Porous Alumina Ceramic Cup, 35% Porosity, Vacuum Airtight, Soil Water Tensiometer

• Customization: Available
• Application: Ceramic Decorations, Structure Ceramic
• Ceramic Tube & Rod: Porous Ceramic
• Model NO.: HKCF-57
• Length: Customized
• Temperature Resistance: Customized
• Surface: Smooth
• Size: Customized
• Color: White
• Shape: Customized
• Feature: Sustainable, Stocked
• Density: 1.6-2.0 G/Cm³
• Drawings: Yes
• Open Porosity Rate: 30-40%
• Porosity Rate: 40-50%
• Water Absorption: 25-40%
• Pore Size: 1-5 μm
• Key Words: Microporous Alumina Cup
• Key Words2: Soil Water Tensiometer
• Key Words3: Vacuum Airtight Ceramic Cup
• Packing: Neutral Packing
• Transport Package: Safe Package
• Specification: Customized
• Trademark: HIGHBORN
• Origin: Jiangsu China
• Production Capacity: 20000 PCS/Month

Product Description

Product Description

Microporous Alumina Cup

This high-purity porous alumina ceramic cup is precision-engineered as a core component for soil water tensiometers. Featuring a strictly controlled 35% porosity, it delivers optimal water permeability and ensures reliable vacuum airtight performance. The bulbous head and cylindrical body design provide a secure fit and excellent durability in various soil conditions. Ideal for agricultural irrigation monitoring, environmental research, and laboratory use. Custom sizes and OEM solutions are available.

Soil Water Tensiometer

Premium Material: Made of high-purity alumina ceramic for superior chemical stability and long service life.

Precise Porosity: Engineered with 35% porosity to guarantee accurate soil water potential readings.

Vacuum Airtight: Designed to maintain airtight integrity under vacuum conditions.

Optimized Structure: Smooth bulbous head with a slotted cylindrical base for easy installation and sealing.

Vacuum Sealing Reliability: Every cup is tested to ensure excellent airtight performance under vacuum conditions, giving you dependable field results.

Customization Available: We offer non-standard sizes, different porosity levels, and OEM packaging to meet your specific tensiometer design and application needs.

Vacuum Airtight Ceramic Cup

Our porous alumina ceramic cup is a critical sensing component for soil water tensiometers. It is manufactured from high-purity alumina and engineered with a precise 35% porosity, ensuring stable water exchange and accurate soil water potential readings. The cup is designed to maintain vacuum airtight integrity under negative pressure, preventing air leakage while allowing water to pass through the ceramic wall freely. With a smooth bulbous head and slotted cylindrical base, it fits perfectly into tensiometer tubes and supports custom sizing for different soil depths and monitoring systems.

Professional Ceramic Manufacturer: We specialize in advanced porous ceramic components, ensuring material purity and consistent quality across every batch.

Precise Porosity Control: Our production process strictly controls pore size and porosity, so each cup delivers stable and repeatable measurement performance.

Competitive Factory Price & Fast Delivery: Direct factory supply means better pricing and shorter lead times, whether you order a small trial batch or large volume.

Technical Specifications

(Custom configurations available upon request.)

Item	Infiltration Cup	Plant Water Absorbing Wick	Electrode Wick	Ceramic Wick	Aerator plate/tube	Scented Ceramic		Vacumm Ceramic Chunk	Porous Ceramic for water and gas treatment
						White Alumina	Silicon Carbide
Density	1.6-2.0g/cm³	0.8-1.2g/cm³	1.8-2.2g/cm³	0.8-1.2g/cm³	2.5-2.6g/cm³	1.6-2.0g/cm³	1.7-2.0g/cm³	2.8-3.2g/cm³	2.6-3.0g/cm³
Open Porosity Rate	30-40%	50-60%	20-30%	40-60%	30-35%	30-45%	35-40%	NA	NA
Porosity Rate	40-50%	60-75%	25-40%	60-75%	35-36%	40-50%	40-45%	30-40%	30-40%
Water Absorption	25-40%	40-70%	10-28%	40-70%	20-23%	25-40%	25-35%	NA	NA
Pore Size	1-5μm	1-3μm	1-3μm	1-3μm	1-3μm	1-5μm	1-10μm	2-50μm	20-80μm

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Reliable Fragile Product Packaging & Comprehensive Shipping Protection

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R&D Strength & Mature Project Experience

Independent R&D Innovation + Verified Similar Overseas Project Cases

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Stable Capacity & Fair Pricing

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Full-Cycle Service & Long-Term Trusted Partner

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FAQ

Q1: Can you provide exclusive customized solutions for special project demands? 
A1: Yes. In addition to conventional OEM and ODM customization, we can develop exclusive product structures, adjust technical parameters and optimize solutions according to special project standards, regional industry specifications and personalized buyer requirements, providing one-to-one customized technical support.
 
Q2: Do you support third-party factory inspection and product random testing? 
A2: We support on-site factory audit and offline random inspection by buyers or authoritative third-party institutions. Our standardized production process, complete quality records and standardized management system can comply with mainstream international factory inspection standards.
 
Q3: How do you ensure on-time delivery for bulk orders? 
A3: We have a scientific production scheduling system and sufficient material reserve chain. According to order quantity and delivery cycle, we will formulate a detailed production plan, arrange special personnel to track progress in real time, and effectively avoid delivery delays to ensure stable and punctual shipment of bulk and urgent orders.
 
Q4: Why is your factory price more stable than trading companies? 
A4: As a direct manufacturer, we control all links from raw material procurement, production processing to finished product output. There is no intermediate markup, and we can adjust costs according to long-term cooperative orders, maintaining stable and transparent pricing for long-term strategic partners.
 
Q5: What customized service items can you support besides product structure? 
A5: Besides structural size and precision tolerance customization of industrial ceramic and quartz products, we support personalized services including custom deep processing, surface treatment, laser marking, custom packaging and technical document customization to meet different industrial and brand standards.