Gear oil pump GXPO Series GXPO-AOC30ABL-21

⚙️ Product Description

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The Gear oil pump GXPO Series GXPO‑AOC30ABL‑21 gear pump from Hengmeisi, a leading Chinese factory supplier, features reinforced gears, low friction, and stable flow. It eliminates pressure drops under full load, ensuring reliable performance in high‑load hydraulic systems.

✨ Product Advantages

🔹 High-Flow Gear Pump vs. Conventional Pump Designs

Unlike standard gear pumps, the GXPO-AOC30ABL-21 uses optimized large-displacement gear pairs with polished flow channels. It minimizes pressure ripple and gear meshing losses, enabling higher flow stability and efficiency under continuous high-load conditions.

🔹 Reinforced Heavy-Load Structure

Thickened gear sets and strengthened bearings withstand long-term high pressure and shock loads. The reinforced housing prevents deformation, ensuring precise internal clearances and stable performance even in harsh working environments.

🔹 Premium Materials for Extreme Durability

☀ Housing: High-strength die-cast aluminum alloy, lightweight yet rigid

☀ Gears: Heat-treated alloy steel, precision-ground for wear resistance

☀ Seals: Imported composite materials, rated -30°C to +120°C, leak-free at 250 bar

☀ Bearings: Heavy-duty tapered roller bearings, handling high radial loads at 3000 r/min

🔹 Built-In Contamination ResistanceAn optimized internal oil passage design with anti-pollution features protects gears and bearings from hydraulic oil impurities. This reduces wear and prevents jamming, ensuring long-term reliability in industrial and construction applications.

🔢 Model Code Explanation

The model code GXPO-AOC30ABL-21 has a clear, intuitive coding logic for quick parameter identification:

▲ GXPO: Reinforced high-performance gear pump series (distinguished from standard gear pumps)

▲ AOC: Optimized large-flow port layout and mounting specification

▲ 30: Rated displacement of 30 cm³/rev, ideal for high-flow hydraulic systems

▲ ABL: Left-hand rotation, flat key shaft configuration

▲ 21: Reinforced pressure rating and bearing configuration for heavy-duty use

As a core model of the GXPO series, the GXPO-AOC30ABL-21 is optimized for high-pressure, high-flow scenarios. It is widely favored by global purchasers in construction machinery, industrial hydraulics, and heavy equipment supporting fields.

🏗️ Product Structure

1. 🧩 Core Architecture: Reinforced External Gear Pump Structure

Fundamentally different from light-duty gear pumps, the GXPO-AOC30ABL-21 features a heavy-duty design with high-precision gear pairs, reinforced bearings, and a thickened aluminum housing.

⚙️ Working Mechanism: Optimized Gear Meshing + Low-Resistance Flow

The pump uses precision-machined gears to create suction at the inlet and deliver high-pressure fluid at the outlet. Polished flow channels reduce friction loss, enabling efficient power conversion with minimal heat generation.

🛡️ Material Upgrades

※ Gears: High-hardness alloy steel, precision-ground for low wear

※ Housing: Corrosion-resistant, high-rigidity aluminum alloy

※ Seals: High-temperature resistant materials for leak-free operation

※ Bearings: Heavy-duty components for long service life under high loads

🛡️ Integrated Operational Protection

Built-in anti-impact oil passages absorb pressure surges during startup and load changes. This protects internal components from damage, extending the pump’s service life and reducing maintenance costs.

🚜 Application Scenarios

🏗️ Construction machinery: Heavy loaders, excavators, road rollers, and lifting equipment

🚜 Agricultural machinery: Large tractors, harvesters, and farm engineering hydraulics

🏭 Industrial systems: High-pressure hydraulic power units, large machine tools

🚛 Mobile equipment: Special vehicles, aerial work platforms, and logistics machinery

⚙️ General hydraulics: Any heavy-duty application requiring stable large-flow output