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The 40/21 balances speed and volume. It can be cycled at 60–80 shots/min while delivering over 1.5 liters per minute—perfect for medium-scale production lines. As of 2025, the AMS Bianka Model Set 40/21 remains in production, though AMS components are often distributed through specialized industrial automation suppliers rather than mass-market channels.
| Model Set | Bore (mm) | Stroke (mm) | Volume per stroke (mL) | Best for | |-----------|-----------|-------------|------------------------|------------| | Bianka 25/10 | 25 | 10 | ~4.9 | Micro-dispensing, small dots | | Bianka 32/15 | 32 | 15 | ~12.1 | Medium beads, gaskets | | | 40 | 21 | ~26.4 | General industrial, adhesives | | Bianka 50/25 | 50 | 25 | ~49.1 | High-volume filling, grease | ams bianka model set 40 21
Always use AMS-certified seals and pistons. Aftermarket parts often have slightly different tolerances, leading to leakage or scoring. The 40/21 balances speed and volume
| Symptom | Possible Cause | Solution | |--------|----------------|----------| | Inconsistent shot size | Worn piston seals | Replace seal kit (AMS part #B21-40-SEAL). | | Material leaks from rear | Damaged rod seal | Disassemble, inspect rod for scoring, replace seal. | | Slow cycle rate | Low air pressure or clogged exhaust | Increase pneumatic pressure to 5 bar, clean silencers. | | Cavitation (air bubbles) | Insufficient feed pressure or material de-aerated | Increase reservoir pressure to 1.5 bar, vacuum-degas material. | | No dispense, but piston moves | Broken check valve or blocked nozzle | Remove nozzle, clean valve ball and seat with solvent. | | Model Set | Bore (mm) | Stroke
In the world of industrial automation, fluid handling, and high-precision dispensing, few names carry the weight of consistency and engineering excellence as AMS (Advanced Manufacturing Systems). Among their extensive catalog of components, one product code that frequently surfaces in technical forums, parts lists, and maintenance manuals is the AMS Bianka Model Set 40/21 .