Low price means little if slot width, weld strength, or surface condition changes from batch to batch. Industrial buyers therefore look for suppliers that control profile-wire production, screen welding, fabrication, and inspection under one system. Tianjin Jingzhou Metal Products Co., Ltd. (Jingzhou Metal) is a useful example of this integrated manufacturing model.
Wedge Wire Screen Operating Principle
A wedge wire screen uses parallel V-shaped surface wires and perpendicular support rods. Resistance welding joins the contact points and forms continuous slots. The slot narrows at the process side and widens toward discharge, helping particles pass without lodging deep inside.
Performance still depends on slot opening, profile geometry, support spacing, alloy, flow direction, and load. Buyers should define these items on the approved drawing.
Choose the Right Screen Form
Flat panels suit support grids, vibrating screens, and general separation. Curved screens handle dewatering and slurry classification. Tubes, baskets, and nozzles manage radial flow in wells, process filters, and underdrains.
A reliable drawing should state dimensions, flow direction, connection details, support structure, and target slot opening so the manufacturer can design around pressure, wear, and installation loads.
Critical Wedge Wire Screen Specifications
A useful RFQ includes the process medium, particle data, flow, temperature, differential pressure, corrosion risk, cleaning method, dimensions, connections, and inspection requirements. Nominal slot size alone cannot define separation because particle shape, solids concentration, open area, and flow conditions also affect the result.
Match Slot, Profile, and Material
Jingzhou Metal supplies slot openings from 0.02 to 5 mm, lengths up to 6,000 mm, and widths from 25 to 1,200 mm. Its in-house profile-wire capability lets engineers coordinate V-wire shape, support profile, slot target, and screen drawing instead of relying only on standard catalogue sizes.
304 and 304L suit many general duties; 316 and 316L provide stronger resistance in chloride-bearing conditions. Severe service may require higher-alloy grades. Buyers should also define measurable surface roughness separately from polishing, pickling, passivation, or electropolishing.
| Application | Typical Form | Main Buying Concern |
| Water treatment | Panel, tube, nozzle | Flow capacity, head loss, backwashing |
| Mining | Curved panel, basket | Wear, open area, structural load |
| Oil and gas | Screen tube | Alloy, slot control, collapse resistance |
| Food processing | Flat or curved screen | Surface roughness, cleanability, documentation |
Manufacturing Capability: Control the Process
Jingzhou Metal manages profile-wire production from wire rod through cold drawing, annealing, shaped rolling, secondary annealing, and fine drawing, then links that work to screen welding, fabrication, and inspection. This in-house chain gives engineers more control over profile geometry and repeat-order consistency.
ISO 9001 Applied to Daily Production
Jingzhou Metal holds ISO 9001:2015 quality management system certification and National High-Tech Enterprise status. The company applies ISO 9001 requirements throughout production, from material selection and process control to inspection and product release. This makes the certification part of daily manufacturing discipline, not simply a supplier-audit document.
Its inspection resources include spectrometer analysis for alloy verification, 1D and 2D projectors for dimensional checks, tensile testing, infrared monitoring across each coil, and ultrasonic inspection. These checks help control material identity, dimensions, mechanical properties, and production consistency.
24 Utility-Model Patents Across the Production Chain
Jingzhou Metal holds 24 utility-model patents covering wire drawing, rolling, winding, welding, and inspection. Examples include a wire-drawing machine with a wire-break alarm, an automatic grinding device for welded joints, a quick-roll-change rolling mill, and a uniform winding device.
Why the Patents Matter in Production
The patents address practical sources of variation. Wire-break monitoring improves drawing control; faster roll changes support stable rolling setup; uniform winding protects coil condition; and automated weld-area grinding improves finishing consistency. Together, these improvements strengthen dimensional and surface-quality control from profile wire to finished screen.
For custom projects, Jingzhou also develops non-standard profiles from drawings or samples, with a stated mold-development cycle of 7 to 15 days.
Inspection and Repeat-Order Consistency
Repeatability matters as much as first-article approval. Jingzhou combines drawing-based specifications with material verification, dimensional inspection, tensile testing, and coil monitoring so later orders can follow the same technical baseline.
What Global Buyers Should Verify
When comparing Chinese wedge wire screen manufacturers, ask for the approved drawing, alloy verification, slot-inspection method, weld and fabrication scope, packing standard, and acceptance criteria. Also check whether the supplier produces critical profile wire in-house.
For projects where slot consistency, surface quality, and repeat orders affect operating cost, integrated production, ISO-based process control, patented manufacturing improvements, and measurable inspection capability provide stronger value than a low quotation alone.
FAQ
Q1: Does ISO 9001 certification guarantee screen quality?
A: It provides a management framework. Buyers should still review how the factory controls materials, dimensions, welding, inspection, and nonconforming product.
Q2: Why do patents matter?
A: Relevant patents show where a manufacturer has invested in solving recurring production problems. Jingzhou Metal’s 24 utility-model patents cover key steps from drawing to inspection.
Q3: What information should I send for a custom screen?
A: Provide the medium, particle data, flow direction, slot opening, material, dimensions, differential pressure, connections, quantity, and inspection requirements.
Q4: How does Jingzhou Metal support repeat orders?
A: It keeps drawing-based specifications and checks profile dimensions, material grade, mechanical properties, and coil consistency.