The M7 is the more versatile all-around MOPA option, with a very wide pulse-width range that gives you extensive control over how the laser interacts with the material. It is an excellent choice for deep engraving, color marking, black marking, coating removal, surface finishing, anodized aluminum, plastics, and general production marking.
The M8 configuration is built for more specialized precision and depth-controlled work. It combines JPT's M8 source — optimized for higher peak power and improved beam quality — with the G3 PRO 2.5D galvo system and EZCAD3, giving the machine controlled Z-axis depth processing for detailed reliefs, cavities, recessed features, multi-level engraving and and glass drilling.
The M8 is not simply a more powerful version of the M7. The two systems are optimized differently: choose the M7 for maximum MOPA versatility, or the M8 when your work requires precision material removal and true 2.5D depth control.
What 100W Changes in Real Production
Moving to 100W gives you significantly more average power for material removal than lower-powered MOPA systems.
For deep engraving, that means more material can be removed per pass and production times can be reduced, particularly on stainless steel, carbon steel, tool steel, brass, aluminum, titanium, and other metals.
Both the M7 and M8 retain the adjustable pulse width and frequency control that defines MOPA technology, allowing you to tune the interaction between the laser and the material instead of relying on power alone.
At 100W, this machine is well suited for demanding production applications including:
- Deep metal engraving
- Serial numbers, logos, identification and industrial traceability
- Stainless steel and titanium color marking
- Black marking
- Coating and anodized-layer removal
-
Surface texturing and finishingJewelry, knife and tool engraving
- Detailed graphics and fine text
- Repeated production marking
Where the two configurations begin to separate is how much process flexibility versus depth control your application requires.
The Two 100W Sources — The M7 vs. M8 Decision
JPT M7 — Maximum MOPA Versatility
The 100W JPT M7 is the better all-around choice for customers who want one powerful MOPA system capable of handling a wide variety of marking and engraving applications.
Its wide adjustable pulse-width range gives you substantial control over how energy is delivered to the material. That flexibility is particularly valuable when moving between very different processes — for example, deep engraving one job, producing color on stainless steel the next, then removing a coating or creating a black mark.
The M7 does especially well with:
- Deep engraving on metals
- Color marking on stainless steel and titanium
- Black marking
- General metal marking and engraving
- Coating removal
- Anodized aluminum marking and removal
- Surface finishing and texturing
- Plastics
- Industrial and production marking
The M7 uses a standard 2D galvo system. Its motorized Z-axis raises and lowers the laser head to set the correct focal height, while the actual engraving process takes place within a fixed focal plane.
For the majority of traditional MOPA marking and engraving applications, the M7 gives you the broadest range of processing options without paying for 2.5D capability you may never need.
JPT M8 2.5D — Precision Depth Processing
The 100W JPT M8 is the more specialized option.
The M8 source is designed around higher peak power and improved beam quality, allowing laser energy to be concentrated into a smaller area when the application benefits from high intensity, fine detail, and precise material removal.
On this Haotian configuration, that source is paired with the G3 PRO 2.5D galvo system and EZCAD3 software.
That combination changes what the machine can do.
Rather than only setting the Z-axis before a job begins, the 2.5D system can incorporate controlled depth changes into the engraving process. As material is removed, the focal position can move through programmed depth levels instead of remaining at one fixed plane.
The M8 2.5D configuration is particularly suited to:
- Glass drilling
- Detailed deep engraving
- Relief engraving
- Recessed features
- Cavities
- Mold and die-style engraving
- Multi-level designs
- Fine-detail engraving at depth
- Precise layer-by-layer material removal
- Applications where maintaining sharp geometry as depth increases is important
- Coating and anodized-layer removal
- Other precision material-processing applications
Glass drilling is specific to the M8 configuration and requires EZCAD3 and the 2.5D processing system. The high peak power of the M8 source provides the energy density needed for glass removal, while the 2.5D system allows the focal position to move through the material layer by layer as the hole is created.
This is a drilling application rather than conventional surface glass marking. If your application is primarily logos, text, or graphics on the surface of glass, a UV laser is generally the more appropriate technology.
The practical advantage is most noticeable when the job is not simply "engrave this design deeper," but instead requires different depths, relief, controlled recesses, cavities, or fine features that need to remain defined as material is removed.
M7 or M8 — Which One Should You Choose?
Choose the JPT M7 if your priority is the widest range of traditional MOPA applications.
For deep engraving, color marking, black marking, coating removal, surface work, plastics, general metal engraving, and production marking, the M7 is an extremely capable and versatile 100W system.
Choose the JPT M8 2.5D if your work specifically benefits from precision depth control or glass drilling.
The M8 combines a higher-peak-power, improved-beam-quality source with the G3 PRO 2.5D galvo and EZCAD3 system, making it the better fit for detailed reliefs, cavities, recessed features, multi-level engraving, glass drilling, and other applications where the laser needs to work accurately through different programmed depths.
M7 = maximum MOPA versatility.
M8 2.5D = specialized precision, depth-controlled processing, and glass drilling.
Neither is universally better. The right choice depends on the type of work you intend to produce.
What's Included — Complete Working System
Every 100W configuration ships complete:
- JPT MOPA source at your selected variant (M7 M-version or M8 M-version)
- Sino-Galvo SG7110 high-speed scanning head with dual red-dot positioning (M7) or G3 PRO 2.5D galvo with integrated EZCad3 (M8)
- Two quartz F-theta lenses of your choice — 70×70, 110×110, 150×150, 175×175, 210×210, or 300×300 mm
- Rotary attachment — D60 (rings/bracelets), D80 (cups/tumblers up to 70mm), or D100 (larger tumblers up to 90mm)
- Motorized Z-axis
- Foot pedal for hands-free triggering
- OD5+ laser safety glasses
- EZCad 2 original software on USB (M7) or EZCad3 (M8)
- Air cooling system (M7) or Industrial water chiller (M8)
- Fixed aluminum worktable
Free DDP shipping to the US, Canada, and EU. Approximately 30 days delivery.
3-Year Warranty — And Why That Number Actually Matters
Both 100W variants carry 3 years of full coverage on the JPT source and the complete machine — including the galvo head, water chiller, motorized Z-axis, and all electronics. This is 2–3× longer than the 1-year warranty common on competing fiber lasers at this price point.
For a production shop where the 100W is running daily and deep engraving throughput directly affects revenue, a chiller failure or galvo fault in month 20 on a 1-year warranty machine is an out-of-pocket cost and a production stoppage. On the Haotian, it's a replacement part with all shipping covered.
The Maker's Chest Difference
USA-based technical support by phone and email — Chiller setup, EZCad 2/3 and LightBurn configuration, deep engraving parameter development, troubleshooting.
Pre-sale guidance — Deciding between M7 and M8, or between 100W and 120W? Talk to us before ordering.
Frequently Asked Questions
Q: How much faster is the 100W than the 60W for deep engraving?
For deep engraving, the 100W can be approximately 50% faster than the 60W in comparable applications. The exact improvement depends on the material, engraving depth, lens, settings, and pass strategy, so engraving time does not scale perfectly with the difference in rated wattage.
The main advantage of moving to 100W is greater average power for material removal, which can significantly reduce cycle times on production deep engraving work.
Q: What is the difference between the M7 and M8 pulse characteristics?
The 100W M7 has a very wide adjustable pulse-width range of 2–500 ns. This broad range is one of the M7's biggest strengths because it gives you extensive control over how the laser interacts with the material.
That versatility makes the M7 particularly well suited to a wide range of MOPA applications including deep engraving, color marking, black marking, coating removal, surface finishing, and general metal marking.
The M8 uses a shorter-pulse architecture optimized for higher peak power and improved beam quality. Rather than simply being a higher-spec version of the M7, it is designed for applications that benefit from concentrated energy, fine detail, and precise material removal.
The exact pulse-width range of the M8 depends on the specific JPT M8 source configuration.
Q: Does the 100W require a water chiller?
It depends on which source you choose.
The 100W JPT M7 is air-cooled and does not require an external water chiller.
The 100W JPT M8 is water-cooled and requires a water chiller to maintain the correct operating temperature. The chiller is included with the M8 machine package.
Q: How do I set Z-axis height? Is the motorized Z standard?
Yes. A motorized Z-axis is standard.
On the M7, the motorized column raises and lowers the laser head so you can set the correct focal height for the material before engraving. The dual red-dot focus pointers help identify the correct focal position.
The M8 2.5D configuration goes further. Its G3 PRO and EZCAD3 system can use controlled Z-axis movement as part of the engraving process, allowing the focal position to move through programmed depth levels for reliefs, cavities, recessed features, and other 2.5D work.
Q: Can I use LightBurn?
M7: Yes. The M7 uses an EZCAD2-compatible JCZ controller and is compatible with LightBurn's galvo functionality. EZCAD2 is also included with the machine.
M8 2.5D: LightBurn now supports EZCAD3-based controllers for standard galvo marking and engraving, including normal 2D work and Z-axis jogging. However, LightBurn does not currently support Z stepping during a running job.
Because of that limitation, EZCAD3 is still required for the M8's full 2.5D depth-processing capability, including workflows where the Z-axis moves through programmed depth levels during engraving.
Q: Does Haotian offer returns?
Haotian is an exception to our standard Return Policy — we're unable to accept returns on Haotian products. This is for two reasons, the first one being that each order is built to spec once placed.
Combined with the high cost of return shipping to China, along with duties and other fees make returns impractical for both us and our customers.
Because of this, our team is happy to answer any questions before you purchase — we want to make sure what you're ordering fully meets your needs before you commit.
We are also available post purchase to answer any unknowns that might come up, and resolve those to your satisfaction.
