Coal mixer
In the coal mixer of the colliery Prosper-Haniel (Ruhrkohle AG) the mined coal is mixed in order to provide a consistent quality…
Stone saw – circular saw blade
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01:42
About the sound
The saw blade has a diameter of 1.5 meter
Saw blade width = 10 milimeters
Every cut is 11 centimeters deep
Recording consist of the first cut and shift to the next
Sound level: 90-95 peaks of 102 dB measured from five meters.
Manufactor: SIMEC, Italy
Type: Disk 1700 SA, Forest
Recorded at Borghamns Stenförädling AB, Borghamn, a family business founded in 1951.
The company is quarrying limestone and Kolmården marble.
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