Procuring equipment from a direct bag filter housing factory ensures absolute control over manufacturing tolerances, metallurgical integrity, and design adaptations. Macrokun functions as a premier vertical company factory and global company supplier, specializing in high-end, company customizable industrial filtration vessels. By bypassing traditional brokers, Macrokun delivers heavy-duty single and multi-bag systems tailored specifically to your plant’s flow dynamics, helping you minimize pressure drops, eliminate fluid bypass, and maximize your system’s operational lifespan.
In large-scale fluid processing, procurement teams often default to commercial distributors. However, when dealing with structural pressure vessels like bag filter housings, purchasing directly from a production facility offers distinct advantages. A dedicated company factory controls every stage of fabrication—from CNC raw plate cutting and precision automatic TIG welding to final hydro-testing and surface passivation.
When you coordinate directly with a manufacturing facility rather than an intermediary broker, engineering details are never lost in translation. If your pipeline demands non-standard nozzle spacing, heavy-duty wall reinforcements, or precise alloy configurations, a direct factory can instantly implement these adjustments on the production floor. This direct line of production drastically reduces manufacturing lead times, guarantees 100% material traceability, and delivers substantial cost savings by eliminating distributor markups.
A world-class filtration vessel relies on rigorous manufacturing protocols. High-performance liquid filtration demands that housings withstand continuous hydraulic pressure, mechanical vibration, and corrosive media.
The structural integrity of a filter housing is defined by its welds. Industrial factories employ certified welders utilizing Gas Tungsten Arc Welding (GTAW/TIG) and Submerged Arc Welding (SAW) technologies. Ensuring deep weld penetration and eliminating micro-porosity prevents stress-corrosion cracking along the seams under high-pressure cycles.
A major issue with low-grade housings is fluid bypass, where unfiltered liquid slips around the filter bag collar. A premium factory resolves this through precision machining of the interior bag seat. Using heavy-duty hold-down assemblies paired with custom elastomers ensures an airtight seal, maintaining optimal pressure thresholds:
Minimizing internal flow turbulence keeps the clean housing pressure drop ($\Delta P_{\text{housing}}$) exceptionally low, which directly reduces energy consumption across your feed pumps.
Raw stainless steel requires meticulous post-weld treatment. Factories utilize acid pickling and chemical passivation loops to strip away free iron particles embedded during machining. This process restores the chromium oxide protective layer, preventing premature pitting when the vessel is exposed to harsh chemicals or saline environments.
Macrokun bridges the gap between raw manufacturing capability and global logistics. Operating simultaneously as an advanced company factory and an international company supplier, we provide industrial operations with robust, highly dependable equipment built to withstand demanding chemical and mechanical environments.
[Raw Stainless Steel] ➔ [CNC Cutting & Machining] ➔ [Certified TIG Welding] ➔ [Hydrostatic Testing] ➔ [Macrokun Factory Passivation]
Our factory floors are engineered for flexibility. We understand that standard catalog dimensions rarely match the real-world layouts of complex processing plants. Macrokun offers a broad array of company customizable features tailored to your specific application requirements:
Custom Nozzle Layouts: We can configure side-in/bottom-out, loop-flow, straight-through, or multi-port manifolds to match your pre-existing headers and save on piping installation costs.
Variable Closure Engineering: Choose between heavy-duty swing bolts for high-pressure systems, quick-clamp closures for rapid maintenance, or counter-balanced davit arms for heavy, multi-bag lids.
Advanced Sanitary Polishing: We offer mechanical polishing and advanced electropolishing down to an internal surface roughness profile of $R_a < 1.4\,\mu\text{m}$, essential for sterile food, dairy, and biopharmaceutical processes.
Integrated Multi-Vessel Skids: Our factory can build turnkey duplex or multiplex skid packages, pre-fitted with 3-way valves, pressure sensors, and automated control logic for continuous filtration performance.
The table below outlines the core engineering parameters manufactured daily on the Macrokun factory floor. All specifications can be modified through our custom production pipelines.
| Vessel Series Type | Bag Capacity | Max Volumetric Flow (m3/h) | Metallurgical Options | Max Hydro-Test Pressure (Bar) | Standard Inlet/Outlet Profiles |
| Single-Bag (Size 01 / 02) | 1 Bag | 20 – 45 | SS304, SS316L, Hastelloy | 15 / 24 | 1.5″ – 3″ ANSI Flange / NPT Thread |
| Mini-Bag (Size 03 / 04) | 1 Bag | 6 – 12 | SS304, SS316L | 10 / 15 | 1″ – 1.5″ Male Thread / Tri-Clamp |
| Multi-Bag (Mid-Capacity) | 2 – 4 Bags | 80 – 180 | SS304, SS316L, Carbon Steel | 15 / 24 | 3″ – 6″ ASME Flange / DIN Flange |
| Multi-Bag (High-Capacity) | 5 – 12+ Bags | 220 – 500+ | SS304, SS316L, Duplex SS | 15 / 24 / 30 | 6″ – 12″ ANSI Flange |
| Sanitary Ultra-Pure | 1 Bag | 15 – 40 | Low-Carbon SS316L | 10 / 15 | Sanitary Tri-Clamp (Ferrule Type) |
The Operational Problem: A heavy industrial wastewater plant experienced frequent pressure surges that caused standard commercial-grade multi-bag housings to warp along the top flange, leading to hazardous fluid leaks.
The Macrokun Solution: Macrokun acted as their technical company supplier, fabricating a heavy-walled, company customizable 4-bag filter housing directly in our company factory. We reinforced the upper flange ring and integrated a heavy-duty swing-bolt closure system, allowing the unit to handle continuous hydraulic shocks up to 16 Bar without structural fatigue.
The Operational Problem: A chemical manufacturer needed to filter highly viscous acrylic resins at elevated temperatures ($>120^\circ\text{C}$). Standard housings caused the resin to cool down and solidify inside the chamber, completely blinding the filter media.
The Macrokun Solution: Our factory engineered a custom jacketed multi-bag filter housing. The specialized outer thermal jacket allows high-temperature steam to circulate around the inner chamber, keeping the resins fluid. This custom design successfully eliminated unplanned maintenance shutdowns.
The Operational Problem: A global soft drink manufacturer needed a primary filtration vessel that met strict hygienic guidelines, requiring zero internal crevices where microbial biofilm could accumulate.
The Macrokun Solution: Macrokun produced a sanitary single-bag housing featuring an ultra-smooth internal electropolish ($R_a < 1.4\,\mu\text{m}$) and an inverted dome bottom for complete drainage. This custom configuration fit perfectly within their automated Clean-In-Place (CIP) sanitization lines.
Working directly with a company factory like Macrokun gives you complete material transparency, direct engineering support, and access to automated quality testing. It also eliminates middleman markups and allows you to easily customize the housing dimensions, nozzle locations, and surface finishes to match your exact setup.
Our factory subjects every bag filter housing to rigorous non-destructive testing (NDT). This includes dye penetrant testing on structural welds and a mandatory hydrostatic pressure test at 1.3 to 1.5 times the maximum rated operating pressure to guarantee zero leakage and absolute safety under load.
We offer complete design flexibility. We can modify inlet and outlet nozzle sizes, change orientation styles, add specialized chemical-resistant linings (such as PTFE or Halar), and build custom dual-vessel skid structures with manual or automated diversion valves for non-stop filtration.
Yes. Our factory designs and builds vessels according to standard global sizing conventions (including Sizes 01, 02, 03, and 04). This ensures that standard snap-ring, plastic-flange, or steel-ring filter bags from any reputable manufacturer will fit securely with zero bypass.
By managing the entire production process in-house, Macrokun keeps lead times highly efficient. Standard single-bag housings with minor modifications typically ship within 2 to 3 weeks, while large, engineered-to-order multi-bag systems or automated duplex assemblies are ready for delivery in 4 to 6 weeks.
Pre: How Do You Select the Right Bag Filter Housing Supplier to Secure Your Industrial Supply Chain?
MACROKUN has established long-term and stable cooperative relations with many transportation companies such as China Post, DHL, FEDEX, USPS, UPS, etc. Of course, MACROKUN can also provide air and sea transportation. The powerful logistics system enables all MACROKUN'S Printing Mesh, Filter Mesh and Filter Bags and so on to be easily and efficiently transported to any place. For quotes and inquiries, please email our sales team.
