Product Name	Excavator Arm Hydraulic Cylinder for Construction Machines
Model	Vio45-6B
Application	For YANMAR Vio45-6B Excavator
Temperature Range	-20-80°C
Pressure Range	21 MPa to 35 MPa
Dimensions	Customized
OEM	Yes

Service Stage	Details
PreSales Service	Free consultation and technical advice
PreSales Service	Customization options for dimensions and performance based on customer requirements
InSales Service	Fast production and delivery times
InSales Service	Real-time updates on manufacturing and shipment status
AfterSales Service	Warranty on manufacturing defects
AfterSales Service	Technical support for installation and maintenance

ps.If you are looking for other hydraulic cylinders for YANMAR, please contact us for a quote

Cylinder Parts Process

Process	Description
Piston Rod	Piston rod conditioning with high-frequency surface hardening, achieving hardness up to 55. Surface treated with hard chromium plating.
Rod End, Tube End, Cylinder Cover	Made of forged steel, with automatic welding for smoother welds instead of manual welding.
Cylinder Tube	Made from 25Mn steel, sandblasted surface, followed by a two-layer paint process with primer and topcoat.
Seals	Imported Japan NOK and US SKF seals, ensuring oil leakage rate below 1%.
Assembly	Fully automated assembly line to reduce manual intervention and improve production stability, preventing nut drop.
Final Inspection	Post-production pressure testing of each cylinder to ensure no oil leakage.

More Models We Provided

Company Information

Guangzhou GuoLi Engineering Machinery Co., Ltd. – Over 16 years of experience in excavator hydraulic cylinders.
Specializes in crawler excavator arm cylinders, boom cylinders, bucket cylinders, cylinder tubes, cylinder rods, custom hydraulic cylinders, seal kits, hydraulic pumps, and electrical parts.
Products designed for various excavator models.
Exported to over 100 countries and regions globally.

Factory Tour

Main product: Excavator cylinders, produced through a complete hydraulic cylinder production line.
Over 10 years of experience, now offering multi-stage hydraulic cylinders.
Focus on customized cylinders for both domestic and imported excavators.
Utilize advanced CNC lathes, grinders, and assembly equipment.
Adhere strictly to ISO quality standards throughout production.

Piston Rod Production Process

Feature	Description
Material	Tempered steel
Surface Treatment	Induction hardened before chrome plating to prevent bending and scratching
Rust Resistance	Resists rust for over 100 hours in salt spray tests
Production Process	Produced and electroplated in-house
Finish	Mirror finish technology

Automatic Welding Process

Feature	Description
Welding Method	Fully automated welding for consistency and integrity
Craftsmanship	Lean welding craft ensures strong joint strength and eliminates defects
Weld Seam Quality	Weld seam matches the appearance of original parts
Durability	Welded parts are not easy to fall off

Finished Product Warehouse Display

Exhibition Showcase

Our Presence at Major Exhibitions: 2023 Malaysia & 2024 Shanghai Bauma

Exhibition With Cooperated Clients

Certificates

Certification

FAQ

1.How can I be sure the part will fit my excavator ?

Give us correct model number /machine serial number /any numbers on the parts itself.
Or measure the parts give us dimension or drawing.

2.What material do you use on hydraulic cylinder?

High frequency quenching No.40 manganese steel as rod material so the cylinder rod has better bending resistance.
No.25 manganese steel as tube material ,so the tube has better wear resistance,

High-strength hardened steel as rod head and tube head ,so the cylinder head and rod head more durable.
Name-brand seal kits to reduce the hydraulic cylinder oil leakage rate.

3.How long can an order delivery?

For some often used models of excavator hydraulic cylinder , we have in stock, within 7 days .
For any order less than one container takes about 2 weeks to finish; Order of 1-2 container takes 4 -6weeks.
At busy manufacturing season, manufacturing time needs more which can confirm by discussion.

4.How to pay?

Order less than 3000USD, full payment at order, Order over USD3000 value ,50% deposited in to start,

50% balance paid to deliver,inspection service accepted.
For customized order, 70%payment as deposit ,30% balance paid to deliver.

5.How to delivery?

If you have shipping agent ,we will cooperate with your agent to arrange shipment .
If not , we have good relationships with shipping companies, express suppliers.
For light goods ,by UPS/DHL/TNT(DAP terms) , For heavy goods ,by sea (FOB,CIF,CFR)

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