Milk Powder Spray Dryer 150kg/h Evaporation Instant Soluble 95 Percent Yield

Milk powder buyers judge a dryer by three numbers: solubility index, scorched particle count and bulk density consistency. The LPG-150 milk powder spray dryer is configured for dairy duty so that all three stay inside specification. Concentrated milk at 45% to 50% solids is atomized by a 150 mm rotary disk running at 18000 rpm, the inlet air is held below 350 °C and the outlet between 80 and 90 °C, and the droplet is dried in 5 to 40 seconds, which is short enough to keep the protein native and the powder instantly soluble.

Because the milk powder spray dryer dries each droplet in free fall, the particle keeps a spherical shape with trapped air, which is what gives the powder its light bulk density and fast wetting behaviour. Cyclone collection recovers at least 95% of the powder, and the optional fluid bed after-dryer and vibratory cooler bring the powder to packaging temperature without a separate cooling room.

• 150 kg/h Evaporation Capacity: the milk powder spray dryer removes 150 kg of water per hour, which corresponds to roughly 300 to 350 kg/h of 45% solids concentrate in a single pass.
• Instant Soluble Spherical Powder: free fall drying inside the tower keeps the droplet shape, so the powder wets and disperses immediately instead of floating or forming lumps in water.
• Native Protein Protection: a 5 to 40 second residence time with the outlet held at 80 to 90 °C keeps the particle temperature low, so whey protein nitrogen index and solubility index stay inside dairy specification.
• 95 Percent Yield With Cyclone: a high efficiency cyclone followed by a bag filter keeps powder loss under 5%, which matters directly on a dairy cost sheet.
• Adjustable Bulk Density: disk speed, inlet temperature and feed solids are the three settings used to tune bulk density and particle size for pouch, tin or bag filling.
• Food Grade Construction: 304 or 316L stainless steel contact parts, polished welds, CIP spray balls and a cleanable plenum, so the milk powder spray dryer satisfies dairy hygiene audits.

The milk powder spray dryer is used in dairy and dairy analogue production lines:

1. Whole milk, skim milk and whey powder for retail tins, pouches and industrial ingredient supply.
2. Infant formula base powder and creamer, where solubility and particle structure are critical.
3. Yoghurt powder, cheese powder and butter powder with controlled fat dispersion.
4. Plant based milk such as soy, oat and coconut powder for beverage and bakery use.
5. Ice cream mix, maltodextrin carrier blend and dairy based flavour powder.

Because the milk powder spray dryer is delivered with a cyclone, a bag filter and a control cabinet on a common skid, a dairy processor can install it next to an evaporator and start production within two weeks of delivery.

Will the 350 °C inlet temperature scorch the milk? No. The droplet is cooled by evaporation as soon as it enters the tower, so the particle surface stays near the wet bulb temperature. The outlet temperature of 80 to 90 °C is the parameter that governs heat load, not the inlet.

How is instant solubility achieved? Two levers: the 150 mm disk at 18000 rpm produces a fine, uniform droplet, and the short residence time prevents casein denaturation. A lecithin agglomeration step can be added when the powder must disperse in cold water.

What is the powder yield? At least 95% with the standard cyclone plus bag filter. A secondary cyclone or a wet scrubber is added when the powder value justifies the extra recovery.

Can the milk powder spray dryer run whey and creamer as well? Yes. Whey and creamer run at different solids and fat levels, and both recipes are stored in the control system, so a product change is a matter of switching the recipe and cleaning the feed line.

The milk powder spray dryer ships in sections: tower, cyclone, bag filter, air heater, fan, feed pump and control cabinet, each braced inside an export plywood case with a flange and gasket list. Air volume, temperature control, atomizer balance and electrical safety are tested before dispatch, and documentation includes material certificates, food contact compliance statements and a CIP procedure. The warranty covers 12 months, and a spare kit with atomizer, nozzles, filter bags and pump seals is available together with installation supervision and operator training.