Frame Traverse Cylinder I

Bore: Φ63 mm

Rod: Φ36 mm

Stroke: 700 mm (per track gauge and frame span design)

Operating pressure: continuous 16 MPa, max 18 MPa

Max push force: 56 kN (at 18 MPa, full-bore side)

Max pull force: 37 kN (at 18 MPa, annular side)

Breakaway pressure: ≤0.3 MPa (low-friction seals)

Piston velocity: <0.5 m/s (rapid traverse response)

Operating frequency: intermittent, several lateral adjustments per tamping cycle

Internal leakage: ≤0.025 ml/min (at 16 MPa, over seal service life)

Temperature range: -20 ℃ to +80 ℃ (standard); -40 ℃ to +120 ℃ customizable

Suitable for: railway tamping machines, turnout tamping machines, ballast cleaning machines, etc.

Long-Stroke Precision Traversing

The barrel is made from high-yield-ratio quenched and tempered alloy steel. The piston rod is precision hard-chrome plated (HV900–1100), exhibiting excellent bending stiffness even at 700 mm extension to keep the working frame free of vibration and misalignment.

High Side-Load Resistance Guidance

Wide-profile bronze or composite guide rings embedded in the bore effectively absorb radial forces from the eccentric moment of the suspended frame weight, preventing rod scoring.

Heavy-Duty Dust & Weather Sealing

A metal scraper ring and multiple heavy-duty wipers at the gland completely block ballast dust, stone chips, and rainwater. The main seal combines hydrolysis-resistant polyurethane with filled PTFE, ideally suited to outdoor, dusty, wet environments for zero external leakage over the entire service life.

Cushioning for Noise Reduction & Equipment Protection

Progressive cushions at both ends automatically decelerate and absorb energy at the stroke limits, eliminating rigid impacts, significantly reducing operating noise, and extending the life of the frame limit stops and the cylinder.

Compact Mounting & Maintenance-Free

Mounting dimensions suit the limited underframe space of tamping vehicles. Self-lubricating composite bushings in the clevises eliminate daily greasing and provide exceptionally long service life under high-frequency traverse operation.

Optional Position Monitoring

A built-in displacement sensor can be integrated to provide real-time frame traverse position feedback, enabling precise closed-loop control and safety interlock via the main control system.

Special bore, rod, and stroke

Built-in displacement sensor

Full stainless steel body and piston rod (highly corrosive environments)

Explosion-proof / mining certifications

Special mounting distances and port configurations