Fuser Rollers in copy machines are mainly made from aluminum and steel. In recent years, parts in copy machines are required to reduce its power consumption by shortening warm-up time. 
        Reducing wall thickness of the roller is one possible solution to achieve shorter warm-up time and reduce power consumption.
      
| Aluminum | Steel | |
|---|---|---|
| Specific Heat Capacity (J/gK) | 0.88 | 0.44 | 
| Thermal Conductivity (W/mK) | 204 | 53 | 
Our factory has the ability to provide thin-wall steel rollers of material thickness down to 0.2mm. For this type of metal rollers, we usually add an anti-rust coating with Parkerizing. For Fuser Roller which requires heat resistance, we apply Parkerizing to heat-resistive material to create phosphate treated heat resistive rollers. A black heat-resistive fluorine coating is applied to the inner wall of a Fuser Roller to increase its heat absorption rate.

        (Inner Wall Coating Machine)