Dust Free Crushing Grinding Machine 50-300kg/h 60-120 Mesh 304 Stainless

A hammer mill that releases a cloud of fine dust into the room is a hygiene problem and a product loss at the same time. The 30B dust free crushing set solves both by integrating three functions in one frame: a feed hopper, a high speed crushing chamber and a dedicated dust collection fan. Material enters the chamber, is broken by the rotating hammers against a screen, and the fines are drawn into a collection box instead of escaping into the production room, so the operator works in a clean area and the recovered powder goes back into the batch.

With a 5.5 kW crushing motor turning at 3800 rpm and a screen set from 60 to 120 mesh, the grinding machine handles 50 to 300 kg/h of crystalline, granular or fibrous material, which makes it a practical unit for a tablet plant, a food spice line or a chemical workshop. The contact parts are stainless steel, the chamber opens without tools, and the screen is a simple bolt in part, so a product change takes minutes rather than a shift.

• 50-300 kg/h Capacity: the grinding machine covers pilot and mid size production in one unit, with throughput set by screen size, material hardness and feed rate.
• 60-120 Mesh Output: interchangeable screens give a powder between 60 and 120 mesh, and the screen change is a two bolt operation that needs no special tool.
• Built In Dust Collection: a 1.5 kW dust fan draws fines from the crushing chamber into a collection box, so dust does not escape into the room and product loss is recovered.
• Stainless Steel Contact Parts: hopper, chamber, screen frame and discharge are stainless steel, which satisfies GMP cleaning requirements and avoids iron contamination of the product.
• 3800 rpm Hammer Rotor: the high rotor speed produces a fine, uniform grind at a low temperature rise, which protects heat sensitive material and volatile components.
• Compact Footprint: the whole crushing grinding machine measures 1200 x 650 x 1650 mm and runs on 7 kW of installed power, so it fits a small room beside a granulation line.

The crushing grinding machine is used wherever a coarse material must be reduced to a controlled powder before the next process step:

1. Pharmaceutical raw material and granule size reduction before blending, tableting or capsule filling.
2. Herbal root, leaf and bark grinding in a traditional medicine line.
3. Food spice, sugar, salt and dried vegetable grinding where dust control is mandatory.
4. Chemical crystal, pigment cake and resin crushing with stainless contact parts.
5. Rejected tablet and granule recovery, where the material is ground back for re-processing.

Because the crushing grinding machine collects its own dust, it can be placed directly beside a blender or a tablet press rather than in a separated room, which shortens the material route and reduces manual handling between steps.

How fine can the powder go? With a 120 mesh screen the unit produces a powder with the majority of particles below 125 micrometre. Finer screens are available but reduce throughput, because the grinding machine must pass all the material through the screen opening.

Does the dust collector really recover product? Yes. The 1.5 kW fan draws the airborne fines into a collection box instead of the room, so the material is recovered and the operator is not exposed to dust. The box is emptied at the end of the batch.

Will the powder heat up during grinding? The 3800 rpm rotor keeps contact time short and the airflow cools the chamber, so the temperature rise is modest. For very heat sensitive material a lower throughput or a chilled air inlet is recommended.

How is the machine cleaned between products? The chamber cover opens without tools, the screen lifts out and the dust box is removable, so a full clean of the crushing grinding machine takes about 15 minutes.

The crushing grinding machine ships as a complete unit on a steel base inside an export plywood case, with screens, the dust box and the spare hammer set packed separately. Rotor balancing, a no load run test, electrical safety verification and a screen dimension check are completed before dispatch, and material certificates are supplied for all contact parts. The warranty covers 12 months, and hammers, screens, bearings and dust filter elements are available as a two year spare kit.