Gear oil pump QX Series QX21-016R29

Product Description

The quality Gear Pump QX21-016R29 is engineered by Hengmeisi – a leading China manufacturer and factory direct supplier, customized mini single pump with dedicated R29 flange specification. Rated at 235bar continuous, 310bar peak pressure, this QX21-016R29 gains steady volumetric efficiency over 93.2%, low flow pulsation ≤2.1%, specially designed to match narrow-space equipment with R29 standard installation requirement.

Product Advantages

1. Exclusive R29 Standard Flange vs Common Universal Mount Gear Pump

Unlike regular European standard mounting pumps, Gear Pump QX21-016R29 adopts fixed R29 customized flange size to match overseas old equipment replacement, no extra transition flange needed, shorten installation cycle and avoid assembly leakage from mismatched mounting hole.

2. Mini Single-Body Compact Layout for Limited Cabin Space

Integral cast small pump shell with optimized internal cavity layout, small overall outline, perfectly install into compact hydraulic station and mini machinery limited space where large-size pumps cannot be placed.

3. Optimized Wear-resistant Graded Component Configuration

Gear & shaft: carburized alloy steel after precision grinding for stable high-pressure operation;Side plate: copper composite wear-resistant sheet to reduce inner leakage;Seals: imported nitrile composite seal, -21℃~+111℃ anti-aging, zero leakage at 310bar peak;Bearings: lightweight high precision bearing, stable running below 3000r/min, service life over 14800 working hours.

4. Low Vibration Optimized Tooth Profile for Quiet Running

Improved involute tooth form cuts gear meshing impact, running noise below 69dB, suitable for indoor workshop and environmental-sensitive small automation equipment.

Model Code

The model code QX21-016R29 has clear coding rule for global purchasers to confirm configuration quickly:

QX21: Mini high-pressure single gear pump series for small displacement application;

016: Fixed displacement 16ml/r for medium-small flow hydraulic demand;

R: Clockwise right rotation; L counter rotation available per request;

29: R29 special customized SAE mounting flange specification.

As classic single pump of QX21 series, QX21-016R29 is popular replacement spare part for imported original pumps with R29 installation size.

Product Structure

1.Core Architecture: Mini External Meshing Single Pump Structure

Gear Pump QX21-016R29 uses compact single pump integral housing, single group gear set inside shell, different from tandem double or triple combined pump structure.

2.R29 Integrated Flange One-piece Cast Design

Pump rear cover and R29 mounting flange cast integrally, high concentricity between shaft and mounting hole, effectively reduce vibration during equipment running.

3.Floating Side Plate Automatic Clearance Compensation

Built-in floating compensation side plate automatically adjust internal gap under pressure, restrain inner leakage and keep stable volumetric efficiency under long time loading.

4.Streamlined Inner Oil Passage Layout

Optimized inner oil inlet & outlet channel reduces oil flow resistance, lower oil temperature rise under continuous high-load operation.

Application Scenarios

Main Matching Fields for QX21-016R29 Mini Gear Pump

1.Small hydraulic machinery: Desktop small hydraulic press, miniature riveting equipment

2.Plastic auxiliary equipment: Tiny vertical injection mold clamping hydraulic unit

3.Automation: Small fixture hydraulic system, precision cutting forming machine

4.Light agriculture: Mini pruning vehicle, small garden hydraulic equipment

5.Test equipment: Laboratory compact hydraulic test bench power source