Sharpening system
S-22
Premium sharpening unit

The node is designed for convenience of use. It allows setting up the machine based on anthropometric data of a person and their workspace (table height, chair height), and also ensures the necessary and comfortable height of the knife fixed in the clamps above the working surface of the table, making work with long knives more convenient and safe. This node is made of a brass axis-bushing and a steel handle screw. The use of these materials provides smooth operation and absence of corrosion in the mating parts. For reliable fixation in the desired position, we used a splined connection.

The node is made of a stainless steel shaft and a bronze bushing. This is a relatively simple design made with precision accuracy, which allows us to achieve a 180-degree rotation with constant repeatability and an error of no more than 0.05 degrees. The use of a friction pair made of bearing bronze (bushing) and a stainless steel shaft provides this joint with high wear resistance, smooth operation, and ensures a long service life.

This node consists of several parts. Between the frame and the lifting rod, a "dovetail" connection is used. Since this connection represents a pair of sliding guides, one of the guides is made of bearing bronze (dovetail), and the second (lifting rod) is made of aluminum and coated with hard anodizing. The use of bronze in this connection ensures durability and reliability of this node. For tension adjustment (for selecting clearances), two setting screws are provided, which are located on the cover of the sharpener body.
A toothed rack made of LS59 brass is integrated into the lifting rod, which engages with a gear made of BRAZH9 bronze. The use of these materials is due to their durability and increased resistance to wear in this connection. The axis on which the gear is mounted is made of AISI304 stainless steel, providing reliable protection against corrosion. The entire node is integrated into the frame and is well protected from dirt entering the mechanism.
For the first time in sharpening devices, we have applied a disk friction brake system. The rod is fixed so accurately that when closed, it does not shift and does not affect the setting of the sharpening angles in any way.
The entire system allows for very convenient and accurate adjustment and fixation of the lifting rod position.
A scale of angle change with a division value of 0.5 degrees is applied directly to the lifting rod, right in front of the user’s eyes. This is the most convenient location for it. For more accurate calibration, we have provided an adjustment arrow.
For ease of use, metal plates for an electronic angle meter are also installed on the sharpener body and the holder of the bars.

This mechanism is built on rolling bearings, which provide smooth rotation. Additionally, a bronze bushing is used as a sliding bearing, allowing for precise and reliable movement.

This component is manufactured from a high-precision, hardened shaft with a diameter of 8 mm. To facilitate handling and maintenance, it is designed to be split into two separate parts.

Made of three parts. The range of stones in length from 40 mm to 220 mm inclusive. The use of the middle part allows for the use of long and thin sharpening bars, avoiding unnecessary bending. For the convenience of changing sharpening stones, one of the parts is spring-loaded.