Coaters Accessories

Coater accessories are where coating uniformity, contamination control, and throughput are actually decided — the slot-die head, the doctor blade, the milling jar that prepared the slurry, and the roll-to-roll handling unit that feeds the foil all sit upstream of every micron you measure on the dried film. This collection groups the wear parts, fixtures, and add-on modules that pair with our coaters and the slurry-prep equipment feeding them.

Slurry-prep wear parts

Milling jars and crusher plates are the dominant contamination source in lab-scale electrode work, because grinding media chip into the powder you are about to coat. The jar material has to be matched to the chemistry being processed:

• Zirconia (ZrO2) — high hardness and low reactivity; the default choice for NCM, LFP, and graphite R&D.
• Alumina (Al2O3) — preferred for SOFC/SOEC powders and other oxide-ceramic work where Zr ingress would be a concern.
• Stainless steel (SUS304/316) — economical for non-battery sample prep; avoid for cathode milling because Fe/Ni/Cr wear debris is a known contaminant.
• Agate — soft, low-contamination option for small batches of mineral or analytical samples.

Vacuum-sealed jar variants are available where the powder is air- or moisture-sensitive and you do not want to put the entire mill inside a glovebox.

Coating heads and applicators

Slot-die heads, film applicators, and adjustable doctor blades define the wet-film geometry. Slot-die manifolds in our lineup use a coat-hanger profile so NMP-based slurries do not develop dead zones; micrometer-adjustable blades let you trim the gate height in fine increments to compensate for slurry shrinkage and hit a target dry-film loading.

Web-handling and downstream fixtures

Roll-to-roll tension units pair with our rolling presses to keep the foil aligned through the calendaring nip; brushless drives are used so the modules remain glovebox-compatible. Pouch-cell racks, quick-press fixtures, PCB coin-cell clamps, and ultrasonic welding heads cover the post-coating side — cell stacking, tab welding, and electrical testing fixturing.

If you are sourcing wear parts for a slurry mill, start with the milling-jar group above. If you are upgrading a coater itself, see Coaters; for tab welding and cell-assembly fixtures, see Battery Equipment.