Caterpillar 345D Caterpillar 349D fan pump accessories

Caterpillar 345D Caterpillar 349D fan pump accessories

2 week ago

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 3 year year

Product details

Caterpillar 345D & 349D Fan Pump Parts Technical Overview

1. Core Component Breakdown

A. Pump Assembly

• Pump Cylinder Block

• Material: High-strength cast iron with nickel-chromium plating for corrosion resistance.

• Function: Houses reciprocating plungers and acts as the primary pressure chamber.

• Plunger & Return Plate Set

• Precision-machined steel componentswith polished surfaces to minimize friction.

• Role: Plungers compress hydraulic fluid, while return plates ensure smooth piston retraction.

• Valve Plate

• High-carbon steel constructionwith laser-etched flow channels.

• Purpose: Directs hydraulic oil to/from the pump chamber via rotating barrel design.

B. Drive Train Components

• Drive Shaft

• Forged alloy steelwith spline-tooth coupling for torque transmission.

• Specs: Diameter 45mm, rated for 12,000 Nm torque at 2200 RPM.

• Bearing Assembly

• Tapered roller bearings(Class 3 precision) support radial/axial loads.

• Lubrication: Requires ISO VG220 gear oil for optimal lifespan.

C. Control Systems

• Solenoid Valve

• 24V DC coilwith IP67-rated enclosure.

• Response Time: <50ms for pressure regulation.

• Pressure Sensors

• Piezoresistive ceramic elementswith ±0.5% accuracy.

• Range: 0-4500 psi operating pressure.

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 Audited supplier

3 year

Address: Ningbo, China

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

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