Vacuum Generators | Venturi Ejectors

     Brand: SOLH by Richge Technology (睿其格科技)

     SOLH venturi vacuum ejectors replace bulky central vacuum pumps for robotic automated pick-and-place tasks. Without motors or wearable moving parts, these ejectors run maintenance-free and achieve full dimensional interchangeability with original SMC vacuum generators.

Main Product Lines

1. ZU Inline Straight EjectorThis compact inline ejector comes with an integrated silencer and fits PU4/6/8 pneumatic tubing. ZU-S delivers high vacuum up to -93kPa for smooth rigid workpieces, including PCBs, chips and metal sheets. ZU-L provides large suction airflow to handle porous materials such as cartons, foam and fabric.
2. ZB Integrated Vacuum ModuleThis all-in-one unit integrates control valve, blow-off regulator, inline filter and vacuum pressure switch. It outputs workpiece detection signals for PLC linkage, and supports optional multi-station manifolds for robot end-of-arm tooling.
3. ZL Multi-stage Energy-saving EjectorAdopting a three-stage venturi structure, this model generates 2–3 times higher airflow than single-stage ZU ejectors while cutting air consumption by 30%. It works best for heavy and porous workpiece handling.

Core Technical Specifications

     Recommended supply air pressure ranges from 0.4–0.6MPa, with a maximum allowable inlet pressure of 0.7MPa. Single-stage ZU ejectors reach ultimate vacuum of -93kPa, while multi-stage ZL ejectors reach -95kPa. Available nozzle sizes cover 0.3mm, 0.5mm, 0.7mm, 1.0mm and 1.2mm. The operating temperature range is 0℃ ~ +60℃. NBR rubber serves as the standard sealing material, with food-grade silicone as an optional upgrade. Vacuum circuits require oil-free dry compressed air; lubricator units are strictly forbidden. The mechanical service life exceeds 10 million continuous operating cycles.

Matching Vacuum Accessories

     Compatible supporting parts include ZPT buffer suction cups, ZFC inline vacuum filters, vacuum pressure switches, blow-off check valves, M5 micro push-in fittings and 3V series direct-acting solenoid valves.

Key Advantages

1.  No wearable internal components deliver far lower failure rates compared to large central vacuum pumps.
2.  Millisecond-level vacuum generation and release support high-speed automated production cycles.
3.  Built-in silencers reduce workshop noise without extra auxiliary silencer parts.
4.  Fully interchangeable mounting dimensions allow direct drop-in replacement of imported ejectors.
5.  Oil-free vacuum output meets clean production standards for electronics, food and medical processing lines.

Application Industries

     Our vacuum ejectors are widely deployed in 3C electronics PCB and chip assembly, carton packaging automation, lithium battery sheet handling, glass processing, logistics sorting lines, injection molding pick-and-place and medical equipment assembly.

Quick Selection & Operation Guide

1.  Select ZU-S for smooth rigid workpieces; choose ZU-L or ZL multi-stage ejectors for porous cartons and foam materials.
2.  Only 3V series 3/2-way direct-acting solenoid valves are suitable for negative-pressure vacuum circuits; pilot-operated 2V and 4V valves cannot maintain vacuum.
3.  Install a ZFC inline vacuum filter upstream of each ejector to prevent nozzle clogging, and clean filter elements regularly.
4.  Minimize tube length between the ejector and suction cup to cut vacuum pressure loss.
5.  All vacuum circuits must use oil-free FR two-unit air preparation assemblies; lubricator modules are prohibited.

SEO Meta Information

     Meta Title: SOLH ZU ZB ZL Venturi Vacuum Generators | Richge Technology Meta Description: SOLH compact venturi vacuum ejectors fully interchangeable with SMC, oil-free vacuum solutions for robotic pick and place in electronics, packaging and new energy industries.

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