In-depth Analysis: Core Technologies of Jewelry 3D Printers and Their Industrial Applications

2026-01-06

I. Two major technological schools of 3D printers for jewelry and accessories: White wax machine and Red wax machine

At present, the mainstream 3D printing technologies for jewelry and accessories in the industry mainly include DLP (Digital Light Processing) continuous light curing type and MJP (Melt Jet Printing) wax spraying type.

1.DLP continuous light curing type (the current mainstream)

DLP (Digital Light Processing) technology is currently the mainstream in the jewelry industry. It uses a light source to solidify the resin, and its core lies in the ultimate control of "light" and "film".
These machines are renowned for their high efficiency and excellent surface smoothness. Their core components include:

DLP optical engine (the core of the core): Composed of a DMD chip and UV light source. The DMD chip integrates millions of mirrors to control the formation of precise patterns with ultraviolet light; while the 385nm/405nm UV-LED array provides long-lasting and stable curing energy.
Oxygen-permeable release film system: This is a landmark innovation of DLP technology. By creating an "oxygen-free zone", it achieves non-release force separation, significantly increasing the printing speed and eliminating surface scratches.
Precise Z-axis system: Utilizing high-precision ball screws and linear guides, it ensures positioning accuracy down to the micrometer level, which is the key to eliminating layer patterns.

2. MJP Spray Wax Type (Direct Molding)

These machines spray the molten wax material directly through the nozzles:

High-precision wax printing head: Equipped with a micro-droplet nozzle array, with a resolution of up to 16 micrometers.
Complex material supply system: A heating box and insulation pipes are required to ensure that the wax material remains fluid during transportation.

Core Component Comparison Table

Feature	DLP Continuous Light Curing (Recommended)	MJP Wax Jetting Type
Core Engine	DLP Optical Engine	Wax Jetting Print Head
Separation Tech	Oxygen-Permeable Release Film (Seamless Separation)	Mechanical or Natural Cooling Separation
Printing Speed	Ultra-high (Continuous Growth)	Medium (Layer-by-layer Jetting)
Surface Quality	Ultra-smooth (No release marks)	High (With micro-droplet accumulation lines)

II. Navigation Precision Manufacturing: Totustec 4KL250UR

After understanding the above core technologies, you will find that the 4KL250UR industrial-grade white wax 3D printer launched by Totustec is precisely a benchmark in the industry, built based on the most advanced DLP (Digital Light Processing) continuous light curing technology.

Why is 4KL250UR your ideal choice?

The 4KL250UR is the latest large-format continuous printing DLP-3D printer with a super-large forming space, high precision and excellent surface quality.

Top-tier 4K optical engine: Equipped with an industrial-grade 4K high-definition DLP projection system, it perfectly reproduces the details of the model. Whether it's extremely fine flower wire inlay or complex integrated chains, the 4KL250UR can ensure every detail is presented clearly.

Innovative oxygen-permeable release technology: We have adopted an advanced oxygen-permeable membrane system, enabling true continuous printing. This means you can achieve a shorter delivery cycle (Short Delivery Cycle) and a smoother surface finish of the final product.

Perfect material compatibility: In conjunction with the professional resin series showcased in the video, the 4KL250UR demonstrates remarkable versatility:

Casting White Wax: Suitable for chain products with high smoothness requirements.
Casting Red/Green Wax： High-end exquisite jewelry with meticulous detail restoration.
Cera Wax： Adaptive to high-temperature silicone mold-making, replacing the traditional copper plate process.

Intelligent temperature control: A built-in high-precision temperature control system is incorporated to ensure that the resin operates at the optimal viscosity, regardless of environmental temperature variations. The printing success rate is nearly 100%.

🌐 Launch your digital jewelry factory

Totustec is dedicated to providing the most professional 3D printing solutions for global jewelry merchants. From equipment to materials, we assist you in achieving a seamless transition from design to casting.

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