Core Definition
Six-lug chuck high-temperature filter cartridges are an upgraded version of three-lug chuck filters. Equipped with a six-lug chuck as the mounting interface, they feature more clamping lugs for firmer locking. Specially designed for large-scale high-temperature metal 3D printing equipment and high-wind-pressure high-temperature filtration systems, they are mainly applied to high-temperature printing working conditions of large-size machines such as high-temperature version EOS M400-4 and SLM 800.
This product adopts high-temperature resistant glass fiber or ceramic fiber filter media, matched with an all-stainless steel frame and high-temperature resistant sealing system. It supports continuous operating temperatures of 200–260℃ and instantaneous temperature resistance up to 300℃, and meets H13-H14 filtration grades in compliance with EN 1822 standard. The stable locking design of six-lug chucks can withstand stress changes caused by thermal expansion and contraction at high temperatures to guarantee reliable installation.
Core Technical Advantages
Stable locking with six-lug chuck: Six evenly distributed clamping lugs deliver balanced locking force, which can bear stress changes from thermal expansion/contraction and high differential pressure impact under high temperatures to prevent loosening during long-term operation.
Wide-temperature-range high-temperature filter media: High-temperature resistant glass fiber (200℃) or ceramic fiber (260℃) media are available to maintain intact structure and stable filtration efficiency at high heat. PTFE membrane coating is optional to boost surface filtration performance.
All-stainless steel high-temperature resistant construction: Inner frames, outer protective meshes and end caps are all made of 304 or 316L stainless steel with excellent resistance to high-temperature oxidation and corrosion. The thermal expansion coefficient of stainless steel matches that of filter media, avoiding media tearing caused by deformation discrepancy at high temperatures.
Multi-layer high-temperature resistant sealing: End cap sealing rings adopt fluoroelastomer (200℃) or graphite/metal seals (300℃), together with high-temperature sealant to ensure reliable air tightness under high-temperature working conditions.
High-temperature hot melt adhesive bonding: High-temperature resistant epoxy resin or inorganic ceramic adhesive is used for bonding, with no debonding or cracking after long-term operation at 200℃.
Working Condition Matching Table
| Applicable Equipment | Operating Temperature | Filtration Grade | Media Type | Recommended Replacement Cycle |
| High-Temperature Version EOS M400-4 | 150–200℃ | H13/H14 | Glass Fiber / Ceramic Fiber | 1500–2500 h |
| High-Temperature Version SLM 800 | 150–220℃ | H13/H14 | Ceramic Fiber | 1500–2000 h |
| Large-Size EBM Equipment | 180–250℃ | H13 | Ceramic Fiber | 1000–1500 h |
| Central High-Temperature Exhaust System | 150–200℃ | H13 | Glass Fiber | Based on Differential Pressure |
Application Fields
Large High-Temperature Metal 3D Printing Equipment
Ultra-High-Temperature Printing Materials
High-melting-point metals such as tungsten, molybdenum and tantalum
High-temperature alloys (Inconel 939, Inconel 718)
Ceramic-metal composite powders
Mass production of aerospace high-temperature components
Case & Data Verification
Case: Application of Six-Lug Chuck High-Temperature Filter Cartridges on SLM 800 in an Aeroengine Manufacturer
An aeroengine manufacturer adopted high-temperature version SLM 800 equipment to print Inconel 939 nickel-based alloy blades with a chamber operating temperature of 180℃. Six-lug chuck ceramic fiber high-temperature filter cartridges of H13 grade were deployed. Inspection after 1800 hours of continuous operation showed intact cartridge structure with filtration efficiency maintained above 99.95%, and the printed parts passed aerospace certification. The six-lug chuck achieved stable locking without high-temperature deformation.
FAQ
Q1: Are six-lug chuck and three-lug chuck high-temperature filter cartridges interchangeable?
A: No. Six-lug chucks usually have larger diameters, different lug quantities and distribution angles, so they cannot be swapped. Confirm equipment interface specifications and temperature requirements before ordering.
Q2: How to choose between ceramic fiber and glass fiber filter media?
A: Glass fiber withstands 200–260℃ with high cost performance, suitable for most high-temperature working conditions; ceramic fiber resists temperatures above 600℃ and delivers excellent thermal shock resistance, ideal for ultra-high-temperature scenarios such as EBM equipment.
Q3: How to calculate the service life of high-temperature filter cartridges?
A: Service life mainly depends on operating temperature, printing materials and differential pressure variation. High temperatures accelerate media aging. It is recommended to monitor differential pressure; replace the cartridge when the pressure drop doubles the initial value even if the service hour cycle is not reached.
Q4: How to verify the sealing performance after installing high-temperature filter cartridges?
A: PAO leak testing under 150–200℃ working conditions is recommended after installation to verify favorable sealing performance of seals at high heat. Cold-state leak test results cannot fully represent high-temperature tightness.
