Advanced Cleanroom Cranes for Precise, Safe Handling in GMP Workshops

Cleanroom crane are a special type of equipment designed to prevent the generation of dust while transporting heavy objects in cleanrooms, typically used in GMP workshops. The operating environment of dust-free cranes generally requires a high level of cleanliness, with little to no dust. The interior is usually white. Cleanroom-specific cranes are generally classified by cleanliness levels, such as Class 100, Class 1000, Class 10000, and Class 100000. Class 100 requires high cleanliness, while Class 100000 requires relatively lower cleanliness.

Cleanroom crane applications:

Cleanroom crane integrate technology, construction, equipment automation, and other technologies, mainly to meet the strict requirements of the production environment and quality in the fields of chemical lifting, military lifting, aerospace lifting, electronic equipment lifting, pharmaceuticals, biotechnology, medical care, laboratories, and so on. Compared with cranes used in other industries, the main features of cleanroom cranes are clean, wear-resistant, low failure rate, wide speed range, and accurate positioning. Therefore, cleanroom cranes are a prerequisite for mass production in industries with high environmental requirements such as LCD panels, photovoltaics, microelectronics, semiconductors, food, and pharmaceuticals.

Case: clean explosion-proof bridge cranes

Clean and explosion-proof fully automatic type overhead crane developed and produced for the semiconductor grade polysilicon project of Jiangsu Xinhua Semiconductor Materials Technology Co. To meet the requirements of the production process, the crane can automatically run the reduction furnace and the silicon rod tool from the reduction furnace platform, cleaning platform, transit platform, removal of the rod tool, etc. between the positions according to the set working route, accurate positioning. It haadvanced technologies such as high sealing and explosion-proof drive mechanisms, maintenance-free self-lubricating type bearings, ands. Motor, reducer, brake, and electrical monitoring in one compact design.

The crane is to meet the new production process with an automatic, clean, explosion-proof function of the crane. The use of the environment for the semiconductor materials workshop, dust-free design, air cleanliness level 4 (national standard 7) (i.e., no more than 10,000 particles per cubic meter of 0.1μm size). At the same time the workshop there are flammable and explosive gases, crane explosion-proof class dIICT4.

The crane adopts a lightweight, maintenance-free design, with a large number of anti-static, wear-resistant, and corrosion-resistant materials, wheels made of stainless steel, stainless steel grooves on both sides of the track, the reducer is fully enclosed, high sealing without oil leakage pollution, high protection level fanless explosion-proof motor, double-sealed brake can effectively prevent the motor from transmission wear and tear to produce pollution particles leaking. The wheel set of the truck is fully enclosed, stainless steel wheels, and other parts with high anti-rust surface treatment can effectively prevent the metal material from rusting and pollution, and self-lubricating sealed bearings to avoid lubrication pollution.

Product Features

1. Clean dust removal

The use of high-pressure anti-static spraying technology, and structure sealing welding technology makes the whole machine with non-stick dust, non-dust-producing characteristics. Dust particles and lubricating oil dirt, automatically through the permanent magnetic machinery, explosion-proof electric dust collector, mechanical oil collection tray, and other devices to achieve clean-up work. Ultra-low noise environment experience.

2. Safety and explosion-proof

Under the premise of clean and intelligent, the safety and explosion-proof function adds another highlight, the action in any space is in the explosion-proof state, making the crane operation more safe and reliable.

3. Intelligent operation

With fully automatic unmanned operation, anti-swing automatic precise positioning, automatic hook unloading, and other functions, positioning accuracy can be achieved in units of less than millimeters.

4. Functional unmanned

Equipped with humanized functions such as automatic fault alarm, automatic detection of the cause of the fault, and alarm for setting the life span of parts.

The running mechanism of big and small cars adopts laser barcode positioning, the laser barcode positioning reader of a small car is installed on the small car, and the barcode belt is installed on the web of the main beam of a big car. The large car positioning laser positioning reader is mounted on the end beam, and the barcode belt is mounted on the U-shaped groove for collecting powder chips.

The travelling control has two operation modes:

1. Automatic operation mode:

Site staff need to lift the operation, through the explosion-proof remote control manipulation at the scene will be manually hooked to the spreader, after the completion of the explosion-proof remote control select the appropriate function, after the completion of the sound and light alarm prompted by the start of the operation. Operation of the key point by the site operator with the explosion-proof remote control confirmation, the crane in accordance with the pre-set path automatically to the target location directly above the lifting of the reduction furnace or unloading the bar tool action, the action is completed, the alarm and prompt the action has been completed.

In the process of running, if you find a problem, you can choose to pause, to be eliminated after the problem, press the continue button can continue to perform. In case of emergency failure, the emergency stop button of the remote control can be selected to stop the operation of the equipment to avoid failure.

2. manual operation mode

The explosion-proof control cabinet selector switch is rotated to ‘manual’ control mode, the site staff can operate the crane through the explosion-proof buttons on-site manual operation, and control the manual operation of various institutions. Remote control and handle control are interlocked, and only one control mode can be used at the same time.

Other Types of Cleanroom Cranes