Joining Data Sheet A-4LL

Product Code:	A-4LL Click here to open Product Data Sheet
Product Group:	Polyamide power transmission belts
Joining System:	Thermofix

• Joining is also possible with other Habasit devices.
• Machine setting data should be derived from the relevant operating instructions.
• Read the operating instructions of the necessary tools carefully before making the first joint.
• All data are approximate values and defined under the following standard climatic conditions:
  > 23 °C/73 °F, 50 % relative humidity (DIN 50005/ISO 554), working voltage 225 - 235 V / 105 - 115 V.
  > Any change of these data may require different temperature and/or time and/or pressure.
• For further support, please contact the Habasit company responsible for your location.

Prepress belt ends to improve flatness during skiving and to avoid thermoshrink effects during joining.
Pressing Temperature:	100 °C 210 °F
Pressure setting:	17 Nm
Pressing Time:	10 min

	Top
3		Pressure plate; top (with thickness equalizer)
2		Belt end
1		Heating plate; bottom (with set up plate)
	Bottom

Skiving device:	AT-300/301

Recommended joining angle:	60°
Skiving angle (setting value):	0
Paper grit:	50
Target Skiving Length:	90 - 110 mm 3.5 - 4.3 inch
Working Length:	140 mm
Feeding speed, advance:	30
Feeding speed, return:	50
Mode of skiving:	1 or 3
Number of operations:	1
Skiving explanation:	CAUTION DURING SKIVING: Fix belt ends on the skiving table with a double sided adhesive tape., It is VERY IMPORTANT to apply acetone on the skived ends (leather lips) after the skiving procedure to support easy removal from the adhesive tape. Leather lips would be destroyed without this cautionary procedure !!

Step 1 > Mark off leather (friction cover) and polyamide area (traction layer) with fine straight lines running parallel to the cutting edge (ball point pen or pencil). > Add total quantity of component B to component A of the Polycol adhesive and mix THOROUGHLY. > Use spatula or brush. Coat evenly and THINLY indicated leather areas of BOTH skived surfaces with Polycol mixture (A+B) (see sketch). > Allow to air for about 30 min. > The Polycol mixture (A+B) will begin to harden after 5 h. Close container with plastic lid if process is interrupted.
Step 2 > Use an acid-resistant brush. Coat evenly and THINLY the indicated polyamide area (traction layer) of BOTH skived surfaces with Fixol (see sketch). > Rub in with brush until Fixol becomes tacky. > Use spatula or brush. Coat evenly and THINLY indicated leather areas of BOTH skived surfaces with Polycol mixture (A+B) (see sketch). > Allow to dry for about 10 min. > The adhesives must exactly cover the prescribed surfaces. > Close adhesive containers well.

Hot Pressing Device:	PT-300

Belt/Tape Width Range:	0-200 mm
Pressing Temperature, Bottom:	100 °C 210 °F
Pressure setting:	17 Nm
Pressing Time:	35 min
Cooling Time In Hot Pressing Device:	15 min

	Top
4		Pressure plate; top (with thickness equalizer)
3		Heat equalizing plate; top
2		Belt (conveying side up)
1		Heating plate; bottom (with set up plate)
	Bottom

Pressing Remarks:	REMARK: Use heat equalizing plate of PM-301 (P-0338000) or similar sheet of galvanized steel.