Levelling machines, sometimes referred to as straightening machines, are specially designed tools that play a pivotal role in mitigating the internal stresses of materials. These state-of-the-art machines allow for the seamless flattening and rectification of materials and finished goods. But with an array of levelling machines in the market, picking the best one that caters to your needs can be a complex task. Here, we delve into the four major factors to contemplate for an informed selection:
1. Grasping the Material Attributes for Levelling
The understanding of the material attributes that require levelling, such as whether it’s a sheet or coil, its type, hardness, toughness, yield strength, and its maximum width and thickness, is paramount. These considerations are crucial due to the significant investment required for these machines. It’s wise to opt for machines with enough leeway for levelling diverse materials, thereby catering to future production needs.
2. Deciphering the Pressing Process Requirements: Precision and Speed
The stamping process requirements greatly influence the levelling precision. Not all processes demand a completely flat output post-levelling; some necessitate a slight upturn or downturn for facilitating the subsequent mould production processes. Thus, understanding the necessary precision and speed for the levelling machine becomes critical.
3. Comprehending the Fundamentals of Levelling Machines: Principles, Types, and Variations
A thorough understanding of levelling machines’ principles and types can steer you towards the right selection. Essentially, all levelling machines work on the same principle – using the misalignment of levelling rollers to correct materials. The diameter of these rollers directly influences their corrective ability – smaller diameter rollers level thinner materials. Moreover, the number of levelling rollers impacts the levelling precision, with a higher count translating to better accuracy.
4. Determining the Appropriate Levelling Machine Model
Once you have a grasp on the material properties, process requirements, and the suitable machine model thickness, the decision for the specific machine model becomes clearer. However, remember that the width of your chosen levelling machine should be 20mm less than the actual levelling width to account for material blocking wheels. If the actual width matches the machine model, consider a larger model.
Take for example, the precision thin plate levelling machine GJ-200. Its levelling width is around 180mm, falling short of the 200mm mark. Also, precision levelling machines come with optional features such as frequency converters (for enhanced levelling stability), flip-style machine heads (which aid in cleaning levelling rollers, hence improving precision and extending machine life), upgrades in feeding and discharging devices, photoelectric sensing devices (which prevent material scratching), and rubber coating for levelling rollers, to name a few.
In conclusion, a comprehensive understanding of the material properties, the pressing process requirements, and the various types and features of levelling machines is crucial in making an informed purchase decision. Armed with these insights, you are now better equipped to navigate the world of levelling machines.