathe
  • Kennametal Thermal Deburring & Ransohoff Aqueous Washing
  • Vibratory Finishing/Tumbling
  • Goff Wheel Blasting/Abrating Finishing Equipment