Overview

Vacuum Loader

A vacuum loader is a material handling device that uses negative pressure to pneumatically convey powders or granules from a source (such as a bin or drum) to a destination (such as a mixer or hopper).

D97 <2μm

Fineness Range

GMP+

Compliant Design

360°

Process Support

Principle

How does a Vacuum Loader Work

Schematic diagram of vacuum loading

Vacuum Generation

A vacuum pump starts, creating negative pressure inside the conveying line and the vacuum loader.

Material Suction

The pressure difference between the material source and the vacuum chamber causes air to flow rapidly inward, carrying material through a suction pipe.

Air-Material Separation

The mixture of air and material enters the vacuum loader. The air passes through a filter inside the receiver. The filter traps any fine dust particles, allowing only clean air to be drawn into the vacuum pump.

Discharge

Once the material reaches a preset level or timer condition, the vacuum stops, an outlet valve opens, and the material is discharged into the downstream equipment.

Features

Dust-Free Operation

Vacuum loaders transport materials through a sealed pipeline using negative pressure. Zero dust leakage helps protect the working environment and prevent cross‑contamination.

Flexible installation

The pipeline system is easily configurable and can be routed around existing equipment. This flexibility permits complex layout integration without major structural changes.

Compact Footprint

Vacuum loaders can be mounted directly on hoppers or frame stands, making them ideal for installations with limited floor space.

Gentle Material Handling

The pneumatic conveying uses air flow instead of mechanical force, which helps minimize damage to fragile or abrasive materials during transport.

Easy Maintenance

Tool-free disassembly and quick-release clamps enable rapid cleaning and component replacement, improving long-term reliability and reducing operating costs.

High Automation

Vacuum loaders automatically control feeding cycles based on material level sensors. This reduces manual operation and ensures stable, continuous material supply.

Specification

Technical Specifications

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

Model	Capacity	Hopper Volume	Filter Area	Construction
180	40 - 500 L/h	6 L	0.45 m²	Stainless Steel 304 / 316L
250	100 - 800 L/h	12 L	0.45 m²	Stainless Steel 304 / 316L
320	500 - 2000 L/h	22 L	0.9 m²	Stainless Steel 304 / 316L
430	1000 - 3000 L/h	50 L	1.35 m²	Stainless Steel 304 / 316L
560	1500 - 6000 L/h	125 L	2.7 m²	Stainless Steel 304 / 316L

All specifications subject to process requirements. Contact engineering for custom configurations.

Download Full Technical Datasheet

Get the complete specifications, and performance data in one document. PDF · ~2MB

Download

Applications

Food

Food Additive

The closed conveying system prevents dust generation and contamination, ensuring compliance with strict hygiene standards.

Pharmaceutical

APIs & Excipients

Vacuum loaders handle APIs and excipients under high cleanliness standards, minimizing contamination risks and ensuring precise material transfer.

Fine Chemical

Pigments & Catalysts

Vacuum loaders help maintain a clean environment, improve material handling efficiency, and reduce contamination risks.

Plastics

Pellets & Fillers

Vacuum loaders are widely used in the plastics sector to feed raw materials directly into injection molding, extruders, and blenders.

FAQ

Answers to the most common technical and commercial questions from procurement managers and process engineers evaluating vacuum loaders.

Still have questions?

Our engineers are available for a 30-minute technical consultation.

Book a Consultation

Where does the vacuum come from?

The vacuum source for vacuum loaders typically comes from as follows:

Vacuum pump – the most common type, driven by a motor to generate stable negative pressure.
Venturi system – uses plant compressed air flowing through a Venturi nozzle to create vacuum.

What are the limitations on conveying distance and height?

Vacuum loaders typically convey up to 50 m horizontally and 10–20 m vertically.

What maintenance is required?

Typical maintenance tasks include regular filter cleaning or replacement, vacuum pump inspection, and pipeline leak checks.

Are vacuum loaders suitable for continuous operation?

Vacuum loaders operate in batch cycles, not continuously. But a special design can achieve near-continuous feed.