Guoyue Hydraulic Equipment Manufacturing (jiangsu) Co., Ltd
                                                                                                           
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4 Years
Since 2022
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140mm Custom Hydraulic Boom Cylinder For Large Excavators 16MPa

Price Negotiable
MOQ: 1 piece
Delivery Time: 12~60 days depends on products type
Brand: Guoyue
Product Description
OEM Non-Standard Boom Cylinder for Large Excavator
Product Specifications
Attribute Value
Product Name Hydraulic Cylinder
Weight 70kg
Power 16MPa
Dimensions (L×W×H) 630×150×150mm
Rod Diameter 56mm
Maximum Stroke 335mm
Outer Tube Diameter 140mm
Inner Tube Diameter 80mm
Material Customized
Usage Machinery
Product Description
This plunger-type hydraulic cylinder is custom-built for large excavators and mobile machinery, featuring premium construction and rigorous quality control.
Key Features
  • Tube Construction: Follows GUOYUE CD250 style with options for 45#, 42CrMo, or 27SiMn steel
  • Precision Machining: Hole ground to H8 with surface roughness Ra under 0.4μm
  • Component Materials: Head, base, ears, and piston made from 45# steel (no cast iron/steel)
  • Slow-Down System: Choice of fixed or floating bumpers for controlled deceleration
  • Welding Quality: Ultrasound testing on all heavy-load welds for stress reduction
  • Premium Seals: Only uses Trelleborg (Sweden), Merkel and GP (Germany) seals
  • Rigorous Testing: Each cylinder tested to GB/T15622-2005 and Q/GAKY014-2023 standards
  • Warranty: 1-year coverage from shipment date with free repair/replacement for manufacturing defects
Technical Advantages
This heavy-duty cylinder combines strength with precision, featuring thick steel construction, hard chrome-plated rod, and leak-proof sealing. The telescopic design provides extended reach while maintaining compact storage dimensions.
Applications
Ideal for engineering machinery, mining operations, shipping, metallurgy, water conservancy, offshore applications, agriculture, and construction sites where smooth, powerful movement is essential.
Additional Specifications
Seal Options Parker, Merkel,  Hallite
Paint Colors Red, Grey, Yellow, Black (customizable)
Material Options St52, CK45, 4140, Duplex2205, Stainless Steel 304/316
Certifications ABS, Lloyds, SGS
Packaging Bubble-wrap with wooden case
Structure Types Piston Type, Plunger Type, Telescopic Type
Power Source Hydraulic & Pneumatic
Hydraulic cylinder assembly view Close-up of cylinder rod and seals Cylinder mounted on excavator arm Cylinder cross-section diagram Quality inspection of hydraulic cylinder Technical specifications diagram
Company Information
Based in Jiangsu, China with 51-100 employees, we serve global markets including North America, Europe, Africa, and Asia. Our company specializes in hydraulic cylinder manufacturing with comprehensive R&D and production capabilities.
Quality Assurance
  • Pre-production samples provided before mass production
  • Final inspection conducted before shipment
Services
We accept FOB delivery terms and T/T payments in USD/EUR. Our team communicates in English and Chinese to ensure smooth transactions.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Guoyue Hydraulic Equipment Manufacturing (jiangsu) Co., Ltd
Location China , Jiangsu , Wuxi , No. 1387, Qianhu Road, Hudai Town
Contact Person 15852701381

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