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Ultra-fast White Wax Machine UR Series: Ultra-fast molding, micrometer precision casting benchmark

2026-04-01

Our UR Series ultra-fast wax printers are self-developed flagship industrial DLP photopolymerization equipment tailored for the entire process of digital lost-wax casting of jewelry. As the first jewelry-specific wax printer in China to achieve true continuous molding, the series covers a full range of models including the 4KL200URC standard mass-production type and the 4KL400UR Pro large-format flagship type. Focusing on the three core pain points of jewelry factories—insufficient production capacity, unstable precision, and low casting yield—it has built three irreplaceable closed-loop core advantages: ultra-high-speed continuous molding, micron-level ultra-high precision, and full-link high casting compatibility. It has completely broken the technological monopoly of imported equipment and become a benchmark core equipment for jewelry factories to achieve digital mass production upgrading, cost reduction and efficiency improvement.

I. Exclusive Ultra-High-Speed Continuous Molding of the UR Series: Breaking the Ceiling of Mass Production Efficiency from the Technical Level to Realize Large-Scale and Rapid Production of Jewelry Wax Patterns

Ultra-high-speed continuous molding is the core differential barrier that distinguishes the UR Series from ordinary DLP equipment in the industry. Relying on our fully self-developed UR ultra-fast continuous liquid interface molding patent technology, it completely breaks the efficiency bottleneck of the "stop-expose-lift" intermittent printing of traditional photopolymerization equipment, eliminates more than 95% of non-exposure dead time from the technical level, achieves a qualitative leap in printing efficiency, and truly solves the core pain points of jewelry factories: "unable to take large orders, unable to deliver urgent orders, and high labor costs".

1. Breakthrough in Self-Developed Technical Foundation: Achieving True Non-Stop Continuous Molding

Ordinary DLP wax printers in the industry generally adopt an intermittent printing logic. Each layer of printing must complete the full cycle of "platform descending → static demolding → exposure curing → platform ascending". Among them, the non-exposure waiting time for demolding and lifting accounts for as high as 60%-70%, which is the core source of efficiency loss; moreover, frequent forceful peeling actions are likely to cause model cracking and bottom falling, with a printing success rate of only about 80%.

The UR Series has completely reconstructed the printing logic through three core self-developed components, realizing almost non-stop "growth-type" continuous printing:

High Oxygen Permeability Controllable Release Film Component: Adopting our exclusive formula of fluorine-based high oxygen permeability release film, the oxygen permeability is 8 times that of ordinary release films in the industry. It can accurately form a stable "liquid curing inhibition layer (dead zone)" with a thickness of 10-20μm at the bottom of the resin tank, so that the cured wax pattern will not directly adhere to the release film. It does not require the forceful peeling action of traditional equipment, and only needs minimal pulling force to complete interlayer separation, fundamentally eliminating the demolding waiting time and serving as the core foundation for continuous molding.

Dynamic Synchronous Z-Axis Servo Control System: The entire series is equipped with imported Japanese THK double linear guides + C3-level high-precision ball screws, combined with Yaskawa absolute value closed-loop servo motors. The Z-axis lifting movement is completely synchronized with UV exposure curing—not "exposing after stopping stably", but completing the entire layer of exposure synchronously while the platform rises at a constant speed. The interlayer switching time is reduced from 2-5 seconds per layer of traditional equipment to less than 0.2 seconds, and the non-exposure dead time is reduced by more than 95%.

Intelligent Exposure Closed-Loop Algorithm: The self-developed adaptive exposure algorithm can dynamically adjust the exposure power, Z-axis rising speed and exposure timing according to the cross-sectional area of the printing layer, model height, and real-time resin temperature. For example, large cross-sectional layers automatically fine-tune the exposure energy to avoid insufficient curing, and small cross-sectional layers speed up synchronously without wasting time. It not only ensures the stability of continuous molding, but also does not sacrifice curing quality, completely solving the industry common problem of "yield reduction when speeding up".

2. Landing Mass Production Efficiency Leap: Production Capacity Increased by 3-8 Times Compared with Traditional Equipment

The continuous molding technology of the UR Series has finally been transformed into mass production capacity that can be directly reused by jewelry factories, and the efficiency of all models has reached the top level in the industry:

Standard Mass-Production Model 4KL200URC: The rated continuous Z-axis printing speed is 15-30mm/h, and the maximum speed can reach 50mm/h. In actual jewelry production scenarios, it only takes 1-1.5 hours to print a full plate of 50 conventional women's ring wax patterns, while ordinary DLP equipment in the industry takes 8-12 hours for the same production capacity; a full plate of 120 earring wax patterns can be printed in 2 hours, and the daily 7×24-hour full-load production capacity can reach more than 800 pieces, which is 5 times that of traditional equipment.

Large-Format Flagship Model 4KL400UR Pro: The rated continuous Z-axis printing speed is 20-40mm/h, and the molding format is 345×194mm. It only takes 3 hours to print a full plate of 200 ring wax patterns, and the daily full-load production capacity can reach more than 1200 pieces, which is 6-8 times that of traditional equipment.

Urgent Order Delivery Capacity: It takes 6-8 hours for traditional equipment to print the wax pattern of a set of custom jewelry, while the UR Series only takes 40 minutes to 1.5 hours. The delivery cycle of custom orders is shortened from 7 days to 2 days, greatly improving the order undertaking capacity of the factory.

3. Industrial-Grade Continuous Operation Guarantee: Realizing 72-Hour Unattended Stable Production

The UR Series is designed for large-scale continuous production in factories, ensuring the reliability of long-term high-load operation from hardware to software:

Equipped with a full-automatic closed-loop feeding system, combined with an infrared liquid level real-time monitoring module. When the resin liquid level is lower than the threshold, it automatically completes feeding from the sealed storage tank. The feeding process does not interrupt printing and does not require manual intervention midway;

Equipped with a resin tank constant temperature control system, the resin temperature fluctuation is controlled within ±1℃ during continuous printing, avoiding resin heating, fluidity changes, and curing parameter drift caused by long-term printing, and ensuring that the curing quality of each layer during continuous printing is completely consistent;

Industrial-grade fully enclosed body and efficient heat dissipation system can ensure no light source overheating attenuation and no electrical parameter drift under 7×24-hour high-load operation of the equipment. The continuous printing yield is stably above 99%, greatly reducing labor on-duty costs and equipment downtime loss.

II. Micron-Level Ultra-High Precision of the UR Series: Double Locking of Full-Link Hardware + Algorithm, No Compromise on Speed, and Ultimate Restoration of Jewelry Design Details

Micron-level ultra-high precision is the core foundation for the UR Series to adapt to precision jewelry manufacturing. Aiming at the core pain points of ordinary equipment in the industry—"loss of precision when speeding up, edge precision attenuation, poor batch consistency, and cumbersome post-processing polishing"—we have made exclusive jewelry-specific optimizations of full-link hardware and algorithms. While achieving ultra-high-speed printing, it has achieved the top-level detail restoration ability, full-format dimensional consistency and surface finish in the industry, completely laying a solid foundation for high-quality casting.

1. Industrial-Grade Top Configuration Hardware: Locking the Upper Limit of Micron-Level Precision from the Source

The entire UR Series abandons consumer-grade accessories and adopts industrial-grade customized hardware in the whole link, locking the upper limit of equipment precision from three dimensions: optics, motion, and environmental control:

Optical System: The entire series is equipped with an industrial-grade customized 4K MONO monochrome projection light engine with a UV wavelength of 405nm and optical distortion < 0.1% (optical distortion of ordinary equipment in the industry > 1%); native 4K physical resolution, not interpolated. The XY-axis native pixel precision of the 4KL200URC model reaches 30μm, and that of the 4KL400UR Pro model reaches 52μm, which can accurately capture every subtle structure in the design drawing. The service life of the light source can reach more than 20,000 hours, and the energy attenuation after long-term use is < 5%, which is far better than the attenuation rate of more than 15% of ordinary equipment in the industry.

Motion System: The Z-axis adopts imported Japanese THK double linear guides + C3-level high-precision ball screws, combined with Yaskawa absolute value closed-loop servo motors. The Z-axis repeat positioning accuracy can reach ±1μm, and the positioning resolution can reach 0.1μm (ordinary equipment in the industry adopts domestic guides + stepping motors, with a repeat positioning accuracy of only ±5μm or more); the printing layer thickness supports stepless adjustment of 10μm, 20μm, 30μm, and 50μm, with a minimum layer thickness of 10μm, reaching the top level in the industry.

Environmental Control System: The entire series is equipped with a multi-point bottom plate heating + resin tank dual constant temperature system. The heating temperature of the printing platform can be steplessly adjusted from 30-60℃, and the resin tank is thermostatically controlled at 35℃ ± 0.5℃, which is completely not affected by the fluctuation of the workshop environment temperature (low temperature in winter, switch of air conditioning in summer, day and night temperature difference). It avoids uneven curing shrinkage, model warpage, and dimensional deviation caused by changes in resin fluidity, and solves the industry common problem of "different sizes printed in winter and summer" of ordinary equipment.

2. Self-Developed Exclusive Algorithms: Achieving Full-Format Dead-Angle-Free Precision Consistency and Zero Batch Deviation

Aiming at the pain points of ordinary equipment in the industry—"high precision in the center, poor precision at the edges, poor consistency in a single plate, and poor batch stability"—the UR Series is equipped with 3 self-developed jewelry-specific precision optimization algorithms:

Full-Format Pixel-by-Pixel Light Uniformity Calibration Algorithm: Before leaving the factory, each UR Series equipment completes pixel-by-pixel light uniformity calibration of the full format, and the final full-format light uniformity is ≥95% (ordinary equipment in the industry is only 70%-80%, and the edge light intensity is only 60% of the center). The curing energy deviation at any position of the full format is ≤3%, which completely solves the problems of insufficient edge curing, small size, and blurred details.

Sub-Pixel Level Edge Anti-Aliasing Algorithm: For subtle structures such as jewelry micro-setting pins, filigree patterns, and inner ring laser inscriptions, sub-pixel level gradient exposure technology is adopted to completely eliminate pixel aliasing. It can achieve a roundness deviation of ≤0.01mm for 0.08mm micro-setting pins, no step marks on vertical sidewalls, perfectly restore the circular structure of the design, ensure the fit during stone setting, and avoid the risk of stone falling.

Interlayer Smooth Transition Algorithm: Gradient exposure technology is adopted between Z-axis layers to eliminate interlayer step marks. For wax patterns printed with a 20μm layer thickness, the surface roughness Ra ≤ 0.8μm (Ra ≥ 2.0μm for ordinary equipment in the industry). The printed wax patterns have an extremely smooth surface without visible layer lines to the naked eye, and no manual polishing is required.

3. Quantifiable Precision Performance: Ultimate Detail Restoration and Greatly Reduced Post-Processing Costs

The precision advantage of the UR Series has finally been transformed into practical value directly perceptible to jewelry factories:

Dimensional Precision: The linear dimensional deviation of the formed model is ≤±0.03mm/100mm, the dimensional deviation at any position of the full format is stably controlled within ±0.05mm, and the dimensional deviation between batches is ≤±0.02mm. It completely solves the problems of poor batch consistency and low casting fit of manual wax carving and ordinary equipment printing.

Detail Restoration Ability: It can stably form 0.08mm independent cylinders and 0.05mm ultra-thin wall structures without deformation or fracture. It perfectly reproduces extremely subtle designs such as jewelry micro-setting grooves, ancient gold bead-blasting textures, filigree patterns, inner ring laser inscriptions, and complex hollow structures, without edge breakage, blurring, or detail loss, and 1:1 restores all the designer's creativity.

Post-Processing Cost Savings: For more than 70% of the models, after printing, only alcohol cleaning + post-curing are needed to directly enter the casting process without any manual polishing; the polishing time for the remaining complex models is also reduced from the traditional 15 minutes per piece to less than 2 minutes per piece, and the overall post-processing labor cost is reduced by more than 70%.

III. Full-Link High Casting Compatibility of the UR Series: Deeply Optimized for Jewelry Lost-Wax Casting, Ensuring a Casting Yield of Over 99% from the Source

High casting compatibility is the core feature that distinguishes the UR Series from general-purpose photopolymerization equipment, and also the core technological precipitation of our company's years of deep cultivation in the jewelry industry. General-purpose photopolymerization equipment generally has the common problem of "good printing effect but many problems in casting". The UR Series has made in-depth customized optimizations for the entire process of jewelry lost-wax casting from three dimensions: equipment, materials, and processes, realizing full-link adaptation from wax pattern molding to final casting, and completely solving the core industry pain points of "plaster mold expansion and cracking, residual carbon during calcination, casting sand holes, and easy stone falling during wax setting".

1. In-Depth Exclusive Adaptation with Self-Developed Casting Materials, Wax Pattern Performance Perfectly Matching Casting Requirements

The entire UR Series has undergone full-parameter closed-loop optimization with our self-developed high-wax-content white wax resins such as CW2000. Each equipment is pre-stored with an exclusive printing parameter package before leaving the factory, and users can achieve the best printing effect with one click, without the problem of "mismatch between equipment and materials", ensuring the casting performance of the wax pattern from the source:

Exclusive Optimization of High-Wax-Content Formula: The wax content of CW2000 resin is as high as more than 60%, which is much higher than the 20%-30% wax content of ordinary casting resins in the industry. The higher the wax content, the closer the casting performance is to the traditional manual wax pattern, and the stronger the compatibility with the existing casting process. Through the exclusive curing process of the UR Series, the printed wax pattern has both the high strength of resin and the easy dewaxing characteristics of casting wax. After curing, the thermal expansion coefficient is completely consistent with the imported blue wax and green wax commonly used in the jewelry industry.

Wax Pattern Physical Properties Optimized for Jewelry Processes: The wax pattern printed by the UR Series has a Shore D hardness of 85±2, a flexural strength of ≥45MPa, and an impact strength of ≥2.5kJ/m². It has sufficient hardness to avoid deformation during wax tree planting and plaster pouring; it also has sufficient toughness to avoid edge chipping and stone falling during mold trimming and wax setting. Micro-setting operations can be directly completed on the wax pattern, and the stone setting firmness is far higher than the industry standard. The wax setting success rate is increased from 70% of ordinary equipment to more than 99%, which greatly simplifies the traditional process of "casting first and then setting stones" and shortens the production cycle.

2. Gradient Decomposition Curing Process, Achieving Zero-Residue Calcination and Eliminating Casting Defects from the Source

The core pain point of jewelry casting is casting defects and precious metal loss caused by resin mold calcination residues. Through the exclusive gradient curing process, the UR Series makes the wax pattern perfectly adapt to the calcination curve of jewelry lost-wax casting, achieving complete combustion with zero residues:

Gradient Thermal Decomposition Design: The wax pattern printed by the UR Series achieves step-by-step decomposition during calcination:

Low-Temperature Dewaxing Stage (150-300℃): The wax component melts and flows out first, forming a honeycomb porous buffer structure in the plaster mold, which reserves sufficient space for the subsequent decomposition and expansion of the resin, completely avoiding the industry common problem of ordinary resin molds expanding and cracking the plaster mold due to direct heating;

High-Temperature Calcination Stage (300-750℃): The resin component is completely decomposed and gasified, and the final ash residue is ≤0.01%, which is much lower than the ash residue of ≥0.1% of ordinary resin molds in the industry. There is no ash or residual carbon, which fundamentally eliminates casting defects such as sand holes, pitting, black spots, and air holes.

Actual Casting Value: The casting yield of the wax pattern printed by the UR Series is stably above 99%, while the casting yield of ordinary equipment in the industry is only 80%-85%. Based on 10kg gold casting, the UR Series can reduce more than 150g of gold rework loss. Only in terms of precious metal loss, it can save the factory tens of thousands of yuan per month.

3. Seamless Compatibility with the Entire Casting Process, Zero Transformation Cost to Connect with Existing Production Lines

Since its design, the UR Series has taken "completely replacing traditional manual wax patterns and seamlessly connecting with existing casting production lines" as the core goal. It can be quickly put into use without any changes to the existing processes of the factory, with zero learning cost and zero transformation cost:

Ultra-Low Curing Shrinkage Rate: The curing shrinkage rate of the wax pattern printed by the UR Series is ≤0.2%, which is much lower than the ≥0.5% of ordinary resin molds in the industry. It can 1:1 restore the digital design size, and the dimensional deviation between the final casting and the design drawing is ≤±0.05mm. The factory does not need to modify the scaling ratio of the 3D drawing, and can directly use the drawing parameters of the traditional manual wax pattern.

Full-Process Process Adaptation: The wax pattern is perfectly compatible with the entire jewelry lost-wax casting process—wax tree planting → plaster pouring → vacuum curing → low-temperature dewaxing → high-temperature calcination → vacuum casting → blasting cleaning. The factory does not need to adjust the existing dewaxing temperature, calcination curve, and casting parameters, and can directly replace the traditional manual wax pattern for use, perfectly adapting to all production lines of small and medium-sized workshops and large-scale factories.

4. Full Coverage of All Jewelry Scenarios, One Machine for Multiple Uses to Maximize Equipment Value

In addition to the core jewelry wax pattern printing, the UR Series can also be compatible with a variety of casting and model materials, covering all jewelry production needs, and truly realizing one machine for multiple uses:

Full-Category Jewelry Casting Adaptation: In addition to conventional K gold, platinum, and silver jewelry, it can also perfectly adapt to high-difficulty casting needs such as ancient gold jewelry, enamel jewelry, high-end micro-setting pieces, complex hollow pieces, ultra-thin wall pieces, and large art ornaments. It solves the pain points of ordinary equipment such as easy breakage of thin-walled wax patterns and insufficient casting of complex pieces.

Multi-Material Compatibility Expansion: In addition to special white wax resin, it is also perfectly compatible with our high-precision green wax, jewelry red wax, ceramic wax, dental model resin and other photopolymerization materials. In addition to jewelry casting, it can also be expanded to multiple scenarios such as dental denture models, silicone mold prototypes, figure toy prototypes, and industrial precision part prototyping, maximizing the utilization rate and return on investment of the equipment.

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