Welding fabrics by hand is an easy and inexpensive way to complete small jobs, build prototypes, or complete repairs either in the shop or the field.
Variable Frequency Drives (often known by their initials: VFDs) convert a fixed-frequency supply voltage (60 Hz in North America) to a continuously variable frequency. By controlling the frequency of the voltage supplied to an AC motor, we can control its rotational speed and minimize stress. A VFD can control two main elements of a 3-phase induction motor: its speed and torque.
Taking the time to perform some quick maintenance tasks on your machine now can save you downtime during the roofing season. Whether you have a VARIMAT, BITUMAT, or TRIAC, the checks you should make are largely the same across all equipment.
Achieving a watertight weld on geomembrane material is all about finding the correct balance of parameters: temperature, speed, and pressure. Leister has produced the below chart as a handy starting point for welding with their geomembrane equipment. Be sure to conduct test welds before commencing.
Choosing the correct blower is a fundamental step in designing a functional and efficient system. We’ve covered the basics of Regenerative versus Centrifugal Blowers and Understanding Blowers as part of System, in this article we’ll show how to read a blower curve and use that information to specify the best blower for your project.
Most blower suppliers use similar types of specifications to describe the blower function. Below is an example of a typical blower spec sheet.
Broadly, there are two types of hot air plastic welding tools: manual tools and extrusion welders. Manual tools are ideal for very small fabrication work, detailed projects, and repair work. Extrusion welders are suited for larger fabrication projects such as tanks, chutes, liners, and piping.
You’ve read our article on Industrial Fabrics Joining Methods and selected hot air welding (which carries several advantages), now it’s time to pick which machine is best for the job. Broadly, there are two types of hot air welding tools: automatic and manual. Automatic tools can be further broken down into moving and stationary.
Air knives are used in many industries to remove unwanted materials from processes. This can range from blowing water off of bottles in a bottling facility to removing cooling fluid in a metal rolling plant to removing crumbs from a bakery conveyor system. While the use of air knives for blow-off is widespread, so are the errors in setup that cause ineffective or inefficient operation. In this article we will review some of the fundamentals of implementing an effective blow-off system.
The Leister UNIFLOOR is a fast, reliable welding machine for installing linoleum, rubber, PVC, or TPU flooring surfaces. This quick how-to guide will get you started welding flooring in no time!
The best way to minimize downtime to is to take proper care of your tools both on and off the roof. Here are our top 5 tips to keep your tools in good working order throughout the roofing season.