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CAT E345D hydraulic middle arm cylinder assembly, heavy-duty stick cylinder designed for CAT E345D excavators. Pressure-resistant and leakage-free, it serves as a perfect OEM direct replacement for mining and heavy construction projects.
Our CAT E345D hydraulic middle arm cylinder assembly is a complete CAT E345D stick cylinder and premium CAT excavator hydraulic cylinder. As a reliable excavator arm cylinder assembly, durable E345D boom cylinder, rugged heavy-duty hydraulic cylinder and standard CAT E345D cylinder assembly, this unit is purpose-engineered exclusively for CAT E345D large excavators. It is constructed with high-strength forged alloy steel for both cylinder barrel and piston rod, and fitted with imported multi-layer combined seals. The assembly delivers outstanding pressure resistance, reliable leakage-free performance and superior impact resistance, maintaining steady hydraulic power during frequent heavy-duty arm extension and retraction cycles. Manufactured fully to CAT OEM specifications, all overall dimensions, pin holes and hydraulic ports match original equipment precisely, enabling straightforward bolt-on installation with no modifications required. It effectively resolves common operational faults including oil leakage, sluggish arm movement and insufficient thrust. This component stabilizes overall hydraulic system performance, minimizes unplanned downtime and reduces long-term maintenance costs for CAT E345D excavators working in mining, quarrying, heavy construction and large-scale earthmoving projects.
Product Specifications
Item
Content
Product Name
Middle Arm / Stick Cylinder Assembly
Compatible Model
CAT E345D Large Excavator
Main Material
High-Strength Forged Alloy Steel, Hard-Chromed Rod
Core Components
Cylinder Barrel, Piston Rod, Seal Kit, Guide Ring, Bushing
Rated Working Pressure
35MPa
Key Performance
Pressure-resistant, Leak-proof, Impact-resistant, Stable under heavy load
Application
Mining, Quarrying, Heavy Construction, Large Earthmoving
Condition
Brand New Complete Assembly
Key Features & Benefits
Complete Pre-Assembled Unit This integrated CAT E345D hydraulic middle arm cylinder assembly comes as a finished CAT E345D cylinder assembly, eliminating extra disassembly work and supporting fast one-piece replacement.
100% OEM Direct Fit This dedicated CAT E345D stick cylinder is built in accordance with original factory drawings. All mounting points and hydraulic ports align perfectly with OEM components for trouble-free installation.
Heavy-Duty Reinforced Structure As a robust heavy-duty hydraulic cylinder, it adopts thickened alloy steel barrel and hard-chromed forged piston rod to withstand continuous high pressure and heavy impact loads.
Premium Leak-Proof Sealing System High-performance multi-layer seals fully protect this CAT excavator hydraulic cylinder against oil leakage, dust and mud ingress in harsh mining and construction environments.
Stable & Powerful Hydraulic Output This high-performance E345D boom cylinder ensures smooth arm operation and consistent driving force, preventing slow response and power drop under heavy loads.
Long Lifespan for Heavy-Duty Use This versatile excavator arm cylinder assembly is optimized for heavy-load applications and delivers extended service life in mining, quarrying and large earthmoving operations.
FAQ
Q1: Which excavator model does this cylinder assembly fit?
A1: This professional CAT E345D hydraulic middle arm cylinder assembly is a model-specific CAT E345D stick cylinder. As a standard CAT excavator hydraulic cylinder, practical excavator arm cylinder assembly, durable E345D boom cylinder, rugged heavy-duty hydraulic cylinder and complete CAT E345D cylinder assembly, it offers full compatibility with CAT E345D large excavators.
Q2: What are the core advantages of this hydraulic cylinder assembly?
A2: This heavy-duty hydraulic cylinder features reinforced alloy steel construction and a premium multi-layer sealing system. The CAT E345D hydraulic middle arm cylinder assembly and CAT E345D stick cylinder deliver excellent pressure resistance and zero oil leakage. It ensures smooth arm movement and consistent power output, making it a cost-effective CAT excavator hydraulic cylinder for long-term heavy-duty operations.
Q3: Can this product replace the original factory cylinder directly?
A3: Yes. Manufactured in strict compliance with OEM standards, this E345D boom cylinder and CAT E345D cylinder assembly share identical dimensions, pin specifications and hydraulic ports with original factory parts. This excavator arm cylinder assembly supports direct bolt-on installation with no cutting, drilling or modifications needed.
Q4: What working scenarios is this cylinder suitable for?
A4: This reliable CAT excavator hydraulic cylinder and CAT E345D hydraulic middle arm cylinder assembly are engineered for heavy-load operations. It performs reliably in mining, quarrying, heavy construction and large-scale earthmoving projects.
Q5: How to maintain the cylinder to extend its service life?
A5: Keep the cylinder barrel and piston rod free of mud and debris. Conduct regular inspections for seal damage and oil leakage. Always use qualified hydraulic oil and avoid long-term arm overload to prevent piston rod bending and component failure.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2008
Total Annual:
20000000-25000000
Employee Number:
90~100
Ecer Certification：
Verified Supplier
Guangzhou Liantuo Machinery Trading Company is a professional cross-border supplier specializing in full-series excavator and construction machinery spare parts. We cover a complete product range, including hydraulic parts, undercarriage components, engine core parts, electrical control parts, sle...
Guangzhou Liantuo Machinery Trading Company is a professional cross-border supplier specializing in full-series excavator and construction machinery spare parts. We cover a complete product range, including hydraulic parts, undercarriage components, engine core parts, electrical control parts, sle...
