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HPV145气缸体产品详情图 ps压缩版
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HPV145气缸体产品详情图 ps压缩版
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Heavy-Duty Hydraulic Pump Cylinder Block (Part No. 708-2H-04620) for Komatsu PC400 & PC450 Series (HPV145 Pump)

Restore full hydraulic pressure containment and peak volumetric output in your heavy excavation machinery with this brand-new 708-2H-04620 hydraulic main pump cylinder block. Serving as the primary rotational pressure vessel inside the HPV145 main hydraulic pump, this precision-engineered cylinder block guides 9 high-pressure reciprocating pistons through continuous intake and discharge strokes. Utilizing forged alloy steel with centrifugally cast bimetal wear bushings and CNC micro-lapped end faces, it eliminates internal fluid cross-leakage, prevents thermal seizure, and withstands harsh mass-excavation and hydraulic hammer breaking cycles across demanding 400-6, 400-7, 400-8, 450-7, and 450-8 operations.
  • Direct Drop-in Fitment: Manufactured strictly to OEM blueprints for exact spline alignment, proper spring seating, and balanced rotating mass during main pump rebuilds.
  • Sub-Micron Diamond-Lapped Sealing Face: The rotating discharge end face is diamond-lapped to absolute flatness and parallelism, establishing a zero-leakage hydraulic boundary against the oil distributing plate.
  • Diamond Plateau-Honed 9-Piston Bores: Each of the 9 cylinder bores is precision-honed to sub-micron cylindricity and roundness, ensuring uniform oil retention, optimal hydrodynamic lubrication, and zero piston galling.
  • Forged Alloy Steel Body with Bimetallic Copper Bushings: High-strength structural forged steel core fused with centrifugally cast high-lead bronze/copper bushings, delivering exceptional anti-seizure properties and fatigue resistance under 35+ MPa continuous pressure spikes.
公司介绍
Precision CNC Machining Center
Multi-axis CNC milling centers and dedicated diamond plateau honing lines achieve sub-micron bore roundness, straightness, and mirror-flat end surfaces, guaranteeing optimal oil-film retention and zero fluid bypass.
产品介绍
Rigorous Quality Control & Assembly Testing
Every cylinder block is 100% evaluated using non-destructive ultrasonic and magnetic particle flaw detection, alongside 3D coordinate measuring machines (CMM) and optical flatness interferometers prior to release.
物流图片
Heavy-Duty Rustproof & Wooden Crate Packaging
All precision cylinder barrels are coated with industrial anti-corrosion oil, vacuum-sealed in VCI moisture-barrier packaging, cushioned within custom high-density foam, and packed into export-grade wooden cases for safe international freight.
Brand
YIKAN
Origin
Guangdong, China
Product Name
Fan motor
Model
HPV145 Cylinder Block
Part number
708-2H-04620
Application field
Bulldozer
Warranty/Spare Parts
Six months
Quality
High guarantee
Status
100% new
Minimum order quantity
1 piece
PRODUCTS

PRODUCTS

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High-Torque Hydraulic Main Pump Shaft (Part No. 708-2G-12111) for Komatsu PC300-7 & PC360-7 (HPV140 Pump)

Premium heavy-duty hydraulic main pump front drive shaft (splined input shaft) engineered for HPV140 and HPV132 series variable displacement axial piston pumps. Direct replacement for part number 708-2G-12111 (interchangeable with 708-2G-12110), built as the primary power input interface to transfer continuous heavy engine torque directly to the rotating cylinder block in 30–36 ton class excavators.
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Heavy-Duty Hydraulic Main Pump Swash Plate / Cradle (Part No. 708-2H-04690 / 708-2H-04680) for Komatsu PC400 & PC450 Series (HPV145 Pump)

Premium heavy-duty hydraulic main pump swash plate (swash plate cradle / cam plate assembly) engineered for HPV145 series swash plate axial piston pumps (front and rear pump compatible). Direct replacement for part number 708-2H-04690, built to sustain continuous multi-ton axial thrust loads from all 9 piston shoes while delivering seamless angular deflection for variable displacement control in 40–45 ton class heavy excavators.
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High-Precision Hydraulic Main Pump Valve Plate (Part No. 708-2H-04750 / 708-2H-04760) for Komatsu PC400 & PC450 Series (HPV145 Pump)

Premium heavy-duty hydraulic main pump servo slider block (variable displacement slide block) engineered for HPV145 series axial piston pumps. Direct replacement for part number 708-2H-34150 (7082H34150), built to transmit heavy cyclic servo piston forces to the swash plate tilt pin for precise, rapid displacement regulation in 40–45 ton class heavy excavators.
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HPV145滑块 封面图 ps压缩版

High-Precision Hydraulic Pump Servo Slider Block (Part No. 708-2H-34150) for Komatsu PC400 & PC450 Series (HPV145 Pump)

Premium heavy-duty hydraulic main pump servo slider block (variable displacement slide block) engineered for HPV145 series axial piston pumps. Direct replacement for part number 708-2H-34150 (7082H34150), built to transmit heavy cyclic servo piston forces to the swash plate tilt pin for precise, rapid displacement regulation in 40–45 ton class heavy excavators.
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News

News

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11/ September

How to Test an Excavator Main Control Valve Before Installation

How to Test an Excavator Main Control Valve Before Installation
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ps压缩版

10/ September

How to determine whether to choose original factory parts or aftermaket parts

The decision of whether to use original parts or aftermarket parts is not solely based on price
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Main Control Valve Failure Symptoms in Excavators

7/ September

Main Control Valve Failure Symptoms in Excavators

Read excavator valve symptoms, pressure checks, spool wear signs, and pilot signals to decide whether repair, remanufacture, or replacement will cut downtime fast.
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New vs Remanufactured Excavator Hydraulic Pumps Which Reduces Downtime

1/ September

New vs Remanufactured Excavator Hydraulic Pumps: Which Reduces Downtime

Compare new vs remanufactured excavator pumps by downtime, fitment, test data, warranty, and restart risk so buyers choose the lower-risk option fast.
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What We Do

Services we Offer

No matter what your hydraulic maintenance needs may be, we’re here to help. Contact us today to learn more about our
services and how we can assist you with all of your needs.
Processing

Processing

With years of experience in the processing industry, we offer full-chain customized processing services with our mature production system and stringent quality control standards! Whether you are conducting small-batch trial production of new products, large-scale OEM manufacturing, or customized processing of personalized products, you can enjoy a one-stop service from demand matching to finished product delivery, helping your products to be launched efficiently and quickly to the market. We boast an experienced production team and a modern processing workshop, proficient in various OEM processes including machining, stamping, injection molding, and assembly. We can adapt to the needs of various materials such as metal, plastic, and rubber, perfectly matching diverse industry scenarios including electronics, automotive parts, household goods, hardware tools, and medical devices. From product drawing analysis and processing technology planning to process execution, precision control, and finished product inspection, every step strictly adheres to industry standards, ensuring that the processed products meet precision standards, have stable quality, and strong consistency, effectively reducing your production and operating costs.
Casting

Casting

With years of experience in the casting industry, we provide core casting solutions for your product manufacturing with our exquisite craftsmanship and rigorous quality control! Whether you are developing new products through casting, mass production with casting support, or developing customized castings, you can enjoy exclusive casting services throughout the entire process, helping your products seamlessly transition from design to mass production delivery. We boast a team of experienced casting engineers and a modern casting workshop, proficient in various casting processes such as sand casting, die casting, and precision casting. Our capabilities adapt to diverse material requirements, including cast iron, cast aluminum, cast copper, and stainless steel, perfectly matching the needs of multiple industries such as machinery manufacturing, automotive parts, construction machinery, hardware tools, and medical devices. From product drawing analysis and casting process optimization to mold making, casting, subsequent processing, and quality inspection, every step strictly adheres to international casting standards, ensuring high precision, sufficient strength, and stable performance of castings, effectively enhancing the core competitiveness of our products. We offer dedicated one-on-one service throughout the entire process, responding promptly to your needs and accelerating project progress, so you don’t need to worry about technical barriers or production delays. Professional mold making services – choosing us means choosing an efficient, reliable, and worry-free partner to help your products quickly capture the market.
Abrasive tools

Abrasive tools

With years of experience specializing in abrasive molds, we leverage our expertise to ensure the smooth mass production of your products! Whether you’re developing new products, adapting them for mass production, or upgrading existing molds, you can enjoy a full-process customized abrasive mold development service. We have a team of experienced engineers who strictly adhere to industry standards at every stage, from product drawing analysis and mold structure optimization to mold processing and trial molding. We utilize advanced production equipment and high-quality raw materials to ensure high precision, long lifespan, and stable molding, effectively reducing your production losses. We offer dedicated one-on-one service throughout the entire process, responding promptly to your needs and accelerating project progress, so you don’t need to worry about technical barriers or production delays. For professional mold making, choosing us means choosing an efficient, reliable, and worry-free partner to help your products quickly capture the market!
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Hydraulic Equipment

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We have our own R&D and production team that supports small batch customization and sample processing related to hydraulic maintenance.

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