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Help Center18-Degree Vacuum Filter Sector Plate, 4mm Thick, Hardened Surface, Customizable Slot Width
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Welcome to Anping County Boli Hardware Wiremesh Products Factory – a trusted manufacturer with over 25 years of experience since 1998. Our 18-Degree Vacuum Filter Sector Plate (4mm thick, hardened surface, customizable slot width) is engineered to deliver superior dewatering performance in rotary vacuum disc filters. Designed for durability and precision, this sector plate ensures efficient separation of solids and liquids across demanding industrial applications. With an annual export value of US$5–10 million and a global footprint spanning North America, Europe, Asia, and beyond, we are committed to providing high-quality, cost-effective filtration solutions. Explore how our sector plate can optimize your process.
Key Features & Benefits
- 18-Degree Angle Design – Optimizes cake discharge and minimizes blinding, enhancing filtration efficiency by up to 15% compared to conventional designs.
- 4mm Thick Construction – Provides exceptional structural integrity, resisting deformation under high vacuum and mechanical stress, ensuring long service life.
- Hardened Surface – Heat-treated to increase surface hardness (HRC 45-50), reducing wear from abrasive slurries and extending operational intervals.
- Customizable Slot Width – Available in slot widths from 0.3mm to 2.0mm to match specific particle sizes and dewatering requirements, allowing tailored performance.
- High Open Area – Precision-punched or laser-cut slots maximize flow capacity while maintaining effective filtration, reducing energy consumption.
- Corrosion Resistance – Optional stainless steel or coated carbon steel variants resist chemical attack, suitable for acidic or alkaline slurries.
- Easy Installation – Designed to fit standard vacuum disc filter sectors (compatible with common OEM models), with pre-drilled mounting holes for quick replacement.
Technical Specifications
| Parameter | Value |
| Material | Carbon steel (Q235) / Stainless steel (304/316L) optional |
| Thickness | 4mm ± 0.2mm |
| Angle | 18 degrees |
| Surface Hardness | HRC 45–50 (after hardening treatment) |
| Slot Width | 0.3mm – 2.0mm (customizable) |
| Open Area | ≥ 35% (depending on slot pattern) |
| Weight (per sector) | Approx. 8–12 kg (size dependent) |
| Operating Temperature | -20°C to 80°C (up to 120°C for SS) |
Detailed Product Description
The 18-Degree Vacuum Filter Sector Plate is a critical component in disc filtration systems used for dewatering slurries in mining (coal, iron ore, copper), chemical processing, wastewater treatment, and food industries. Our sector plate features a precise 18-degree arc that matches the rotational profile of the filter disc, ensuring uniform cake formation and efficient discharge. The 4mm thickness provides robust mechanical strength, resisting bending and cracking under high vacuum pressure (up to 0.08 MPa).
The hardened surface is achieved through a controlled heat treatment process (quenching and tempering), which increases the plate's resistance to abrasive wear from fine particles like silica, clay, or mineral concentrates. This results in a longer service life — typically 2–3 times longer than untreated plates — reducing downtime and replacement costs. The customizable slot width allows you to select the optimal opening for your specific slurry: narrow slots (0.3–0.5mm) for fine particles, wider slots (0.8–2.0mm) for coarse materials, balancing filtration efficiency and throughput.
Manufactured using advanced CNC punching or laser cutting, our sector plates deliver consistent slot geometry with minimal burrs, preventing clogging and ensuring uniform filtrate quality. The plate edges are rounded and deburred for safe handling. Each sector is inspected for dimensional accuracy (tolerance ±0.5mm) and surface hardness before shipment. We also offer corrosion-resistant coatings (e.g., epoxy or galvanizing) for use in aggressive environments. Backed by Anping County Boli's decades of wire mesh expertise, our sector plates are compatible with major filter brands such as Eimco, Peterson, and Dorr-Oliver, or can be custom-made to your drawings.
Why Choose Anping County Boli?
- Since 1998 – Over 25 years of manufacturing excellence in filtration products.
- Global Exporter – Annual export value US$5–10 million, serving markets in North America, South America, Europe, Africa, Asia, and Oceania.
- Port of Shipment – Flexible logistics from Tianjin, Qingdao, Shanghai, Foshan — fast delivery worldwide.
- Quality Control – 100% dimensional inspection and hardness testing on every batch.
- Customization – Slot width, material, coating, and size tailored to your specific filter disc model.
- Competitive Pricing – Direct factory pricing with no middlemen, ensuring cost-effective solutions.
We invite you to contact us for a quote or sample. Our experienced team will help you select the right sector plate for your process. Experience the Boli difference — reliable, durable, and efficient.
Frequently Asked Questions (FAQ)
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Q: What is the typical lifespan of this sector plate?
A: Depending on the abrasiveness of the slurry and operating conditions, the hardened surface provides 1–3 years of service. For highly abrasive minerals, we recommend stainless steel variants with additional hardening. -
Q: Can I get a sample before placing a bulk order?
A: Yes, we offer sample sectors (quantity negotiable) for evaluation. Please contact us with your filter disc specifications. -
Q: How do I determine the correct slot width for my application?
A: The ideal slot width depends on the particle size distribution of your solids. We advise providing a sieve analysis report; our engineers can recommend the optimal width. Typical ranges: 0.3–0.5mm for fine; 0.6–1.0mm for medium; 1.2–2.0mm for coarse. -
Q: Is the plate compatible with my existing vacuum disc filter?
A: Our sector plates are designed to match standard dimensions of common filter brands. We can also manufacture to your exact drawings or dimensions. Please provide the sector radius, arc length, and mounting hole pattern. -
Q: What materials are available? What about corrosion resistance?
A: Standard material is carbon steel (Q235) with hardened surface. Optional stainless steel (304/316L) is available for corrosive or food-grade applications. We also offer epoxy coating or hot-dip galvanizing for enhanced protection. -
Q: What is the minimum order quantity?
A: MOQ is typically 10 pieces for standard sizes. Custom orders may require a higher minimum. Please inquire for details. -
Q: Do you provide any warranty?
A: We offer a 12-month warranty against manufacturing defects. The warranty does not cover normal wear and tear or misuse. -
Q: How long does shipping take?
A: For standard sizes, production takes 15–20 days. Sea freight to major ports (e.g., Los Angeles, Rotterdam, Lagos) typically takes 20–40 days depending on destination. Express shipping (DHL/FedEx) is available for samples.
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