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PC350 450环圈副图
PC350 450环圈详情图
PC350 450环圈详情图1
PC350 450环圈副图
PC350 450环圈详情图
PC350 450环圈详情图1

708-2H-21860 708-2H-23141 Hydraulic Compression Pad Loop for PC350-7 PC400-7

In the grueling environment of heavy earthmoving and quarrying, the main hydraulic pump of a PC400-7 or PC450-7 operates under staggering internal pressures. The compression pad loop is an unsung hero, acting as a critical buffer that absorbs high-pressure shocks and maintains the precise axial clearances of the internal rotating group. When an inferior or worn pad loop loses its structural thickness or cracks under pressure, it allows the internal components to vibrate violently, leading to rapid seal failure, scored cylinder blocks, and complete hydraulic breakdown. Manufactured directly in our specialized heavy hydraulic production facility, this premium compression pad loop guarantees absolute dimensional stability and shock absorption, protecting your expensive main pump investment.In the grueling environment of heavy earthmoving and quarrying, the main hydraulic pump of a PC400-7 or PC450-7 operates under staggering internal pressures. The compression pad loop is an unsung hero, acting as a critical buffer that absorbs high-pressure shocks and maintains the precise axial clearances of the internal rotating group. When an inferior or worn pad loop loses its structural thickness or cracks under pressure, it allows the internal components to vibrate violently, leading to rapid seal failure, scored cylinder blocks, and complete hydraulic breakdown. Manufactured directly in our specialized heavy hydraulic production facility, this premium compression pad loop guarantees absolute dimensional stability and shock absorption, protecting your expensive main pump investment.
  • High-Tensile Alloy Construction: Forged from specialized, high-density alloy steel designed to withstand the immense compressive forces and high-frequency hydraulic pulsations generated by 45-ton class main pumps.
  • Micro-Level Thickness Tolerance: CNC-machined and surface-lapped to absolute micron-level thickness uniformity, ensuring that the internal rotary group is held with perfect tension, eliminating axial play and backlash.
  • Advanced Anti-Galling Treatment: The surface undergoes deep thermal treatment and polishing to resist friction-induced wear, preventing metal shavings from contaminating your hydraulic fluid under extreme loads.
  • Exact Dimensional Fitment: Manufactured to strict factory geometric standards, guaranteeing a seamless, modification-free installation that immediately restores structural integrity to the pump housing.
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Direct Manufacturing Prowess
Operating a premier manufacturing facility strictly dedicated to mechanical accessories and hydraulic pump systems, we deliver precision-engineered internal components directly to global buyers at aggressive wholesale pricing, completely bypassing trading middlemen.
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Data-Driven Fulfillment Transparency
We empower your supply chain management with robust operational data. We provide highly structured production updates, readily supplying custom weekly operational reports for any specific business period you require, ensuring you maintain total visibility over your international inventory flow.
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Heavy-Duty Export Packaging
High-value precision internal pump components demand flawless protection against rust and deformation. We utilize specialized anti-rust treatments, individual vacuum sealing, and secure your bulk orders in reinforced, fumigation-free wooden crates for safe ocean or air freight transit.
Brand
YIKAN
Origin
Guangdong, China
Product Name
Fan motor
Model
PC350/450 Slewing Ring
Part number
708-2H-21860 708-2H-22160 708-2H-23141
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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HPV140(HP1250K)封面图 ps压缩版、

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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HPV145摇摆座封面图 ps压缩版

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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HPV145气缸体封面图 ps压缩版

Heavy-Duty Hydraulic Pump Cylinder Block (Part No. 708-2H-04620) for Komatsu PC400 & PC450 Series (HPV145 Pump)

Premium heavy-duty hydraulic main pump cylinder block (pump barrel / rotary cylinder assembly) engineered for HPV145 series swash plate axial piston pumps. Direct replacement for part number 708-2H-04620, built with centrifugally cast bimetallic copper alloy bushings to guide 9 reciprocating high-pressure pistons and maintain a hydrodynamic seal against the valve plate in 40–45 ton class heavy excavators.
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HPV145配流盘 ps压缩版

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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News

News

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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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Why Excavator Hydraulic Pumps Overheat After Replacement

24/ August

Why Excavator Hydraulic Pumps Overheat After Replacement

Fix hydraulic pump overheating after replacement with checks for oil heat, pump settings, cooler flow, contamination, fitment, and supplier support steps.
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Gear Pump vs Piston Pump for Bulldozers and Wheel Loaders

17/ August

Gear Pump vs Piston Pump for Bulldozers and Wheel Loaders

Compare gear and piston pump choices for bulldozers and wheel loaders, with pressure, flow, maintenance, replacement timing, and practical supplier checks.
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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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