Automatic Knot Plugging Machine - Alomat AL310L-A

Alomat AL310L-A at a Glance:

• Automatic plugging of wood defects with normal plugs and real knot plugs
• Short cylce time of 2.2 s
• 66 % less energy consumption compared to predecessor model AL100L-A
• Operator easily chooses to plug with normal plugs or real knot plugs only by switching the foot valve without further settings
• Workpiece clamping by lowering the unit
• Workpiece thickness up to 170 mm max.
• 10 mm clamping stroke
• 15 mm bis 35 mm plug diameter
• 7mm, 8 mm or 9 mm plug thickness
• Circumferencial gluing of normal plugs by means of glue rising grooves

The Alomat AL310 series is the latest development of our proven knot plugging machines. Its speed and precision are unrivaled. With 66 % energy savings compared to the predecessing series, you can work twice as fast: the Alomat AL310L-A's cycle time of just 2.2 seconds speaks for itself! This machine can be used to plug either with real knot plugs or with normal plugs from batten, one after the other, only by choosing the according foot valve.

Alomat AL310L-A works with workpiece clamping by lowering the unit. The advantage of this method: The height of the work table is not changed; the operating height always remains constant, regardless of the workpiece thickness. This also allows problem-free processing of long workpieces with a workpiece thickness of up to 170 mm.

During each work cycle, the normal plugs are milled from batten, which is automatically fed. The real knot plugs are automatically fed from the plug container during each work cycle, in which approx. 1000 pieces of Ø 25 mm x 8 mm can be stored.

The plugging depth can either be 7 mm, 8 mm or 9 mm, with the workpiece clamping guaranteeing that the normal plug or real knot plug is pressed in without any protrusion.

Both the clamping stroke and the workpiece thickness compensation are performed from above. For this purpose, the processing slide (incl. drilling and milling unit, glue injection device and feed cylinders) is lowered.

The AL310L-A creates a tight fit of the normal plug by gluing the base and providing circumfrancial gluing to increases the mechanical load-bearing capacity and quality of the workpiece thanks to the enlarged gluing surface. This greatly increases the reliability of the patched areas compared to processes in which only the bottom of the plug is glued. The normal plug is pressed in up to the bottom of the drill hole and lies on the same level as the workpiece surface. This prevents the normal plug from being drawn into the drill hole when the glue diffuses into the workpiece. In addition, no glue pool is created and a volume of air between the normal plug and the base of the drill hole is avoided.

The precise injection of glue prevents an unwanted glue rim, so that the surface of the workpiece remains clean and can be processed immediately.

The glue rising groove depth is adjustable. This ensures that the gluing always withstands the upcoming stress on the workpiece and that your finished wood retains its high quality.