Drilling and Grooving Combined Machine for Balsa Wood and PET Foam

 Integrated Hole Punching & Slot Cutting Equipment for Wind Turbine Blade Core Production

• Max. workpiece size : 2500 mm (width) × 50 mm (thickness)
• Functions: Shallow grooving + perforation (drilling)
• Main Motor Speed: 0 – 3000 RPM, 12 KW
• Power Input： 28 KW, 380 V
• Target Materials:Balsa wood, PET foam (also suitable for PVC/PU foam)
• Application:This machine does two jobs in one pass: drilling holes and cutting shallow grooves on balsa wood and PET foam core materials. 

This machine does two jobs in one pass: drilling holes and cutting shallow grooves on balsa wood and PET foam core materials. Instead of running panels through a separate drill and then a groover, you load them once and the combined machine handles both operations. It’s designed for wind blade core preparation and composite sandwich panels – where you often need small holes for resin flow plus shallow channels (grooves) to help resin spread or to reduce weight.

The main motor runs at up to 3000 RPM (12KW), and the whole unit is compact: 4500 mm long, 1700 mm wide, 1500 mm high. Maximum panel size is 2500 mm × 50 mm (thickness). It’s built for shallow grooving and perforation, not deep structural cuts. Think of it as a space‑saving, time‑saving combo for core pre‑processing.

Machining effect display

• Two functions, one pass – Drills hole patterns and cuts shallow grooves at the same time. No need to move panels between different machines. Less handling, less floor space.

• Single main motor (12KW, 0–3000 RPM) – Drives both the drilling and grooving tooling. Simple, reliable, and easier to maintain than two separate systems.

• Compact footprint – 4500×1700×1500 mm. Fits neatly into an existing core production line without taking up much room.

• Handles standard panel widths – Max workpiece width 2500 mm, thickness up to 50 mm. Covers most balsa and foam core dimensions used in wind blades and industrial panels.

• Shallow groove focus – Designed for light surface channels (e.g., for resin distribution or crack prevention), not heavy‑duty slotting. Keeps cutting forces low and edge quality high.

• Adjustable hole spacing and groove depth – Parameters are controlled via HMI (touch screen). You can change both patterns quickly when switching product types.

1. Wind turbine blade core pre‑processing
   Before infusion, balsa and foam panels need both perforation holes (for vertical resin flow) and shallow grooves (to help resin spread horizontally or to accommodate shear webs). This machine does both in one setup.

2. Composite sandwich panel production
   For panels used in truck floors, marine decks, or railcar interiors – you often want a few grooves to reduce weight or to hold adhesive. Combined drilling/grooving saves a manufacturing step.

3. Balsa wood end‑grain core finishing
   Shallow grooves on the back side of balsa blocks can prevent cracking during bending. The drilling function adds infusion holes at the same time.

4. PET foam core lightweighting
   Foam cores sometimes get shallow channels to reduce overall weight without losing stiffness. The combined machine lets you add those channels while also drilling resin pathways.