How-to Guide: Welding with the UNIFLOOR

​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! 

Before beginning to weld, the flooring joint or seam edges must be milled or grooved to approximately 2/3 of the thickness of the material. For more information, see our article on Welding Resilient Flooring.
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Be sure to test your welding parameters on scrap material first before moving on to welding your installed floor. ​

Configuring the Machine

1. Check nozzle position: When lowered, the nozzle should be 2-4 mm from both the flooring material and the welding rod.
2. Check nozzle configuration: When welding linoleum, lower the cover (28) onto the welding nozzle (4); for all other materials leave the cover open. ​
   

Positioning the Machine & Welding

1. Swivel hot air blower out and up using the lever (19).
2. Position the machine over the joint to be welded. Insert welding rod through welding rod guide tube (20), pull under the welding rod pressure roller (6), and place it in the joint.
3. Place guide roller (21) in groove. If equipped with optional trolley attachment, lower machine into place.
4. Plug the tool in and switch on using the main switch (14). The hot air blower (13) will start automatically.
5. Set your welding parameters using knobs 16, 17, and 18. These parameters are found by performing test welds with scrap material.
   
6. Swivel the hot air blower (3) into place using the lever (19) to start the machine.
   1. If necessary, the tool can be started manually using the drive switch (15).
7. The wall switch-off automatically turns off the drive and heat when contact is made with a wall. Alternatively, use the swivel lever (19) to move the hot air blower (3) out and up to stop the machine.
8. Before shutting off power to the machine, set the air temperature to zero using the potentiometer (18) and allow the machine to run without heat for several minutes until the Temperature ACTUAL-value on the display (12) is close to ambient temperature. This is important to prolong the life of the ceramic element found in the hot air blower.

Have questions? Contact your technical sales representative for help. 

Originally published: 06/30/2015