When I first read through your post, I thought you were referring to glue pots driven from the top vs driven from the bottom. Reading a bit closer it looks like you are talking about glue pots that sit below the roller that use an auger to bring glue up to the roller vs glue pots above the roller that allow gravity to do the work.
There is no feature on an edgebander as important as the glue system. I have repaired machinery since 1982 and specifically in the Woodworking Industry since 1990. I have worked on close to 20 different brands, glue pots below the roller, above the roller, and nozzles. When it comes to glue application no design or manufacturer even comes close to the Ott Combimelt system. This is the only glue pot that is actually driven from above. This translates to no seals in the bottom of the pot, no glue leaking down drive shafts, and a pot and hopper that can be pulled and stored in about 30 seconds. I will give a video link that shows the pot being pulled.
Consider other features beside the glue pot as well. Ott edgebander workstations are servo controlled, including the glue dosage. There is zero set up time. I took several technicians from the U.S. to Ott for factory training. We had three different panel edges (1mm, 2mm with chamfer, 2mm with radius) all running on the feed track at the same time on a 7.3-meter machine. All edges were perfect with an invisible glue joint. I visited high volume factories while there with machines several years old that produced the same perfect quality panel during production.
I am in the U.S. and cannot help you with purchasing an Ott, but copy and paste this link, https://www.ottpaul.com/de/haendler to locate the two Ott dealers in Australia. You can gather quite a bit of information from Nutek Machinery’s website or youtube channel. For forum readers in the U.S., you can see an Ott at Nutek Machinery’s showroom in Bedford, OH anytime, during our open house June 9-11th, or at AWFS in July.
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