Diamond 7 Electric Round Cornering Machine

The Diamond 7 is our top of the line tabletop heavy duty electric corner rounding machine. It can round 7cm or up to 700 sheets of 20 lb paper. The Diamond 6 and 7 are the perfect machines for large volume jobs that require high productivity.

Product Description

• Cuts up to 2.75″ (70mm): The Diamond 7 cuts 2.75″ or 700 sheets of 20 lb paper.
• 7 Interchangeable Dies: Available dies include 1/8″, 1/4″, 3/8″, 1/2″, 5/8″, Straight, and Half-Moon.
• Protective Safety Cover: Keeps your fingers safely out of the cutting area during use.
• Patented Die Design: Patented upper die design & micro-adjustable lower die, allow for smooth and accurate cuts.
• Detachable Pressing Bar: Holds paper in place during the rounding process and also detaches for easy replacement of knives (Diamond 7 only).
• Manual & Auto Mode: Switch between automatic foot pedal or manual hand operation with the flip of a switch.
• Tool & Scrap Box: Separate built-in storage bins for tools and corner scraps.
• Large Work Table
• Heavy-Duty Foot Pedal


Model: Diamond 6 Diamond 7
Maximum Rounding Capacity: 2-3/8″ (60mm) 2-3/4″ (70mm)
600 Sheets (20 lb) 700 Sheets (20 lb)
Maximum Slot Capacity: 2mm N/A
Included Die: 1/4″
Available Dies 1/8″, 1/4″, 3/8″, Straight, and Half-Moon (1/2″ and 5/8″ are Special Order)
Detachable Pressing Bar: No Yes
Protective Safety Cover: Included
Work Table: Included
Storage & Trash Bin: Included
Motor: 100 W 200 W
Dimensions: 24-5/8″ W x 12-5/8″ L x 17-1/2″ H
Weight: 104 lbs 110 lbs