Qidi Max4 Large-Format Industrial 3D Printer (390x390x340mm)

Please note: Due to the weight (125 lbs), there is a $50 fixed shipping charge for this item, in line with Qidi's official structural shipping policies.

Break the size barrier with the Qidi Max4, the ultimate large-format powerhouse engineered for industrial-grade performance. Designed for professionals who demand massive scale without sacrificing structural precision, the Max4 features a colossal build volume paired with uncompromising mechanical stability. Whether you are fabricating full-scale automotive mockups, industrial jigs, or high-strength aerospace components, this machine is built to handle the most demanding challenges in additive manufacturing.

Why the Qidi Max4 Sets a New Industrial Benchmark

The Max4 is a completely reimagined flagship platform. By implementing Field-Oriented Control (FOC) closed-loop stepper motors and advanced thermal management systems, it ensures that large-scale parts maintain strict dimensional accuracy from the foundational first layer to the final pass.

• Colossal Build Volume (390 x 390 x 340 mm): Offering 55% more usable space than previous generations, the expansive chamber allows you to print large functional parts as a single continuous piece, eliminating weak assembly joints and post-processing weld steps.
• FOC Closed-Loop Stepper Motors: Provides real-time positional feedback to eliminate skipped steps, drastically reducing print failures on heavy, multi-day component runs.
• Active Chamber Heating (Up to 65°C): Essential for advanced engineering materials such as ABS-CF, Polycarbonate (PC), and Carbon Fiber-Nylons. The controlled ambient environment prevents warping, limits internal stresses, and guarantees superior interlayer bonding.
• Blistering Speed & Volumetric Flow: Achieve rapid print speeds up to 800 mm/s with an acceleration threshold of 30,000 mm/s². The high-flow hotend maintains a volumetric throughput of 40 mm³/s to effortlessly keep pace with the high-acceleration motion system.
• Ultra-Stable Dual Z-Axis: Utilizing heavy-duty lead screws coupled with anti-backlash nuts, the Z-axis eliminates surface artifacts and Z-wobble, ensuring a flawless exterior surface finish even on tall, high-mass models.

Technical Specifications

Smart Workflow & Rugged Construction

The Max4 acts as an autonomous production cell. An integrated, high-processor AI Camera continually assesses the print state in real time, pausing execution immediately upon detecting anomalies or filament accumulation. Working alongside an absolute full-auto bed calibration matrix and a 3-in-1 carbon/HEPA filtration exhaust loop, it yields an eco-friendly, low-maintenance work environment ideal for office labs or shop floors.

• Industrial Linear Guide Rails: High-hardness, precision-ground rails handle high-velocity direction changes smoothly, reducing vibrations and maintaining tight tolerances over thousands of operational hours.
• Polar Cooler Compatibility: Seamlessly integrates with the optional toolhead secondary cooling accessory to combat heat creep, optimize part cooling, and eliminate potential clogs during high-speed printing.
• QIDI BOX Multi-Material Integration: Native support for multi-filament configurations, empowering you to deploy complex soluble support architectures, multi-durometer builds, or custom aesthetic designs.

Ideal Target Applications

• Manufacturing & Tooling Labs: Excellent for direct fabrication of end-use parts, manufacturing jigs, and functional shop fixtures.
• Automotive & Aerospace Engineering: Optimized for rapid turnarounds on massive, chemically resistant, high-temperature components and functional housing prototypes.
• Enterprise Power Users: Designed for demanding makers and technical teams requiring the absolute upper limit of build volume without sacrificing rapid speed profiles or technical material support.