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Strippit LVD Axel 3015
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Prima Syncrono 1530HS$279,900 See Details >
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Mitsubishi ML3015 LVPS CNC Laser
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Used CNC Laser Cutter
Are you looking for a Used laser cutter, used CNC laser machine at a fair price? We can help. Every CNC laser ( Also known as laser cutting equipment) at CNCMachines.net has been thoroughly inspected and can offer you the benefits of CNC laser technology without the expense of buying new. We specialize in providing an easy way for machining companies to find a CNC laser that meets their specifications and budget.
In this guide, we’ll help you evaluate different types of laser cutting methods and provide some guidelines for buying a used CNC laser that will serve you well for many years.
Types and Techniques of CNC Laser Cutting
CNC laser technology has evolved through the years and become a powerful platform for metal cutting as well as other kinds of raw material cutting. When you are shopping for a used CNC laser, you’ll find three main types available; gas laser cutting, crystal laser cutting, and fiber laser cutting machines.
Gas CNC Laser Cutting
In gas laser cutting, a gas like oxygen, carbon dioxide or nitrogen is used to cut material. For cutting mild and carbon steels, it’s common to use an Oxygen laser cutting machine. CO2 lasers are used for industrial cutting of many materials from titanium and stainless steel to mild steel, aluminum, plastic, wood, and paper.
Crystal CNC Laser Cutting
Crystal laser cutting (commonly referred to as neodymium (Nd) or yttrium-aluminum-garnet (Nd: YAG)), is used for boring where very high power is needed, such as with ceramics or scribing metals.
Fiber CNC Laser Cutting
This type of technology uses a solid grain medium for cutting instead of a gas or liquid. In a fiber CNC laser machine, the “seed laser” beam is amplified within a glass fiber for an extremely small and powerful cutting area. It’s excellent for cutting reflective materials or making very complex, intricate parts.
Inspecting a CNC Laser Cutting Machine
We recommend that anyone considering the purchase of a used CNC laser goes on-site to inspect the equipment. It’s important to talk with the seller, collect documentation and run the machine. A great way to gauge the quality of a CNC laser is by measuring the quality of the cut it produces on a workpiece. You can select a test job based on the machine’s capability or the specific type of material you need for this machine. You’ll want to make sure you have access to quality inspection tools before you arrange your visit. So, what should you pay attention to when checking laser cutting quality? See below.
Standards for Checking Laser Cut Quality
- Roughness: Since laser cutting forms vertical lines and the depth of the line determines the roughness of the cutting service, the lighter the line, the smoother the cut section.
- Perpendicularity: If the sheetmetal is more than 10mm thick, the vertical degree of the cutting edge is important. The laser beam diverges when far away from focus so the cutting width changes from top to bottom. The more vertical the edge, the higher the cutting quality.
- Cutting width: The cutting width determines the minimum inner diameter. As plate thickness increases, so will cutting width. For highest precision, the working area of the workpiece in the laser cutter should be constant no matter the width of the incision.
- Burr: Check for burrs. The more burr, the lower the quality of the cut and more secondary work that will be required.
- Lines: For thick plates at high speed, molten metal can be sprayed out at the end of the laser beam causing curved lines to form at the cutting edge. Make sure you are happy with the feed rate needed to eliminate forming of the line.
- Material Deposited: Look for material that could be deposited on the surface near the incisions.
- Corrosion: Check for sag and corrosion on the surface of the cutting edge.
- Thermal zone: The thermal zone is the depth of the workpiece cut where the heat from the laser has caused internal structural changes.
- Deformation: Laser cutting can cause deformation of a part due to the rapid heating as the cutting occurs. Check that the laser cutter has power control settings that can reduce the heat of parts for parts where outlines and connections are close together.
Advantages of Laser
When you buy a CNC laser for metal cutting (instead of using more conventional cutting methods), you gain many advantages. CNC laser cutting consumes less power and operates at a quicker rate with more precise cutting abilities. The focused narrow beam can move along the lines specified in the CNC program just as easily as a pencil draws on paper.
With CNC laser cutting equipment you can:
- Control the beam intensity, length and heat output
- Use an extremely low level of power, typically around 10 kw as compared with 50Kw used by other processes
- Cut a wide range of materials
- Reduce damage to areas around the cut since laser cutting is non-contact
- Reduce maintenance costs since parts are relatively inexpensive
- Make very precise cuts with smooth finishes
- Switch quickly between setups
Because of the advantages of laser, CNC laser equipment is used in a wide range of industries. These include the automotive industry, aerospace industry, semiconductor industry, the electronics industry, and the medical sector. Today’s CNC laser equipment makes parts faster, more precise and smaller than ever before. When you are talking with a seller about a particular used CNC laser machine, find out precisely what materials, industry, as well as part types he has made on this machine. If it’s similar to your target customer and parts base, you may have a great fit!
We are a trusted source for used CNC laser cutting equipment and consistently take in CNC laser trade-ins. We have many used CNC lasers in stock. We welcome you to call or visit and inspect one of our used CNC laser machines. Contact us, and we’ll help you find the best laser for your business.