Fine pressed strainer cores are more dimensionally accurate and have better handling properties than ceramic foam filters. but are less effective at removing non-metallic inclusions and reducing turbulence.

The advantages of RODEX are as follows:

• even geometrical shape
• high dimensional accuracy
• good mechanical and handling properties

There are three types of fine strainer core in the RODEX range:

RODEX
The standard quality for grey, ductile and malleable irons. The maximum pouring temperature is 1450 ºC which should not be exceeded.

RODEX HT
This is the High Temperature quality which can be applied up to 1500 ºC. This type is also recommended for use when pouring heavy moulds, for extended pouring times or when direct pouring onto the filter in combination with high ferrostatic pressure (i.e. heights > 400 mm).

RODEX ST
For steel casting,  the ST quality is available. The maximum application temperature is 1650 ºC. Sizes up to 100 x 100 have proven suitable for direct pouring onto the open face such as when used in a pouring bush.

The cell size must be chosen according to the metal to be poured. Grey iron requires cell diameters of less than or equal to 2 mm; spheroidal graphite iron and steel casting require cell diameters of 2 mm and greater.