Non parallel self feeding boiler tube expanders from ½” to 4”. Suitable for new erection or repair work that have thin tube sheet or just touch up a leaky joints. Recommended for tube sheets from 1/8” to 5/8” (3 mm to 16 mm).
This tool is designed primarily for the fabrication and maintenance of Fire Tube Boilers with Tubes of 2”-3” OD. This self feeding, straight roll tool, is capable of simultaneously expanding and forming a uniform bead tight upon the tube sheet. For the best results we recommend a tube projection of 3/16” (5 mm).
Three rolls, Self feeding tube expanders. Flip type thrust collar, accommodate tube sheets of 3/8” to 1” thick. An excellent expander for re-rolling a leaky tubes and for new constructions of Water Tube Boilers, Fire Tube Boilers, Economizers, Air Heaters. Expanders with 4, 5 and 7 rolls are available on request.
Three expansion rolls and three flare rolls, self feeding tube expanders with adjustable thrust collar for friction free operation and long tool life, as well as allow to adjust the flare length. This expander will simultaneously expand and flare the tube. Adjustable collar allows consistent flare length. An excel- lent expander for re-rolling a leaky tubes and for new constructions of Water Tube Boilers, Fire Tube Boilers, Economizers, Air Heaters. Expanders with 6 rolling rolls and 3 flare rolls are available on request.
Three rolls, Self-feeding adjustable reach tube expander for deep reach expansion. Parallel rolling with long effective double radius rolls. Rolls are self-retained in the cage. An excellent expander for use as a touch-up expansion as well as a hard rolling and re-rolling a leaky tube and for new constructions of Water Tube Boilers, Fire-Tube Boilers, Economizers, Air Heaters. Expanders with 4, 5 rolls, with long rolls or longer reach with 2-inch increments are available on request.
Recommended roll length for varies tube sheet thickness:
Tube Sheet Thickness
Roll Length
1/2” - 3/4” (12mm - 19mm)
40
7/8” - 1-1/4” (22mm - 32mm)
50
1-3/8” - 1-3/4” (35mm - 45mm)
60
1-7/8” - 2-1/4” (48mm - 58mm)
80
2-3/8” - 2-3/4” (60mm - 70mm)
90
Key Features
Three rolls, Self-feeding adjustable reach tube expander for deep reach expansion. Parallel rolling with long effective double radius rolls. Rolls are self-retained in the cage. An excellent expander for use as a touch-up expansion as well as a hard rolling and re-rolling a leaky tube and for new constructions of Water Tube Boilers, Fire-Tube Boilers, Economizers, Air Heaters. Expanders with 4, 5 rolls, with long rolls or longer reach with 2-inch increments are available on request.
Three Expansion Rolls, three flare rolls, self feeding boiler expanders. This expanders simultaneously expand and flare the tube. An excellent expander for re-rolling leaky tubes and for new constructions of Water Tube Boilers, Fire Tube Boilers, Economizers, Air Heaters. Expanders with 6 expansion rolls and 3 flare rolls are available on request.
Recommended roll length for varies tube sheet thickness:
Tube Sheet Thickness
Roll Length
1/2” - 3/4” (12mm - 19mm)
40
7/8” - 1-1/4” (22mm - 32mm)
50
1-3/8” - 1-3/4” (35mm - 45mm)
60
1-7/8” - 2-1/4” (48mm - 58mm)
80
2-3/8” - 2-3/4” (60mm - 70mm)
90
Feature :
If you order expander KS-54 with rolls of 50 mm you should specify KS-5450, with 60 mm KS-5460… Short mandrel set with shorter length on request.
For this expanders there are available special bottle type rolls which reduce the effective roll length. Max. for 10 mm from the front of the roll.
