Hydraulic rotary vane pump YG series

hydraulic motorhydraulically-operatedmetal

Product Overview
A hydraulic sand pump for excavator delivers significantly higher dredging efficiency than electric submersible pumps by using the excavator's main hydraulic power to produce high torque. The system combines a direct hydraulic drive with a high-chrome bottom agitator and rotating side cutters to break compact sand deposits quickly and pump slurry with up to 60% solids density by weight. Hydraulic operation eliminates motor burnout risks associated with electric drives and enables reliable deep-water dredging and heavy abrasive applications.

Key Benefits

• 50% higher dredging efficiency versus electric submersible pumps in many jobsites
• Direct hydraulic drive uses excavator pump power to deliver high torque for clog-prone sand and gravel
• High-chrome wet-end components for abrasion resistance and extended wear life
• Side cutters and agitator break compacted sand and increase suction efficiency
• Safe pumping of high-solids slurry (up to ~60% solids by weight) for heavy-duty dredging

Common Applications

• River dredging and dam desilting: lifts clay, silt and gravel mixtures from deep riverbeds
• Coastal reclamation and harbor dredging: mounted on long-reach excavators or barges for long-distance piping of mud/sand
• Mine tailings and settling pond cleaning: heavy-alloy wet ends resist abrasive tailings
• Large site clearance and underwater slurry transport: integrates with other excavator attachments (screening, cutting) for multi-task sites

Pump models and factory performance table
Pump Model | Flow (m³/h) | Lift Head (m) | Agitator Power | Stirrer Torque | Excavator Tonnage | Matched Field Application
YG200-15 | 200 m³/h | 15 m | 5.5 KW | 1556 N·m | 10T–20T | Shallow water dredging, fine sand, pond desilting
YG150-30 | 150 m³/h | 30 m | 5.5 KW | 1556 N·m | 10T–20T | Deeper water, medium discharge head pumping
YG300-20 | 300 m³/h | 20 m | 5.5 KW | 1556 N·m | 10T–20T | Medium river desilting, high-flow sand extraction
YG500-15 | 500 m³/h | 15 m | 7.5 KW | 1946 N·m | 20T–30T | High-flow dam tailings, harbor mud cleaning
YG250-35 | 250 m³/h | 35 m | 7.5 KW | 1946 N·m | 20T–30T | Medium-large excavators, long-distance piping
YG400-30 | 400 m³/h | 30 m | 15 KW | 2433 N·m | 30T–40T | Heavy slag pumping, river sand mining, thick mud
YG400-40 | 400 m³/h | 40 m | 15 KW | 2433 N·m | 30T–40T | Ultra-high head reclamation, deep water dredging

Operator Tips

• Start side cutters first to loosen sand beds before lowering the pump intake; plunging the pump intake straight into hard sand can jam suction ports.
• Flush the pump with clean water for several minutes after each shift to remove settled grit and prevent impeller lock-up.

Case summary (site example)

• Challenge: Electric pumps on a compacted riverbed struggled with low slurry density and frequent impeller lockups.
• Solution: A hydraulic sand pump fitted to a mid‑sized excavator with a 7.5 KW agitator and side cutters.
• Result: Slurry density increased (example >45%) and daily sand output doubled; hydraulic drive removed previous motor burnout issues and reduced downtime.

Frequently Asked Points

• Why add hydraulic side cutters? Rotating side cutters dig into hard layers when water suction alone cannot break compacted sand or clay, increasing slurry density at intake.
• Can I install on excavators without extra hydraulic lines? Auxiliary circuits or diverter valves can be used to route oil flow to side cutters without adding a dedicated new main pump.
• How long do impellers last and are they easy to replace? Wet-end wear parts use Cr26 high-chrome alloy and typically last 800–1,200 hours in normal sand conditions; split-casing designs allow on-site impeller swaps within a few hours.

Caractéristiques / Spécifications techniques

• Series designation: YG series (multiple models available: YG150-30, YG200-15, YG250-35, YG300-20, YG400-30, YG400-40, YG500-15)
• Flow range: 150–500 m³/h depending on model
• Lift head range: 15–40 m depending on model
• Agitator power: common options 5.5 KW, 7.5 KW, 15 KW
• Stirrer torque: from ~1556 N·m up to ~2433 N·m depending on model
• Recommended excavator tonnage: 10T–40T (model dependent)
• Wet-end materials: high-chrome alloy (Cr26) casting for wear resistance
• Design features: direct hydraulic drive, bottom agitator, rotating side cutters, split casing for inline maintenance