Genmitsu PRONAX Spark 6090 ATC CNC Router

Load Five Bits Once and Let Every Multi-Tool Job Finish Itself

The Genmitsu PRONAX Spark 6090 gives you a 600 × 900 mm (23.6" × 35.4") work area, a 2.2 kW VFD spindle and closed-loop motion, and it is the most affordable way into the NAX5 five-slot automatic tool changer.

Pre-order: the PRONAX Spark is estimated to ship in December 2026 from Genmitsu's next production batch. Orders placed now reserve a machine from that batch.

The hidden cost of an entry-level CNC is not the machine; it is the time you spend standing next to it. Every project that needs more than one cutter means stopping the spindle, swapping the bit by hand, re-zeroing Z and hoping the new offset is right. Multiply that by a batch of signs, plaques or guitar parts and most of your shop day goes to babysitting rather than producing.

The Genmitsu PRONAX Spark is built for the maker who has hit that wall. Spindle, VFD, offline controller and the optional NAX5 tool changer come from one manufacturer and are validated together, so tool changes and length compensation happen automatically inside your program. Its long 900 mm bed fits the work that small shops sell most, and its price puts automatic tool changing within reach of a shop still growing into its first steady stream of orders.

Stop Swapping Bits by Hand Between Roughing and Finishing

The NAX5 automatic tool changer racks five ER20-A tool holders away from the main cutting zone. When the program calls the next tool, the spindle drops off its current cutter, raises Z to clear the neighboring slots, picks up the new one and touches it off on a fixed probe with 0.013 mm repeatability. Each slot is identified and status-lit, so you can see at a glance what is loaded where. A typical rack-style changer bolted onto a hobby router depends on you to wire in a separate VFD and controller; NAX5 talks to the PRONAX controller over RS-485 using firmware written for it. A three-tool carved sign becomes one uninterrupted run instead of three separate setups.

Fit Guitar Necks, Long Signs and Full Plaque Runs on One Bed

The Spark cuts a 600 × 900 mm bed with 118 mm of Z travel and 149 mm of material clearance, the classic 2 × 3 ft format that sign makers and luthiers reach for. That 900 mm length clears a full guitar neck or a 35-inch sign in one setup, and it lines up a row of plaques or cutting boards without re-fixturing. Its sibling, the PRONAX Forge, trades length for a square 800 × 800 mm bed; the Spark keeps a narrower 968 mm frame width, which helps it fit along a garage wall or on a standard workbench. For long, narrow work, the Spark is the better fit, and the lower price is a bonus.

Take Deeper Passes in Hardwood and Real Cuts in Aluminum

Cutting power comes from a 2.2 kW air-cooled spindle driven by the VFD in the control box, turning 0–18,000 RPM on 110 V or 0–24,000 RPM on 220 V and taking standard ER20 collets (1/8", 1/4" and 4 mm included). Entry-level machines usually rely on a trim router under 1 kW that slows down in dense stock, which is why so many hobby users settle for shallow passes and avoid aluminum altogether. With more than twice that power, the Spark holds speed through oak, maple and acrylic and gives you a practical path into aluminum and brass. Air cooling keeps setup simple: no pump, hoses or coolant to manage.

Get the Same Result on the Last Part as the First

The Spark's accuracy over a long day rests on ball screws on every axis, 1605 on X and Y and 1204 on Z, guided by an HG20 linear rail on X, a hardened 20 mm linear shaft on Y and an HG15 rail on Z. Closed-loop NEMA 24 steppers rated at 3.5 N·m confirm every move with encoder feedback and correct it, unlike open-loop motors that can lose steps under a heavy cut and never tell you. The all-aluminum frame ties it together. For a shop selling repeat products, that consistency is what keeps the twentieth order looking exactly like the photo on your listing.

Shorten Run Times and Free Up Your Computer

Rapid moves reach 6,221 mm/min on X and Y and 4,972 mm/min on Z, trimming the dead time between features on detailed V-carves and 3D reliefs. The GRBL 1.1f controller works with Candle, Easel, UGS and other GRBL-compatible senders, and it accepts G-code from Fusion, Carveco or Vectric VCarve. Because the controller supports offline operation, a job can run without a laptop plugged in the whole time, so a sleeping PC or a USB hiccup no longer ends a two-hour carve.

Replace a Worn Spoilboard Section Instead of the Whole Sheet

The ATC configuration includes the PRONAX Hybrid Table, a bolt-on platform kit made for the Spark's 6090 bed. It is built from three custom spoilboard panels secured by two pairs of upper and lower clamping bars, with leveling feet and a drag-chain mounting bracket. When one zone of the bed gets chewed up by through-cuts, you swap that panel rather than surfacing and replacing a full sheet. The clamping bars give fixed reference points for repeat jobs, and the platform gives the NAX5 rack a consistent mounting height. On its own the hybrid table sells for $399, which is a large part of the value in the bundle.

Grow Into Rotary Work, Vacuum Hold-Down and Automatic Dust Control

The Spark is built to expand. Genmitsu lists support for an MPG pendant, a 4th axis, a dust shoe and a vacuum fixture, with a PRONAX-specific harmonic-drive 4th axis in development that adjusts to fit both Spark and Forge. With the NAX5 fitted, the machine can attach and remove the dust shoe automatically around each tool change, using a dust shoe and cleaning module you can 3D print from Genmitsu's published files. XYZ limit switches and an emergency stop are standard for safe unattended runs.

Who the PRONAX Spark Is Built For

• Sign makers producing long carved and V-carved signs
• Guitar builders and luthiers cutting necks, bodies and fretboards
• Etsy and craft-fair sellers running repeat products like plaques, cutting boards and décor
• School shops and makerspaces that want multi-tool jobs to run without supervision
• Owners of 3018, 4030 or 6050-class routers ready for a production-minded upgrade

What's in the Box

Machine Only configuration:

• Machine frame in 3 semi-assembled modules (XZ-axis module, Y-axis left module, Y-axis right module)
• PRONAX control box (GRBL 1.1f, offline-capable, VFD included)
• 2.2 kW air-cooled spindle
• ER20 collets: 1/8", 1/4" and 4 mm
• 3-piece starter bit set: 4 mm end mill, 1/8" V-bit, 1/8" 3-flute aluminum end mill
• Z-probe kit
• 4-piece clamp kit and 2 auxiliary mounting strips
• 5 dowel pins
• Power cord and USB A-to-B cable
• USB drive with software and documentation
• Tool kit: 21 mm and 30 mm wrenches, 2.5/3/4/5 mm Allen wrenches, hex socket screwdriver
• Cable ties, mounting hardware and fasteners
• User manual

Machine + NAX5 ATC System + Hybrid Table adds:

• NAX5 five-slot automatic tool changer module with calibration jig, 4 mm calibration plug gauge, 2 m connection cable, mounting screws and manual
• PRONAX Spark Hybrid Table: 3 custom spoilboard panels, 2 pairs of upper and lower clamping bars, platform profiles, drag-chain mounting bracket, 4 rubber leveling feet and hardware

Specifications

Warranty and Documentation

The Genmitsu PRONAX Spark is covered by a 1-year manufacturer warranty on the machine, excluding consumables and shipping, and every order through The Maker's Chest is covered by our 75-Day Returns policy. Download the PRONAX Spark User Manual (PDF) and the NAX5 Automatic Tool Changer Manual (PDF).

The Maker's Chest Difference

• 🛡️ 75-Day Returns on your order, well beyond the 30-day window most CNC sellers offer
• 🇺🇸 US-based support team you can call at 1-833-962-5377, Monday to Friday, before and after you buy
• 🔧 1-year Genmitsu warranty handled through us, so you have one point of contact if a part needs replacing
• 📐 Spark or Forge guidance from people who sell both, matched to the size and shape of the parts you actually cut
• ⚙️ Honest advice on the ATC bundle, including whether your work justifies the NAX5 now or later
• 🏫 Experience equipping schools, universities and small businesses with CNC and laser equipment, including help planning a multi-machine shop

PRONAX Spark vs. PRONAX Forge

Choose the Spark if your work is long and narrow, such as guitar necks, long signs and rows of plaques, or you want the lowest-cost route into automatic tool changing.

Choose the Forge if your work is wide, such as cabinet doors, square signs or nested sheets of parts, and you want the largest cutting area in the PRONAX line.

Frequently Asked Questions about the Genmitsu PRONAX Spark

Q: What's the difference between the PRONAX Spark and the PRONAX Forge?

A: They share the same spindle, motors, ball screw motion system, controller and NAX5 compatibility. The Spark cuts 600 × 900 mm, a long format suited to signs and guitar parts, while the Forge cuts a square 800 × 800 mm. The Spark costs $200 less and has a narrower frame.

Q: When will the PRONAX Spark ship?

A: The PRONAX Spark is a pre-order, and both configurations are estimated to ship in December 2026 from Genmitsu's next production batch. Call or email us any time for an update on your order.

Q: Is the automatic tool changer included?

A: Only in the Machine + NAX5 ATC System + Hybrid Table configuration. The Machine Only configuration uses the 2.2 kW spindle with manual ER20 collet changes and is NAX5-compatible, so the tool changer can be added later. Call us if you want help deciding.

Q: Will the NAX5 work on my existing Genmitsu PROVer or another brand of CNC?

A: No. The NAX5 is designed only for the PRONAX Spark and Forge and depends on the PRONAX controller and firmware for tool-change sequencing, length compensation and slot identification.

Q: What size tools can the NAX5 hold?

A: It uses ER20-A tool holders for cutters up to 14 mm in diameter, with a recommended total tool length of 75 mm or less, since the spindle lifts over the neighboring slots when it travels between tools.

Q: Is the PRONAX Spark good for beginners?

A: It is aimed at users moving up from an entry-level CNC, but a motivated beginner can run it. GRBL control with Candle or Easel keeps the software side familiar, and the automatic tool changer removes the most error-prone manual step, re-zeroing Z after a bit change.

Q: What materials can the PRONAX Spark cut?

A: It cuts hardwood, plywood, MDF, acrylic, plastics and foam, and can machine aluminum and brass with suitable bits, feeds and speeds thanks to its 2.2 kW spindle.

Q: What power does it need?

A: The PRONAX Spark runs on AC 110–230 V. A standard US 110 V outlet gives up to 18,000 RPM at the spindle; 220 V gives up to 24,000 RPM.

Q: How much assembly is required?

A: It ships as three semi-assembled modules: the XZ-axis module and the left and right Y-axis modules. You join them, mount the spindle and connect the control box using the included tools and manual.

Q: Is the warranty valid when I buy through The Maker's Chest?

A: Yes. The PRONAX Spark carries Genmitsu's 1-year machine warranty, excluding consumables and shipping, and our US-based team manages warranty claims with Genmitsu for you.

Q: What is the return policy?

A: US orders are covered by our 75-Day Returns policy. Email support@themakerschest.com with your order number to start a return; the full conditions are on our Returns & Refund Policy page.

Q: Why buy from The Maker's Chest instead of directly from SainSmart?

A: You get the same machine plus a 75-day return window, a US-based team you can call before and after you buy, and straight advice from people who sell several CNC brands on whether the Spark, the Forge or something else suits your work.

Genmitsu PRONAX Spark 6090 Specifications:

Genmitsu PRONAX Spark 6090 Warranty and Manuals:

• The Genmitsu PRONAX Spark comes with a 1-year manufacturer warranty on the machine (excluding consumables and shipping).
• US orders are covered by The Maker's Chest 75-Day Returns policy.
• Dedicated US-based support from The Maker's Chest team.

Download the PRONAX Spark User Manual (PDF)

Download the NAX5 Automatic Tool Changer Manual (PDF)