GXP Series Hydraulic Gear Pump | GXP05-B1B63ABR-20 | GXP10 GPP1 GPP0

LIC Hydraulic specializes in the GXP and GPP Series, a premium range of micro-sized high-pressure gear pumps. These series, encompassing Group 0 and Group 1 frames (GXP0, GXP10, GPP0, GPP1), are specifically engineered for compact hydraulic power units (HPUs). The flagship model GXP05-B1B63ABR-20 features a high-tensile aluminum body and pressure-balanced construction, delivering continuous pressure up to $250\text{ bar}$ ($3625\text{ PSI}$). Known for their efficiency and reliability in a small footprint, these pumps are the industry standard for tail lifts, medical beds, and precision mobile equipment.

Technical Specifications (Bulleted List)

• Frame Sizes: Group 0 (Micro) and Group 1 (Standard Mini).

• Displacements: $0.25\text{ cc/rev}$ to $2.0\text{ cc/rev}$ (Group 0); up to $8.0\text{ cc/rev}$ (Group 1).

• Max Pressure: Continuous up to $250\text{ bar}$, peak up to $280\text{ bar}$.

• Efficiency: $\ge 90\%$ volumetric efficiency at rated conditions.

• Mounting: Variety of SAE and customized mini-flanges available.

Key Technical Advantages

• Compact Powerhouse: One of the smallest high-pressure pumps available on the market, ideal for integration into manifold-based micro power packs.

• Axial Compensation: Internal floating bushings automatically adjust for wear and pressure, maintaining high efficiency over a long service life.

• Ultra-Low Noise: Precision-ground gears and optimized fluid paths minimize flow ripple and operational sound levels.

• Cold Start Reliability: Engineered to perform consistently across a wide temperature range, essential for outdoor mobile applications.

Application Areas

• Logistics: Hydraulic systems for truck tail lifts and lift gates.

• Medical Equipment: Powering surgical tables, dental chairs, and patient hoists.

• Compact Industrial: Clamping systems for CNC machines and mini lift tables.

Expert Maintenance Tips

• Inlet Filtration: Due to the tight tolerances of micro-gear pumps, a high-quality filter ($10\text{ microns}$ absolute) is mandatory to prevent internal scoring and pressure drop.

• Case Priming: Before the first start, ensure the pump is filled with hydraulic fluid to avoid dry friction damage on the aluminum side plates.

• Avoid Shock Loads: Use an appropriately sized relief valve in the circuit to prevent pressure spikes from exceeding the mechanical limits of the micro-pump body.