Siemens Hyco 7AA71M-4 B34 Diaphragm Vacuum Pump

The Siemens Hyco 7AA71M-4 B34 diaphragm vacuum pump is a compact, oil‑free vacuum source built for industrial systems that require clean, dry pumping. This three‑phase, dual‑voltage unit runs on 230/460 V (regional variants list 230/400 V) and delivers about 0.43 kW of input power with a nominal speed around 1,670 RPM at 60 Hz (some listings note 0.37 kW and ~1,370 RPM at 50 Hz). The model is a known OEM component in Trumpf equipment (notably in P‑173/2 diaphragm pump assemblies) and is commonly associated with Hyco ML‑348‑D37‑SA pump heads at 230/460 V, reflecting its role in high‑demand manufacturing environments. In practice, this pump is used where a diaphragm pump is required to provide reliable vacuum in laser processing and other industrial applications, offering compatibility with standard three‑phase power and a compact footprint suitable for integration into existing equipment.)