We are the largest, fastest producer of
cast metal prototypes in the U.S.A.

Phone: 763-788-6965
Requets a Quote:
Prototyping
Production

Technical Information

September 5, 2010

Take a closer look

We’ve listed some of our specifications here, but if you are a new client, need advanced information, or have further technical questions, let us know – that’s why we’re here.

Design Data Tolerances

LINEAR TOLERANCES
Length Dimensions	Normal	Premium	Critical dimensions require additional operations and are influenced by alloy and casting configurations.
UP to 1/2”	± .007	± .003
1/2 to 1”	± .010	± .005
1 to 2"	± .013	± .008
2 to 3”	± .016	± .010
3 to 4”	± .019	± .012
4 to 5”	± .022	± .014
5 to 6”	± .025	± .015
6 to 7"	± .028	± .016
7 to 8”	± .031	± .017
8 to 9”	± .034	± .018
9 to 10”	± .037	± .019

Flatness & Straightness .003 to .005 TIR/Linear inch Draft Angles Generally none are required – however shapes with thin sections may require injection systems incorporated into the mold. Surface Finish 100 Micro or Better Fillet & Edge Radii .010" or greater 3/64" Typical	Out of Roundness		Hole Tolerances
	Diameter	TIR	Diameter	TIR
	.50”	.010"	UP to .25"	.003"
	1.00”	.015"	.25" to .50"	.004"
	1.50”	.020"	OVER .50"	.005"
	2.00”	.025"

	Angles/Draft - - - ± 1/2°

Equipment List:

QC - INSPECTION		FINISHING
Angstrom V-71 Spectrometer Numerex CMM Deltronic Optical Comparator Shell Test Lab Wilson Rockwell Hardness Tester Surface Plates (2) CimCore Infinite 6 axis arm		18,000 PSIWater Blast Unit Pneumatic Knockout Machines Tannewitz 20" Friction Saws (2) Grob 13" Bandsaw (2) Wheelabrator Spin Blast Unit Kolene System withWaste Treatment System Goff Shot Blast Machines (2) Empire Sand Blast Machines (2) Rotary Carousel Grinders Hydraulic Straightening Presses (3) Dual Head Off Hand Grinding Stations (2) Hot Straightening Ovens (2) Empire Barrel Blast VA Tech Robotic Grinder
WAX ROOM
MPI 50 ton C-FrameWax Injector MPI 30 ton C-FrameWax Injector MPI 25 ton AutoWax Injector (2) Jahnke 18 ton C-FrameWax Injector (2) Jahnke 12 ton C-FrameWax Injector Overhead Conveyor System (2) Wax Distribution & Conditioning System MPI AutomaticWax Assembly
SHELL ROOM		TOOL ROOM
Overhead Conveyor System (3) Shell O'Matic Robot Slurry/Stucco Beds and Dust Collector VA Tech Shell Maker Dry-Cabinet Conveyor		Bridgeports (5) LeBlond Lathes (2) Drill Presses (3) DoAll Surface Grinder
FOUNDRY		MISCELLANEOUS
IRC 350 KW Melting Center 600 lb. Crucible (2) 150 lb. Crucible 400 lb. Resistance Melter Ergotech Trolley System and Manipulator Hanel Lean-Lift (Vertical Storage Unit) Pyrotech Aluminum Degassing Unit Dewax Oven w/After Burner System Firing Ovens (4) MIFCO 50 - 75# Gas Melter		100 HP Air Compressor 75 hp Air Compressor 250 Ton Cooling Tower Dust Collector Systems Bar Code Job Tracking System PROTOTYPES 3D Systems SLS styrene prototype machines (6)

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