Modern window and door manufacturing demands millimeter-level accuracy, and the CNC double-head cutting saw (500/550mm blade models) delivers exactly that. Here’s why it’s the backbone of aluminum/UPVC/PVC profile processing:
1. Core Capabilities
- Dual-angle precision: Cuts at -45°, 45°, 90° with ±5′ angle tolerance (e.g., LJZ2S-550×4600-CNC model).
- High-speed blades: Carbide-tipped saws (Φ450–550mm) spin at 2800–3850 rpm, reducing burrs for Ra12.5μm surface finish.
- Smart automation: CNC presets cut lengths (400–4200mm), minimizing manual measurement errors.
2. Key Applications
- Aluminum curtain walls: Handles profiles up to 230mm wide (Heavy-duty models).
- UPVC windows: Air-hydraulic damping cylinders (0.5–0.8MPa pressure) prevent thin-wall deformation.
- Mass production: Dual saw heads cut both ends simultaneously (Shiner Nisen 550 achieves 50% faster cycle times).
3. Operator Benefits
- Safety: Auto-lock clamps engage during power failures.
- Versatility: Swap blades for aluminum (Z=120 teeth) or PVC (Z=144 teeth) in minutes.
- Cost control: ±0.2mm repeat accuracy reduces material waste to <1.5%.
Example: A 380V/6.75kW machine (like LJZ2S-550×4200) cuts 20+ frames/hour with ±0.1mm flatness.
