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Free Flowing Powder Spray Dryer
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Free-Flowing Spray Drying Machine LPG-50 Powder Flowability Mixing Packaging Carrier Flavor SUS304
LPG-50 Spray Drying Machine for Stable Powder Flowability
A powder can be perfect on the day it is dried and a problem two days later. If it cakes in the silo or bridges in the hopper, downstream mixing and packaging grind to a halt. A spray drying machine that controls moisture, particle shape and anti-caking behavior delivers powder that stays free-flowing all the way to the pack.
The Problem Customers Report
Powder cakes in storage and bridges in hoppers, forcing operators to hammer silos and stop packaging lines.
Poor flow makes dosing inaccurate, so blends come out off-ratio and packs come out underweight.
Sticky, unflowable powder also dusts heavily, creating housekeeping and inhalation problems.
Why It Happens
Residual surface moisture makes particles bond under pressure, so a powder that looks dry still cakes in a full silo.
Irregular, coarse and fine particles interlock, and fine fractions migrate to create dense, slow-flowing zones.
Hygroscopic ingredients absorb moisture from the air after drying, triggering caking that has nothing to do with the dryer itself.
Our Solution
The LPG-50 controls final moisture tightly, targeting the level where powder is dry enough to flow but not so dry that fines become airborne.
Uniform 40-120 μm particles with a rounded shape flow by rolling rather than interlocking, which keeps mass flow steady in hoppers.
An optional in-line anti-caking dosing point lets you add a small amount of flow agent before the powder is packed.
A cooling stage brings the powder down before storage, so warm, soft particles do not fuse together in the bag.
Application Scenarios
It suits spice blends and seasonings that must flow freely through blending and filling lines.
It fits dairy and beverage powders stored in bulk where caking would block silos.
It also serves chemical and detergent powders where accurate volumetric dosing depends on flow.
Specifications
| Parameter |
Specification |
| Evaporation Capacity |
50 kg/h water |
| Inlet Air Temperature |
160-200 °C |
| Outlet Air Temperature |
80-120 °C |
| Target Particle Size |
40-120 μm, rounded |
| Final Moisture Control |
typically 2-4% |
| Post-Dry Cooling |
Integrated cooling stage |
| Anti-Caking Option |
In-line flow-agent dosing |
| Contact Material |
SUS304 |
| Control System |
PLC + HMI |
| Heating Source |
Electricity / Steam / Gas |
How to Choose the Right Model
Start from your target moisture. Too dry a powder dusts and segregates; too wet a powder cakes. Aim for the middle of your spec.
If your ingredients are hygroscopic, specify the cooling stage and consider an integrated anti-caking dosing point.
For bulk silo storage, prioritise uniform particle shape over the finest possible size, since rounded particles flow best.
Ask for a flowability test on your actual powder if bridging has been a recurring problem.
FAQ
Q: Why does my powder cake even though it seems dry?
A: Caking is usually caused by residual surface moisture and hygroscopic pickup, not by overall dryness. Tight moisture control plus a cooling stage and an anti-caking agent solves most cases.
Q: What moisture should I target?
A: Most free-flowing food and flavor powders sit at about 2-4% final moisture. We will tune this to your recipe and storage conditions.
Q: Does particle shape matter?
A: Yes. Rounded particles roll and flow, while irregular ones interlock. The wheel atomizer produces the rounded shape that flows best.
Q: Can you add a flow agent during drying?
A: Yes. An optional in-line dosing point lets you blend a small amount of anti-caking agent before the powder is packed.
Tell us where your powder cakes and how you store it, and we will set up a spray drying machine that delivers stable, free-flowing output.
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