Plate and frame filter paper

Description

I. Core Materials and Manufacturing Process

This industrial oil filter paper is crafted using refined long-staple cotton fibers as its core raw material. It is manufactured via a specialized high-pressure thermal molding process, resulting in tightly interwoven fibers with uniform, precisely controlled pore structures. The material undergoes a multi-stage treatment process—including degreasing, drying, and shaping—to ensure it is free from binders, silicone oils, and other chemical additives. This prevents secondary contamination of industrial oils while significantly enhancing the paper's tensile strength and pressure resistance. Consequently, it is ideally suited for the high-pressure filtration environments typical of industrial oil filtration machines; it resists tearing and prevents oil leakage, ensuring reliable performance.

The product is available in two main series: a standard general-purpose type and a high-pressure thickened type. Both feature uniform thickness, exceptional flatness, and precise, burr-free cutting. They are perfectly compatible with various types of plate-and-frame filter presses, vacuum oil purifiers, and pressure-filtration units. Installation is quick and easy, and the paper fits snugly against the filter plates with no gaps, guaranteeing a sealed, highly efficient filtration process from start to finish.

II. Key Product Advantages

▪ Efficient Impurity Removal and Dehydration—Outstanding Purification Results:** The paper features a dense network of fine pores combined with directional adsorption properties. This allows it to efficiently trap mechanical impurities, metal shavings, and dust particles suspended in the oil, while simultaneously rapidly adsorbing free water and trace colloidal substances. Post-filtration, the oil emerges crystal-clear and transparent, with significantly reduced water and impurity levels. This effectively restores the oil's performance characteristics, thereby extending both the service life of the oil itself and the operational cycles of the associated equipment.

▪ Pressure-Resistant and Burst-Proof—Ideal for Industrial High-Pressure Filtration:** The paper possesses a dense, substantial structure; its wet strength and pressure resistance far exceed those of standard filter papers. It is capable of withstanding the routine operating pressures of industrial oil filtration machines without rupturing, leaking, or shedding fibers during the filtration process. This effectively eliminates the risk of impurities back-flowing to re-contaminate the oil. Highly stable and reliable, it is perfectly suited for continuous, large-batch filtration operations.

▪ Optimized Oil Absorption Rate—Minimizing Oil Loss: Through a precise degreasing treatment, the paper's oil absorption capacity is carefully controlled within an optimal range. This ensures sufficient filtration and adsorption without excessive oil retention that would lead to product waste. By balancing filtration efficacy with operational costs, it effectively meets the economic requirements associated with large-scale industrial oil filtration. 

• Oil-Resistant and Corrosion-Resistant; Wide Range of Applications: Exhibits excellent compatibility with various mineral oils, synthetic lubricants, transformer oils, insulating oils, and similar fluids. It does not undergo chemical reactions with the oils; its performance remains stable over prolonged use, with no instances of softening, dissolution, or shedding of the paper material. It is suitable for a diverse array of industrial oil purification scenarios.

• Comprehensive Specifications; Compatible with Various Equipment: Supports both standard dimensions and custom specifications. It can be precisely matched to different models of plate-and-frame oil filter presses and other oil filtration equipment. The sheets are cut with precision, allowing for direct replacement without the need for additional processing, thereby enhancing overall equipment operational efficiency.

• High Cost-Effectiveness; Reduced Maintenance and Operational Costs: Features a low unit price combined with high filtration efficiency, enabling the recovery and reuse of waste oils and thereby reducing the cost of purchasing new oil. Furthermore, the purified oil effectively minimizes equipment wear and reduces the probability of mechanical failure, indirectly lowering the enterprise's overall equipment maintenance and operational expenses.

III. Product Classification and Key Technical Specifications

(I) Classification by Performance and Application

(II) Common Standard Sizes

Standard Square Sizes: 200×200mm, 250×250mm, 300×300mm, 400×400mm, 500×500mm. 

Special sizes can be customized upon request to perfectly match the filter plate specifications of various industrial oil filtration machines. 

Standard packaging consists of 100 sheets per pack or 500 sheets per carton, facilitating convenient storage and bulk dispensing.

IV. Key Application Fields and Oil Types

1. Power Industry

Specifically designed for the filtration and purification of insulating oils—such as transformer oil, instrument transformer oil, and switchgear oil—to remove moisture and impurities. This process enhances the oil's insulating properties, ensures the safe and stable operation of power equipment, and prevents insulation-related failures; it serves as a critical consumable for power system operation and maintenance.

2. Machinery Manufacturing and Processing Industry

Suitable for filtering various machine tool lubricants, hydraulic oils, guide rail oils, and gear oils. It removes metal shavings and dust impurities, thereby extending the service life of both the lubricants and the machine tools, ensuring processing precision, and reducing the frequency of downtime for maintenance.

3. Metallurgy, Mining, and Chemical Industries

Used for the circulating filtration of hydraulic oils and lubrication system oils in various industrial equipment, as well as for the recovery and regeneration of waste oils. This enables the reuse of oil products, reduces corporate production costs, and is ideally suited for industrial environments involving heavy loads and continuous operation.

4. Automotive Manufacturing and Marine Maintenance Industries

Employed for the purification and filtration of lubricants in automotive production equipment, marine engine oils, and hydraulic system oils, ensuring the normal operation of large-scale machinery. It is also suitable for the recovery and filtration of waste engine oil in the automotive repair sector, facilitating resource recycling.

5. Other Industrial Scenarios

Used for filtering the lubricating greases and oils in various devices—such as reducers, compressors, and fans—as well as for the preliminary impurity removal in non-edible industrial oils (e.g., in edible oil plants) and diesel fuel. The scope of application covers the purification of a comprehensive range of industrial oils.

V. Precautions for Use

• Before use, select the oil filter paper with the specifications corresponding to the specific oil filtration machine model and filter plate dimensions. Ensure that the paper fits the filter plate perfectly—without wrinkles or misalignment—to prevent gaps that could lead to ineffective filtration or oil leakage. 

• For high-pressure filtration applications, it is imperative to select high-pressure, extra-thick filter paper. Substituting this with standard-type paper is strictly prohibited, as excessive pressure could cause the paper to rupture, compromising filtration effectiveness and potentially damaging the equipment.

• Prior to filtration, clean any impurities from the oil filter press plates to prevent sharp debris from tearing the filter paper. During filtration, if you observe a sudden drop in oil output flow or an abnormal rise in pressure, immediately replace the paper with a fresh sheet to maintain filtration efficiency.

• This product is designed exclusively for the filtration of industrial oils. It is strictly prohibited for use with non-oil substances—such as food products, drinking water, or chemical reagents—and must not be used as a substitute for laboratory-grade qualitative or quantitative filter paper.

• Store the product in a dry, well-ventilated, and cool environment, keeping it away from open flames, water sources, and corrosive gases. Avoid exposure to moisture or direct sunlight; moisture degrades the paper's tensile strength, making it prone to tearing and compromising its performance.

• Used filter paper contaminated with waste oil must be disposed of properly in accordance with industrial solid waste management regulations. It must not be discarded indiscriminately, ensuring full compliance with environmental protection standards.

VI. Selection and Purchasing Recommendations

For standard low-pressure plate-and-frame oil filter presses or for general impurity removal in ordinary lubricating oils, standard-type industrial filter paper is sufficient to meet requirements and offers superior cost-effectiveness.

For applications involving the purification of transformer insulating oil, high-pressure filtration operations, or the deep filtration of oils used in precision machinery, prioritize the selection of the high-pressure, extra-thick type to ensure filtration stability and operational safety. 

Regarding dimensions, prioritize selecting sizes that match your equipment's standard specifications; for non-standard equipment, please contact the manufacturer to request custom sizing. Purchasing in bulk is generally more cost-effective.

Product Summary

Industrial oil filter paper is a cost-effective, specialized consumable designed for the purification of industrial oils. Leveraging core strengths such as exceptional pressure and burst resistance, highly efficient impurity removal and dehydration, and broad compatibility, it effectively resolves common issues associated with industrial oils—specifically high impurity levels and excessive water content. By helping enterprises reduce costs, enhance operational efficiency, and extend equipment service life, this product meets the diverse filtration and regeneration requirements of industrial oils across all sectors.