Sumitomo CQT51-100FV-S1262J-A Coolant Pump
The Sumitomo CQT51-100FV-S1262J-A 7.5kW High Pressure Water Based Coolant Pump is a pump unit for machine tool cooling systems. It is identified by the CQT51-100FV-S1262J-A model reference. The pump is designed to deliver water based coolant at high pressure. It supports chip removal, tool cooling and workpiece flushing in machining centers, lathes and other machine tools.
Coolant Pump Function
A coolant pump moves cutting fluid from the tank to the cutting zone. It provides flow and pressure to cool the tool and workpiece. It also helps flush chips away from the cutting area. Stable coolant delivery improves surface finish, extends tool life and supports efficient machining. The CQT51-100FV-S1262J-A is designed for high pressure delivery where standard low pressure pumps are not sufficient.
High Pressure Operation
High pressure coolant is used in deep hole drilling, high speed machining and difficult to cut materials. It helps break chips and reach the cutting edge. The pump must provide stable pressure and flow without pulsation. The 7.5kW motor provides the power needed for demanding applications. Users should confirm the required pressure, flow and coolant type before installation.
Construction and Materials
The pump is built with durable materials for industrial use. The housing protects internal parts from coolant and contaminants. Seals prevent leakage and maintain pressure. The motor is designed for continuous duty. The pump inlet and outlet ports must match the system piping. Correct filtration helps prevent damage from chips and debris.
Applications
Typical applications include CNC machining centers, lathes, milling machines, drilling machines and grinding machines. The pump is suitable for water based coolant and related cutting fluids. It can be used in automotive, aerospace, mold making and general engineering production. It supports high pressure cooling, chip evacuation and process stability.
Installation Notes
Installation should follow the machine manual and pump instructions. The pump should be mounted securely on a stable base. Piping should be correctly sized and supported. Suction lines should be free from leaks and air pockets. Electrical connections must match the motor voltage, frequency and phase. After installation, check rotation direction and prime the pump before operation.
Maintenance
Regular maintenance includes checking for leaks, unusual noise and vibration. Filters and strainers should be cleaned or replaced. Coolant quality should be monitored and maintained. The pump should be operated within its rated pressure and flow. Worn seals and bearings should be replaced during service. Following the maintenance schedule helps ensure reliable performance.
Conclusion
The Sumitomo CQT51-100FV-S1262J-A 7.5kW High Pressure Water Based Coolant Pump is a reliable solution for machine tool cooling. It provides stable high pressure delivery, effective chip removal and dependable operation. Correct installation and maintenance help ensure long service life.




