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RITO PVK-3B-725 Cylinder Block PVK-3B-725-N PVK3B725 For Excavator Spare Parts Construction Machinery Parts Power Repair Unit

Losing arm lifting speed or suffering from sudden engine stalling when your excavator dips into heavy material piles reflects internal pump barrel wear. Wider clearances inside a scaled or scored cylinder block allow massive high-pressure oil slippage, dropping your main pump's volumetric efficiency while driving up daily fuel costs. Replace lagging internal core groups with the precision-ground RITO PVK-3B-725 cylinder block set to restore factory pressure boundaries.

  • Item NO.:

    PVK-3B-725-BD Cylind
  • Order(MOQ):

    1
  • Payment:

    T/T, WESTERN UNION, CHINESE BANK,PAYPAL
  • Product Origin:

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Quarry parts managers and specialized heavy machinery repair depots cannot afford weak internal component tolerances that drop pressure after a major pump overhaul. The robust RITO PVK-3B-725 piston barrel features micro-honed piston chambers ground to tight technical metrics to eliminate internal pressure leaks. Keep this critical service component in your workshop inventory to complete reliable rebuild projects for your commercial clients.

PVK-3B-725-BD Cylinder Block

 
Product Specifications

Part Number  PVK-3B-725
Part Name Forged Piston Pump Barrel Cylinder Block Set Parts Excavator Cylinder Block
Compatible Brand Tongmyung
Applicable Models Small-displacement Main Pumps utilizing PVK-3B Series Pump Internals
Application Excavator hydraulic system
Material High-Hardness Alloy Steel
Product Color Polished Steel Silver and Bright Golden Bronze
Working Temperature -35°C to 125°C
Key Function Housing high-speed piston shoes to compress hydraulic fluid and build system pressure channels
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Bimetallic Block Fusion Technology

Copper-alloy face layer offers exceptional anti-friction properties against the distribution plate to stop wear.

Leak-Free

Micro-Honed Piston Bores

Ultra-smooth internal cylinder walls minimize frictional drag and piston slipper scuffing.

Direct Fitment

High-Fatigue Forged Base Core

Forged alloy steel block structure handles continuous heavy-duty cyclic loading without structural stress cracking.

Rigorous Testing

 Multi-Tier Quality Options

We provide Original, OEM, and Premium Aftermarket grades, allowing distributors to meet diverse client budgets and performance needs.

 

Excavator Hydraulic Part

FAQ


Q: What specific pump failure modes tell a mechanic that the internal PVK-3B-725 cylinder block has suffered severe internal wear?
A: A noticeable drop in oil flow output when the fluid reaches full operating temperature, elevated pump casing vibrations, and a high-pitched mechanical whine under load.
 
Q: What preparation standards must re-assembly crews follow before placing this cylinder block into the pump housing?
A: Technicians must thoroughly coat the internal bores and face plate with clean hydraulic fluid, ensuring that the splined drive shaft aligns perfectly without force.
 
Q: Are part numbers PVK-3B-725 and PVK-3B-725-N completely interchangeable across standard main pump overhauls?
A: Yes, these numbers represent the same technical blueprint sizes, matching the factory mounting metrics specified for this rotating frame displacement class.
 
Q: How does the bimetallic face of this cylinder block prevent surface galling during high-heat mining operations?
A: The premium bronze composition functions as a solid lubricant during temporary thermal spikes, preventing the cylinder block from metal-on-metal welding against the valve plate face.
 

Q:  What quality options are available?

A: We provide original, OEM, and high-quality aftermarket versions with stable supply capability.

 

Q:Why Choose RITO?
A:Listed Factory
   Stable&Reliable Quality
   OEM Factory for Chinese Top Excavator Brands
   Supplier to Fortune 500 Companies

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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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