The BAXIT mini spray dryer (BXT-2000MLH) is a compact, self-contained laboratory spray drying machine that converts liquid samples into uniform dry powder in a single pass. A large color LCD touch screen offers fully automatic and manual control modes, while real-time PID temperature control holds the drying air anywhere from 30°C to 300°C with ±1°C accuracy. The minimum feed volume is just 50 mL, so precious, heat-sensitive materials such as enzymes, antibiotics, serum, and flavor extracts can be processed without sacrificing yield. A refined two-fluid atomizing nozzle and a transparent high-borosilicate glass drying tower deliver a contamination-free process, and the built-in oil-free air compressor keeps operating noise below 60 dB. With water evaporation of 1500–2000 mL/h and more than 98% of the finished powder falling within a single particle size range, this small spray dryer for laboratory use gives food, pharmaceutical, and materials researchers the repeatable results they need before scaling up to production.

Spray drying is a continuous, single-step unit operation that transforms a liquid feed — a solution, emulsion, or suspension — directly into a dry particulate powder. The BXT-2000MLH implements the process in four physical stages: metered feeding, atomization, droplet evaporation, and powder collection.

In the feeding stage, a 4-joint rotor pump with an imported silicone peristaltic tube delivers the liquid at a controlled rate, and the feed volume is adjustable down to a minimum sample volume of 50 mL. The liquid then enters the atomization stage, where a refined two-fluid (gas–liquid) atomizing nozzle uses compressed air at 2–3 bar working pressure to shear the stream into micron-scale droplets. That compressed air is supplied by a built-in 0.8 kW imported oil-free air compressor with a maximum gas production of 4.2 m³/h. Because the droplet population follows a normal size distribution, the final powder exhibits excellent flowability.

In the evaporation stage, the droplets enter the drying tower and meet a heated air stream generated by a 0.375 kW air blower with a maximum air volume of 13 m³/min and a maximum wind pressure of 1020 Pa. The average drying time is only 1.0–1.5 seconds, which minimizes the thermal history of every particle. Inlet temperature is set between 30°C and 300°C, and a real-time PID constant temperature controller holds the set value with ±1°C accuracy and 0.1°C adjustment resolution. In the collection stage, dried powder is separated and recovered, aided by an innovative tower-wall purge device that raises the material recovery rate. The entire spraying, drying, and collecting system is made of transparent high-borosilicate heat-resistant glass, so the process runs in a pollution-free environment and every stage stays visible to the operator, while the low-noise design — below 60 dB — keeps the unit comfortable for shared laboratory spaces.

In short, the BXT-2000MLH is a complete atomization-to-powder system — feed, atomize, dry, and collect — packaged in a bench-scale footprint of 550 (W) × 650 (D) × 1200 (H) mm, weighing 125 kg and drawing 4 kW at 220 V/50 Hz.

Why choose a dedicated mini spray dryer when ovens, freeze dryers, and rotary evaporators already exist in most laboratories? Because those tools fail exactly where R&D decisions are made. Here are four recurring pain points and how the BXT-2000MLH answers each one. Each of these problems quietly costs R&D teams weeks of rework and thousands of dollars in wasted material.

1. Sample loss. Early-stage formulations are often measured in grams — a costly API, a rare enzyme, an expensive flavor extract. Production-scale dryers cannot handle such tiny batches, forcing researchers either to scale up prematurely or to lose material in dead volumes. With a minimum feed of just 50 mL, the BXT-2000MLH is a true laboratory spray dryer with small sample volume capability, letting you characterize a candidate without wasting it.
2. Thermal damage. Enzymes, antibiotics, hormones, serum proteins, and natural extracts degrade rapidly above their critical temperature. Because the average drying time here is only 1.0–1.5 seconds and the PID loop holds temperature within ±1°C across the full 30–300°C range, heat exposure is brief and precisely controlled — exactly what a mini spray dryer for heat-sensitive materials must deliver. This gentleness preserves the activity, aroma, and color of sensitive actives, which matters as much as yield for high-value formulations.
3. Inconsistent particle quality. Freeze-dried or milled powders often show wide particle size distributions, poor flowability, and electrostatic behavior that complicate tableting, capsule filling, and dissolution. The two-fluid atomization in the BXT-2000MLH produces a normally distributed droplet population, and more than 98% of the finished dry powder falls within the same particle size range — uniform, free-flowing powder, batch after batch.
4. Contamination and safety. The transparent high-borosilicate glass drying system runs pollution-free, the oil-free compressor eliminates lubricant carry-over, and the inlet fiber-cotton filter keeps the sample pure (a nitrogen device is available for benzene, methanol, and ethanol feeds). The through-needle nozzle cleaner automatically clears blockages, and the shutdown protection function stops everything except the fan at the press of a button, preventing burn-out from misoperation.

Beyond these four advantages, the machine is genuinely easy to run. One-button start-up, a large color LCD touch screen showing inlet and outlet temperature, peristaltic pump speed, air volume, and needle frequency, plus two operating modes — fully automatic or manual — mean that even a first-time operator can run a spray drying machine confidently. Switching between automatic and manual modes mid-run lets process engineers fine-tune conditions without restarting, shortening development cycles and reducing operator error. That combination of material economy, gentle drying, uniform output, and operational safety is why food, pharmaceutical, and materials laboratories choose this bench-top spray dryer as their daily workhorse.

Knowing the parameters is one thing; knowing how to apply them is what separates a vendor from a partner. The BXT-2000MLH is used in three industrial R&D workflows where spray drying decisions directly influence scale-up success.

Food and flavor development. The machine routinely processes milk powder, egg yolk, soy sauce, coffee, starch, protein isolates, and flavor extracts. A typical milk powder run uses an inlet temperature around 170–180°C while the PID controller holds ±1°C stability; because the average drying time is only 1.0–1.5 seconds, lactose and whey proteins escape the Maillard browning that ruins color and flavor in slower dryers. Sticky products such as soy sauce solids benefit from the tower-wall purge device, which raises the material recovery rate, and the transparent glass tower lets the developer watch exactly how a change in feed rate alters the particle cloud. For coffee and flavor extracts, the inlet filter and borosilicate glass system also protect volatile aromatics from oxidation.

Pharmaceutical and biotech R&D. Antibiotics, enzymes, hormones, serum, and vaccine-adjacent actives demand gentle, reproducible drying. Operators typically set a milder profile — for example, 110–130°C inlet with careful outlet temperature monitoring — and rely on the 0.1°C temperature adjustment resolution to replicate yesterday's drying curve exactly — an essential capability for batch records, stability studies, and regulatory documentation. The 50 mL minimum feed makes it feasible to screen a new candidate with a few milliliters of drug substance, while the 4-joint rotor pump with its imported silicone peristaltic tube delivers steady, low-pulse feeding even for viscous suspensions. For organic solvents such as benzene, methanol, or ethanol, the optional nitrogen device provides a safer inert atmosphere.

Materials science. The BXT-2000MLH is used to produce ceramics, ferrite, pigments, dyes, detergents, surfactants, copying powders, magnetic materials, metal powders, photosensitive materials, and fuel-cell catalyst precursors for automotive and marine propulsion. For abrasive slurries such as ferrite or ceramic feeds, the optional silicon carbide nozzle — roughly ten times more wear-resistant than stainless steel — dramatically extends nozzle life. Operators control droplet size through atomization air pressure: the built-in 0.8 kW oil-free compressor delivers up to 4.2 m³/h at 2–3 bar, while the 0.375 kW blower maintains 13 m³/min of drying air at up to 1020 Pa. The complete system draws only 4 kW at 220 V/50 Hz, weighs 125 kg, and occupies 550 (W) × 650 (D) × 1200 (H) mm, so it fits beside a fume hood or on a purpose-built stainless steel rack with no utilities beyond a standard 6 mm air connection. The 220 V/50 Hz single-phase supply and 4 kW power draw also simplify installation in laboratories without three-phase power.

Two operating modes cover every workflow. Fully automatic mode starts the peristaltic pump only after the set temperature is reached, displays a live running animation on the touch screen, and executes a safe one-button shutdown. Manual mode lets you adjust process parameters mid-run — inlet temperature, outlet temperature, pump speed, air volume, and needle frequency — while every value updates in real time. This combination of application coverage and parameter transparency is why procurement teams treat the BXT-2000MLH as a process partner rather than a black box.

A1. The minimum feed is just 50 mL, thanks to the adjustable 4-joint rotor peristaltic pump with an imported silicone peristaltic tube. This makes the BXT-2000MLH ideal for precious or scarce samples such as APIs, enzymes, and flavor extracts, letting researchers complete full spray drying characterization without wasting valuable material.

A2. The drying temperature is settable from 30°C to 300°C with real-time PID constant temperature control. Heating accuracy is ±1°C across the entire range, and the 0.1°C adjustment resolution ensures precise, repeatable drying curves for both gentle low-temperature runs and high-temperature applications.

A3. Yes. The average drying time is only 1.0–1.5 seconds, so each droplet's thermal exposure is extremely brief, while the PID loop maintains a stable temperature throughout the run. This short-residence, precisely controlled process protects thermolabile actives like enzymes, antibiotics, hormones, and serum from degradation.

A4. Water evaporation capacity is 1500–2000 mL/h, depending on feed properties, inlet temperature, and atomization air pressure. The 0.375 kW blower supplies up to 13 m³/min of drying air to sustain the rate. This throughput suits laboratory and pilot-scale development, balancing iterative trial capacity with bench-scale precision.

A5. The refined two-fluid atomizing nozzle generates a normally distributed droplet population, and more than 98% of the finished dry powder falls within the same particle size range. The result is uniform, free-flowing powder with excellent fluidity, ideal for downstream tableting, capsule filling, and dissolution studies.

A6. A through-needle cleaner automatically clears blockages the moment the nozzle clogs, and its cleaning frequency is adjustable. The standard nozzle is 1.0 mm; an optional silicon carbide version offers roughly ten times the wear resistance of stainless steel, ideal for abrasive slurries like ceramics and ferrite.

The BAXIT mini spray dryer (BXT-2000MLH) closes the gap between bench-scale experiments and production reality. It processes as little as 50 mL of feed, dries heat-sensitive materials in just 1.0–1.5 seconds under ±1°C PID control, and delivers uniformly sized, free-flowing powder with more than 98% particle uniformity — all inside a compact, low-noise, contamination-free package that any laboratory can operate from day one. If you are developing food, pharmaceutical, or advanced material powders and need equipment that behaves like a true process partner, contact BAXIT today for a quotation, a full product catalog, or a customized configuration matched to your specific feed. Every unit is backed by BAXIT's application support, so you are never left to optimize the process alone — the conversation starts with a simple message. Our engineers will help you select the right nozzle, nitrogen option, and process parameters, and we will support you from the first trial all the way to production scale-up.