Paul Jones says
The Gyspot Alu Pro FV is a capacitor-discharge dent pulling system for straightening aluminium body panels such as doors, bonnets and wings without removing the panel.
In a bodyshop, the automatic gun welds aluminium M4, M5 or M6 studs to the prepared panel. A pulling bridge, slide hammer or suitable hook can then draw out the damaged area progressively before the studs are removed and the surface is finished. The process is useful where access behind the panel is limited, but it depends on clean aluminium and a sound electrical contact.
I pay particular attention to surface preparation and the gun’s spring pressure. Contamination, coatings or poor contact at the integrated brass earth points can cause inconsistent welds or damage the panel. Power and voltage settings also need to match the stud size and panel thickness rather than simply being set to maximum.
A common fault in practice is trying to pull too much metal in one operation. Controlled, localised pulls produce a better repair and reduce stretching. With correct preparation and adjustment, the unit is reliable for professional aluminium body repair.
Paul Jones, Technical Director