Plasma Cutting Tip Sizes: How to Choose the Right One
By MIG/TIG/Stick Welders & Plasma Cutters | USA Weld – HTP ... | Published: 2026-10-21
Category: Buying Guides
Learn how plasma cutting tip sizes affect cut quality and consumable life. Find out what 0.7mm tips are for and when to replace them.
Quick Answer
Choose a cutting tip size that matches your torch model and the material thickness you cut most. For Cebora CP-40 torches, a 0.7mm tip suits fine, precise cuts; thicker material needs a larger orifice.
Why Tip Size Matters
The orifice diameter in a plasma cutting tip controls the plasma stream width and energy density. A smaller orifice, like 0.7mm, produces a narrower, more concentrated arc—good for fine work on thin metal. A larger orifice allows more air flow and a wider cut, which can handle thicker material but may leave a rougher edge.
Using the wrong tip size can cause poor cut quality, excessive dross, or rapid wear. Always match the tip to your torch's design and the recommended amperage range.
Trade-offs: Precision vs. Speed
A 0.7mm tip gives you precision but not speed. If you are cutting thick plate, you will need a bigger tip to move faster and avoid overheating. Conversely, using a large tip on thin sheet metal can warp the material and waste consumables.
For hobbyists and light fabrication, a 0.7mm tip is a good all-rounder for thin gauge steel. For production work on heavy plate, step up to a larger size.
Common Questions About Plasma Cutting Tip Sizes
- What does the number on a plasma cutting tip mean?
- The number (e.g., 0.7mm) is the orifice diameter in millimeters. Smaller numbers produce a narrower arc for fine cuts; larger numbers are for thicker material.
- How do I know which tip size fits my torch?
- Check your torch manual or the part number on the torch head. Many manufacturers list compatible tip part numbers. For Cebora CP-40 torches, look for torch head P/N 1136 or P/N 1359. Always verify the torch head part number before ordering a replacement tip.
- When should I replace a plasma cutting tip?
- Replace the tip when you notice a wider cut, more dross, or a rough edge. Also replace it if the orifice appears enlarged or damaged. Regular inspection extends the life of other consumables. Keep spare tips on hand to avoid downtime.
Featured Product
- 0.7MM Cutting Tip f/Cebora® CP-40 Plasma Cutting Torches: This 0.7mm cutting tip fits Cebora CP-40 plasma torches with torch head P/N 1136 or P/N 1359. It ensures a proper fit and consistent cutting performance for those specific torch models, so you don't have to worry about compatibility issues.
0.7MM Cutting Tip f/Cebora® CP-40 Plasma Cutting Torches
