Larox Filter Plate

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Larox filter plates are engineered components for Metso Larox® automatic pressure filters, available in stainless steel and polypropylene with filtration areas per plate of 0.9 to 6.0 m² depending on the filter model. Plate sizes include 900 x 1750mm, 1050 x 2400mm, and 1500 x 4010mm for PF 1.6, 15, and 48/60 series respectively. Chamber depths range from 30 to 75mm. Available in PF 1.6, 12, 15, 48, and 60 Series with polypropylene plates available from size 6.3 m² and up. Suitable for mining, mineral processing, and industrial wastewater applications.
Description

Table of Contents

Larox Filter Plate

PRIMARY USES

1. High-Performance Filtration in Mining and Industrial Processes
Primary Use: Filter plates are the core components of Larox® automatic pressure filters, used for solid-liquid separation in mining, mineral processing, and industrial applications. Essential for dewatering concentrates, tailings, and other process slurries to recover valuable solids and produce clean water.
How it helps: For process engineers and plant operators, Larox filter plates are designed for long life and corrosion resistance, with each chamber having its own filtration area on both sides for maximum efficiency. Polypropylene filter plates are available for Larox PF 1.6, 12, and 15 filters, while steel plates are also offered for demanding applications. Metso’s plastic filter plates are engineered for unmatched reliability in corrosive environments, with a one-piece plate body supported by a stainless steel frame for lightweight durability and corrosion resistance.
2. Advanced Technologies for Durability and Performance
Primary Use: Larox filter plates feature specialised sealing components, diaphragms, and vats that work together for optimal filtration performance.
How it helps: Sealing flats are filter plate components that ensure the perfect sealing of the filter chamber, manufactured from high-quality materials able to withstand compression for tens of thousands of cycles while retaining their shape. The pressing diaphragm compresses the cake through diaphragm pressing, transforming the force of pressing air or water into mechanical pressing while protecting the plate against corrosion and forming a sealing frame. The filter vats are engineered for wear and creeping resistance with plastic material selection optimised for molecular weight and polymer properties to prolong lifetime in demanding mining applications.

SECONDARY USES

1. High-Temperature and Chemical Applications: Plastic plates are the ideal choice for small and mid-size PF filters in industrial applications with highly corrosive chemical composition of slurries, with a temperature range up to 90°C and FDA & Chemi range for industrial filtration.
2. Replacement Solutions: Custom manufactured polypropylene filter plates are available to replace original stainless steel plates in vertical tower presses, offering cost-effective alternatives with highly efficient drainage surfaces to improve cloth life and performance.
3. Specialised Filtering: The Larox CC plate family includes Red and Orange ceramic filter plates designed for different applications, with Red plates featuring a monolithic membrane structure for high capacity, and Orange plates with a special fluorine-resisting formula for challenging environments emphasizing low cake moisture.
About brand
Larox is a trusted brand specializing in industrial filtration and slurry handling solutions for the mining, chemical, and process industries. Renowned for its pressure filters, filter presses, pumps, and filtration technologies, Larox products deliver efficient dewatering, reliable performance, and reduced operating costs in demanding industrial applications.
KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

  • Device Type: Filter plate; not a medical device.
  • Brand: Larox (by Metso)
  • Main Configurations: Stainless steel plates, polypropylene plates, membrane plates, ceramic plates (CC Red and Orange series)
  • Plate Sizes: PF 1.6 Series: 900 x 1750mm; PF 15 Series: 1050 x 2400mm; PF 48/60 Series: 1500 x 4010mm
  • Filtration Area per Plate: PF 1.6/12 Series: 1.6 m²; PF 15 Series: 2.5 m²; PF-DS Series: 4.7 m² (double-sided); PF 48/60 Series: 6.0 m²
  • Chamber Depths: 30, 33, 40, 45, 60, and 75mm depending on model and application

2. TECHNICAL & PERFORMANCE PROPERTIES

  • Primary Action: Solid-liquid separation via pressure filtration.
  • Plate Construction: One-piece polypropylene body with stainless steel support frame for plastic plates; stainless steel plates for heavy-duty applications
  • Plate Connections: Cloth rollers and bearings designed for heavy-duty service and low maintenance
  • Maximum Pressure: Up to 16 bar depending on plate type and design
  • Membrane/Diaphragm: Available in a wide range of elastomers to suit different slurry conditions and process requirements

3. PHYSICAL & OPERATIONAL PROPERTIES

  • Filter Series: PF 1.6 (up to 12.6 m²), PF 12 (9.5-38 m²), PF 15 (25-60 m²), PF 48 (48-168 m²), PF 60 (60-156 m²), PF-DS
  • Temperature Range: Up to 90°C depending on material selection
  • Compatibility: Compatible with ATEX/Antistatic materials, FDA & Chemi range for industrial filtration
  • Cloth Width: 1.03-1.70m depending on filter model

4. SAFETY & COMPLIANCE ATTRIBUTES

  • Safety Classification: Industrial filtration equipment; standard industrial safety measures apply.
  • OEM Parts: Genuine Larox filter plates ensure guaranteed fit, form, and function with full manufacturer warranty
  • Certification: ATEX/Antistatic materials available for explosive environments
SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

Personal Protective Equipment (PPE): Always wear appropriate PPE, including safety goggles, hard hats, hearing protection, gloves, and steel-toed boots when handling or installing filter plates.
Lockout/Tagout: Always isolate and lock out the filter press from its hydraulic, pneumatic, and electrical power sources before beginning any maintenance or installation work.
Lifting: Use appropriate lifting equipment for heavy plate components. Individual plates may weigh hundreds of kilograms, especially in larger presses.
Chemical Safety: For applications handling aggressive chemicals, material selection should be defined to meet process requirements.
Training requirement: Maintenance personnel must be properly trained on the safe and correct procedures for handling and installing filter plates on the specific Larox filter press model.

2. FIRST AID MEASURES

Eye Exposure: If slurry or chemicals splash into the eyes, flush immediately with plenty of clean water for at least 15 minutes, holding eyelids open. Seek medical attention.
Skin Contact: Remove contaminated clothing. Wash exposed skin with soap and water. If irritation develops or chemical burns occur, seek medical attention.
Inhalation: If chemical fumes or dust are inhaled, move to fresh air. If symptoms persist (coughing, difficulty breathing), seek medical attention.

3. FIRE FIGHTING MEASURES

Flammability: Filter plates (polypropylene) are combustible. Use extinguishing media appropriate for plastic fires.
Extinguishing Media: Use water spray, foam, dry chemical powder, or carbon dioxide (CO₂) for fires involving filter plates.
Fire Response: In the event of a fire, evacuate the area and call emergency services. Use appropriate extinguishers.