Rio Tinto

The product is thought to be an improvement over the present voltage reduction device. The new device is remotely operated, meeting the DPI requirements for the selection of welding control devices. The new device, ‘Zero Voltage Reduction Device’ (ZVRD) is thought to solve the short comings of the ‘Voltage Reduction Device’ (VRD).


I recommend RTIO do the same and adopt this device in lieu of any other for welder safety

KY Tech - USA

Zrid welder- This is the best way of preventing accidental arc strikes and electrical shock for students that I have ever seen. Beginning students are unfamiliar with welding equipment, causing them to be nervous when welding. Some students I have had, particularly girls, are so afraid of getting burned or shocked that this really inhibits what they learn the first few weeks of class. This system helps students to focus more on learning to weld and less on getting shocked or burning their eyes with an arc flash. This in turn helps to prevent accidents and injuries to students, which is every welding instructors number one concern.

Rockhampton Grammer School

We have been using the Z-rid for over 2 years and are very impressed with the Z-rids ability, reliability, as well as, the amount of safety it provides. The Z-rid has allowed our Industrial Department to implement welding at a much earlier stage of the curriculum, allowing students to experience and begin training sooner and reduced all welding incidences to zero. The main benefits that we have identified are:

  1. No reported welding flash due to inexperienced operators (for student and teacher)
  2. No false starts
  3. More student confidence and control
  4. An ability to lockout the welders, limiting unauthorised use by student
  5. Greater teacher confidence in controlling the hazard 

Business Training Centre

While implementing your devices into school welders our students achieved commendable safety results. The exceptional performance of your devices was noted and appreciated. So far we had zero disabling injuries and your company made a significant contribution to our safety programme 

KY Tech - USA

Grinder with double tap switch- This is a very effective way of controlling accidents associated with hand grinders. So many times when using grinders with paddle switches or a standard on/off switch, students will lay the grinder down on a table or other surface and accidentally trip the switch causing the grinder to come on and creating a hazard.