How do I bind documents with the GBC TL2900 electric wire closer?

posted this on Jan 27, 2016

The GBC TL2900 Electric Wire Closer (formerly the Ibico 340WB) is a versatile production system that will enable the end user to produce attractive wire-bound documents. Though ruggedly built, the 340WB is compact and light enough to be used on any table or desk. It has been designed for easy operation as part of the GBC product line of binding equipment.

Here are some simple steps for binding documents with the GBC TL2900 wire closer …

  1. Select the appropriate size wire binding element for your document by either using the chart below, or using the Wire Size Guage Label on the TL2900 as a reference.
  2. Adjust the knob so that the desired size shows approximately in the center of the window. TIP: This is a starting point reference. It is best to make a test bind and adjust the knob for your personal preference. To make the crimp tighter, turn the knob so that the number of moves toward you in the clear window. Slight adjustments may be necessary to achieve the perfect crimp. It is acceptable for the wire size to appear anywhere within the window.
  3. Load the wire element onto the support hooks. TIP: Hold the wire loosely across the trips of your fingers, with the wide hooks facing downward. Orient with the left edge just touching the Edge Guide. Allow the wire to naturally find itself on the hooks with a dropping motion as you guide the wire up and over. Once you get the feel for this motion, you will be able to easily hang the wire onto the books.
  4. Thread the document contents onto the hooks, oriented so that the first faces up. Then thread the front cover face up onto the wire document. Finally thread the back cover, inside up, onto the wire element. As an alternative you may prefer to stack the entire document as per 5, 6, 7 above, and lay the whole document on the wire hooks at one time to show ease of operation. Try working with the system both ways until you are comfortable with it.
  5. Bring the clamp forward over the hooks.
  6. Press and HOLD the two activation buttons on either side of the closer, until the LED’s indicate, “DONE”.
  7. Push the clamp back.
  8. Remove the bound document from the hooks by gently pulling upward on the document until the wire is out of the hooks. Do not pull forward on the book, as you may risk breaking the hook.
  9. Flip the back cover around so that the wire seam is hidden between the last page and the back cover of the document.

For reference, here is a sizing guide for twin loop wire binding

Wire Size Chart 

Maximum 

Book 

Thickness 

Maximum Sheet 

Capacity Using 

20# Bond 

Twin Loop 

Wire Size 

Twin Loop 

Wire Size 

Loops Per 

Inch 

3/16” 

46 

1/4” 

6mm 

THREE 

1/4″ 

62 

5/16” 

8mm 

THREE 

5/16” 

78 

3/8” 

10mm 

THREE 

3/8” 

93 

7/16” 

11mm 

THREE 

7/16” 

109 

1/2” 

13mm 

THREE 

1/2” 

125 

9/16” 

14mm 

THREE 

9/16” 

140 

5/8” 

16mm 

TWO 

5/8” 

156 

3/4″ 

20mm 

TWO 

3/4″ 

187 

7/8” 

22mm 

TWO 

7/8” 

281 

1” 

25mm 

TWO 

1-1/8” 

250 

1-1/4” 

32mm 

TWO 

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