
JZ BZ Queen Cell Bar
Standard horizontal cell bar for grafting frames. Accepts JZBZ wide-base cups.
- Standard spacing for JZ-BZ wide-base cell cups
- Snaps into queen rearing frames — works with grafted larvae or cell-punch (no-graft) methods
- Cups click in securely for easy loading and transfer
What it is
A queen cell bar from JZ's BZ's — the wooden bar that holds 10–20 queen cell cups during grafting. The bar slides into a standard frame or a custom cell-builder frame and hangs the cells in the middle of a queenless colony for drawing out.
What it's for
Step 2 of queen rearing (step 1 is the grafting into cell cups, step 3 is capping and distribution to mating nucs). The cell bar suspends the grafted cups at the right orientation — cup opening pointed down — so the bees draw the cells normally. A bar holds a row of cups spaced for easy later harvesting.
Compatibility
Designed for JZ's BZ's wide-base cell cups (the industry-standard wide base). Fits in a standard deep frame by removing the middle foundation and wiring the bar across the frame opening. Most queen rearers cut a dedicated cell-building frame with three bar slots to maximize output per cell builder colony.
Usage notes
Clean the bar between grafting rounds — propolis buildup and old larval residue reduces acceptance on the next round. Some rearers boil the bar briefly to reset it between seasons. Pair with a grafting tool (Chinese or Swiss pick) and cell protectors for after the cells are capped.



