MAG Tool Inc. - Horizontal Expansion

Flexpander - FE

The model FE FLEXPANDER is a completely unique Tridan development. The Flexpander is a Semi-Portable Mechanical Tube Expander for heat transfer coils. The hydraulically powered Flexpander can expand two tubes per cycle which allows it to expand coils constructed with conventional U-bends or straight tube and return bend construction.

The model FE is statically balanced about its own horizontal operating centerline. This allows rotaion of the Flexpander to accomodate diagonally, horizontally, or vertically oriented hairpin tubes.

The versatility of the Flexpander makes it the ideal tool for use by any size coil producer. The model FE can be used equally well for volume production, in a model shop, or for coil repair applications.

Technical Specifications:
Tube Diameter	5/16" through 3/4" ( 7.94 to 19.05 mm )
Tube Material	Copper, Aluminum, and other thin-wall materials
Maximum Tubing Wall Thicknesses (These values are conservative - contact Tridan for specific requirements)	.030" ( 0.76 mm ) in Copper, 1/4" to 1/2" hard .045" ( 1.14 mm ) in Aluminum, 1/4" to 1/2" hard .025" ( 0.64 mm ) in Cu-Ni 10%, Red Brass, or Mild Steel, Annealed
Tube Center-to-Center Dimensions	3/4" through 3" ( 19.05 to76.2 mm )
Maximum Finned Length Expandable	111" ( 282 cm ) with standard expander rods. Special rod length available
Tubes Per Cycle	Two ( 2 )
Minimum Tube Extension Outside End Sheet Required for Clamping	1/2", ( 12.7 mm), for all diameters, except 3/4", ( 19.01 mm ), which requires 3/4"
Maximum Width of Adjacent End Sheet Flange Required for Clamping	1.375" ( 34.9 mm )
Expansion Speed 60 Hz Power Supply 50 Hz Power Supply	50 to 55 feet per minute ( 15.2 to 16.8 meters per minute ) 40 to 45 feet per minute ( 12.6 to 14 meters per minute )
Setup and Changeover Complete Change Center-to-Center Change Outside Diameter Change Wall Thickness Change	15 minutes 15 minutes 8 minutes 3 minutes

BTM

• Expands up to 9 tubes at a time, ( depends on C – C ).
• Capacity 3/8” – ¾” x .012” - .035” wall.

Semi-Automatic HEX

• Horizontal mechanical expander.
• 4 – 5 times faster than the Flexpander.
• 3/4" tube maximum.
• Can expand up to 6 tubes per cycle on thin wall copper and aluminum:
- 6 tubes for center to center 1.000” to 1.750”.
- 5 tubes for center to center 1.751” to 2.188”.
- 4 tubes for center to center 2.189” to 3.000”.
• Minimum tube extension outside end of sheet required for clamping:
- ½” for all diameters except ¾”.
- ¾” requires ¾”
• Expansion speed:
- 60 Hz power, 50 – 60 feet per minute.
- 50 Hz power, 42 – 50 feet per minute.
• Complete tool change over is 45 minutes.
• Not to be used with hairpin tube construction.
• Precise control of the amount of Fin-To-Tube Bond, when compared to hydraulically expanded coils.
• Self contained air system for height adjustment, very slick and standard.
• Automatic length stop and return are optional.
• Uses decel switches.
• Set thrust washers @ 24 PSI, ( same as Flexpanders ).
• Torque wrench provided by Tridan.
• Gears @ 24, ( 3 heads with 8 gears per head ).
• HEX-3 is for 3/8” to ¾”.
• HEX-4 is for ½” to ¾”.