Marzocchi Double Hydraulic Gear Pump
Product Overview
Marzocchi Double Hydraulic Gear Pump is a high‑quality modular tandem‑type Hydraulic gear pump imported from Italy. As a reliable dual‑circuit power source, this premium‑grade hydraulic pump provides two independent oil‑supply flows for the complete hydraulic system. The double‑pump structure can adopt same‑displacement dual‑high‑pressure configuration or high‑low‑pressure combined layout, realizing fast no‑load movement and high‑pressure heavy‑load operation simultaneously. This Hydraulic gear pump features compact assembly, low‑noise performance, high volumetric efficiency and strong anti‑pollution capacity. It is widely used for original equipment matching, equipment renovation and aftermarket spare‑parts replacement of injection molding machines, hydraulic presses, construction machinery, agricultural equipment and other industrial facilities. Stable operation of this hydraulic pump directly ensures reliable performance and long service life of the whole hydraulic system.
Technical Specifications
‑ Brand: Marzocchi (Italy)
‑ Product Type: Tandem double‑section external‑meshing Hydraulic gear pump, main hydraulic pump for dual‑circuit hydraulic system
‑ Housing material: High‑strength aluminum alloy or cast iron housing
‑ Rated continuous pressure: Up to 250‑280 bar; peak pressure up to 310 bar
‑ Rotating speed range: 500‑3600 rpm
‑ Installation: Standard SAE or European‑style flange mounting, single‑input‑shaft dual‑output‑pump design
‑ Working medium: Anti‑wear hydraulic oil for industrial and mobile hydraulic system
‑ Operating temperature: ‑20℃ ~ +85℃
‑ Feature: Modular combined structure, two independent oil outlets, optional high‑low‑pressure unloading function, low flow pulsation, good interchangeability, compact overall dimension, perfectly matches dual‑loop requirements of heavy‑duty equipment.
Working Principle
The prime mover drives the shared input shaft of this Hydraulic gear pump. Two groups of meshing gear assemblies rotate synchronously inside the double pump body. The periodic volume change of sealed chambers in each pump section completes oil suction and high‑pressure oil discharge separately, outputting two independent hydraulic flows. The high‑low‑pressure combined version can unload the large‑flow low‑pressure circuit automatically when system pressure rises, reducing power consumption and heat generation of the hydraulic system. When gears, bearings or sealing components are worn, the hydraulic pump will suffer faults such as insufficient flow, pressure drop, abnormal noise and oil leakage. Replacing a qualified Hydraulic gear pump can fully restore the dual‑circuit working performance of the whole hydraulic system.
Core Advantages
1. Integrated double‑pump modular design, one‑shaft drive saves installation space, simplifies pipeline layout of the hydraulic system.
2. Flexible flow combination scheme, high‑low‑pressure unloading function optional, effectively reduce energy consumption and heat‑rise of the hydraulic system.
3. High‑precision gear pair machining, low‑noise and low‑pulsation output, improve running stability of the matched equipment.
4. Strong contamination resistance, good adaptability to complex working‑condition hydraulic oil, extend service life of the hydraulic pump.
5. Strictly follow original mounting dimensions, excellent interchangeability, direct replacement without secondary machining, convenient for on‑site overhaul and maintenance.
Application Range
Marzocchi Double Hydraulic gear pump is a core dual‑power component for industrial and mobile hydraulic system. It supplies stable dual‑circuit hydraulic power for hydraulic presses, injection‑molding machinery, lifting equipment, construction machinery, agricultural machines and other heavy‑duty industrial equipment. Widely supplied for OEM manufacturers, machinery repair workshops and global aftermarket spare‑parts trading business.
