Medical Device Motor Shaft

Unlike ordinary industrial motor shafts, the Medical device motor shafts supplied by Guanshuo manufacturers strictly follow medical standards at every step from the base material to the process. They use 316L medical stainless steel, titanium alloy, and medical-grade plastic coating base materials, fully meeting the ISO13485 and FDA medical equipment production standards. There will be no situation of heavy metal migration, and they can perfectly meet the compliance requirements for medical aseptic environment and biocompatibility. There is no need to worry about any impact on the medical environment or patients.

In response to the procurement demands for miniaturization and lightweighting of medical equipment, we adopt a design that is both miniaturized and highly rigid. It supports ultra-thin shaft diameters of 0.8 millimeters and above. It can also be designed as a hollow shaft structure. After structural optimization, it has excellent torsional stiffness. Even under high-speed and low-load conditions, it will not deform. This not only saves internal space of the equipment but also ensures operational stability.

We adopt an oil-free self-lubrication design to prevent oil contamination at its source, meeting the cleanliness requirements of the medical environment. The low friction combined with significant reduction in component wear enables a fatigue life of over 20,000 hours, achieving long-term maintenance-free operation and completely resolving the procurement pain points of difficult maintenance and high maintenance costs for medical equipment. In terms of details, the key mating parts have tolerances reaching IT4-IT5 level, with radial runout, coaxiality, and other accuracies reaching micrometer levels. The operating noise is ≤ 30 decibels, without vibration or interference, and is fully compatible with the precise operation requirements of medical equipment.

The surface treatment layer of the shaft is dense and stable, capable of withstanding alcohol, iodophor wiping and high-temperature steam sterilization. Even after repeated disinfections, there will be no peeling of the coating or rusting of the substrate. It firmly maintains the protection line of the medical sterile environment, and there is no need to worry about damage to the motor shaft during the disinfection process.

Product Usage

Our medical device motor shaft fully meets the precise, sterile, low-noise and maintenance-free requirements of medical scenarios. It is widely used in various high-end medical equipment and is the core component of precise transmission in medical devices. It can meet the purchasing needs of various medical scenarios and help medical equipment operate stably and safely.

Core application 1: Precision diagnostic equipment.

For example, medical ultrasound machines, blood analyzers, biochemical analyzers, etc. These devices have extremely high requirements for transmission accuracy, operational stability, and aseptic conditions. Even the slightest deviation could affect the diagnostic results. Our motor shafts meet the standards for accuracy, operate without noise or vibration, ensure precise operation of the equipment, and can withstand repeated disinfection, thus enabling the long-term stable use of diagnostic equipment.

Core Application 2: Minimally invasive treatment equipment.

For instance, minimally invasive surgical instruments, interventional treatment equipment, etc. Most of these devices require a miniaturized and lightweight design. The ultra-thin shaft diameter and hollow shaft structure can perfectly meet the requirements of the equipment. The high rigidity and no deformation characteristics can ensure precise transmission during the surgery, the oil-free design avoids oil contamination, and ensures a clean and sterile surgical environment.

Core Use 3: Rehabilitation Care Equipment.

For example, rehabilitation robots, portable care instruments, etc. These devices need to operate stably for a long time. The maintenance-free design can significantly reduce the after-sales cost. The low noise and no vibration features can enhance the patient's usage experience. Meanwhile, the characteristics of being resistant to disinfection and sterile, which are suitable for the hygiene requirements of the rehabilitation care environment.

Notes for Attention

To ensure the long-term stable operation of the motor shaft and to meet the strict requirements of the medical environment, in order to extend its service life, please pay attention to the following points during the procurement and usage process. The instructions are simple and easy to understand, and no professional technical knowledge is required.

Installation Compatibility Notice:

During installation, please ensure that the motor shaft specifications are fully compatible with the equipment. Pay special attention to checking the shaft diameter, outer diameter tolerance (h6), chamfer (C0.2 to C0.5), and surface roughness (Ra0.1 to Ra0.4). Avoiding mismatched specifications can prevent assembly jams, degradation of precision, and thus ensure the smooth operation of the equipment; During assembly, handle with care to avoid collisions and scratches on the shaft surface, and prevent coating damage.

Disinfection Usage Notes:

During disinfection, alcohol, iodophor wiping, or high-temperature steam sterilization can be used. It is strictly prohibited to use corrosive disinfectants to avoid damaging the coating on the shaft surface and the substrate. After repeated disinfection, simply check if there is any peeling of the coating or scratches on the shaft surface. If any abnormalities are found, replace it immediately to avoid affecting the sterility and operational performance.

Operating Instructions:

This Medical device motor shaft is designed with oil-free self-lubrication. During operation, no additional lubricating oil needs to be added, to avoid oil contamination of the medical environment due to the addition of lubricating oil. It is strictly prohibited to use it under overloaded or overheated conditions (beyond the equipment's suitable temperature range) to prevent deformation and damage to the shaft, which may affect the normal operation of the equipment.

Storage and Maintenance Notes:

When storing, please place it in a dry, clean, and non-corrosive environment. Avoid moisture, direct sunlight, and corrosion. Prevent the shaft from rusting. Daily maintenance is not required to be overly complex. Just conduct regular checks on the surface condition and operation of the shaft. If any abnormalities are detected, stop the machine immediately for inspection and replacement to prevent the failure from worsening.

Compliance Usage Note:

This motor shaft complies with ISO13485 and FDA medical device production standards. It is only applicable for medical devices and must not be used in non-medical scenarios. During procurement and use, please ensure the overall compliance of the equipment to avoid the impact on medical safety due to improper usage.

Product Parameter (Specification)

Product Feature And Application

The roughness of the mating surface of the motor shaft of the medical device is Ra0.012-0.025μm, the friction coefficient is ≤0.08, it is designed with oil-free self-lubrication, and the fatigue life is ≥ 20,000 hours, meeting the procurement reliability requirements for long-term trouble-free operation of medical devices. The surface treatment layer is dense and stable, resistant to alcohol, iodophor wiping and high-temperature steam sterilization. There is no peeling of the coating or rusting of the base material after repeated disinfection, meeting the procurement protection standards for medical sterile environments. Solve the procurement pain points of difficult after-sales maintenance and high costs for medical devices.

Production Details