The Aluminum Profile Gauge Table with Finished Sawing (often simply called the Finished Sawing Line) is the final mechanical stage of the extrusion process. After profiles have been cooled and straightened (stretched), they are moved to this station to be cut into the precise commercial lengths required by the end customer.
For a 10-inch extrusion line, this area is a high-traffic zone that requires heavy-duty handling to manage the weight of large industrial profiles.
This system performs three critical tasks in rapid succession:
Precision Cutting: A high-speed circular saw (equipped with carbide-tipped blades) cuts the long “master” profiles into finished lengths (e.g., 5.8m for shipping containers or custom lengths for architectural projects).
Length Gauging: A “gauge head” or “stopper” moves along a track to a precise position, ensuring every cut piece is identical within a fraction of a millimeter.
Profile Squaring: The saw ensures the ends of the profiles are perfectly square , which is essential for assembly and welding.
Scrap Management: It automatically separates the “front end” and “butt end” scrap (the parts touched by the puller or stretcher jaws) from the usable product.
These systems vary based on the level of automation and the diameter of the saw blade required.
A. Manual Gauge Tables
The operator manually slides a mechanical stopper along a ruler and locks it in place.
Best for: Small batches or very infrequent length changes.
B. CNC Digital Gauge Tables (Mainstream)
The operator enters the desired length into a touch screen (HMI). A servo-motor moves the gauge head to the exact position instantly.
Best for: 10-inch industrial lines where accuracy and speed are paramount.
C. Automatic Multi-Strand Sawing Lines
Designed to cut an entire “batch” of profiles (the full width of the cooling bed) in a single pass.
Best for: High-volume architectural and automotive production.
| Feature | CNC Automatic Sawing Line | Manual Sawing Station |
| Advantages | High Precision: Accuracy within $\pm$ 0.5mm. Labor Saving: One operator can manage the entire outfeed. | Low Cost: Minimal initial investment. Simplicity: No complex electronics to fail. |
| Disadvantages | High Cost: Requires expensive servo systems and PLC integration. | Human Error: High risk of “short cuts” or inconsistent lengths. Safety: Higher risk of injury during manual handling. |
| Speed | Fast: Instant length adjustment. | Slow: Manual measurement takes 1–2 minutes per change. |
When presenting these machines to international clients, keep these “Director-level” specifications in mind:
Blade Diameter: For a 10-inch line, you typically need a saw blade diameter of 600mm to 800mm. Smaller blades won’t have the “depth of cut” to handle thick industrial beams or wide heat sinks.
Under-Table vs. Over-Table Sawing: * Under-table (Mainstream): The saw blade rises from beneath the table. This is safer and allows for better chip collection.
Over-table: The saw drops from above. Generally reserved for extremely large, heavy-duty structural beams.
Chip Collection (Swarf): High-speed sawing of 10-inch profiles creates a massive amount of aluminum dust and chips. A high-power vacuum extraction system is mandatory to prevent air pollution and fire hazards in the factory.
Lubrication: Most modern models use a “Minimum Quantity Lubrication” (MQL) system that sprays a tiny mist of vegetable-based oil on the blade to ensure a mirror-like finish on the cut end without soaking the profile in oil.
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