Hand Operated Notching Machine
A Manual Hand Operated Sheet Corner Notching Machine (commonly known as a Corner Notcher) is a precision workshop machine used to remove corners from sheet metal before folding or fabrication. It is widely used in sheet metal industries to prepare materials for making boxes, panels, electrical enclosures, trays, and other fabricated products.
Machine Overview
The machine operates using a manual lever mechanism that drives a sharp pair of cutting blades downward to remove a clean 90° corner section from sheet metal. Its compact design and simple operation make it ideal for fabrication workshops and small manufacturing units.
Technical Specifications (Typical)
| Feature | Standard Specification |
|---|---|
| Maximum Cutting Thickness | 0.1 mm – 1.5 mm (Mild Steel) |
| Maximum Notch Size | 150 × 150 mm (6″ × 6″) |
| Notching Angle | 90° Fixed |
| Ram Stroke | 20 mm – 25 mm |
| Table Size | Approx. 450 × 300 mm to 500 × 400 mm |
| Blade Material | High Carbon High Chromium (HCHCr) / D2 Tool Steel |
| Machine Weight | 75 kg – 125 kg |
| Operation Mode | Manual Hand Lever |
Key Features
- Heavy Duty Construction: Fabricated using cast iron or mild steel body for high strength and minimal vibration.
- Precision Cutting Blades: Hardened tool steel blades ensure accurate and clean corner cuts.
- Adjustable Gauges: Equipped with adjustable fences and measurement scales for repeated accurate cutting.
- High-Leverage Handle: Long lever handle reduces the physical force required to cut sheet metal.
- Stable Work Table: Large flat table provides strong support during operation.
Material Cutting Capacity
| Material | Maximum Thickness |
|---|---|
| Mild Steel | Up to 3.0 mm (heavy-duty models) |
| Stainless Steel | 1.2 mm – 1.5 mm |
| Aluminum / Copper | Up to 4.0 mm |
Common Applications
- Sheet metal fabrication workshops
- Electrical panel manufacturing
- Metal cabinet and enclosure production
- HVAC duct fabrication
- Industrial sheet metal processing
Safety Note
Operators should ensure that sheet metal thickness does not exceed the rated machine capacity. Exceeding the limit may damage the cutting blades or machine structure. Always wear protective gloves and keep hands clear of the cutting area during operation.
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