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From 1.5 L/h to 5 L/h: Laboratory Spray Dryers Built for Real R&D Work

Time: 2026-09-07

Ruiyuan Machinery · Lab Drying Series

Turning a solution, emulsion or suspension into dry powder is supposed to be the fastest part of product development — not the bottleneck. Ruiyuan’s two laboratory spray dryers, the RY-1500 and the RY-LPG-5, cover the full bench-to-pilot gap with seconds-level drying, precise process control and honest, repeatable results.

Key figures: drying time 1.0–1.5 s (RY-1500) and 5–15 s (RY-LPG-5) · PID temperature accuracy ±1 °C · typical powder recovery ≥95%.

01 · Why laboratories choose spray drying

Spray drying exposes every droplet to hot air for only a few seconds, which is why it is the standard route for heat-sensitive formulations — dairy, enzymes, plant extracts, flavors and bio-actives that would degrade in a tray or vacuum dryer.

02 · RY-1500 Laboratory Spray Dryer — see every droplet dry

Two-fluid atomization · Water evaporation 1.5 L/h

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RY-1500 — transparent borosilicate glass drying chamber and cyclone · evaporation 1.5 L/h

Built around a transparent borosilicate glass drying chamber and cyclone, the RY-1500 lets you watch atomization, drying and powder separation in real time — invaluable when a formulation is new and every observation is data. The glass resists high temperature and dilute acids and alkalis, and every component dismantles quickly for cleaning between batches.

Atomization is handled by a two-fluid nozzle with interchangeable orifices, so droplet size is tuned by air pressure and feed rate rather than by swapping the entire atomizer. A built-in oil-free air compressor keeps the machine self-contained, and an automatic de-blocking device keeps the nozzle clear during runs with viscous or particulate feeds.

Parameter

Value

Water evaporation

1.5 L/h (maximum feed rate 2,000 mL/h)

Atomization

Two-fluid nozzle, downward co-current flow; orifices 0.5 / 0.7 / 0.75 / 1.0 / 1.5 / 2.0 mm

Feed system

Peristaltic pump, 50–2,000 mL/h, continuously adjustable

Inlet air temperature

40–300 °C, PID controlled (±1 °C)

Outlet air temperature

40–140 °C

Drying time

1.0–1.5 seconds

Process contact

Borosilicate glass drying chamber, cyclone and receiving vessel (full visibility)

Air supply

Built-in oil-free air compressor

Control

PLC with color touch screen; inlet/outlet temperature, airflow, air pressure, pump speed and de-blocking frequency

Electrical

220 V, 50 Hz, electric heating

03 · RY-LPG-5 Laboratory Centrifugal Spray Dryer — production atomization at pilot scale

High-speed centrifugal atomization · Water evaporation 5 L/h

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RY-LPG-5 — SUS304 drying chamber with sight-glass door and cyclone separator · evaporation 5 L/h

The RY-LPG-5 uses a high-speed centrifugal disc atomizer — the same atomization principle found on full-size production towers. Feed is thrown from the spinning disc into a fine, uniform mist that meets co-current spiral hot air in a SUS304 stainless steel drying chamber, drying in 5–15 seconds before powder is separated in the cyclone.

Because the atomization mechanism mirrors production centrifugal dryers, pilot runs on the RY-LPG-5 scale up with far fewer surprises — a key advantage for dairy, plant extracts, ceramic slurries and other feeds that will eventually run on disc-atomizer production lines. A sight-glass access door on the chamber lets you monitor the process, while the peristaltic feed pump gives precise, adjustable dosing.

Parameter

Value

Water evaporation

5 L/h (5 kg/h)

Atomization

High-speed centrifugal disc atomizer (up to 30,000 rpm)

Feed system

Peristaltic pump, continuously adjustable

Air flow

Co-current, spiral hot-air distribution at chamber top

Drying chamber

SUS304 stainless steel with sight-glass access door

Powder collection

Single-stage cyclone separator, typical recovery ≥95%

Drying time

5–15 seconds

Control

PLC with touch screen, automatic inlet/outlet temperature control

Heating

Electric heater

Specifications shown are standard configuration values. Full datasheets, electrical options and custom configurations are available on request — contact Ruiyuan Machinery to confirm the exact specification for your process.

04 · RY-1500 vs RY-LPG-5 at a glance

Feature

RY-1500

RY-LPG-5

Evaporation

1.5 L/h

5 L/h

Atomization

Two-fluid nozzle

Centrifugal disc, up to 30,000 rpm

Drying chamber

Transparent borosilicate glass

SUS304 stainless steel with sight glass

Process visibility

Full — chamber, cyclone and collection visible

Via chamber sight-glass window

Minimum batch

Very small (from ~50 mL) — ideal for precious samples

Larger pilot batches

Drying time

1.0–1.5 s

5–15 s

Best suited for

Formulation screening, micro-batches, teaching labs

Pilot trials and small-batch production mirroring disc-atomizer lines

05 · Which unit belongs in your lab?

Choose the RY-1500 if…

Your work is early-stage and sample-driven.

Choose the RY-LPG-5 if…

You are scaling up — or already drying on disc atomizers.

06 · Proven across industries

Ruiyuan lab spray dryers are used by food and beverage producers, extraction companies, universities and research institutes to powder a wide range of feeds: dairy and milk powder; plant and herbal extracts; flavors and aromas; coffee and tea; pharmaceuticals and bio-actives; enzymes and probiotics; egg and protein powders; ceramic slurries; chemicals and materials; polymers and resins.

Tell us what you are drying

Send Ruiyuan Machinery your feedstock type, solids content and target powder properties. Our engineers will confirm the right model and configuration — and you can validate it with a trial run before you commit to scale-up.

Request a Quote — RY-1500 · RY-LPG-5 · Custom lab drying solutions

Ruiyuan Machinery — laboratory spray dryers, pilot dryers and complete spray drying lines. Specifications subject to configuration; contact us for the latest datasheet.

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