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Rambutan Seeds (dry)

Protocol number:	M260156
Industry:	Foodstuffs
Feed Size:	1.0 cm
Desired Fineness:	90.0 % < 2 mm
Quantity:	15 g
Recommendation:	The shipped seeds were relatively dry and therefore easy to grind. We recommend using our Cutting Mill P-29 for smaller amounts of sample.

Result 1

	Mini Cutting Mill PULVERISETTE 29 speed: 3000 revolutions per minute
Equipment:	material: hardened stainless steel rotor: Rotor with straight cutting edges sieve insert: 2 mm square perforation
Feed quantity:	9 g
Feed Size:	15 mm
Grinding time:	7 seconds
Final fineness:	majority < 1,5 mm
Comments:	For our trial, we used the larger 2 mm square perforated sieve insert, which would not be clogged with sample this fast (compared to trapezoidal perforations), especially if the seeds contain a lot of oil, fat or moisture. We always fed 1-2 seeds at a time and used the sample pusher to guide the sample into the rotor which was spinning with 3000 rpm (reduced speed). After ~ 7 seconds, all seeds were fed and ground successfully. The grinding sound vanished almost instantly after the last seed was fed. During the feeding process a little bit of dust escaped the feeding funnel. Only dust remained inside the grinding chamber. Cleaning was performed rapidly by vacuuming with a softer brush. Also, compressed air would be useful to blow off last traces of dust.
Pictures:	Original seeds
	Opened grinding chamber after 7 seconds
	Output < 2 mm fine