AO Spencer 935 Automatic Knife Sharpener

The AO Spencer 935 Automatic Knife Sharpener, refurbished with a meticulously repaired lid, extends new life into microtome knives with remarkable performance and precision - a rare find indeed. This state-of-the-art device is outfitted with two quality blades, including grinding emulsion and glass powder for your immediate use.

This utility integrates a host of features intended for safe, rapid, and highly convenient onsite microtome knife resharpening. In lieu of conventional manual sharpening, it offers an automated process that dispenses with surface irregularities and guarantees a uniform bevel angle, thus restoring the edge of a previously used knife to the sharpness of a brand-new or factory refurbished one.

Despite its robust capabilities, the AO Spencer 935 remains compact and portable, making it exceptionally user-friendly. You can rely on its steady operation, low maintenance, and dependable service over its lifetime. This knife sharpener is enclosed in a compact cabinet characterized by a premium finish, which not only presents an appealing aesthetic, but also renders the equipment resistant to chipping, abrasion, and chemical damage.

Designed with comfort in mind, the instrument is mounted on rubber feet to dampen vibration, ensuring quiet and unobtrusive operation. The blade is fastened in the knife holder at a fixed angle to initiate the resharpening process. To optimize safety and cleanliness, the instrument's top cover remains closed during operation, preventing dust and grinding particles from spreading around your work area.

The knife sweeps against a high-frequency glass plate and, after a specific number of strokes on one side of the knife-edge, it automatically flips the knife and sharpens the opposite edge for an identical interval. This stroking sequence repeats indefinitely for the duration programmed into the automatic electric timer. The timer also facilitates autoreverse at preset intervals, promoting uniformity in the refinement of each knife-edge.