The Principles of Swaging

Basic Preparation

• Check the oil level of the swaging machine and fill if required.
• Check the condition of swage tooling to be used, remove any metal pick-up on the working surface and any burrs with fine abrasive film.
• Switch on the swaging machine and oscillate the ram several times to circulate the hydraulic oil.

Internal Swaging

1. Extend the ram.
2. Dependant upon the size of fittings being swaged, fit the appropriate parts to the machine backplate and hydraulic ram, see figures 1 to 4.
3. Lubricate the bore of the stem and position it over the hydraulic ram with the open end of the fitting facing the backplate of the swaging machine.
4. Screw the swaging dolly onto the hydraulic ram and lubricate its working surface.
5. Retract the hydraulic ram to engage and centre the stem securely against the backplate of the swaging machine.
6. Position the ferrule over the stem, with so that the ferrule hook ring is in line with the hook on the stem.
7. Mark off the appropriate "hose insert distance" for the fitting type and size on the end of the hose and insert the hose into the stem / ferrule assembly so that the mark is just visible.
8. Operate the hydraulic ram to pull the swaging dolly through the stem until the operating pressure falls to zero.
9. Remove the swaged assembly, checking that the swaging has been performed correctly.
10. Always clean the swaging dolly and thread after use removing any metal ‘pick-up’ on the working surface of the dolly with fine abrasive film.

External Swaging

1. Retract the ram.
2. Screw the swaging pusher plate onto the hydraulic ram see figure 5.
3. Position the ferrule over the stem, with so that the ferrule hook ring is behind the retaining ring on the stem.
4. Mark off the appropriate "hose insert distance" for the fitting type and size on the end of the hose and insert the hose into the stem / ferrule assembly so that the mark is just visible.
5. Push the hose / end fitting assembly into the swaging machine through the end plate.
6. Dependant upon the size of fittings being swaged, fit the appropriate swaging die holders and swaging die into the end plate.
7. Extend the hydraulic ram to hold the swaged fitting squarely between the pusher plate and the swaging die.
8. Lubricate the outside diameter of the ferrule.
9. Operate the hydraulic ram to push the hose fitting assembly through the swaging die until the operating pressure falls to zero.
10. Remove the swaged assembly, checking that the swaging has been performed correctly.
11. Always clean the swaging die after use removing any metal ‘pick-up’ on the working surface of the die with fine abrasive film.

Swaging Lubricants

General Industrial Swaging

Food Grade Swaging