The Phrozen Sonic XL 4K Plus is a high-precision LCD 3D printer for dental use, released in 2023. It features a 9.3" 4K Mono-LCD with 52-micron XY resolution for detailed models and prosthetics. Upgrades include a new mainboard, enhanced heating, and a built-in air purifier for consistent, high-quality output. The Sonic XL 4K Plus has a 200 x 125 x 200 mm build volume, enabling batch printing of 6–8 full-arch dental models in about 35 minutes. Dual linear rails with ball screws ensure precise Z-axis movement, while a 30°C heating system supports stable model formation. It includes the Phrozen Dental Synergy Slicer, which automates file prep to streamline workflow. The Sonic XL 4K Plus is built for dental professionals needing high-volume, precise output. It offers reliable performance for demanding labs and clinics, with enhanced Wi-Fi, Ethernet, and front USB for flexible file transfers. A built-in air purifier reduces odors and improves safety during long print sessions.
The Phrozen Sonic XL 4K Plus offers XY resolution up to 52 micron on a 9.3" 4K Mono-LCD, capturing fine details needed for full-arch models and dental prostheses. It supports 0.01–0.30 mm layer thicknesses, giving users control over detail and print speed.
For example, the Sonic XL 4K Plus can print 9 dental aligner models in 2 hours 46 minutes using Liqcreate Premium Model resin at 0.05 mm layers, with 8.8 seconds per layer across 1,134 layers and a vertical speed of 20.4 mm/hour.
The printer’s improved heating keeps a stable 30°C environment, preventing temperature shifts that could affect quality. This control ensures consistent model formation and reduces overheating risks.
The Sonic XL 4K Plus uses dual linear rails with ball screws on the Z-axis for precise vertical movement, paired with a 405nm ParaLED 3.0 light source for accurate layer formation. Regular cleaning and lubrication maintain print quality by preventing Z-axis-related defects.
The printer’s build volume supports batch production with consistent precision. Phrozen Dental Synergy (DS) Slicer enhances quality by automating supports and optimizing settings for dental use.
The Phrozen Sonic XL 4K Plus supports over 50 UV-curable resins at 405nm, including Phrozen’s dental resins — Study Model, Ortho Model, Water-Washable, and Gingiva Mask — ensuring precision for dental use. It also supports third-party resins from Keyprint, NextDent, Enlighten Materials, Dreve, Dentona, Detax, SAREMCO, PacDent, BJM LAB, and YAMAHACHI DENTAL.
Full Resin Profiles are available here: https://dental.phrozen3d.com/pages/resin-profile-sonic-xl-4k-plus-phrozen-dental
Liqcreate Premium Model Print Sample
NextDent Model Ortho Print Samples
NextDent Ortho Clear Print Sample
SprintRay Dental Casting Print Samples
FunToDo Ash Grey Print Sample
The 405nm ParaLED 3.0 Module delivers the precise light needed to cure dental resins, ensuring optimal material performance.
Material compatibility is supported by the improved heating system for temperature-sensitive resins and a built-in air purifier that reduces odors.
The Sonic XL 4K Plus includes the Phrozen Dental Synergy (DS) Slicer with pre-configured resin settings, streamlining the print process. Validated profiles optimize exposure and key parameters, ensuring consistent results without trial and error.
The Sonic XL 4K Plus provides a 200 x 125 x 200 mm build volume, ideal for dental use. Its 9.3" 4K Mono-LCD maintains 52-micron XY resolution across the entire plate, ensuring consistent detail throughout.
The Sonic XL 4K Plus’s large build volume is optimized for batch printing, producing 6–8 full-arch models in about 35 minutes — far faster than smaller printers. Its 200 mm Z-height supports taller models, while dual linear rails with ball screws ensure precise layers throughout.
The Phrozen Sonic XL 4K Plus offers the second-largest build volume (4.7L) in its class while being 40% cheaper than the next most affordable competitor, the Ackuretta SOL. Though it uses LCD instead of DLP technology, its 52-micron XY resolution meets the 0.25mm accuracy standard for orthodontic work. This makes it a strong entry-level choice for practices handling 15+ monthly restorative cases, offering high-volume output without the premium cost of models like the SprintRay Pro 2 or Asiga Max 2 UV.
| Specification | Phrozen Sonic XL 4K Plus | Ackuretta SOL | Formlabs Form 4B | SprintRay Pro 2 | Asiga Max 2 UV |
|---|---|---|---|---|---|
| Build Volume (mm) | 196.6 × 120.3 × 200 | 150 × 92 × 120 | 200 × 125 × 210 | 188 × 105 × 200 | 119 × 67 × 75 |
| Build Volume (liters) | 4.7 | 1.7 | 5.3 | 4.0 | 0.6 |
| Technology | LCD (mono) | LCD (mono) | MSLA with LFD backlight | DLP-class Optical Panel | DLP |
| XY Pixel / Resolution | 52 µm | 49 µm | 50 µm | 35 µm | 62 µm (or 50 µm lens option) |
| Light Source / Wavelength | ParaLED® Matrix 3.0, 405 nm | 385–405 nm | Backlight array, 405 nm | 385 nm UV-A LED (liquid-cooled) | 385 nm LED (405 nm option) |
| Layer Thickness | 30/50/100 µm presets | 30–150 µm | 25–300 µm | 50/100/170 µm | 50–100 µm typical (material-dependent) |
| Print Speed | Up to 90 mm/h | Up to 45 mm/h | Up to 100 mm/h (average 40 mm/h) | Up to 50 mm/h (up to 100 mm/h with the Arch Kit) | 60mm/hr |
| Thermal / Process Controls | Built-in heater | Built-in heater | Conduction resin heating (≈25–45 °C) + sensors for resin level/forces; onboard camera | Automatic resin heating (onboard) | Built-in heater |
| Software / Slicer | Phrozen DS Slicer | ALPHA AI slicer | PreForm; Dashboard remote monitoring | RayWare / RayWare Cloud | Asiga Composer (lifetime updates) |
| Connectivity | USB / Ethernet / Wi-Fi | USB / Ethernet / Wi-Fi | USB-C / Ethernet / Wi-Fi (2.4/5 GHz) | USB-C / Wi-Fi / Ethernet | Wi-Fi / Wireless Direct / Ethernet |
| Price (USD) | $3,500+ | $5,800+ | $7,000+ | $11,000+ | $13,000+ |
The Sonic XL 4K Plus offers 12 printer controls via a 5-inch touchscreen for managing prints and system settings.
Primary Print Controls (4 controls)
System Calibration Controls (2 controls)
Environmental Controls (3 controls)
Operational Controls (3 controls)
The Sonic XL 4K Plus supports 3 connectivity options: USB, Ethernet, and Wi-Fi. The front USB port lets users load .PRZ files directly via the touchscreen.
The Sonic XL 4K Plus features improved 2.4GHz Wi-Fi for stronger, more stable wireless transfers. Both Wi-Fi and Ethernet enable direct file transmission from the Phrozen DS Slicer, letting users send sliced models to the printer without using external drives.
The Phrozen DS Slicer lets users send files over the network by entering the printer’s IP in the “Machine URL” field. Both the computer and printer must be on the same network for this to work.
The Sonic XL 4K Plus includes Phrozen’s Dental Synergy (DS) Slicer, which automates file prep with optimized supports and settings for dental models.
The software supports third-party integration, including compatibility with 3Shape, expanding workflow options for dental professionals.
Firmware updates are available from the Phrozen Dental Help Center to keep the Sonic XL 4K Plus up to date with the latest features and improvements.
The Sonic XL 4K Plus has a compact desktop form factor, measuring 330 x 290 x 470 mm and weighing 17.2 kg. Its fully enclosed design features a flip-up cover for easy access to the full print area.
The front panel includes a 5-inch touchscreen below a UV-blocking tinted window. The 2023 Plus model adds side door closers to prevent accidental cover slams and damage.
The Sonic XL 4K Plus uses a dual linear rail Z-axis with ball screws for precise vertical movement. Two 15 mm rail guides and a ball screw assembly, supported by top and bottom bearings, ensure stability. A stepper motor inside the body drives the system via a detachable coupling for maintenance. The aluminum carriage is mounted on a wide, screw-secured base to prevent axis deviation under load.
The Sonic XL 4K Plus uses a single cooling fan to regulate the LED matrix, LCD, and electronics. In the Plus version, all fans are moved to the lower section to reduce noise and enhance appearance.
The 200 x 125 x 200 mm build platform offers a 4.7L volume. Made of anodized aluminum, it features beveled top edges to aid resin drainage during printing.
The platform mounts to the Z-axis carriage with two thumb screws for manual leveling. Calibration uses a four-screw adjustment and paper between the platform and LCD screen.
The Sonic XL 4K Plus uses a 405nm ParaLED® 3.0 Module beneath the LCD, with UV LEDs and lenses for even light distribution. Light intensity is adjustable from 50–100% to suit various resins and extend LCD life. The 405nm wavelength is the MSLA industry standard.
The Sonic XL 4K Plus uses a manual resin system with no auto-feeding. The upgraded aluminum vat features side handles, increased capacity with a wider top, and a drainage cutout for easy resin removal.
The vat rests on the 9.3-inch 4K mono LCD, with resin manually poured to the correct level. Users must replace the FEP film periodically and filter resin between prints.
The Sonic XL 4K Plus features a new mainboard for improved efficiency and crash prevention. It runs Phrozen OS on an Orange Pi board, handling the interface, networking, and system functions. The mainboard connects to key components like the Z-axis motor, LCD, LEDs, heater, and connectivity modules. Firmware and OS files are stored on a microSD card.
The Sonic XL 4K Plus uses a 100–240V, 50–60Hz power supply with 180W consumption, supporting global use without voltage conversion. It powers the LCD, ParaLED 3.0, Z-axis motor, heating system (30–35°C), cooling fan, and Orange Pi. A power port and button are located on the rear panel.
The Phrozen Sonic XL 4K Plus package includes:
The Sonic XL 4K Plus ships fully assembled with all components for immediate dental printing. The toolbox includes an Allen wrench for Z-axis calibration, scrapers, a resin funnel, and protective gloves. It also comes with the Phrozen DS Slicer and documentation for setup, calibration, and warranty.
Please Note: Package contents are determined by the manufacturer and may change without notice. To confirm the current items included with this product, please contact a Top3DShop sales representative before placing your order.
The Phrozen Sonic XL 4K Plus supports 5+ accessories and replacement parts.
| Accessory | Function | Price (USD) | Image |
|---|---|---|---|
| WASH+ | Dual-tank cleaning system for post-processing dental 3D prints with 5-minute wash cycles, supporting up to 24 models simultaneously | $800 |  |
| CURE+ | Multi-wavelength (365/385/405nm) post-curing unit with controlled heating at 60°C for biocompatible dental appliances in 5-10 minutes | $1,300 |  |
| Phrozen Heat & Mix | Automated resin heating and mixing station with temperature control up to 50°C for homogeneous material preparation | $259 |  |
| Replacement PFA (nFEP) Film | High-performance vat film with lower suction force and superior release properties for improved print success rates | $25 |  |
| LCD Screen Replacement | 9.3" 4K monochrome LCD screen replacement with thermal resistance and 3-month warranty coverage | $170 |  |
The Phrozen Sonic XL 4K Plus requires 15+ maintenance procedures to ensure optimal print quality and extend operational lifespan.
After Every Print (Daily Maintenance)
Weekly Maintenance (Every 5–10 Prints)
Monthly Maintenance (Every 20–50 Prints)
Quarterly Maintenance (Every 3 Months)
As-Needed Component Replacement
The Sonic XL 4K Plus includes a one-year warranty for major components and mechanical parts, excluding consumables. The 9.3" 4K Mono-LCD screen has a separate 3-month warranty as a wear item. Coverage starts at delivery and excludes damage from user error. Phrozen offers technical support through the Dental Help Center, which includes documentation, troubleshooting guides, and maintenance tutorials for the Sonic XL 4K Plus. Users can find step-by-step instructions for tasks like Z-axis calibration, FEP replacement, and LCD testing, as well as firmware and software downloads. Phrozen provides direct support via an online ticket system for technical inquiries. Each Sonic XL 4K Plus includes a warranty certificate with a QR code linking to support resources. Top3DShop buyers also receive pre-sales consultation and post-purchase technical support alongside Phrozen’s warranty.
Full warranty terms: https://phrozen3d.com/pages/warranty-policy
The Phrozen Sonic XL 4K Plus is available at $3,499.00, offering a professional solution for high-volume, precision dental 3D printing. The price includes the full system — 9.3" 4K Mono-LCD, dual linear rail Z-axis, built-in air purifier, improved heating, and the Phrozen DS Slicer. For pricing, financing, or a custom quote with accessories like WASH+ and CURE+, contact a Top3DShop sales representative.
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