Gear oil pump QX Series QX31-032R11

Product Description

Hengmeisi Gear oil pump QX Series QX31-032R11 – custom Bucher replacement single pump. QX31 series, 32cc fixed displacement, right-hand rotation, R11 custom sealing/mounting. Rated 305 bar continuous / 365 bar peak. Optimized tooth profile reduces pulsation – ideal as independent oil supply for auxiliary control circuits in small/medium industrial machinery.

Product Advantages

Exclusive R11 Customized Matching Specification

Different from conventional R08/R308 general standard pumps, R11 stands for special-size mounting flange and customized composite sealing suite. Specially formulated sealing material works steadily within -23℃~+86℃, effectively preventing creeping leakage under frequent pressure fluctuation and adapting to equipment with non-standard reserved installation holes.

Compact Single-Body Layout Saves Cabin Space

QX31 series compact body design reduces overall outer dimension obviously compared with medium-large QX41/QX51 pumps. The integrated casting housing structure needs fewer auxiliary fixing parts, convenient for embedded installation inside narrow equipment cavity or compact hydraulic block layout.

Stable Pressure Holding & Low Flow Drift Performance

Precision optimized gear grinding process effectively controls internal clearance variation. The pump keeps stable fixed flow output during long-time static pressure holding, hardly generating pressure drop, ideal for hydraulic loops that require long-term constant pressure locking.

Moderate Anti-Impurity for Auxiliary Circuit Oil

Moderate meshing clearance design improves adaptability to ordinary filtered hydraulic oil, resisting fine suspended impurities in auxiliary oil circuits, lowering unexpected pump locking failure and reducing regular maintenance workload for small hydraulic stations.

Model Code

QX31-032R11 follows official BUCHER coding criteria for quick parameter confirmation:

QX31: Compact small-displacement dedicated pump series, independent from QX21/QX41 product platform;

032: Nominal fixed displacement of 32cm³ per revolution for auxiliary loop steady oil supply;

R: Right-hand clockwise drive shaft rotation, universal rotation direction for most industrial host;

11: Custom configuration code including exclusive flange dimension and special customized sealing assembly.

As special customized single pump of QX31 lineup, QX31-032R11 is customized for non-standard mounting equipment and auxiliary pressure-stabilizing hydraulic circuits.

Product Structure

1.Core Architecture: Compact Single Internal Meshing Gear Structure

Integrated cast iron pump casing houses one set of inner and outer gear assembly, simplified internal flow channel design shortens oil conveying path and reduces internal pressure loss.

2.Constant Fixed Displacement Output Mechanism

Fixed tooth profile structure guarantees stable 32cc/rev constant flow without variable adjustment parts, simplifying peripheral hydraulic circuit design for pressure-locking equipment.

3.R11 Spec Specialized Matching Components

Carburized fine-ground alloy steel gears ensure long-term wear resistance; R11 exclusive customized seal fits pump cavity perfectly; miniature high-precision bearings support max 1650rpm continuous rated rotation.

4.R11 Exclusive Pre-machined Interface

Inlet/outlet ports and mounting flange are fully processed in accordance with R11 non-standard size at factory, matching original BUCHER spare part dimension to realize direct replacement without on-site hole modification.

Application Scenarios

Small stamping auxiliary equipment: independent pressure lock hydraulic power for workpiece clamping;

Compact hydraulic power units: auxiliary pressure supplement pump for small integrated hydraulic station;

Food processing machinery: auxiliary hydraulic drive for positioning and clamping modules;

Automation auxiliary fixtures: compact hydraulic source for secondary positioning of assembly lines;

Custom non-standard machinery: special installation matched hydraulic pump for customized small equipment.