Guangdong Kelaisi Vacuum Technology Co., Ltd., formerly known as Shenzhen Kelaisi Compression Machinery Co., Ltd., was established in 2013. Due to development needs, the production base was moved to Dongguan Dalang Foziwa Industrial Zone in May 2025. The factory covers an area of 6000 square meters, with nearly 100 production, technical and R & D personnel, mainly producing and developing vacuum pumps, air compressors, blowers and peripheral application equipment and supporting filtration, drainage and noise reduction systems. We insist on professional technology and life-cycle maintenance services to help customers reduce energy consumption and improve the stability of gas sources, and become your trustworthy industrial fluid power system partner. Coles always adheres to the concept of casting quality with ingenuity and winning the future with integrity. Kelaisi always adheres to the principle of "customer first, service first" to provide stable, reliable, energy-saving and environmentally friendly driving force for the manufacturing industry. Kelaisi brand is deeply loved by users and has become an industry model. The company has mastered the core technology of vacuum pump industry, and its products are exported to Southeast Asia and Europe, which has a very high influence and competitiveness in the industry. Coles will continue to upgrade, improve, develop and produce more new products, and create brilliance with partners with good corporate reputation, reasonable product prices and perfect after-sales service.

Compared with other technologies, this series of vacuum pumps can save about 50% of energy consumption. It is one of the permanent magnet variable frequency screw vacuum pumps with the best energy efficiency performance on the market at present. In contrast, the mechanical equipment of oil-lubricated rotary vane pump, water ring pump and other technologies has low efficiency and high cost. In vacuum applications, approximately 90% of the electrical energy is converted to thermal energy. The integrated energy recovery system of all series of screw vacuum pumps can convert 75% of the electric energy input into heat energy without any impact on the equipment. Through the effective use of energy recovery system, you will save a lot of energy costs and get a high return on investment.

KLS series oil-free screw vacuum pump is a dry vacuum pump with advanced technology independently developed by our company. Because the screw vacuum pump does not need oil lubrication or water sealing, and the pump cavity is completely free of oil, the screw vacuum pump has incomparable advantages compared with the traditional water ring vacuum pump, the rotary vane vacuum pump, the rotary piston vacuum pump, the reciprocating vacuum pump and the water jet vacuum pump, and has the advantages of energy saving, emission reduction and low cost. Carbon environmental protection is a new trend in the development of vacuum industry. Suitable for packaging, papermaking, CNC, plastics, glass, leather, foam, printing and dyeing, PVC pipes, bottles, wood processing and meat packaging and other applications.

The oil-free screw blower is mainly composed of a chassis, a main machine, a motor, an air filter, a silencer, an oil pump, an oil tank, an oil filter and the like. Performance Advantages of Coles Oil-free Screw Blower High standard oil-free compressed air with oil content of grade 0; Lubricating oil is not involved in the compression process to ensure that the compressed air does not contain lubricating oil; Special seal design to prevent lubricating oil from entering the compression chamber; Motor frequency control, intelligent matching speed, to ensure stable exhaust pressure; The motor is controlled by permanent magnet frequency conversion to improve energy saving effect.
The main products of Coles are vacuum pumps, blowers, air compressors and supporting filters, drainers, silencers and other core components; Provide energy-saving transformation, pipeline optimization and noise reduction upgrading services for the existing vacuum and air compression system of the factory; at the same time, undertake the overall planning, construction, operation and maintenance of the vacuum and air compression system of the new factory/industrial park, and realize the one-stop turnkey project from design to delivery.