In-line Type Vacuum Vacuum Generators PU

The PU Series Linear Multi-Stage Vacuum Generator is a compact, air-driven vacuum solution designed for automated handling, pick-and-place, and transfer applications across both industrial and clean-environment settings. Built around a multi-nozzle ejector principle, it generates reliable vacuum using only oil-free compressed air — no electricity, no moving mechanical parts in the vacuum path, and no risk of oil contamination. This makes it an ideal choice for manufacturers who need safe, quiet, and energy-efficient vacuum generation in spaces where traditional pumps are too bulky or too costly to operate continuously.

What Is the PU Series?

What exactly is the PU Series? It is a family of linear multi-stage vacuum generators available in three body sizes — PU1, PU2, and PU3 — that cover a wide suction-flow range from roughly 10 L/min up to 171 L/min. Within each size, four vacuum-characteristic variants are offered: the B-type ultra-low-pressure model (PU1 only), the H-type high-vacuum model, the L-type high-throughput model, and the M-type low-pressure model. This flexible matrix lets engineers match the generator precisely to the workpiece — whether it is a porous, breathable material that needs high flow, or a dense, leak-tight part that needs a deep vacuum level. Every unit is specified through a clear ordering code covering suction flow, vacuum characteristic, supply/vacuum/exhaust port sizes, and an optional mounting bracket.

Key Features & Design Advantages

The PU Series stands out for several practical design advantages:

• Compact & lightweight — small footprint and easy installation on tools, fixtures, and robot end-effectors.

• Energy saving — a secondary vacuum tube recovers and reuses part of the driving energy, reducing air consumption by 40–50% compared with a single-stage generator of the same specification.

• Low noise — a configurable silencer is fitted as standard, lowering exhaust noise well below that of traditional linear generators.

• Quick to service — the air inlet and vacuum inlet use snap-fit quick-connect fittings, so the unit can be disassembled in seconds for fast cleaning or tube change.