Filtration performance is part of equipment design. The component must fit the available envelope, maintain required flow and retention, withstand pressure and vibration, and remain compatible with the process medium.
A catalog filter can meet a nominal size yet fail on slot tolerance, material grade, or cleanability. OEM components are specified against the equipment drawing and operating conditions, so the filter supports the system instead of limiting it.
OEM Filtration Components for Equipment Integration
An OEM component is engineered for a defined interface and duty cycle. The specification normally covers profile geometry, slot opening, support structure, connection details, material grade, dimensional tolerance, and the design pressure differential. These fields give manufacturers a controlled replacement path and repeatable validation.
| Design input | Effect on the filtration assembly |
| Slot opening and tolerance | Controls particle retention, pressure drop, and flow consistency |
| Alloy and service medium | Sets corrosion resistance, temperature capability, and hygiene suitability |
| Profile and support geometry | Determines rigidity, open area, weld load, and cleanability |
| Connection and envelope | Allows the screen, tube, or panel to integrate with the equipment |
Wedge Wire Geometry and Filtration Performance
Wedge wire, also called V-wire or profile wire, uses a triangular cross-section. Profile wires are resistance welded to support rods, creating continuous slots along the screen. The tapered passage presents a defined opening and a wider flow path behind it. That geometry reduces the likelihood of particles lodging at a flat wire intersection and supports backwashing or mechanical cleaning.
A wedge wire assembly is only as accurate as its opening control. The drawing should state nominal slot opening, tolerance, wire height and width, support-rod size, weld pattern, open area, dimensions, and flow direction. Flat panels, curved screens, cylinders, tubes, and nozzles use the same profile principle but require different support and connection designs.
Industrial Applications and Material Selection
Food and beverage equipment uses sanitary profile wire for malt, wort, fruit pulp, and clarification. Water and wastewater systems use flat or cylindrical screens for intake, solids separation, and sand filtration. Oil and gas, mining, and pulp processing impose higher mechanical or chemical loads, so the alloy and support structure must match the medium and pressure differential.
SS304 suits many general industrial duties. SS316 and SS316L provide stronger resistance in chloride-bearing or chemically aggressive service, with 316L commonly selected where welded zones and hygiene requirements matter. SS321 is used when elevated temperature exposure is a controlling factor. Material selection should be confirmed against concentration, temperature, cleaning chemistry, and weld requirements rather than chosen by grade name alone.
Manufacturing and Quality Control at Jingzhou Metal
Jingzhou Metal has produced stainless steel wire since 2009 and develop round, wedge, triangular, square, and other custom profiles for industrial filtration. Our three production bases cover approximately 18,000 square meters and support a company-wide monthly capacity of 1,200 to 1,500 tons. This scale is paired with in-house profile development and mold repair, which helps us keep tooling changes and dimensional feedback within one manufacturing chain.
For a new profile, we begin with wire rod selection and cold drawing to establish a controlled round-wire size. Annealing restores ductility and relieves drawing stress. Shaped rolling forms the triangular, wedge, flat, square, or other specified section. A second anneal conditions the formed wire, and fine drawing brings the profile to the required dimensions and surface condition. Our typical new-product R&D cycle is 7 to 15 days, subject to drawing complexity and sample approval.
Quality control combines spectrometer analysis for alloy verification, infrared monitoring for dimensional variation across a coil, one- and two-dimensional projectors for profile measurement, tensile testing for mechanical performance, and manual visual checks. These controls support production from drawings or samples and provide traceable evidence for material and dimensional approval.
Surface Roughness and Surface Treatment Are Different Specifications
Surface roughness describes measurable micro-topography, commonly reported with Ra or Rz. Surface finish describes the specified condition of that surface, such as a drawn or polished condition. Surface treatment is a separate process that changes surface chemistry or function.
A drawing may require the supplier to pickle, passivate, or electropolish a component after forming. The resulting product should then be described as pickled, passivated, or electropolished, with the process and acceptance criteria stated separately from the roughness value.
FAQ
What should an OEM filtration drawing include?
State the alloy, profile dimensions, nominal slot and tolerance, support-rod arrangement, screen form, connection details, flow direction, surface roughness, any surface treatment, inspection requirements, and quantity.
How does Jingzhou Metal support a new profile?
We can review a CAD drawing or sample, develop the forming route and tooling, produce a sample, and confirm critical dimensions before batch production. The review determines the tolerance and testing plan.
How is material traceability checked?
We verify alloy composition with spectrometer analysis and connect the result with the production and inspection records. Dimensional, tensile, infrared, and visual checks are then applied according to the product specification.
When should 316L replace 304?
316L is generally considered when chloride exposure, welded construction, or stricter hygiene and corrosion requirements exceed the practical range of SS304. Choose with medium and temperature data.
Can surface roughness be specified without naming a treatment?
Yes. Ra or Rz can be specified as a measurable requirement. Pickling, passivation, electropolishing, or another treatment should be listed as a separate process requirement.