450mm CNC Double Head Internal Swing Precision Cutting Saw (45°/90°)

Product SummaryThe 450mm CNC Double Head Internal Swing Precision Cutting Saw is a high-end, CNC-controlled profile cutting machine engineered for aluminum, thermal-break aluminum, and UPVC/PVC window and door production. Equipped with two synchronized Ø450mm TCT carbide blades and inward-swing (internal swing) saw heads, it performs simultaneous two-end mitre cutting at 45° and 90° with repeat accuracy up to ±0.1mm. CNC digital positioning, pneumatic auto-feed and 4-point clamping ensure fast, consistent batch production of window frames, sashes, mullions and transoms.

Machining Capabilities• Two-end simultaneous cutting of aluminum / UPVC window frames and sashes.

• 45° mitre cutting for welded corners (square, rectangle, bay windows).

• 90° square cutting for mullions, transoms and fixed frames.

• Step / V-shaped end cutting with angle fixtures.

• Compatible with common European & North American profile systems.

• Single-head or dual-head operation modes (heads can work individually or together).Application Scenarios• Aluminum, thermal-break aluminum and UPVC/PVC window & door fabrication workshops.

• Curtain wall and industrial aluminum profile processing.

• Profile batch cutting before welding or assembly.

• Retrofit or upgrade of existing window-door production lines.

Key Features1. Internal Swing (Inward Tilt) Head Design — Saw heads swing inward for 45°/90° indexing; space-saving, stable and vibration-free operation.

2. Simultaneous Two-End Cutting — Both heads cut in one pass, improving throughput by up to 50% vs. single-head saws; square, burr-free ends.

3. CNC Digital Positioning — Movable head positioned via CNC servo / digital ruler for fast, accurate cutting-length setup (450–3700mm).

4. Optimized for Aluminum & PVC — Blade speed and tooth count tuned for aluminum, thermal-break and UPVC profiles; clean edges, no melting.

5. 45° / 90° Precision Mitre — Rotary worktable indexes -45° / 90° / +45° with quick-pin stops; intermediate angles manually adjustable.

6. Pneumatic Auto-Feed with Damping — Adjustable cutting speed, smooth chatter-free cutting, longer blade life.

7. Horizontal + Vertical Pneumatic Clamping — 4 cylinders lock profiles firmly without thin-wall deformation or shifting.

8. High Repeat Accuracy — Repeat positioning ≤ ±0.1mm; angle tolerance ±5′; cut-surface flatness ≤ 0.10mm.

 FAQ:  What is the difference between internal swing and external swing?

A: Internal swing (inward swing) heads tilt toward the machine center, saving floor space and improving cutting stability. External swing heads tilt outward. Internal swing is preferred for high-precision, space-conscious workshops.

Q: Can this saw cut both aluminum and PVC profiles?

A: Yes. Primarily designed for aluminum and thermal-break aluminum, it also handles UPVC/PVC and composite profiles. Blade type and spray cooling can be selected per material.

Q: What cutting angles are supported?

A: Standard angles are 45° and 90° (-45° / 90° / +45°). Intermediate angles can be set manually using adjustable stoppers.

Q: How is the cutting length adjusted?

A: The left head is fixed; the right head slides along precision linear guide rails and is positioned by CNC servo / digital display for fast, accurate setup.

Q: What power and air supply are required?

A: Standard 380V/50Hz/3-phase; 220V, 415V and 60Hz versions available. Air pressure 0.5–0.8 MPa; air consumption approx. 120 L/min.

Q: What is the warranty and lead time?

A: 12 months warranty (consumables excluded), lifetime technical support. Standard lead time 15–30 working days.