GJ Series Sealed Laboratory Sample Pulverizer, 100 g per Bowl and 120-200 Mesh (CAT#: STEM-BC-4086-ZJF)

The GJ Series is a sealed laboratory sample pulverizer for processing hard metallic and nonmetallic ores and mineral raw materials. It is suitable for production inspection and laboratory sample preparation in geology, mining, metallurgy, coal, chemicals, building materials, research institutes, and educational laboratories. The machine uses a vibration-grinding operating principle. Each grinding bowl contains a crushing ring and crushing hammer that impact and grind the sample during high-speed operation. Dry and brittle materials can normally be reduced to powder within one to three minutes according to the listed specification. The standard output fineness is 120-200 mesh, while special finer configurations require advance ordering. Each bowl accepts less than 100 g of material with a feed particle diameter below 13 mm. The sealed structure limits sample loss and supports cleaner laboratory operation. A compact mechanical design, adjustable timer, and accessible construction simplify operation and maintenance.

Models: GJ100-1, GJ100-2, GJ100-3, GJ100-4, GJ100-5, and GJ100-7
Power supply: 380 V
Motor power: 1.1 kW or 1.5 kW as listed
Feed particle size: <Ø13 mm
Feed capacity per bowl: <100 g
Output fineness: 120-200 mesh
Operating noise: <75 dB
Processing time: 1-3 min
Time control range: 0-15 min
Sample loss rate: <1%
Applicable materials: Dry and brittle metallic ores, nonmetallic ores, minerals, coal, and related samples
Listed net weights: 150, 165, 210, and 300 kg
Listed product dimensions: 500 × 570 × 930 mm, 540 × 610 × 980 mm, and 590 × 720 × 1030 mm

Sealed vibration-grinding system
Crushing ring and hammer mechanism
Up to 100 g per bowl
Rapid one-to-three-minute pulverization
120-200 mesh output
Low sample loss
Adjustable processing timer
Compact maintenance-friendly structure

STEM-BC-1003-ZJF
STEM-BC-1010-ZJF
STEM-BC-1023-ZJF
STEM-BC-1026-ZJF
STEM-BC-1076-ZJF