The Variable Speed Rotor Mill PULVERISETTE 14 premium line from Fritsch is ideal for efficient pre- and fine comminution of soft, medium-hard, brittle, hard-brittle, fibrous, temperature-sensitive materials and provides an extremely fast sample throughput, as well as, if desired, heavy-metal- and iron-free. The system combines two mills in one instrument and is the only Variable Speed Rotor Mill which is suitable for cutting. The Variable Speed Rotor Mill PULVERISETTE 14 premium line offers impact, shearing and cutting comminution, with higher performance, better cooling and significantly less noise than comparable instruments. With the powerful 22,000 rpm of the impact rotor, as a centrifugal mill, it ensures a fast sample throughput of 15 I/h and more, which can be further increased by the use of the Fritsch Cyclone separators. It is ideal for soft to medium-hard, brittle, fibrous and temperature-sensitive samples. Samples which are difficult to grind, or extremely temperature-sensitive samples, can be embrittled with the addition of liquid nitrogen and subsequently comminuted. By using a cutting rotor, the Variable Speed Rotor Mill becomes a Cutting Mill, ideal for efficient pre- and fine comminution of soft to hard-tough, fibrous materials and plastics. In contrast to conventional Cutting Mills, the entire grinding chamber and all grinding parts can be removed without tools, cleaned in the dishwasher and are autoclavable for sterile comminution.
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