// About Hydraulic Cylinders

Tie Rod Type Hydraulic Cylinder

Tie-rod type hydraulic cylinders are typically defined by a set of standardized specifications that cover their key dimensions, performance limits, materials, and mounting options, often adhering to international standards like ISO 6020/2 or ANSI/(NFPA) standards.

// About Hydraulic Cylinders

Key Specifications

Operating Pressure

Common ratings are 1000 PSI, 1500 PSI, 2000 PSI, and 3000 PSI (approx. 70 to 210 bar), with some heavy-duty models up to 350 bar.

Bore Size (Diameter)

Available in a wide range, typically from 25 mm to over 300 mm (or 1 inch to over 24 inches).

Stroke Length

Varies widely by application, from a few inches to several feet, with maximum recommended strokes up to 3000 mm or 4000 mm for standard models.

Cylinder Action

Primarily double-acting (uses hydraulic pressure for both extension and retraction), though single-acting variants also exist.

Mounting Options

Standardized options are available, including flange mounts (front/rear), clevis mounts, foot mounts, and trunnion mounts, in compliance with standards like ISO 6020/2.

Fluid Type

Designed for use with petroleum-based hydraulic fluid as standard, with options for other fluids like fire-resistant water-glycol or phosphoric esters with appropriate seal changes.

Operating Temperature

Standard range is typically around -10°C to 70°C (14°F to 158°F), varying with the seal materials used.

Operating Speed

Typical operating speed for standard cylinders is 8 to 300 mm/sec.

Cushioning

Optional feature for smooth deceleration at the end of the stroke to prevent impact.

// About Hydraulic Cylinders

Standard Materials

Cylinder Barrel

High-strength steel or seamless steel tube; stainless steel for corrosion resistance.

Tie Rods

High-strength alloy steel (often pre-stressed) to withstand significant tensile loads.

Piston Rod

High-strength steel (e.g., 45C8 material or SAE 1045) that is typically hardened, ground, and hard chrome plated for wear and corrosion resistance.

End Caps

Often made from ductile iron or steel.

Seals

Materials like polyurethane, nitrile (HNBR), or Viton are selected based on compatibility with the hydraulic fluid and the operating temperature/pressure.

Tie-rod cylinders are valued for their modular design and ease of maintenance, as the tie rods allow for relatively simple disassembly and reassembly to replace seals or internal components.

(Formerly Known As Eva Industrial Solutions)

Eva Hydraulic Solutions Is A Trusted Leader In The Design And Manufacturing Of Hydraulic Systems And Components. With Over 35 Years Of Experience In The Industry, We Specialize In Producing High-Quality Hydraulic Cylinders, Hydraulic Power Packs, Hydraulic Manifolds, And Hydraulic Jacks.
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