Tube Expander Manufacturer,Supplier and Exporter in India
Product Code : EL-AELE-12910
Jlab Export is a leading Tube Expander Manufacturer,and suppliers in India
A tube expander opens out the end of a copper tube so that a second tube of the same size slides into it for brazing. This hand expander covers 6, 8, 10, 12, 18 and 22 mm OD tube. It folds for storage and has an anti-slip handle.
Specifications
| Tube sizes | 6, 8, 10, 12, 18 and 22 mm OD |
| Handle | Anti-slip |
| Design | Foldable |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 4–6 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Swaging Practicals in the RAC Workshop
In a brazing exercise, students cut two pieces of Copper Pipe in the 6 mm or 8 mm size and clean the ends with a Reamer. One end is expanded to form a socket, and the plain end of the other piece is pushed in. The joint is brazed with a copper-phosphorus Brazing Rod. When cool, it is sawn along its length to show how far the filler ran.
Teachers can set a swaged joint beside one made with a coupling, to show that the swage has one brazed seam instead of two. Students also learn to check the fit before heating: the inserted tube should slide in by hand with no side play.
Frequently Asked Questions
Why expand the tube with its open end facing down?
Any copper shavings or dirt loosened while the end is worked then fall out instead of into the line. Debris inside a refrigeration circuit can block a capillary tube or a valve later.
Which tube sizes does it expand?
Tube of 6, 8, 10, 12, 18 and 22 mm outside diameter. Work on soft or annealed copper, since hard-drawn tube can split as the end is stretched.
Why does a loose swage make a poor joint?
Brazing alloy is drawn into the joint by capillary action, and that works only in a narrow, even gap. A loose socket leaves a wide gap the alloy cannot fill, so voids and leaks follow. Test the fit before heating.
Why ream the tube before expanding it?
A burr left by the cutter can start a split when the end is stretched, and it also narrows the bore. Ream and clean the end first, then expand it in one steady action.
Why does the handle fold?
So the tool takes little space in a toolbox or on a tool board when it is not in use. The anti-slip grip gives a firm hold while the end is being expanded.
Other Flaring and Swaging Tools
- Hydraulic Flaring And Swaging Tool Kit (hydraulic pump with swaging adapters)
- Eccentric Flaring Tool
- Tube Cutter (heavy duty, aluminium body)
- Abrasive Strip (Sand Paper) (for cleaning tube before brazing)
For a quote, use Add To Cart or send us a message through the contact page.
Last updated: 5 November 2026
