The Bright OTF5000 has at its heart the Bright 5040 microtome. This classic design copes with high cutting loads and still performs very favorably under conditions of low temperature. The 5040 Microtome is unique, in that it uses a rotary retracting, self-lubricating design and has a heavy cast alloy base and cutting arm. Its robust construction makes it accurate and incredibly reliable. By incorporating fixed beryllium hinges, means that all lateral motion is controlled and allows no slop or play that can result in ‘chatter’ and ‘thick and thinning’. This design eliminates any expansion or contraction problems that might arise as a result of the large range of temperature changes which take place in a cryostat.

The mechanical pawl and ratchet wheel and head-advance design guarantees accurate head advance ensuring reproducibility of section thickness. The OTF5000 cryostats are available fitted with either a standard knife holder or with a Quick Release Feather™ Blade Holder. The quick Release Feather™ Blade Holder can be easily changed for the standard knife holder and vice versa.