BENEFITS: Also known as Double Loop Wire binding, or Ring Wire binding, Twin Loop Wire binding is relatively fast for mechanical binding. Wire gives an aesthetically pleasing finish and a sense of quality to the bound pages. Bound documents open easily, lie flat, and fold over 360°.

Additional benefits are:

• Pages can be removed without damage.
• Withstands temperature extremes.
• May include an integral hanger.

APPLICATIONS: Reports, books, surveys, sales presentations, reference materials, training manuals, cookbooks, calendars, notebooks, proposals, summaries.

SYSTEMS & FEATURES: Machines are available in manual and electric models. Many also punch patterns for comb and plastic coil binding. Inexpensive units are limited in the number of sheets they can punch at one time which will slow production considerably.

Electric closers can greatly increase productivity.

COST: Manual machines range from about $595 to $795, while electric systems are $1,995 to $6,000.

HOW IT WORKS: Wire is available in two patterns - 2 loops (2:1 pitch) per inch or 3 loops (3:1 pitch) per inch. The number of holes in the documents must match the wire pattern. The wire comes "open" so that the punched pages can be inserted into the loops. After all of the pages are in place the book is inserted into a closing machine where a closing bar either electronically or manually closes the wire to a predetermined diameter, making a round, sealed bind.

PRODUCTION SPEED: Depending on thickness, up to 300 per hour for ¼" book.

MAX FINISH SIZE: 12 x 18 inches.

DOCUMENT THICKNESS: 3/16" to bind up to 30 sheets through 1½" to bind up to 310 sheets of 20# bond.

MAX FINISH SIZE: 12 x 18 inches.