These tools are engineered with a flat tip (flat-bottom landing) to score through the top aluminum skin and polyethylene (PE) or mineral core while leaving the bottom aluminum skin intact (~0.2 mm–0.4 mm of core) for clean, crisp box/tray bending without cracking the outer skin.

OEM & Compatible Folding Bit Part Numbers Breakdown

Technical Parameters for ACM Folding Cutters

• Flat Tip Landing Width: Typically ground to 0.090" – 0.125" (2.3 mm – 3.2 mm) flat bottom. This ensures the fold forms smoothly along a flat, controlled radius rather than a sharp point, which prevents outer skin metal tearing.

• Cut Depth Setting (Critical): On standard 3 mm or 4 mm ACM, set the total cut depth to leave 0.012" – 0.016" (0.3 mm – 0.4 mm) of core material on top of the bottom aluminum skin.

• Operating RPM & Feed Rate:

  • Spindle Speed: 16,000 – 18,000 RPM

  • Feed Rate: 120 – 180 IPM (3.0 m/min – 4.5 m/min)

  • Passes: Single-pass cut for best accuracy and thermal efficiency.

Best Practices for MultiCam ACM Folding Setup

1. Calibrate Z-Zero accurately: Use a digital touch plate or pressure-sensitive tool setter to establish precise spoilboard zero, as a variance of even 0.1 mm can result in either skin tearing or insufficient bend depth.

2. Vacuum Hold-Down: Ensure localized high-flow vacuum hold-down to prevent sheet bowing under the vertical pressure of the V-groove tool profile.

3. Chip Removal: Direct compressed air toward the cut path to keep molten plastic core debris from packing into the V-groove tip.