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Edgebander Temperature

4/14/18       
Larry

Whats a good low/high temperature to run an edgebander gluepot for Jowat unfilled 280.90?

4/15/18       #2: Edgebander Temperature ...
stu

https://www.richelieu.com/documents/docsPr/JW/28/09/04/4/JW2809044/1366828.pdf

4/15/18       #3: Edgebander Temperature ...
Larry

Ive got the spec from Jowat, but the temperature for my glue pot seems too high. They show 210 as the high limit. My pot is set at 205. The glue burns too much. Thought I might set it a little lower. Maybe 200.

4/15/18       #4: Edgebander Temperature ...
Rob Young  Member

Website: http://www.cmsrepair.com

There are two major components to consider when setting the temperature of your glue pot.
1. The speed of your track.
2. The application temperature range of the glue you've selected

You'll notice on the glue manufacturer's spec sheets that these are given in ranges not definitive numbers. The temperature and track speed for the glue you are asking about is:

Application Temp: 190-210 C (374-410 F)
- Feed Speed: roller application: 18-60 m/min (50-180 ft/min).

The amount of time it takes the board to reach the first pressure roller after glue is applied at the pot is known as "open time". This determines what you set the temperature of the glue at. The temperature needs to be within the range the manufacturer recommends.

If your track speed is on the low end, in this case 18 meters/minute you would set the glue temperature at the high end of the recommended temperature range or 210 degrees.

If your track speed is on the high end listed 60 meters/minute you would set the glue temperature at the low end of the manufacturer's recommendation or 190 degrees. The goal is for the glue to be hot enough to squeeze out top and bottom at the pressure roller station, giving a smooth appearance, and be set to avoid de-lamination as the board travels through the various stations. If you set the temperature too hot the banding can slip on the edge or be pulled loose especially in the case of 3mm. Set the temperature to low and the glue doesn't squeeze out properly giving you a poor appearance and de-lamination problems in the field.

Selection of the glue you use is based on the type of edge you are applying and the limitations of your machine.

I normally recommend Jowat 280.3 to my customers. The operating range is:

- Application Temp: 180-200 C (356-392 F)
- Feed Speed: roller application: 5-40 m/min (15-120 fpm)

The feed speed on the 280.3 is typically in a more appropriate range for most edgebanders.
When selecting glue look first at the track speed on your edgebander to make certain the glue is appropriate for your machine and within your machines capabilities. If the glue is appropriate for your machine then look second at the material you are applying to make certain the glue is appropriate for the edging.

4/15/18       #5: Edgebander Temperature ...
Larry

I'll try the 280.3. The feed speed is 12.5m, an old Basic 2. I am still concerned about the burning glue. I seem to have to clean the glue pot too much. Of course, this happens in the middle of a run of edgebanding where the glue pot starts clogging.

4/16/18       #6: Edgebander Temperature ...
Dan

Without knowing the machine...
Check your machine's temperature (actual) to what is set. Take some readings around the pot with a laser meter. If you don't have access, call an appliance servicer, they're usually armed.You could have an issue with the pot's sensor or a heating rod near the sensor. That can cause the rest of the pot to overheat and burn glue.

4/16/18       #7: Edgebander Temperature ...
Rob Young  Member

Website: http://www.cmsrepair.com

Larry, Here are a few tips to reduce burning in your pot.

1. Don't over fill it. If you aren't running parts through your machine 8 hours a day everyday you want to limit how full you keep the pot. You don't want to be guilty of filling the pot all the way up on Monday and running for an hour ever day through Friday with the same glue. There's no reason to have a cycle where the same glue in the pot is heated cooled and reheated unnecessarily. I'm a huge fan of a premelt station and keeping the glue level in the pot as low as possible. Should you ever replace your Basic2 make certain your new machine has a premelt.

2. Make certain the glue temperature goes into a standby mode if you won't be running it for a half hour or more. The temperature should be 140 to 150 C. This will allow a quick heat up and you won't cook the glue in the pot. If you don't plan on running for several hours turn the glue pot off.

3. Clean your pot as needed. Once the glue begins to burn it will continue to build up and cause heating issues in the pot.

4. It's not a bad idea to bring in a tech from SCM or a reputable independent that knows edgebanders. You're machine is an older one that most companies have already replaced. If you want to continue to produce good parts without big frustrations a well tuned machine is critical. At some point you'll draw the line on putting money into an older machine and simply replace it with a more productive newer machine. That point in time will be determined by your production needs and how much money you find yourself putting into your Basic2. I've worked on dozens of brands so I'm more then happy to share my observations with you should you get to the point that replacing your machine becomes an option.

4/25/18       #8: Edgebander Temperature ...
Matt

We determine our required glue temperature in the following way. Has always worked for us.

1) Must be within the bounds specified by the glue manufacturer for that glue.

2) Use the lowest possible temp you can use without having adhesion problems, or "stringy mess" buildup near the glue applicator.

In other words, set your machine to the lowest setting of your chosen glue and start there. Do peel tests. If they feel strong, move forward with production and keep an eye out for stringy glue strands, which indicate that your glue is a bit too cool. Bump it up by 5 degrees Celsius each time.

If getting a good strong glue bond requires you to set the temp so high that it's burning the glue, you are using the wrong glue. Or you have old PVC edgeband with deteriorated primer coating on the back.


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