Longitudinal Shift Cylinder

Bore: Φ63 mm

Rod: Φ40 mm

Stroke: 410 mm

Operating pressure: continuous 14 MPa, max 16 MPa

Max push force: 50 kN (at 16 MPa, full-bore side)

Max pull force: 30 kN (at 16 MPa, annular side)

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

Piston velocity: <0.5 m/s

Operating frequency: intermittent, several longitudinal adjustments per work cycle

Internal leakage: ≤0.025 ml/min (at 14 MPa, over seal service life)

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

Suitable for: railway tamping machines, track lifting-and-lining machines, etc.

Precise Longitudinal Positioning

The barrel is high-yield-ratio quenched and tempered alloy steel; the piston rod is precision hard-chrome plated (HV900–1100), providing smooth longitudinal displacement under the weight of the assembly and track reaction forces for accurate alignment.

High Side-Load Resistance & Guidance

Wide-profile bronze or composite guide rings in the bore effectively absorb radial forces under eccentric loads and vibration, preventing rod scoring and ensuring long-term smooth operation.

Multi-Stage Seals & Dust Protection

A metal scraper ring and multiple heavy-duty wipers at the gland block ballast dust, stone chips, and water. The main seal is a hydrolysis-resistant polyurethane/filled-PTFE composite for zero leakage in all-weather service.

Internal Cushioning for Noise Reduction

Progressive cushions at both ends decelerate the cylinder at end positions, eliminating impact noise and protecting the shift mechanism and cylinder.

Compact & Maintenance-Free

Mounting dimensions suit the compact space of the longitudinal slide. Self-lubricating composite bushings in the clevises eliminate daily greasing and provide long service life under high-frequency operation.

Optional Position Monitoring

A built-in displacement sensor can provide real-time longitudinal position feedback, enabling precise closed-loop control via the main control system.

Special bore, rod, and stroke

Built-in displacement sensor

Full stainless steel body and piston rod

Explosion-proof / mining certifications

Special mounting distances and port configurations