4‑Row Servo Multi‑Spindle Drilling Machine for Balsa Wood & Foam Core

High‑Precision CNC Drilling Equipment for Wind Blade Core Materials

• Max. Workpiece Size (L × W × H) : 2500 mm × 1300 mm × 80 mm
• Hole Spacing Options:20×20 mm / 40×40 mm / 20×40 mm
• Hole Diameter Range: 1 – 4 mm
• Air Input:0.4 – 0.7 MPa
• Spindle Speed：3000 RPM × 8 motors
• Application: 4‑Row Servo Multi‑Spindle Drilling Machine is a compact, servo‑driven inline drilling system designed for perforating balsa wood and PET/PVC foam panels

4‑Row Servo Multi‑Spindle Drilling Machine is a compact, servo‑driven inline drilling system designed for perforating balsa wood and PET/PVC foam panels – the core materials used in wind turbine blades and composite sandwich structures. It has four rows of drill spindles (8 motors total, each at 3000 RPM) that work together to punch holes across the full panel width in one pass. The feeding length and drilling depth are controlled by a servo motor, and all parameters are set via a touch screen. Cycle time is about 1.5–2 minutes per panel.

Unlike larger 8‑row machines, this 4‑row version is built for medium‑volume production lines where floor space is tighter but you still need automated, consistent perforation for resin infusion. It handles the same hole patterns (20×20, 40×40, 20×40 mm) and hole diameters (1–4 mm) as its bigger counterpart.

Machining effect display

• Four rows of spindles (8 independent motors) – Each spindle runs at 3000 RPM. The four‑row layout gives you full coverage across the panel width without needing extra rows. A good balance between speed and machine size.

• Servo‑controlled feeding length and drilling depth – Punch depth and how far the panel feeds are adjusted digitally through the touch screen. No manual cranks or mechanical stops. Makes setup fast and repeatable.

• Adjustable hole spacing and diameter – Three common spacing options (20×20, 40×40, 20×40 mm) and hole sizes from 1 mm to 4 mm. Covers the typical infusion requirements for wind blade cores.

• Touch screen HMI – All parameters (speed, depth, spacing, hole size) are changed through an intuitive interface. Save different recipes for different panel types.

• Compact footprint – 4200 mm long × 1550 mm wide × 1700 mm high. Fits into smaller workshops or production lines where an 8‑row machine would be too long.

1. Wind turbine blade core perforation (medium volume)
   If you’re producing cores for blades but don’t need the extreme throughput of an 8‑row machine, this 4‑row version gives you the same hole quality with a smaller investment and footprint.

2. Composite sandwich panel production (flexible lines)
   Works well for job shops or factories that switch between different panel sizes and hole patterns. The servo control and touch screen make changeovers quick.

3. Balsa wood end‑grain core preparation
   Drills clean, uniform holes across the entire balsa block. The four rows ensure even spacing, which is critical for vertical resin penetration.

4. PET and PVC foam perforation
   The servo‑controlled depth prevents crushing soft foams. You get consistent hole walls without tearing or melting.