Zhengzhou, China Laboratory thermal processing since 2008 ISO 9001 & CE compliant
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High-Purity Rectangular Alumina Crucible with Lid for Advanced Ceramic Sintering

ZYLAB Premium Alumina Crucible with Lid is a high-purity laboratory container made from alumina (Al₂O₃) with over 99% purity, offering excellent resistance to high temperatures and chemical corrosion. It features a rectangular (square) design and includes a precisely fitted lid to minimize contamination and material...

    99% Alumina Square Crucible with Lid

    Product Details

    ZYLAB Premium Alumina Crucible for Advanced Ceramic is a high-purity laboratory container made from alumina (Al₂O₃) with over 99% purity, offering excellent resistance to high temperatures and chemical corrosion. It features a rectangular (square) design and includes a precisely fitted lid to minimize contamination and material loss during thermal processing.

    This type of crucible is widely used in muffle furnaces, tube furnaces, and crucible furnaces for high-temperature sintering and thermal treatment of advanced ceramics, including nano ceramic materials and piezoelectric ceramics. Its durability and thermal stability make it ideal for research laboratories, universities, and industrial R&D environments requiring reliable and repeatable results under controlled conditions.

    Alumina Purity: >99%

    Maximum temperature resistance: 1750°C

    Continuous operating temperature: ≤1600°C

    The lid can be purchased separately.

    We offer customized services according to your requirements!

    How to Use Alumina Crucibles?

    1. Before the first use, preheat the crucible in an oven at around 105°C for 120 minutes to remove moisture.

    2. Do not directly heat the crucible with gasoline blowtorch, acetylene torch, or alcohol burner to avoid uneven heating and cracking of the product.

    3. The heating or cooling rate should not be too fast. The temperature change below 1200°C should be <5°C/minute, and above 1200°C should be ≤4°C/minute.

    4. The distance between the product and the heating element (such as carbon tube, silicon molybdenum rod, or heating wire, etc.) should be >2cm.

    5. The bottom of large crucibles should preferably not directly contact the bottom of the furnace. It is recommended to use alumina foot pads or other heat-resistant materials to lift the crucible, forming air convection to prolong the service life of the product.

    Alumina Crucible for Advanced Ceramics Related Products

    Alumina Conical Crucible with Lid

    Curved Muffle Furnace Crucible

    Square Alumina Crucibles for Muffle Furnace

    Alumina Kiln Furniture for Muffle Furnace

    Technical data

    Specifications

    Figures below are the manufacturer data for this model. Anything not listed is confirmed in writing with the quotation rather than estimated here.

    Square Crucible with Lid (UoM:mm)
    20×20×1020×20×1725×15×1530×20×10
    30×20×1730×30×1030×30×2030×30×30
    40×30×2040×30×2540×30×3045×8×6
    45×22×1350×10×1050×20×1050×20×15
    50×20×2050×25×1050×25×2050×25×35
    50×40×1050×40×1550×40×2050×50×10
    50×50×2050×50×2550×50×3060×30×10
    60×30×1460×30×1560×30×2060×30×30
    60×40×2060×60×2565×65×2565×65×30
    65×65×3565×65×6570×70×3075×75×15
    78×38×2280×40×2080×40×3080×40×30
    80×40×4080×40×5580×40×4080×40×55
    80×80×4085×85×4090×60×2090×60×30
    90×60×4090×60×4590×90×3090×90×45
    100×20×20100×30×10100×30×15100×30×20
    100×30×30100×40×15100×40×20100×50×30
    100×60×40100×60×60100×100×25100×100×35
    100×100×40100×100×60100×100×100105×105×12
    105×105×40115×65×45115×115×35120×60×20
    120×60×40120×80×30120×80×40120×120×50
    120×120×100135×135×60140×140×38140×140×45
    140×140×70150×150×30150×150×50150×150×60
    150×150×80155×120×50160×120×35160×120×85
    160×140×120160×160×45180×180×60200×100×25
    200×100×50200×150×200200×200×50200×200×80
    200×200×100225×225×83250×150×80250×250×80
    250×250×100300×60×60300×180×70300×200×80
    330×330×80330×330×120330×330×160

    Processes This Unit Supports

    These are the applications ZYLAB lists this model under. Each link opens the full equipment set for that process, which is useful when a project needs more than one machine.

    Who Orders It

    Fields this model already works in, plus what ZYLAB puts behind it: a 2-year warranty on most products, glass excluded, spare parts in stock and free application support by WhatsApp or email.

    • University and institute research laboratories
    Buyer questions

    Ordering High-Purity Rectangular Alumina Crucible with Lid for Advanced Ceramic Sintering

    What is High-Purity Rectangular Alumina Crucible with Lid for Advanced Ceramic Sintering typically used for?

    ZYLAB Premium Alumina Crucible with Lid is a high-purity laboratory container made from alumina (Al₂O₃) with over 99% purity, offering excellent resistance to high temperatures and chemical corrosion. It features a rectangular (square) design and includes a pr

    How quickly can High-Purity Rectangular Alumina Crucible with Lid for Advanced Ceramic Sintering be shipped?

    Most standard ZYLAB models are held in stock. After testing and packing we normally ship High-Purity Rectangular Alumina Crucible with Lid for Advanced Ceramic Sintering within 3 to 7 days. Customised builds are scheduled after the drawing is confirmed, and we give you the date in writing before the order is placed.

    Is there a minimum order quantity for High-Purity Rectangular Alumina Crucible with Lid for Advanced Ceramic Sintering?

    No. ZYLAB has no minimum order requirement, so a single unit of High-Purity Rectangular Alumina Crucible with Lid for Advanced Ceramic Sintering is a normal order. Occasionally a component supplier imposes a minimum quantity of their own, and we tell you as soon as we are notified.

    Can we get technical help before ordering High-Purity Rectangular Alumina Crucible with Lid for Advanced Ceramic Sintering?

    Yes, and it is free. Our technical staff help with model selection, troubleshooting, manuals and application questions whether or not you have ordered from us before. Write to [email protected] or message us on WhatsApp.

    What if High-Purity Rectangular Alumina Crucible with Lid for Advanced Ceramic Sintering is damaged in transit?

    Contact your ZYLAB sales engineer immediately with photographs. We arrange a substitute delivery promptly and handle the claim with the carrier.

    Quote For High-Purity Rectangular Alumina Crucible with Lid for Advanced Ceramic Sintering

    Tell us the sample, the temperature and the atmosphere. You get the configuration, the price and the despatch date in one reply.