

RWG-EL Roller Wave Gauge
The RWG-EL Roller Wave Gauge is an easy-to-use tool designed to evaluate the flatness of heat-treated glass. It can be used to measure the peak-to-valley depth of the roller wave as well as the flatness at the edge of the glass called edge lift. The gauge consists of two digital depth indicators mounted on an anodised aluminium base bonded to a Delrin® surface.
Roller wave and edge lift are deviations that occur in flat glass that has undergone thermal heat-treating in a horizontal roller hearth tempering furnace, due to the elevated temperatures. Monitoring of these deviations is an important quality control parameter for flat glass, especially when the lite is intended for use in a laminated or insulated unit where deformations can cause costly field failures. Although deviations cannot be eliminated completely, devices such as the RWG-EL allow glass processors to detect excessive roller wave or edge lift and adjust furnace or glass parameters accordingly to keep these deviations to a minimum.
Please see data sheet for more information. Please do not hesitate to contact us for further information, pricing or to discuss your testing requirements.
- Measures roller wave and edge lift in accordance with EN 1863-1
- Excellent results can be obtained provided that the gauge is properly used and maintained
- Can be connected to a PC with the optional USB cable
- Precision digital display
- Practical and easy to use
Wavelength maximum | Adjustable |
Resolution | 0.01mm |
Distortion sensitivity | 10mdpt |