4A Zeolite Molecular Sieve Desiccant for Vehicle | RFQ Sourcing Details
Molecular Sieves · Quote on request
This is a product procurement detail page: check specs, images, category context and related sourcing paths before sending an RFQ.
Product specs
Buyer's Digest
Use this page as a product-first sourcing checkpoint before sending an RFQ. Category: Molecular Sieves. Confirm application fit, capacity, materials, destination, lead time and compliance requirements before comparing suppliers.
Original product description
Product overview This 4A zeolite molecular sieve is an adsorbent desiccant intended for moisture removal in vehicle brake-system applications, including truck air dryers. The listed chemical formula is Na₂O·Al₂O₃·2. SiO₂·4.5H₂O, with an approximate SiO₂-to-Al₂O₃ ratio of 2 and a nominal pore diameter of 4 angstroms.
Available forms and stated performance The product is offered as spheres or pellets. Listed sphere diameters are 1.7–2.5 mm and 3.0–5.0 mm. Pellet options are 1.6 mm and 3.2 mm, also identified as 1/16 inch and 1/8 inch.
Depending on form and size, the stated bulk density is at least 0.66–0.68 g/ml, crushing strength is at least 30–80 N per piece, and the in-grade size ratio is at least 96–98%. The stated static water adsorption is at least 21.5%, water content is no more than 1.5%, and wear ratio is no more than 0.20–0.40%.
Ethylene adsorption is listed at no more than 3.0‰. Packaging and customization Bags, drums, pallets, and airtight packaging are listed as transport options. Package configuration and printed logos can be customized. The listed production capacity is 100,000 metric tons per year.
Procurement questions to confirm The broader product listing references 3A, 4A, 5A, and 13X molecular sieves, but the supplied technical parameters apply specifically to the 4A model.
Buyers should confirm the required molecular-sieve grade, particle form, exact size, test method, batch specification, packaging configuration, and suitability for their particular air-dryer or brake-system design before ordering.
Also confirm required order quantity, sample availability, delivery schedule, storage instructions, and supporting quality documentation.
4A | Applications and Buyer Notes
4A is organized as a sourcing-ready Molecular Sieves reference. The page combines visible product or company data with structured procurement cues so buyers can compare application fit, specifications, quantity, quality requirements and lead-time questions bef
Applications
- Initial shortlist building for related product or supplier options.
- Specification and application fit review before bulk purchasing.
- Category, keyword and detail-page comparison before sending an RFQ.
Key specifications
- Category
- Molecular SievesBased on visible page data; confirm exact value in the RFQ.
- Unit
- setBased on visible page data; confirm exact value in the RFQ.
- Model
- WBK-BKMS001Based on visible page data; confirm exact value in the RFQ.
- Shape
- Sphere or pelletBased on visible page data; confirm exact value in the RFQ.
- Mesh sizes
- 8×12 mesh;4×8 meshBased on visible page data; confirm exact value in the RFQ.
- Pellet sizes
- 1.6 mm (1/16 inch);3.2 mm (1/8 inch)Based on visible page data; confirm exact value in the RFQ.
- Sphere sizes
- 1.7–2.5 mm;3.0–5.0 mmBased on visible page data; confirm exact value in the RFQ.
- Chemical formula
- Na₂O-Al₂O₃-4.5H₂OBased on visible page data; confirm exact value in the RFQ.
Buyer tips
- State quantity range and split-delivery needs before price comparison.
- Add certification, material or inspection standards when they affect acceptance.
- For time-sensitive projects, include target arrival date and destination.
- For special applications, describe operating condition, installation environment and duty cycle.
FAQ
What should buyers confirm first?
Confirm application, specification, quantity, destination and lead-time requirements before comparing offers.
Can buyers inquire when specs are incomplete?
Yes. Add model, material, size, use case and inspection needs in the RFQ to make replies comparable.
How should this listing be evaluated?
Check title, category, specifications and related keywords against the actual sourcing requirement.
Source mix: ugc
Key specifications
Product sourcing keywords
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