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CNC Milling

Prismatic parts, fixtures, housings and contoured geometry, from one piece to a pallet pool running overnight.

Milling is where most machined parts start: a block of material, a print, and features that have to sit in the right relationship to each other. You need it when a part has pockets, bosses, bores and faces on more than one side, when a fixture or a plate has to be flat and square to a fraction of what a saw leaves, or when the geometry curves in ways that only a spindle moving through five axes can reach without a second setup.

We run three- and four-axis vertical machining centers for the everyday work, horizontals with pallet changers for production, and full simultaneous five-axis for the parts that would otherwise need three fixtures and three chances to introduce error. The Mazak Palletech cell keeps fourteen pallets queued across two horizontals, which is how a repeat job runs lights-out and lands on the dock on the date we quoted.

Every program is written in GibbsCAM and, on the five-axis machines, simulated in Vericut before a tool touches metal. That is unusual for a shop this size. It is also why a first article on a complicated part tends to come off the machine right the first time.

CNC Milling at Midwest Machine and Tool
Capacity

The machines that do this work.

Pulled from the full equipment list, with travels and capacities as they stand on the floor today.

  • Mazak Variaxis 630-5X-II, full 5-axis, 24" × 24"
  • Mazak Variaxis 500-5X-II, full 5-axis with pallet changer
  • Mazak Palletech, 14-pallet pool on two PFH-5800s
  • Mazak PFH-5800 horizontal with pallet changer, 29" × 29" (2)
  • Mazak Nexus 700E CAT 50, 27.5" × 80" with 4th axis
  • Mazak Nexus 530C, 20" × 40" (2)
  • Milltronics BR-50 bridge mill, 50" × 150" with 4th axis
  • Milltronics VM-30, 30" × 40" with 4th axis rotary
  • Milltronics VM-25, 25" × 50"
  • Milltronics VM-16, VM-17, VM-20 and VK3 (7 total)
  • Hitachi Seiki VS-50 and VS-60, to 24" × 50" (4)
  • Fadal 3016FX, 16" × 30" (3)
  • Hurco VM2, 20" × 40"
  • Mori Seiki Duracenter 5 with 4th axis
  • Bridgeports with digital readouts

Materials we run

Carbon and alloy steel, stainless, aluminum, brass and bronze, tool steel, titanium, and engineered plastics. Heat treat is done in house, so a part that needs hardening between roughing and finishing does not leave the building.

Tolerance and inspection

Tell us the tolerance on the print and we will tell you whether we can hold it, before you send a purchase order. Milled parts are inspected on a Wenzel LH87 five-axis CMM with an 800 by 1500 by 700 mm envelope, against a Starrett Grade A surface plate and the full gauge inventory, and the results are recorded per part number. See how we document inspection.

Parts it suits

  • Fixtures, pallets and tombstones for your own machines
  • Manifolds, valve bodies and housings with bores that have to line up
  • Large plates and weldments finished flat on the 50 by 150 inch bridge mill
  • Five-axis contoured parts that would otherwise need multiple setups
  • Brackets and frames in aluminum or steel, prototype through production
Related

Where this fits.

Send us your print.

Upload a drawing, tell us the quantity and the material, and we'll come back with a quote and a realistic date. Not an optimistic one.

Request a quote

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We reply to most quotes within one business day.