Tokio Keiki SQP2-21-1D-18 Vane Pump
The SQP2-21-1D-18 is a fixed displacement single vane pump manufactured by Tokio Keiki, designed for industrial hydraulic systems that demand high efficiency and exceptionally low noise levels. As part of the SQP series, this pump is a preferred choice for indoor machinery—such as injection molding machines and machine tools—where maintaining a quiet working environment is essential. The SQP2-21 model provides a higher flow capacity within the SQP2 frame size, offering a robust solution for medium-flow hydraulic power units.
Technical Specifications and Performance
The SQP2-21-1D-18 is engineered for consistent performance under industrial loads. According to the manufacturer’s technical data:
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Series: SQP2 (Single Pump).
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Delivery (at 1200 r/min, 0 MPa): 21 USgpm (Approx. 67.5 $cm^3/rev$).
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Maximum Operating Pressure: 17.5 MPa (175 bar).
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Maximum Speed: 1800 r/min.
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Shaft Type: 1 (Parallel Key).
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Outlet Port Position: D (180° from inlet / Opposite side).
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Design Number: 18 Series.
Key Features for Industrial Applications
Advanced Noise Reduction Technology
The SQP series is famous for its «silent» operation. The SQP2-21-1D-18 utilizes a multi-vane design and optimized internal timing to minimize flow pulsation and pressure ripples. This leads to a significant reduction in both vibration and audible noise, even when operating at maximum pressure and speed.
Flexible Configuration (D-Position)
The «D» designation in the model code indicates that the outlet port is positioned 180° from the inlet. This straight-through porting arrangement allows for more flexible piping layouts in tight machine compartments, potentially reducing the number of fittings required and simplifying the overall hydraulic circuit design.
