Hydraulic Cylinder

Main Parts of a Hydraulic Cylinder

1. Cylinder Barrel

• Houses the pressurized fluid and guides the piston.

• Made of seamless high-tensile steel tubing.

2. Piston

• Located inside the barrel.

• Separates the pressure zones and pushes against hydraulic force.

3. Piston Rod (Chrome Rod)

• Extends out of the barrel.

• Transfers the force generated by the piston to external equipment (like a blade or breaker).

• Often chrome-plated to resist corrosion and wear.

4. Rod End / Mounting End

• The attachment point at the rod’s end (clevis, eye, etc.) for connecting to machinery or attachments.

5. Cylinder Head / Gland

• Contains seals and wipers.

• Supports the rod and guides it as it moves in and out.

6. Cylinder Cap / End Cap

• Seals the cylinder at the opposite end of the rod.

• May also act as a mounting point.

7. Seals and Wipers

• Prevent fluid leakage and contamination.

• Common types: O-rings, U-cups, wipers, backup rings.

8. Ports (Inlet/Outlet)

• Entry/exit points for hydraulic fluid.

• Can be side-mounted or rear-mounted.

9. Retaining Rings & Fasteners

• Hold the gland or cap in place.

• Secure internal components.

🧰 Hydraulic Cylinder – In Use with Hydraulic Breaker

Hydraulic cylinders used in a hydraulic breaker system are usually part of:

• Positioning Arms or Mount Brackets

• Tilt and Swivel Mechanisms

• Boom and Stick Movement

While the breaker itself uses hydraulic pistons internally (not externally visible), external hydraulic cylinders help position and control the breaker attachment.

🔧 Common Attachments & Related Components

🛠️ Common Replaceable Spare Parts for Hydraulic Cylinders

• Rod and piston seals

• Wear rings

• Wiper seals

• Cylinder barrel

• Piston rod

• Gland/head

• Mounting pins and bushings

• O-rings and backup rings