During a train-free period on the Maaslijn – the railway line between Nijmegen and Roermond – Swietelsky is conducting a pilot with the screw robot Rowrench 30.77. This test marks a new step in the robotization of railway work, which can yield many benefits.
First deployment of Rowrench in the Netherlands
“As Swietelsky, we have purchased a few of these machines and have looked at how the device fits into our system,” says Frans Leenders, project leader and capacity manager at Swietelsky. “We have tested the robot on various constructions to get a good picture of the possibilities. This is the first time this machine is being used in the Netherlands, so both we and the developer were curious. Given the tight labor market in the railway sector, this device can be a welcome addition.” But speed and quality are also two important reasons for acquiring this robot. “Every screw is monitored, which is good for quality assurance.”
Practical test provides valuable insights
On Saturday, August 9, and Sunday, August 10, the system was extensively tested. The Rowrench has loosened the track in preparation for the arrival of our conversion train - the RUS 1000 S. Fully automatically, the robot has freed almost all screws according to the 1/10 principle in assembly mode. The pilot was deemed successful, but also revealed areas for improvement. For instance, the process does not always run smoothly because the clamps for lifting the spring are just a bit too large, and sunlight affects the operation of the detection cameras. Based on the findings, a report has been prepared. In consultation with the manufacturer, further fine-tuning of the robot is now being considered. But the initial results are promising.
Efficiency and operation
The Rowrench was developed by Robel Rail Automation from Germany. The robot can quickly tighten or loosen eight rail fastenings simultaneously. The operation is done via a remote control, which requires only one person: the operator. Through the control panel, the operator selects the correct track type, after which the machine automatically detects the screws and positions the tightening spindle.
Automation of spring clamps and safety
In addition to screw work, the Rowrench also fully automatically removes or places W-type rail spring clamps. For safety, the machine is equipped with a dead man's switch, both for transport movements and during work mode. Additionally, there is a scanner on the robot that intervenes if a person stands too close to the Rowrench. “Safety first!”
Technical specifications and maintenance
The robot responds to torque and adjusts the spindle motor's speed accordingly. Important data such as torque and GP information are automatically stored. The machine is powered by an electric generator, which is easy to remove. This makes moving the machine with a railway excavator easier and simplifies maintenance.
