Double Heads Big Hole
Drilling Machine
Purpose-built for cooktop and appliance glass — dual spindles drilling Φ50–230mm holes through 6–15mm glass with oil buffer technology, PLC control, and one-key type changeover.
How It Works
Five stages from raw glass to precision-drilled cooktop output — dual spindles, oil buffer, continuous cycle.
Why This Big Hole Drilling Machine
Six features that make it the go-to solution for cooktop and appliance glass drilling.
Dual-Head Simultaneous Drilling
Two independent drilling heads each with paired upper/lower spindles drill two large-diameter holes at the same time — doubling throughput vs. single-head systems. Each head can also operate independently for maximum flexibility.
Φ50–Φ230mm Big Hole Capability
Purpose-built for large-diameter holes that standard drilling machines cannot handle. Diamond core drill bits penetrate 6–15mm glass at Φ50–Φ230mm — the exact range needed for cooktop burners, control knobs, ventilation, and drainage.
Oil Buffer Technology
Proprietary oil buffer system on the Z-axis delivers smooth, vibration-free drilling penetration. Eliminates glass chipping and micro-fractures around large-diameter holes — critical for cooktop glass where thermal stress resistance matters.
One-Key Type Changeover
Switch between cooktop models in under 30 seconds with one-key preset recall. Store dozens of product configurations in PLC memory — hole positions, diameters, drilling speeds, and depths all recalled instantly. No manual reprogramming needed.
PLC + Touch Screen Control
Full PLC control with 7-inch touchscreen HMI — enter hole diameter, position, and depth directly. The system automatically calculates drilling parameters. Supports foot-switch, single-cycle, and continuous-cycle operation modes for any production rhythm.
24-Hour Continuous Operation
Heavy-duty cast iron base, stress-relieved frame, rigid anti-corrosive spindles, and precision linear guides enable non-stop 24-hour production. Maintenance-free spindle design eliminates downtime. Built for the demands of high-volume cooktop manufacturing.
Dual-Head = 2× Cooktop Throughput
Two independent drilling heads each with paired upper/lower spindles drill two Φ50–230mm holes simultaneously — cutting cooktop cycle time in half vs. single-head systems.
Technical Specs
Every parameter engineered for large-diameter cooktop and appliance glass drilling.
How It Compares
Double Head Big Hole vs. single-head drilling vs. CNC vertical drilling.
Hanwin Double Head Big Hole Drilling Machine dominates Big Hole Range (98) and Dual-Head Speed (92) — the fastest, most capable solution for cooktop and appliance glass.
Where It Excels
From cooktop hobs to automotive glass — one machine, every big-hole drilling need.
Cooktop & Hob Glass
Burner & Control Holes
Induction, ceramic, and gas cooktop glass requires large-diameter holes (Φ80–Φ230mm) for burners, control knobs, ventilation, and drainage. The Double Heads Big Hole Drilling Machine is purpose-built for this application — drilling 2–4 holes per cooktop panel in a single cycle with the precision that cooktop OEMs demand.
Choose Your Configuration
Three tiers from standard 2-hole to enterprise 4-hole dual continuous cycle.
G-HD-2 Standard
2 Holes, PLC, Φ50–150mmG-HD-2 Professional
2 Holes, Servo, Φ50–230mmG-HD-4 Enterprise
4 Holes, Dual Cycle, Φ50–230mmKeep It Drilling
Five essential maintenance practices to maximize drill bit life and cooking accuracy.
Inspect all diamond core drill bits for wear, glazing, or diameter reduction. Dress or replace bits as needed — dull bits increase drilling force and risk glass cracking. Verify water cooling flow through all spindles. Clean water tank filters and check pump pressure. Inspect pneumatic clamping pressure.
Check oil buffer fluid levels on all Z-axis units — top up or replace as needed. Verify smooth buffer operation by running a test cycle at slow speed. Check servo motor performance and backlash on X/Z axes. Lubricate all linear guide rails and ball screws with precision machine oil.
Verify positioning accuracy at Φ50, Φ100, Φ150, and Φ230mm test positions using test glass. If accuracy drifts beyond ±0.30mm, recalibrate X/Z servo systems. Check upper/lower spindle concentricity. Update PLC offset values. Backup all product presets and programs.
Inspect all 4 spindle bearings for play, noise, or vibration at operating speed. Check spindle alignment and runout using a precision dial indicator. Verify motor power output. Inspect belt tension (if belt-driven). Check all electrical connections and Schneider components. Replace spindle coolant filters.
Perform complete machine calibration using precision measurement tools. Verify all axes, spindle concentricity, pneumatic pressure, water cooling flow, laser positioning (if equipped), and safety systems. Replace drill bits, wear components, and oil buffer fluid. Full CE compliance check. Structural integrity inspection of cast iron base.
Common Questions
Everything you need to know about the Double Heads Big Hole Drilling Machine.
The maximum drill hole diameter is Φ230mm — large enough for the biggest cooktop burner cutouts. The machine handles holes from Φ50mm (control knobs, small connectors) to Φ230mm (large burners, ventilation) with ±0.30mm positioning accuracy.
Yes — the dual-head design features two independent drilling heads, each with paired upper and lower spindles. Both heads can drill simultaneously, processing two large-diameter holes in a single cycle. Each head can also operate independently for maximum flexibility.
The standard configuration handles 6–15mm glass — the range used for cooktop, appliance, and decorative glass. The G-HD-4 Enterprise model extends to 4–20mm for specialized applications. The pneumatic clamping system adjusts automatically to hold glass securely across the full thickness range.
One-key type changeover switches between stored product presets in under 30 seconds. The PLC stores dozens of configurations — hole positions, diameters, drilling speeds, and depths — all recalled instantly via the touchscreen. No manual reprogramming needed between models.
A PLC (Programmable Logic Controller) with 7-inch touchscreen HMI controls all operations. Enter hole diameter, position, and depth directly on screen. Select from three modes: foot switch (manual trigger), single cycle (one pair of holes), or continuous cycle (automated production). Oil buffer technology ensures smooth, vibration-free drilling.
The G-HD-2 has 2 drilling heads (1 pair upper/lower each) — drilling 2 holes simultaneously, ideal for standard cooktop production. The G-HD-4 has 4 drilling heads (2 pairs) — drilling 4 holes in dual continuous cycle mode, with extended glass range (4–20mm), larger processing area (1000×600mm), and laser positioning standard. The G-HD-4 is designed for high-volume cooktop OEMs.
The standard machine drills round holes only using diamond core drill bits. For irregular shapes (slots, cutouts, rectangular openings), consider our CNC Glass Working Center or CNC Laser Drilling Machine. The Big Hole Drilling Machine excels at what it does best — fast, precise, large-diameter round holes for cooktop and appliance production.
Get a Quote
Tell us about your cooktop and appliance drilling needs and we'll recommend the right configuration.
Contact Information
Pre-configured for Big Hole Drilling
Your enquiry is pre-tagged for our Double Heads Big Hole Drilling Machine. Include your cooktop/appliance glass types, thickness, hole diameters (Φ50–230mm), quantities per panel, and daily volume for a faster response.
Big Holes. Dual Spindles.
Φ50–230mm large-diameter drilling with dual-head simultaneous operation, oil buffer technology, and one-key type changeover — the purpose-built solution for cooktop and appliance glass.