
Vaccum Hopper Loader
Vacuum hopper loader, also known as a self-contained or bin loader, is an essential piece of plastic processing equipment. It utilizes an integrated, imported motor to create a vacuum for transporting various plastic materials—such as pellets, powders, or regrinds—from bulk containers to processing machines. This loader is equipped with a pickup wand connected to a short flex hose, facilitating material transfer. It also features a small electro-mechanical control panel, allowing precise operational adjustments. Boasting customizable controls, durable stainless steel construction, and a self-cleaning feature, this loader significantly reduces the need for manual maintenance.

Yushine mixer with More Extras
Yushine Self-contained vacuum loaders, called pneumatic loaders, offer an impressive solution to many industries with their powerful conveying capability. They allow for effective transport over long distances in pellet or powder form.


Specification
| Model | SAL300G | SAL-350U | SALY400G | YB-Y600UG | SAL-700G | SAL-800G | SAL-800G2 |
| Power | 1.1kw/1.5HP | 1.2kw/1.5HP | 0.75Kw/1HP | 2.3Kw/3HP | 1.1/1.3 | 1.1/1.5 | 1.5/1.2 |
| Carbon Brush | Carbon Brush | induction | Carbon brush | Carbon Brush | Induction | Induction | |
| Voltage | 1P-220v/50hz | 1P-220v/50hz | 3P-380v/50HZ | 3P-380v/50HZ | 3P-380v/50HZ | 3P-380v/50HZ | 3P-380v/50HZ |
| Conveying Capacity(Kg/h) | 300 | 300 | 330 | 400 | 310 | 450 | 500 |
| Loading Distance(m) | 3.5 | 3.5 | 4 | 8 | 4 | 4 | 5 |
| Static Wind Pressure(mm/H,o) | 1300 | 1350 | 1400 | 2400 | 1500 | 1800 | 2400 |
| Reservoir Volume(L) | 7.5 | 7,5 | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 |
| Conveying Tube Inner Diameter(mm) | φ38 | φ38 | φ38 | φ38/ | φ38/ | φ38/ | φ38/ |
| Specification Of The Attached Hoses(mm) | φ38mmx3.5m 1pcs | φ38mmx3.5m 1pcs | φ38mmx4m 1pcs | φ38mmx9m 1pcs | φ38mmx8m 1pcs | φ38mmx8m 1pcs | φ38mmx8m 1pcs |
| Dimension,LWH(cm) | 55x40x60 | 48x28x58 | 55x40x60 | 70x37x50 | 37x33x54 | 45x38x67 | 45x38x67 |
| Approx.Net Weight(kg) | 12 | 32.5 | 30 | 66 | 14 | 47 | 50 |
REQUEST A QUOTE FOR MORE DETAILS
All You Need to Know About Vaccum Loader

The SAL Series Loaders are self-contained vacuum loader systems for conveying plastic pellets and regrind.
They are powered by single-phase motors and have flange or machine mount options. They feature automatic self-cleaning and effective dust removal, guaranteeing reliable performance.
Combined with a proportional valve and PLC control, they are easy to install and save energy for long-distance conveying.
In addition, with a high-efficient high-speed carbon brush motor and flexible magnetic reed switch,it can achieve clean and flexible material loading. It is especially suitable for conveying plastic granules,crushed material, mixing with masterbatch, etc.
What Are Self-Cleaning Hopper Loaders Used For?
Yushine self-cleaning hopper loaders are ideal for a wide range of industries. They offer reliable conveying capabilities for both virgin and regrind materials. Popular applications include injection molding (PVC, ABS, PP), chemical industry powder handling, food and beverage production, and pharmaceutical processing operations.
These series of pneumatic vacuum loaders are typically press-side or press-mounted

Self-contained Vacuum Loader Parts
The device incorporates a pulse electromagnetic valve to control pulsed gas injection.

Utilizes 360-degree omnidirectional washing to clean all corners of the device’s interior thoroughly.

Uses reverse airflow for washing, effectively removing accumulated dust and impurities.

Utilizes imported AMETEK high-speed motor, ensuring motor quality and performance.

Employs a 1000-mesh high-precision filter, effectively filtering dust particles as small as 15 microns, preventing dust from entering and damaging the motor.

Features automatic cleaning and lubrication functions, automatically removing dust from the feeder’s interior and re-lubricating key components, enhancing equipment reliability.

Vaccum Hopper Loader Applications
Automatic material feeding machines have the characteristic of”one machine for multiple uses” and can be applied to various industries and scenarios:




Why Choose SAL350 vacuum hopper loader?
Considerations When Buying a Vacuum Hopper Loader?
First, make sure the loader matches your factory’s power supply. We offer single-phase for smaller setups and three-phase for larger ones. Correct voltage ensures smooth operation.
Consider the material’s transport distance, the amount needed, and the speed required to keep up with production without delays.
The characteristics of the raw materials you use also affect the choice of vacuum hopper loaders.
(1)Pure materials or mixed materials. If your materials are pure pellets with low dust, our general models, SAL300G, SAL700G, and SAL800G, are enough. They are very easy to use and have low dust. If you need to convey crushed materials or regrind materials with more dust, you should choose the open-type model, SAL900G.
(2)For sticky or viscous materials, you should choose the one with an anti-stick function or self-cleaning system during suctioning.
(3)If the material is powder or is 100% powder, you should choose the powder loader.
(4) If you need dust-free and maintenance-free, European-style machine SAL-350U is your best choice.
Frequently Asked Questions
Vacuum hopper loaders are designed to automatically transport plastic raw materials such as pellets, granules, powders, and regrind from a source container to a destination hopper or processing machine.
Ensure a consistent supply of materials to injection molding machines, extruders, and other plastic processing equipment.
Reduce manual labor and increase production efficiency in plastic manufacturing processes.
Vacuum hopper loaders come in two main configurations, each with its advantages:
1. Self-contained loaders
These compact units have everything built in—the motor, hopper, and control system are all integrated into one package. They’re great for smaller operations or simple, plug-and-play solutions.
2. Separate vacuum hopper loader systems
These are more heavy-duty setups. The main vacuum pump (or central vacuum system) is separate from the hoppers, which means it can simultaneously serve multiple loaders. This makes installation and maintenance more accessible, as you can access components separately. It also means more power and higher capacities, making them suitable for larger operations or more demanding applications.
1. Design and configuration.
Self-contained loaders: a compact unit with built-in motor, hopper, and control system.
Separate systems: split design with a separate vacuum pump and hopper.
2. Capacity and power.
Self-contained loaders: Lower capacity and power.
Separate systems: Higher capacity and power.
3. Installation and flexibility
Self-contained loaders: Easy ‘plug-and-play installation.
Separate systems: More flexible installation by placing the motor and hoppers separately.
4. Maintenance and accessibility.
Self-contained loaders: harder maintenance due to the integrated design.
Separate systems: Easier maintenance with independently designed components.
First, check the air debugging inlet pipe of the main unit. Feel some suction with your hand(if there is no suction,maybe there is some air leakage caused by the sealing ring or somewhere of the lower piping system.)
If there is suction,connect the pipe to the hopper , then see if there is airflow when the material is being sucked from the hopper’s material suction point. Once there is airflow, you can insert the pipe into the material pile(and note that it’s not allowed to inset it straight,just insert it with an angle to let materials suck smoothly).
Once the above factors have been checked, we believe you have excluded most causes.As for the other, the motor has been used for a long time and aged, thus, the suction of the fan is decreasing, and you are supposed to replace the blower in time.
Case Models

Self-contained vacuum loaders are widely used in color masterbatch injection molding. Efficiently meter the base material and masterbatch and enhance production efficiency. In producing plastic products,self-contained vacuum loaders can ensure the color consistency of plastic products and reduce labor costs. Additionally, it reduces the waste of masterbatch and the stability of the injection molding process.

A self-cleaning auto powder loader is available for not easy-to-stick material, the process is dust free and available powder up to 1500_mesh,which can reduce labor greatly.Model:660. This material loader is recommended for chemical,pharmaceutical,food and other industries. An intelligent control system and efficient filtration can improve equipment efficiency,increase equipment’s output,facilitate the safe and stable running of the related equipment.

The 1-to-1 or 1-to-4 Multi-Station Hopper Loader can be designed to transport one raw material or four simultaneously, according to your actual request. The main controller can control 1-4 pieces of receivers connected with Euro-style hoppers so that you can easily control the material conveying process. Moreover, all systems can be customized according to your requirements.








