Choosing a proper sheet metal laser cutting machine is crucial for customers to ensure cutting precision, efficiency and cost-effectiveness during metalworking. With numerous options available in the market, it’s essential to know what to look for. Here are 10 key considerations to keep in mind when you selecting a sheet metal laser cutting machine.
1. Laser Power
The power of laser is one of the most paramount factors to consider. Laser power, measured in watts, determines the thickness of materials that can be cut and the speed at which cutting can be performed. Generally speaking, the higher power can cut through thicker materials more quickly but tend to be more expensive. For instance, a 1kW laser might be suitable for cutting thin sheets, while 6kW would be necessary for the thicker materials.
2. Cutting Speed
Cutting speed has a direct impact on your productivity. A faster cutting speed means more parts can be produced in a given time. However, the optimal speed depends on the type of materials being cut and thickness. Manufacturers often provide cutting speed charts that can help you choose the right machine based on your specific needs. Here is our comparison chart for your reference.
Comparison Table of Different Laser Powers Between Sheet Thickness and Cutting Speed in SENFENG
| Laser power | Max thickness of sheet | Max cutting speed |
| 1.5kW | 12mm | 23-30m/min (1mm thick sheet) |
| 3kW | 16mm | 30-45m/min (1mm thick sheet) |
| 6kW | 20mm | 45-55m/min (1mm thick sheet) |
| 12kW | 40mm | 15-18m/min (6mm thick sheet) |
| 20kW | 60mm | 23-25m/min (6mm thick sheet) |
| 30kW | 80mm | 23-30m/min (6mm thick sheet) |
| 60kW | 100mm | 26-30m/min (8mm thick sheet) |
3. Cutting Precision and Accuracy
Precision and accuracy are also of great concern, especially for industries requiring intricate designs and tight tolerances. The quality of laser beam and the stability of the machine affect the precision of cuts. Look for machines with high positioning & repositioning accuracy, typically in the range of ±0.03mm. In SENFENG, our machines are usually at the repositioning accuracy of ±0.02mm.
4.Type of Laser Generator
There are several types of laser generator, including CO2, optical fiber and diode lasers. Each has its own advantages and applications:
CO2 Lasers: Good for cutting non-metal materials and thicker metals.
Optical Fiber Lasers: More energy-efficient, faster and ideal for cutting thin, medium and thick metals.
Diode Lasers: Often used for engraving and marking rather than cutting.
Remember to choose the laser generator that best fits your materials and work requirements, instead of pursuing for the more and more high power.
5. Automation and Software Integration
In general, modern laser cutting machines come standard with various levels of automation and software integration. Automation can significantly increase productivity by reducing manual handling and setup time. Look for features such as automated loading and unloading, material handling system and advanced nesting software that maximizes material usage and minimizes waste.
6. Cost of Ownership
The initial purchase price is just one part of the overall costs. Need to consider the total cost of ownership, including maintenance, consumables, power consumption and potential downtime. Fiber laser generator, for example, tends to have lower operating costs compared to CO2 laser generator due to its higher energy efficiency and lower maintenance requirements.
7. Material Compatibility
Ensure the machine is compatible with the types of materials you intend to cut. Different laser generators interact differently with various materials. For instance, fiber laser generator is excellent for cutting metals like steel, aluminum and copper, while CO2 is better for cutting non-metals such as wood, acrylic and plastics.
8. Support and Service
As everyone knows, reliable technical support and intimate service are crucial for minimizing downtime and ensuring smooth operation. Choose a manufacturer or supplier known for excellent customer service, comprehensive training and prompt technical support. Check for available warranties and the ease of getting replacement parts.
9. Space and Requirements for Installation
Take into account of the space available in your facility for the new machine. Laser cutting machines vary in size, and you need to ensure there is enough room for early installation, operation and later maintenance. Some machines require special installation conditions, such as proper ventilation and stable foundations.
10. Environmental and Safety Factors
Laser cutting machines should comply with environmental regulations and safety standards. Give priority to machines equipped with proper exhaust system to handle fumes and dust, and ensure that safety features such as protective enclosures and interlocks are in place. This is particularly important if you are cutting materials that produce hazardous fumes.
Final Conclusion
Selecting the right sheet metal laser cutting machine involves a careful assessment of various factors, including laser power, cutting speed, precision and material compatibility. By considering these 10 key aspects, you can make an informed decision that will enhance your manufacturing capabilities & productivity, and reduce operating costs. Investing in a high-quality laser cutting machine tailored to your specific needs will ensure long-term success and efficiency in your operations. In addition to standard machines, SENFENG may also accept the customization of laser cutting machines at different laser powers, working areas and configurations, in order to further upgrade metalworking in all walks of life.
