After-Sales Service - JW HYDRAULIC

After-Sales Service

Hydraulic Equipment Quality Commitment
Hydraulic Cylinder Instruction Manual
Hydraulic Cylinder Maintenance

JW CYLINDER Hydraulic Cylinder Manual

Precision Engineering for Industrial, Marine & Mining Applications

1. Product Overview

JW CYLINDER LIMITED delivers high-pressure hydraulic cylinders (up to 700 bar) designed for durability and safety. Our custom-engineered solutions meet rigorous international standards (ABS, DNV, Lloyd’s) and cater to industries like marine, mining, and heavy machinery.

2. Key Features & Specifications

Compatibility: HM anti-wear hydraulic oil (ISO VG 46-68 recommended)
Maximum Pressure: 700 bar (10,000+ PSI)
Materials: High-strength alloy barrels, hardened piston rods
Seals: Premium HALLITE® seals (standard) or custom kits

3. Installation & Operation Guidelines

Pre-Installation Checks

Verify hydraulic system pressure matches cylinder ratings.
Use HM anti-wear hydraulic oil (filtered to NAS 1638 Class 8) to prevent seal damage.
Purge air via low-pressure cycling (≥ starting pressure) before full operation.

Critical Installation Steps

Align piston rod with cylinder head/trunnion to ensure straightness (prevents filter plate sludge buildup and rod deflection).
Secure ports with combined gaskets to eliminate leaks.

4. Maintenance & Safety Protocols

Routine Maintenance

Oil Quality: Monitor viscosity and contamination (replace/filter every 6,000 hours).
Seal Replacement: Schedule every 6,000 operational hours or as per HALLITE® guidelines.
Idle Cylinders: Cycle monthly to prevent surface rust.

Troubleshooting

Leakage/Performance Issues: Replace seals, inspect rod alignment, and verify oil cleanliness.
Emergency Repairs: Depressurize system, block ports, and disassemble only when piston rod is fully retracted.

5. JW CYLINDER Quality Commitment

Warranty:
- Standard products: 2-year free maintenance.
- Custom/OEM solutions: 5–10-year negotiable warranty.
Lifetime Support: Free technical consultations and troubleshooting.
Certifications: Compliant with ABS, DNV, Lloyd’s, and ISO 6020/6022 standards.

JW CYLINDER, a leading Asia-based manufacturer of hydraulic cylinders and components, specializes in custom solutions for maritime, offshore, metallurgy, mining, and construction industries. Committed to excellence, their rigorously tested products meet international standards (ABS, Lloyd’s, DNV), ensuring reliability and superior quality in demanding environments. Driven by innovation, JW CYLINDER continues to expand its hydraulic market expertise while delivering performance-driven engineering solutions.