Plasma Cutting vs Waterjet: Which Cutting Method Is Best for Your Project?

Choosing the right cutting method can make a significant difference in the quality, cost, and efficiency of a fabricated part. Warping, excessive edge cleanup, thermal distortion, or material damage can add unnecessary time and expense to a project.

At Hatfield Metal Fabrication, Inc., we are proud to be an area leader in the latest plasma and waterjet cutting technologies, offering advanced capabilities to match the cutting process to the specific requirements of each project.

Plasma cutting and waterjet cutting each have distinct advantages. Plasma provides fast, powerful cutting for a wide range of conductive metals, while waterjet delivers precision cutting without introducing heat into the material. The best process depends on the material, thickness, tolerances, edge quality, production requirements, and overall project objectives.

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Advanced Plasma Cutting Technology

Plasma cutting is an exceptionally effective solution for many metal fabrication applications. At Hatfield Metal Fabrication, Inc., our advanced plasma cutting capabilities allow us to efficiently process metal plate and components while maintaining the quality and consistency our customers require.

How Plasma Cutting Works

Plasma cutting uses an electric arc and compressed gas to create an extremely high-temperature plasma stream. The plasma melts the metal while the gas removes the molten material from the cut path.

Because plasma cutting relies on electrical conductivity, it is ideally suited for materials including:

• Carbon steel

• Stainless steel

• Aluminum

• Copper

• Brass

• Other conductive alloys

Plasma is particularly effective for structural components, brackets, base plates, equipment parts, weldments, and general fabrication. It is also an excellent choice when production speed and cost efficiency are important considerations.

One of the primary advantages of today's advanced plasma technology is its ability to deliver fast, efficient cuts while maintaining excellent consistency across production runs.

Understanding the Heat Factor

Because plasma is a thermal cutting process, it creates a heat-affected zone (HAZ) around the cut. Depending on the material, thickness, and application, heat can potentially cause discoloration, changes in material properties, or distortion.

For many fabrication applications, this is easily accommodated within the overall manufacturing process. However, when a project requires extremely clean edges, tight tolerances, minimal thermal impact, or protection of heat-sensitive material properties, another cutting technology may be more appropriate.

That is where Hatfield's waterjet capabilities provide an important advantage.

Precision Waterjet Cutting Technology

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Waterjet cutting offers an entirely different approach to material processing. Hatfield Metal Fabrication, Inc. utilizes advanced waterjet technology for applications where precision, versatility, and the elimination of heat-related issues are critical.

How Waterjet Cutting Works

Waterjet cutting uses an extremely high-pressure stream of water. When cutting hard materials, an abrasive such as garnet is added to the water stream, allowing the system to cut through metal and a wide variety of other materials.

The major advantage is that waterjet is a cold-cutting process.

Because virtually no heat is introduced into the workpiece, waterjet cutting minimizes the risk of thermal distortion, heat-affected zones, and changes to the material surrounding the cut.

Waterjet is an excellent choice when a project requires:

• Tight tolerances

• Precision profiles

• Smooth, clean edges

• Complex internal features

• Minimal secondary finishing

• No thermal distortion

• Cutting of heat-sensitive materials

• Cutting of nonmetallic materials

Its versatility makes waterjet technology particularly valuable for precision components and applications involving metals, composites, plastics, rubber, stone, glass, and other specialized materials.

Plasma vs. Waterjet: Which Is Right for Your Project?

There isn't one cutting technology that is best for every application. The advantage of working with an experienced fabrication partner is having access to the technology and expertise needed to select the right process.

When Plasma Cutting Is the Right Choice

Plasma cutting is often the ideal solution when speed, productivity, and cost efficiency are priorities.

It is particularly effective when:

• The material is electrically conductive

• The project involves metal plate or components

• High production speed is important

• Some secondary finishing is acceptable

• The components will be welded, ground, painted, or assembled

• Thermal effects are acceptable for the application

For structural components, equipment parts, brackets, weldments, and many general fabrication applications, advanced plasma technology can provide an outstanding combination of speed, quality, and value.

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When Waterjet Cutting Is the Better Choice

Waterjet cutting becomes particularly valuable when precision, edge quality, and eliminating heat-related effects are critical.

Choose waterjet when:

• Heat cannot be introduced into the material

• Tight dimensional requirements are important

• The component requires a clean finished edge

• The design contains intricate details or small openings

• Minimal secondary finishing is desired

• The material is nonconductive

• Multiple types of materials need to be cut

Waterjet technology allows Hatfield Metal Fabrication, Inc. to cut materials that would not be suitable for plasma while maintaining the dimensional accuracy and edge quality required for demanding applications.

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The Advantage of Having Both Technologies

The real advantage isn't simply having a plasma cutter or a waterjet. It is having access to both technologies and knowing which one is right for the job.

As an area leader in advanced metal fabrication technology, Hatfield Metal Fabrication, Inc. combines state-of-the-art plasma and waterjet cutting capabilities with decades of fabrication experience to help customers select the most efficient and cost-effective manufacturing solution.

Our team considers the material, thickness, geometry, tolerances, edge requirements, production volume, finishing requirements, and budget before determining the most appropriate cutting method.

Plasma or Waterjet? Hatfield Has the Technology to Do Both.

Choose plasma when speed, productivity, and cost-effective metal cutting are the priority.

Choose waterjet when precision, clean edges, material versatility, and cold cutting are essential.

At Hatfield Metal Fabrication, Inc., customers don't have to choose a fabricator based on a single cutting technology. We offer the latest technology in both plasma and waterjet cutting, backed by the experience and expertise to put each process to work where it performs best.

One fabrication partner. Advanced cutting technology. The right process for every project.