ZH‑B Series Box Type Vacuum Ejector

ZH‑B Series Box Type Vacuum Ejector | Built‑in Silencer Single Stage Venturi Vacuum Generator

Brand: SOLH by Richge Technology | Drop‑in Replacement Compatible with Imported ZH‑B Series

1. Product Overview

     ZH‑B box type vacuum ejector adopts single‑stage venturi principle with integrated silencer inside the body. Only two ports are reserved: SUP supply port and VAC vacuum port, no separate exhaust port. Exhaust air is discharged directly through the built‑in silencer. Ultra‑simple installation without external silencer required. Fully interchangeable with imported ZH‑B in dimension and connection interface. Two performance versions available: S high‑vacuum type and L high‑flow type, with complete nozzle sizes. Ideal for compact small automation fixtures and robot pick‑and‑place applications.

  Model Distinction

     • ZH‑B Box Type: Built‑in silencer, 2 ports (SUP & VAC)

     • ZH‑D Body‑ported Type: No built‑in silencer, 3 independent ports SUP/VAC/EXH for external piping

2. Complete Model Coding Explanation

  Example: ZH07S‑06‑06

     • ZH: Series code, box type vacuum ejector with built‑in silencer

     • 07: Nozzle size code

     • S / L: Max vacuum characteristic. S = high vacuum; L = high flow

     • 06: SUP supply port connection size

     • 06: VAC vacuum port connection size

  Port Code Reference Table

  Order Example: ZH10S‑08‑10
     ZH box type vacuum ejector with built‑in silencer, Φ1.0mm nozzle, S high‑vacuum grade; supply port Φ8 one‑touch fitting, vacuum port Φ10 one‑touch fitting.

3. Core Performance Advantages

     • Integrated built‑in silencer: No external silencer required. Exhaust air is discharged through internal silencing structure. Fewer spare parts, low noise and space saving.

     • Only 2 ports for simple wiring: Only SUP air supply port and VAC vacuum port, no separate EXH exhaust port. Perfect for limited compact installation space.

     • Dual performance versions optional

￮ S High-vacuum (-88kPa): Strong adsorption force for well-sealed workpieces such as steel sheet, glass, PCB and plastic housing.

￮ L High-flow (-48kPa): Larger suction flow to compensate vacuum leakage, suitable for breathable porous materials including paper, film, carton and foam.

     • Multiple port selections: Metric one-touch fittings widely used for domestic machines; Rc female thread versions for export equipment.

     • Lightweight PBT body: Integrally molded PBT nozzle, low weight, suitable for small robot EOAT. Supports direct screw mounting or bracket installation.

     • Oil-free operation: Only dry filtered compressed air required, oil mist lubrication forbidden.

4. Standard Technical Specifications

  Reference Performance at 0.5MPa Supply Pressure

5. ZH‑B Box Type VS ZH‑D Body‑ported Type

6. Selection Guidance

     • S / L Version Selection

￮ ✅ S High-vacuum: Smooth sealed workpieces requiring strong adsorption force.

￮ ✅ L High-flow: Leaky workpieces such as carton, film, fabric, large flow compensates vacuum leakage.

     • Nozzle Bore Selection: Select based on total suction cup adsorption area. Larger nozzle brings higher flow and higher air consumption. Avoid oversized nozzle to prevent compressed air waste.

     • Port Selection: Metric one-touch fittings (06/08/10) for domestic automation; Rc thread (01/02) for export machines.

     • Vacuum Detection: No built‑in pressure sensor. Install ZSE vacuum pressure switch in vacuum circuit for vacuum confirmation or missing part alarm.

7. Standard Pneumatic Circuit

     AFC air source service unit (oil mist unit forbidden) → 3/2 solenoid valve → SUP supply port of ZH‑B; VAC vacuum port → ZFC vacuum filter → vacuum suction cup.

8. Important Operation Notes

     • Oil mist lubricator is strictly prohibited. Oil contamination will clog tiny nozzle and reduce suction force.

     • ZFC vacuum filter must be installed on vacuum side to block dust and protect nozzle.

     • Recommended supply pressure: 0.4~0.5MPa. Long-term continuous operation under 0.6MPa full pressure is not recommended.

     • Keep the hose between ejector and suction cup as short as possible, reduce pipeline volume for faster vacuum response.

     • Built‑in silencer element will accumulate dust after long time use. Clean or replace silencer element once suction drops.