YLH3 Internal Gear Pump

YLH3 Internal Gear Pump

2 week ago

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 4 year year

Product details

YLH3 Internal Gear Pump

Product Overview

YLH3 is a fixed‑displacement single‑stage internal‑mesh Hydraulic gear pump, a compact high‑efficiency hydraulic pump widely used for stable oil supply in industrial hydraulic system and various hydraulic‑driven Machine .

This reliable Hydraulic gear pump adopts axial‑radial pressure compensation structure. It delivers low‑noise, low‑pulsation flow output and maintains high volumetric efficiency even under low‑speed operation. It is especially suitable for servo‑frequency‑conversion energy‑saving hydraulic circuits, and acts as an ideal power‑supply component for plastic machinery, light‑to‑medium‑load pressure equipment, packaging machinery and other industrial Machine .

Technical Specifications

‑ Model: YLH3

‑ Product Type: Single‑stage internal‑mesh Hydraulic gear pump, pressure‑compensated hydraulic pump

‑ Displacement range: 8‑63 mL/r, multiple displacement options available

‑ Rated working pressure: 21 MPa; Maximum working pressure: 35 MPa

‑ Rotation speed range: 200‑3000 r/min

‑ Mounting form: Flange‑mounted, standard mounting dimension

‑ Shaft option: Plain key shaft / SAE spline shaft

‑ Rotation direction: Clockwise / Counter‑clockwise optional

‑ Working medium: Anti‑wear hydraulic mineral oil for industrial hydraulic system

‑ Oil temperature range: ‑20℃ ~ +80℃

‑ Key Features: Compact single‑pump structure, low noise, low flow pulsation, high volumetric efficiency, wide speed range, good anti‑pollution performance, stable operation for light‑to‑medium‑load industrial Machine

Working Principle

YLH3 internal‑mesh Hydraulic gear pump consists of internal‑external gear pair, crescent partition plate, pressure‑compensated side plates and cast‑iron pump housing. When the motor drives the main shaft to rotate, inner and outer gears rotate synchronously. The volume of suction chamber expands to generate negative pressure, drawing hydraulic oil into pump cavity. As gears rotate, pressure‑side chamber volume shrinks and pushes hydraulic oil out to supply the whole hydraulic system. The built‑in axial‑radial compensation keeps high volumetric efficiency under varying pressure conditions .

Worn gear pairs, blocked oil passages or shaft‑seal failure will cause flow drop, pressure fluctuation or oil leakage of the Machine. Replacing a qualified YLH3 hydraulic pump can restore stable oil‑supply performance of your hydraulic system.

Core Advantages

1. Compact single‑stage design, simple structure, easy installation and maintenance for different layout of hydraulic system.

2. Internal‑mesh gear structure with pressure compensation, low noise and low flow pulsation, improving running stability of hydraulic‑driven Machine .

3. High volumetric efficiency, stable flow output even at low rotating speed, perfectly fit for servo‑frequency‑conversion energy‑saving applications .

4. Wide displacement selections, easy to match different power demands of various Machine.

5. Strong anti‑pollution capability and long service life, good interchangeability for replacement in existing hydraulic system .

Application Range

YLH3 single‑stage internal‑mesh Hydraulic gear pump is a key power‑supply hydraulic pump for industrial hydraulic system. It is widely applied to injection‑molding auxiliary machinery, small hydraulic presses, packaging equipment, leather machinery, hydraulic test benches and other hydraulic‑driven industrial Machine. It is especially popular for servo‑driven energy‑saving hydraulic circuits. Suitable for hydraulic‑system integrators, equipment manufacturers, maintenance workshops and global spare‑parts distributors .

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 Audited supplier

4 year

Address: Ningbo, China

Main Product: hydraulic motor, gear box , hydraulic pump, hydraulic valve , hydraulic winch, hydraulic system

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