CNC plasma cutters are great for workers in any fabricator’s workshop as it delivers high quality, precision cuts and the operating costs are significantly low. However, buying a CNC plasma system is a considered decision and there are many factors that you must take into account before buying one.
- You must ensure that you are investing in a high-quality CNC plasma machine. This is a very important consideration, as buying a CNC plasma machine is a long-term investment. Escco only supply machines of the highest quality and all of our machines come with on-going technical suppport, for peace of mind.
Design of the Table
- You must first take into consideration the design of the table before you decide on the plasma that you want to buy. Every small factor can affect the table’s performance considerably.
- You must check the weight of the gantry. If it is too heavy, then it becomes very difficult to control the plasma torch with high speed and accuracy.
- You must also consider the machine’s roller hold-down feature in the case of gauge metal cutting, as the plasma dust from the cutting process may obstruct some parts. The plasma dust can mix with the oil creating a sludge which will eventually damage the machine parts.
Choice of Motor
- The choice of a servo motor is generally considered better than a stepper motor as the servo motor can move to infinite number of positions in its range of motion and it also provides feedback on its position to the operator.
- On the other hand, the stepper motor can cover only finite number of positions and does not have the capability of providing feedback to the operator about its position.
- Though servo motors are more expensive than stepper motors, the cost is offset by the precision, accuracy and assurance offered by servo motors.
- The software that comes along with the CNC plasma is undoubtedly the most important part of the system.
- The software is what allows you to design what you want to cut and also control the operation of the plasma torch.
- Usually, AutoCAD for the CAD part and EXG Code for the CAM portion are excellent for creating top-quality designs.
- The software that controls the plasma usually comes along with the CNC plasma table, but you must ensure that this is optimized for your table. The software we provide is very easy to use. If you are interested in seeing this in action, check out our software page, or contact us to book a demo to see our tables and software in action.
- There is a lot of smoke and dust that is released during plasma cutting. This needs to be considered when making a choice of the CNC plasma.
- If there is no proper ventilation, the smoke and dust can be pretty harmful to both the workers as well as the other machines in the workshop.
Two systems that can help to eliminate dust and smoke are:
- Downdraft System: This system features skirts around the plasma cutting table’s base along with a fan that draws out the dust and smoke via a filter. This is an effective way of ventilation.
- Water Table: This is another method of containing the smoke and dust generated during plasma cutting. The water table is basically a shallow table of water that is located under the cutting surface of the CNC plasma. This captures the dust and sparks as they fall while cutting. One needs to be careful as water may spill and splash on the bottom of the cutting table which causes rusting. Care must be taken to ensure that this does not happen or it would be even better to use a rust inhibitor to prevent rusting.
The choice of a CNC plasma system is a very important decision as it is involving a large capital outlay and is also a long-term investment. Also, the quality of your work highly depends on your choice of the CNC plasma that is optimum for the job at hand. The above factors will help you make an informed choice of the right plasma for your needs which will ultimately lead to increased productivity and cost savings.