Screw-Press Sealed Horizontal Alumina Roller Jars for for 2L, 3L, 5L Roller Mills

This product is a horizontal alumina ball mill tank specifically designed for laboratory roller mills that utilize a screw-press mechanism for securing and sealing the jar. Manufactured from high-purity 99% alumina ceramic, these jars are built for super wear-resistance and minimal contamination during grinding and mixing processes. They are available in standard capacities of 2-liter, 3-liter, and 5-liter to fit corresponding mill models.

The key feature of this jar is its screw-press compatibility:

The jar is designed to be placed horizontally between two rotating rollers. A central threaded screw (or multiple screws on the pressure plate) is manually turned to press a metal pressure plate firmly against the end of the jar.

• Secures the Jar: Holds it firmly in place against the rotating rollers, ensuring it turns without slipping.
• Creates the Seal: Compresses the lid tightly against the jar body (via an internal O-ring) to create a hermetic seal, preventing leakage of solvents or dust.

The system typically consists of:

• The Alumina Ceramic Jar: The main grinding container.
• The Lid: Usually made from alumina or stainless steel, featuring a central port.
• The Sealing Gasket: A silicone or rubber O-ring placed in a groove on the lid or jar mouth.
• The Pressure Cap/Plate: A metal end-cap that transfers the force from the central screw to the jar lid.

• Secure Sealing: The screw mechanism provides strong, even pressure for a reliable seal, suitable for wet grinding with solvents.
• Excellent Wear Resistance: The 99% alumina construction ensures extreme longevity and resistance to abrasion from grinding media.
• Contamination-Free: Alumina ceramic ensures no metallic impurities (Fe, Cr, Ni) contaminate your sample, crucial for battery materials, ceramics, and analytical chemistry.
• Chemical Inertness: Highly resistant to acids, alkalis, and organic solvents.
• Designed for Stability: The horizontal cylindrical shape is optimized for the tumbling and cascading motion in roller mills, ensuring efficient and homogeneous mixing/grinding.

These jars are ideal for:

• Battery Material Research: Mixing electrode slurries (e.g., LFP, NMC, Graphite).
• Ceramic Industry: Grinding and homogenizing ceramic glazes and raw materials.
• Paint & Ink Production: Laboratory-scale dispersion of pigments.
• Geology & Chemistry: Sample preparation and mixing where purity is critical.
• Pharmaceuticals: Blending and size reduction of active ingredients.

1. Loading: Fill the jar with grinding media and material, not exceeding 50-60% of its total volume.
2. Sealing: Place the lid on the jar with the O-ring in place. Position the metal pressure cap on the end.
3. Mounting: Place the assembled jar horizontally into the mill between the two rollers.
4. Pressing: Turn the central screw handle clockwise to apply pressure until the jar is firmly secured and will rotate with the rollers without slipping.
5. Process: Start the mill and run for the required duration.
6. Unloading: After stopping, loosen the screw to release pressure before removing the jar.

Note: Always ensure the jar and locking mechanism are clean and undamaged before use. Avoid over-tightening the screw, as excessive pressure could potentially damage the ceramic.