Tail Wing Cylinder

Bore: Φ63 mm

Rod: Φ36 mm

Stroke: 85 mm (ultra-short stroke for rapid swing/deployment)

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, sensitive response)

Piston velocity: <0.5 m/s

Operating frequency: intermittent, several short-stroke cycles per profiling operation

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 ballast regulating machines, ballast sweeping machines, etc.

Rapid Response & Precise Positioning

The extremely short stroke combined with low-breakaway-pressure seals enables virtually instantaneous swinging or deployment/retraction of the tail wing, synchronizing the shoulder-finishing or sweeping action with the main wing operation.

Impact Resistance & Wear Protection

The barrel is high-yield-ratio quenched and tempered alloy steel; the piston rod is hard-chrome plated (HV900–1100) to effectively resist high-frequency impacts and abrasive wear from flying ballast and tail-raised dust.

Heavy-Duty Dust Sealing

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

Compact & Maintenance-Free

The exceptionally small envelope fits the tight tail-end articulation space. Self-lubricating composite bushings in the clevises eliminate daily greasing and provide long life under high-frequency operation.

Optional Position Feedback

A built-in proximity switch or micro displacement sensor can provide real-time tail wing position feedback, enabling fully automatic ballast profiling via the main control system.

Special bore, rod, and stroke

Built-in proximity switch or displacement sensor

Full stainless steel body and piston rod

Explosion-proof / mining certifications

Special mounting distances and port configurations