ZH Style Venturi Ejectors

ZH Style Inline Vacuum Ejectors for Compact Pick-and-Place Automation

ZH style vacuum ejectors are compact inline venturi generators that create vacuum using compressed air. They are a cost-effective and space-saving vacuum source for small vacuum cup applications, robotic pick-and-place systems, packaging equipment, electronics assembly, material handling and general automation systems.

Their simple inline body design allows easy installation directly into pneumatic circuits, machine frames or end-of-arm tooling where space is limited. Because they use compressed air and contain no moving parts, ZH style ejectors provide fast response, reliable operation and minimal maintenance.

What Is a ZH Style Vacuum Ejector?

A ZH style vacuum ejector is a small inline compressed-air-powered vacuum generator. It uses the Venturi principle to convert compressed air flow into vacuum, allowing suction cups or vacuum grippers to pick up and hold products.

These ejectors are commonly used where a simple, lightweight and economical point-of-use vacuum source is preferred over a centralized vacuum pump.

Why Use an Inline Vacuum Ejector?

• Compact Inline Body: Fits easily into tight spaces and small machine layouts.
• No Electrical Power Required: Generates vacuum from compressed air only.
• Fast Response Time: Ideal for high-speed pick-and-place cycles.
• Minimal Maintenance: No moving parts, motors or lubrication required.
• Multiple Nozzle Sizes: Choose the correct vacuum flow and air consumption for the application.
• Low Cost Installation: Simple design makes them economical for small vacuum systems.

How Does a ZH Style Vacuum Ejector Work?

Compressed air flows through the ejector nozzle and accelerates through a restriction. This creates a low-pressure zone that generates vacuum at the suction port. The vacuum is then connected to a suction cup, vacuum pad or gripper to lift and transfer the product.

Because vacuum is created directly at the point of use, inline ejectors can provide quick vacuum response and simple installation for small automation systems.

Common Applications for ZH Style Vacuum Ejectors

• Robotic pick-and-place systems
• Small suction cup applications
• Packaging machinery
• Electronics assembly
• Plastic part handling
• Labeling and feeding systems
• End-of-arm tooling
• Material handling automation
• Machine tending
• Small part transfer

How to Choose the Correct ZH Style Ejector

Selection depends on the suction cup size, product weight, required cycle speed, vacuum level, nozzle size, compressed air availability and the amount of leakage in the application. Smaller nozzle sizes use less compressed air, while larger nozzle sizes provide greater vacuum flow and faster evacuation.

For porous products, multiple suction cups or high leakage applications, a higher-flow vacuum generator may be required.