Union Tool Corporation

The Union Tool Corporation
P.O. Box 935 • Warsaw, IN 46581
Phone: (574) 267-3211 • Fax: (574) 267-5703

Shipping Address: 1144 N. Detroit St. • Warsaw, IN 46580

Special Functions

 

Machine Functions

 

Industry/Applications

Movers / Coaters

Dual Head Hot Melt Roller Coater

Roller Coater Series 45 - Union Tool 2035

This dual head hot melt roller coater applies hot melt to the bottom side, or both sides, of the substrate in one operation. Switch between single-sided and double-sided coating with the flip of a switch.

Roll Configuration

The Model A/D configuration is actually two configurations in one. In the Model A/D, the top coating roll and its companion doctor roll move up and down as a unit; there is also a movable backup roll that moves out of the way when the top coater roll is in the lowered position (in "double coater" mode), and moves over to take the place of the top coater roll when it is in the raised position (in "single bottom coater" mode). Changing modes can be done "on the fly" with the flip of a switch.

In the Model A/D running as a Double Coater Roll Configuration, the liquid coating for the bottom surface is held in the trough between the bottom coating roll and its companion doctor roll; the liquid coating for the top surface is held in the trough between the top coating roll and its companion doctor roll, which is in the lowered position. In this mode, the movable backup roll is moved away and does not participate in the coating operation.
In the Model A/D running as a Single Bottom Coater Roll Configuration, the top coating roll unit moves up out of the way and the movable backup roll slides in to take its position; the backup roll simply assists with moving the substrate through the machine. The liquid coating for the bottom surface is held in the trough between the bottom coating roll and its companion doctor roll.

Synonyms

Depending on your industry, you may call this a duel hot melt roll coater, a twin head hot melt coater, a double-headed hot melt roller coater, two-sided hot melt applicator, or a two-head hot melt roll coater. Whatever you call it, it applies hot melt adhesive, it does it with rollers, and there are two sets of rollers ... and it applies hot melt to the bottom side, or both sides, of the substrate in one operation.

Operational Description

Introducing the The Union Tool Corporation's newest version of the Union Hot Melt Roller Coater! This new model is referred to as the Union Series #15, Model A/D, 54" Hot Melt Roller Coater, specifically designed to provide single or double coat applications with the flip of a switch.

The Union Series #15, Model A/D, 54" Hot Melt Roller Coater has revolutionized the laminating process in the RV industry by combining the work of two machines into one. Normal sidewall construction of an RV requires three glue lines. Past applications required two separate roller coaters, one of which double-coated the inside core materials, and another that single-coated the backside of the interior wall. This new roller coater allows the operator to select single or double coating with the flip of a switch, completely eliminating one roller coater from the operation, not to mention reducing the number of heated hoses and valves associated with dispensing hot melt adhesive to two separate roller coaters.

The double head roller coater incorporates a single chrome-plated backup roll that moves into position through the use of air cylinders. When double coating, both coating heads are parallel with each other to coat both sides of the core material. The single coating operation automatically moves the top coating head away and replaces it with a single chrome-plated backup roll. In the single coating operation, only the bottom side of the substrate gets coated. Going from double coating to single coating can be done with every other panel or every five panels.

This newest Hot Melt Roller Coater has all the standard features of our other machines, such as heated doctor and coating rolls, spring-loaded Teflon seal plates, hot oil heater located within the frame of the machine, hinged infeed and outfeed tables, and seven-day timer for automatic startup of oil heater.

In simple terms, this new machine will save the customer money and production space. It doesn't get much better than that!