
Structural Profile Cutting Band Saw G1-4550S
- Gantry Structure:
- Vibration-Dampening Double-Column Portal Frame
- Section Optimization:
- Engineered for Hollow Structural Sections (HSS)
- Speed Regulation:
- Variable Frequency Drive Inverter (15 - 80 m/min)
- Blade Guides:
- Carbide Guide Blocks with Backup Rollers
- Feed Control:
- Fine-Tuning Hydraulic Downfeed Flow Valve
- Clamping Vise:
- Hydraulic Full-Stroke Clamping Vise
Specifiche Tecniche
| Technical Parameter | Specification Detail |
|---|---|
| Cutting Capacity (Round) | Max. 450 mm (17.7") |
| Cutting Capacity (Square / H-Beam) | Max. 450 x 500 mm (17.7" x 19.7") |
| Blade Dimensions (W x T x L) | 34 x 1.1 x 4430 mm (Standard Industrial Size) |
| Blade Speed Range | 15 - 80 m/min (Stepless Variable VFD Inverter) |
| Main Drive Motor Power | 3.0 kW (4.0 HP) |
| Hydraulic System Motor Power | 0.75 kW (1.0 HP) |
| Blade Guide Construction | Carbide Guide Pads with Mechanical Backup Rollers |
| Downfeed Control System | Fine-Tuning Flow Regulation Valve with Hydraulic Downfeed |
| Machine Weight | 1,850 kg (4,078 lbs) |
| Footprint Dimensions | 2350 x 1750 x 1750 mm (L x W x H) |
Key Product Features
1. Optimized for Hollow Structural Sections (HSS)
Features a fine-tuning downfeed flow control valve that permits highly precise feed pressure adjustments. This prevents the blade from catching or stripping teeth when cutting thin-walled tubes, pipes, or structural angles.
2. High-Accuracy Carbide Guide System
Pre-tensioned carbide guides with mechanical backup rollers align and stabilize the 34 mm blade before entering and exiting the throat, preventing blade twisting and ensuring high cut squareness.
3. Space-Saving Gantry Frame Layout
The compact double-column portal design occupies a minimal footprint in the workshop, while providing the superior structural stiffness, vibration damping, and straight-line downfeed of a large gantry saw.
4. Direct Helical Gear Reducer Drive
Eliminates drive belt slippage completely. Direct transmission via a direct-shaft helical gearbox delivers maximum mechanical efficiency, providing constant torque under extreme loads.
5. Stepless VFD Inverter Speed Control
A robust VFD variable frequency inverter regulates blade speed from 15 to 80 m/min, controlled directly from the touchscreen panel to optimize cutting speed for varying alloy steel grades.
6. Full-Stroke Hydraulic Clamping Vise
The workpiece is clamped securely by a full-stroke hydraulic vise. The full-stroke design allows fast and rigid clamping of various profile widths without needing manual adjustment blocks.

Industrial Applications
The G1-4550S is a compact, high-efficiency solution for structural profile and tube cutting:
Architectural & Framing Fabricators
Optimized for cutting hollow structural sections (HSS), handrail tubing, structural channels, and light steel angles used in architectural framing and decorative weldments.
Mechanical & Utility Contractors
Excellent for clean, square cutting of large electrical conduits, industrial pipes, framing profiles, and utility shafts before assembly.
Mid-Sized Fabrication Shops
Provides a space-saving, rigid double-column sawing solution for processing structural steel and general metal profiles to precise lengths.
Frequently Asked Questions
1. How does the downfeed regulator prevent tooth stripping on thin-walled sections?
Thin-walled materials like structural tubing have a very small contact area when the blade enters the wall, then high resistance as the blade cuts the sides, and finally very low resistance. The fine-tuning downfeed flow regulator allows the operator to set a slow, constant feed speed, preventing the blade from dropping too fast and stripping teeth.
2. Why choose a double-column gantry saw over a pivot saw of similar capacity?
Pivot (scissor) saws pivot from a single point, which can cause blade twist and uneven cut faces on wide hollow profiles. The G1-4550S's double-column portal frame descends vertically, keeping the blade perfectly level, reducing vibration, and yielding square cuts.
3. What is the cutting capacity of the G1-4550S?
At 90° (straight cuts), the maximum capacity is 450 mm round or 450 x 500 mm square/rectangular. It is specifically optimized for hollow structural sections and medium-sized steel shapes.
4. What are the packaging, delivery lead times, and warranty parameters?
Standard models have a manufacturing lead time of 20 to 30 days. The saw is covered by a 1-year B2B industrial warranty and is packed in seaworthy export-compliant framing with comprehensive manuals and remote commissioning support.