German DESTACO shaft DESTACO model DESTACO price

The DESTACO shaft refers to a shaft whose operating speed is higher than the first critical speed and lower than the second critical speed. There are also shafts with speeds higher than the second critical speed. To reduce vibration, this type of shaft should be used when high operating speeds are required. A safety margin must be considered during design; generally, the operating speed is controlled to be >1.3 times the first critical speed, and<70% of the second critical speed. When accelerating a flexible shaft, it must reach and pass through the first critical speed. Due to the presence of various damping factors such as the surrounding medium, support bearings, and internal material friction, if the speed increases too rapidly, the shaft deflection will not have time to reach its maximum before quickly exceeding the first critical speed, causing the operation to tend towards balance.

DESTACO shaft introduction

A flexible shaft is a device used to transmit rotational motion between two objects that are not fixed relative to each other. It consists of wire rope or coils. The flexible shaft is pliable but has a certain torsional stiffness. A flexible shaft may have no covering; it can bend but does not rotate on its own. It may transmit considerable power, or only motion with very low power. Flexible shafts are commonly used in plumber's snakes. A flexible shaft is a common accessory for handheld rotary tools and an integrated component of rotary tools with remote motors, known as "flexible shaft tools." Flexible shaft tools are frequently used in dentistry, the jewelry industry, and other industrial sectors.

DESTACO shaft advantages

Motorized spindles offer advantages such as compact structure, light weight, low inertia, low noise, and fast response. They also feature high speed and high power, simplifying machine tool design and facilitating spindle positioning, making them an ideal structure for high-speed spindle units. Motorized spindle bearings utilize high-speed bearing technology, offering wear and heat resistance, with a service life several times that of traditional bearings.

DESTACO shaft maintenance

1) After daily work, operators must use a vacuum cleaner to remove debris from the rotor end of the motorized spindle and the motor terminal blocks to prevent accumulation. This avoids debris entering the bearings, which accelerates wear of the high-speed bearings, and prevents debris from entering the terminal blocks, which could cause motor short circuits and burnout. 2) Every time the tool is changed on the motorized spindle, the operator must unscrew the collet nut and chuck. Directly pulling out the tool for replacement is prohibited! Operators should develop the habit of thoroughly cleaning the collet and nut after tool removal. 3) After powering on each day, the operator must check the status of the motorized spindle's cooling water flow. Check whether the water pump is working normally, whether the cooling water is contaminated by scale or microorganisms, and whether the piping status is normal. Normal circulation of cooling water must be ensured. It is strictly prohibited to start the motorized spindle without cooling water flowing through it. The motorized spindle can only operate in good condition under proper cooling. If water pipes have sharp bends causing poor flow or are blocked by dirt, the motorized spindle will fail to work properly, affecting machining results.

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