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QUALITY MANAGEMENT SYSTEM

Quality at DAD Manufacturing isn't a final inspection step — it's built into every stage of the process, from the moment a print or PO comes in to the day a part ships.

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Our Quality Management System is structured around the framework of ISO 9001:2015, and our processes are designed and operated to meet its requirements:

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  • Document & Process Control — Work instructions, routers, and revision-controlled drawings ensure every operator is running the current spec, every time.

  • Incoming & In-Process Inspection — Raw materials and components are verified against print before they enter production, and parts are checked at defined stages (not just at final inspection) to catch issues before they compound.

  • Calibrated Measurement Equipment — All gauges and measuring instruments are tracked and calibrated on a scheduled basis, with full traceability back to certified standards.

  • Supplier Evaluation — Outside material and processing vendors are qualified and reviewed against quality and delivery performance, not just price.

  • Nonconformance & Corrective Action — When something doesn't meet spec, it's documented, contained, root-caused, and corrected — with action taken to prevent recurrence, not just a one-time fix.

  • Traceability — Lot and job traceability lets us trace a finished part back through every process it passed through.

  • Trained, Accountable Operators — Every employee involved in production is trained to the quality requirements of their role, with competency verified before they sign off on work.

  • Internal Audits & Management Review — We regularly audit our own processes against our quality standards and review performance data with leadership to drive ongoing improvement.

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This system has been put through regular quality inspections and audits by customers holding DAD Manufacturing to ISO 9001:2015-level standards — and we've met them. While we are not currently a certified facility, our processes, documentation, and inspection practices are built and operated to that standard.​​​

AVAILABLE MATERIALS

  • Any form (sheet, plate, angle, tube, etc.) of the following materials can be fabricated in our shop:

    • ​Stainless Steel​
    • Aluminum
    • Copper
    • Mild Steel (produced in a separate facility)

ENGINEERING DEPARTMENT

DAD Manufacturing's engineers are experienced with SolidWorks modeling software which works seamlessly with our ERP System, Global Shop, to convert customer blueprints into shop packet documents. This state-of-the-art engineering design and management control program ensures efficient production with close attention to customer specifications.

FABRICATION DEPARTMENT

(LASER & FORMING)

  • Flat Lasers
    • 1" Stainless Steel​ 

    • 5/8" Mild Steel 

    • 60" x 127" Sheet Size 

  • Tube Lasers
    • Tubes to 8.5" OD

  • Plasma Lasers​
  • Brakes
    • Max. 12 feet, 250 ton​

  • Rolling
    • Max. 6 feet​

  • Drills & Mills
  • Saws
    • Horizontal, Vertical, & Cold Saws​

    • Max. 12" x 14" 

  • Shears
    • 10 feet x 1/4" Stainless Steel​

    • 10 feet x 3/8" Mild Steel​

  • Shape & Tube Bending​

WELDING DEPARTMENT

  • Certified Welding to 12-bar
    • AWS D1.1​

    • AWS D1.3​

    • AWS D1.6​

  • MIG Welding​
    • Traditional MIG Stations​

    • Automated MIG Welding Stations

    • Weld Positioners

  • TIG Welding​
    • Traditional TIG Stations​

    • Automated Wire Feed

    • Automated TIG Welding Stations

    • Weld Positioners

  • Braising & Soldering​
  • Spot Welding
  • Seam Welding​

FINISHING DEPARTMENT

(POLISHING & ASSEMBLY)

  • Metal Finish Options
    • Inner surface and outer surface can have different finish options
      • 2D Factory Finish

      • 2B Factory Finish (RA = 70 MAX)

      • 4B Factory Finish (RA = 65 MAX)

      • 2B0 (RA = 70 MAX)

      • 2B0S (RA = 20 MAX)

      • Pharmaceutical 4A (RA = 17 MAX)

      • Pharmaceutical 4S (RA = 17 MAX)              

      • Food 4A (RA = 32 MAX)

      • Food 4S (RA = 32 MAX)              

      • Construction 4A (RA = 45 MAX)

      • 8A (RA = 8 MAX)

      • 8S (RA = 5 MAX)

      • Bead Blast 

        • Available for Stainless Steel Only

        • Currently using #7 Shot Glass Bead

      • Wet Paint Textured

      • Wet Paint Non-Textured

      • Powder Coat

      • Powder Coat Textured

  • Weld Finish Options
    • Each product must have a designated weld finish​
      • Ground Welds​ (Sanitary)
      • Strip Polished Ground Welds
      • Non-Ground Welds
      • n/a - No Welding Needed
  • Color Removal Options
    • Yes - Remove Color from Welds
    • No - Do Not Remove Color 
  • Assembly​ Options
    • Mechanical, electrical, or manual assembly into finished components​

 >> DAD Finishing Descriptions & Cost Information <<

  • A = Aesthetic – This finish is not sanitary and this material is a standard mill finish. It is cold rolled, annealed and descaled. Designated surface will have a consistent straight grain. Light scratches, minor grain misdirection, and discontinuity in the finish at and around welds are acceptable. Minor pits (UN-CLUSTERED) are acceptable.

  • S = Sanitary – This finish will not have any pits, scratches or imperfections. This is used frequently in pharmaceutical or food equipment industries

    • NOTE: All sanitary (S) metal finish options assume the 'Ground Weld (Sanitary)' weld finish option​

  • Metal Finish: The higher the RA value, the lower the cost. Below is a list in order of least expensive to most expensive

    • 2D, 2B, 4B, and Bead Blast are the least expensive finishes

    • 4A and 4S are the middle priced finish

    • 8A, 8S are the most expensive polished finishes

  • Weld Finish: Non-Ground Welds are always less expensive than Ground Welds

  • Painting

    • Powder Coating is less expensive than Wet Painting

    • The painting and powder coating prices depend on the size of your part and quantity needed

    • There will be set-up charge added to each order (in addition to the piece price) for paint set-up

FABRICATION DETAIL
ENGINEERING DETAIL
FINISHING DETAIL
WELDING DETAIL
QUALITY SYSTEM
MATERIALS

DAD Manufacturing, Inc. | 1400 Industrial Avenue, Hiawatha, Iowa 52233 | 319-395-9427

© Copyright by DAD Manufacturing, Inc. | Legal Notice: All pictures and text from our site are property of DAD Manufacturing, and should not be reproduced or used without explicit permissions from us.
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