NBR, polyurethane, PTFE and HNBR hydraulic seal material comparison
GEO

NBR vs PU vs PTFE vs HNBR: How to Choose Hydraulic Seal Materials

Learn the differences between NBR, polyurethane, PTFE and HNBR hydraulic seals, including their typical applications, advantages and selection factors.
Excavator boom, arm or stick, and bucket cylinder locations with corresponding hydraulic seal kits
Arm Cylinder

Boom vs Arm vs Bucket Cylinder Seal Kits: What Is the Difference?

Learn the difference between boom, arm (stick) and bucket cylinder seal kits, why they are not interchangeable, and how to identify the correct excavator kit.
How to Measure a Hydraulic Cylinder Seal Kit: A Step-by-Step Guide
Excavator Seal Kits

How to Measure a Hydraulic Cylinder Seal Kit: A Step-by-Step Guide

Learn how to measure a hydraulic cylinder seal kit accurately, including rod, bore, groove and seal dimensions, when part numbers are unavailable.
Excavator hydraulic cylinder, seal kit components, technical drawing and digital caliper used for seal kit identification
Excavator Seal Kits

How to Identify the Correct Excavator Seal Kit: Model, OEM Number, Cylinder Position and Measurements

Learn how to identify the correct excavator seal kit using the machine model, cylinder position, OEM number, serial range and accurate measurements.
How to install hydraulic cylinder seals
Construction Machinery

How to Install Hydraulic Cylinder Seals: Step-by-Step Guide

Learn how to install hydraulic cylinder seals correctly, including preparation, seal orientation, lubrication, assembly and post-repair testing.
How to Store Seal Kits to Maximize Service Life
Construction Machinery

How to Store Hydraulic Seal Kits to Maximize Service Life

Learn how temperature, humidity, UV light, ozone, packaging, deformation and material type affect the storage life of hydraulic seal kits.
The importance of repair seal kits in construction machinery
Buying Guide

Hydraulic Seal Kit Buying Checklist for Construction Machinery

Use this purchasing checklist to confirm the part number, machine model, cylinder position, dimensions, materials and supplier information before ordering.
How to make seals longer life
Construction Machinery

How to Extend Hydraulic Cylinder Seal Life: Preventive Maintenance Guide

A preventive maintenance guide covering oil cleanliness, rod condition, alignment, temperature, pressure, inspections and repair records.
How to prevent hydraulic cylinder oil leakage
Construction Machinery

Hydraulic Cylinder Leakage Diagnosis: External vs Internal Leaks

Learn how to distinguish external hydraulic leaks from internal bypass, diagnose likely causes and decide what to inspect before replacing a seal kit.