Bucher QX Series Internal Gear Pump
Description:
The Bucher QX Series Internal Gear Pump is a compact and robust hydraulic pump designed for demanding mobile and industrial hydraulic applications. As Bucher Hydraulics’ fifth-generation internal gear pump series, QX pumps use an optimized gear profile to achieve low flow and pressure pulsation, reduced operating noise, and long service life. The series offers a broad displacement range from 3 to 450 cm³/rev and can support continuous pressures up to 360 bar, depending on the model.
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Bucher QX Series Internal Gear Pumps
| Item | Specification |
|---|---|
| Product Name | Bucher QX Series Internal Gear Pump |
| Brand | Bucher Hydraulics |
| Pump Type | Internal Gear Pump |
| Series | QX Series |
| Design | Internal gear / ring gear pump |
| Circuit Type | Open circuit |
| Displacement Range | 3–450 cm³/rev |
| Maximum Continuous Pressure | Up to 360 bar |
| Maximum Intermittent Pressure | Up to 400 bar |
| Maximum Speed | Up to 3,600 rpm |
| Noise Level | < 75 dB(A), depending on operating conditions |
| Efficiency | Volumetric efficiency up to 98% |
| Drive | Fixed-speed or variable-speed drive |
| Fluid Compatibility | Hydraulic fluids; selected QX variants also support fire-resistant, biodegradable, fuel and low-viscosity fluids |
| Main Features | Low pulsation, low noise, compact design, long service life |
| Available Sizes | QX2, QX3, QX4, QX5, QX6, QX8 |
| Typical Applications | Hydraulic presses, machine tools, waste compactors, pressure die-casting machines, elevator/lift drives, power units, plastics-processing machinery, stackers and forklifts |
| Configuration Options | Tandem and multiple pumps, mounting valves, pipe flanges |
| Supplier | YsHydraulic |
| Product Availability | Original branded hydraulic components subject to model and stock confirmation |
| Series | Displacement | Continuous Pressure | Intermittent Pressure | Max. Speed |
|---|---|---|---|---|
| QX2 | 3–16 cm³/rev | 320 bar | 400 bar | 3,600 rpm |
| QX3 | 10–32 cm³/rev | 360 bar | 400 bar | 3,400 rpm |
| QX4 | 20–63 cm³/rev | 360 bar | 400 bar | 3,200 rpm |
| QX5 | 40–100 cm³/rev | 340 bar | 400 bar | 3,000 rpm |
| QX6 | 80–250 cm³/rev | 330 bar | 400 bar | 2,500 rpm |
| QX8 | 160–450 cm³/rev | 330 bar | 400 bar | 1,800 rpm |