Ceramigard is a unique surface finish of Di-Aluminium Tri-Oxide (AL₂0₃): a hard, corrosion resistant ceramic like coating protecting all body surfaces against wear and corrosion.

Actuators are typically made from aluminum - but why?

• Low weight- good for manual handling, reduces mounting loading and distortion.
• Overcomes problems where actuators are not mounted vertically above the valve.
• Relatively low cost / high specification material.
• Low coefficient of expansion so tends not to create problems due to thermal cycling.
• Relatively easy to cast and extrude and so is economic to produce accurate castings.
• Relatively easy and therefore cost effective to machine accurately.
• The problem that relative to steel/iron the material, in its untreated state, is relatively soft and not particularly hard wearing.

Why do we use Ceramigard

To extend actuator life by being:

• More resilient to particles entering the unit.
• More wear resistant than untreated or anodised aluminum.
• Corrosion resistant.

How and what do we do to the product?

• Applied to the body of the actuator - an intentional oxidisation of the surface.
• End caps are anodised.
• Aluminum trioxide Al₂0₃ a very hard crystalline surface treatment up to 125um (anodising up to 30um only).
• Forms a compressive skin that won't de-laminate.
• Very hard finish.
• Wear resistant.
• Toughens up threads.
• Very small increase in size.
• Pockets equivalent to 1 foot wide and 100 yards deep - good for grease retention.
• Corrosion resistant.