20mm Crimp Top Aluminum Caps with Septa
    • 20mm magnetic aluminum caps
    • 20mm crimp caps size
    • 20mm septa
    • 20mm heaspace aluminum caps
    • 20mm aluminum caps
    • 20mm crimp aluminum caps
    20mm magnetic aluminum caps

    20mm Crimp Top Aluminum Caps with Septa

    Suitable: 20mm Crimp Top Headspace Vials
    Caps Material: Magnetic Aluminum
    Septa Material: PTFE/Silicone; PTFE/butyl
    Septa Size: 20*3mm
    Cap Features: 8/9.5mm Centre Hole
    Color: Metal Silver
    product description


    20mm crimp top aluminum cap, silicone/PTFE septa, PTFE/butyl septa


    The crimp cover of the jaws is made of aluminum for crimping and sealing. The cap gasket is a septum material that is pierced by a syringe needle to extract a sample from the vial. The cap liner sheet has various configurations and is also made of various materials.

    Crimp Caps squeeze the septum between the rim of the glass vial and the crimped aluminum cap. This forms an excellent seal preventing evaporation. The crimp cap vial requires crimping tools to carry out the sealing process.

    The cap material is a metal aluminum cover. The design with a 9.5mm hole in the center of the cover can be used for headspace analysis. Standard GC and HPLC sample bottles can be used for autosampler and sample storage. 


    20mm*3mm PTFE silica gel composite material features, silica gel protects the piercing of the injection needle, PTFE and reagent contact with high temperature resistance, acid and alkali corrosion resistance. There are two thicknesses, 2mm or 3mm, PTFE is about 0.1mm, and silicone thickness is about 1.9mm or 2.9mm.

    Part No.



    White PTFE/White Silicone Septa, Φ20*3mm


    Nature PTFE/Nature Silicone Septa, Φ20*3mm


    White PTFE/Blue Silicone Septa, Φ20*3mm


    Nature PTFE/Yellow Silicone Septa, Φ20*3mm


    Nature PTFE/Blue Silicone Septa, Φ20*3mm


    Gray PTFE/Moulded Butyl Septa, Φ20*3mm


    Gray PTFE/Pharma-fix  Butyl Septa, Φ20*3mm


    20mm Crimp-top Aluminum Cap, 9.5mm Centre Hole


    20mm Crimp-top Blue Magnetic Aluminum Cap, 8mm Centre Hole


    White PTFE/White Silicone Septa, 20mm Crimp-top Aluminum Cap, 9.5mm Centre Hole


    White PTFE/White Silicone Septa, 20mm Pressure Release Headspace Aluminum Cap, 9.5mm Centre Hole


    White PTFE/Blue Transparent Silicone Septa, 20mm Crimp-top Aluminum Cap, 10mm Centre Hole for 6ml Karl Fisher Vials


    White PTFE/White Silicone Septa, 20mm Crimp-top Blue Magnetic Aluminum Cap, 8mm Centre Hole

    Company Introduction

    1. Founded in 2007, Zhejiang Aijiren, Inc. specialized in chromatography consumables, such as autosampler vial for HPLC, headspace vial, GC vials, micro inserts, septa and caps, syringe filter, etc, covers more than 10000 square meters, and has clean workshop more than 2000 square meters. 100, 000 class cleaning room;  

    2. 15 years export experience, exprot to more than 70 countries, 2000+ customs around the world; 

    3. More than 10 years experience for automatic analytica technique

    4. Aijiren has own R&D Center and Quality Controll Center to keep products in high quality.

    5. All materials are produced at 100,000 grade clean room.
    6. Passed ISO9001:2015  quality management system certification, RoHS compliance can also be provided.

    How to confirm product quality before placing orders?
    After production, all articles are delivered to QC center, only qualified products can be release to the next procedure.
    Meanwhile, you are welcome to ask for samples for testing.
    How to star order or make payment?
    Proforma Invoice will be sent first after confirmation or order together with our bank infomations.
    Pay by T/T, Westren Union or Alipay.
    What is the charge standard about the Samples?
    1) For our first cooperation, free samples will be provide buyer afford the shipping cost.
    2) For our old customers, we will send free samples, even though new design samples, when have stocks.
    3) Samples delivery date is 24 to 48 hours, if have stocks. Customer design is about 3-7 days.
    Can you provide OEM service?
    Yes, we had already do OEM service for more than 4 world famous Brand in chromatography area.
    What is the MOQ?
    For vials, caps and syringe filters MOQ is 1pack(100pcs), for hand crimper/decrimper MOQ is 1pack(1pc).
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