Cold-Weather Slewing Drives: Aerial Platform Operation Below -40°C
Source:Changling Hydraulic  Time:2025-08-16  Visit:20

The -54°C Challenge
Standard hydraulic fluids freeze and steel becomes brittle in extreme cold. Reliable arctic operation requires:

Critical Cold-Adaptations

  • Fluid Systems:

    • Synthetic ester-based hydraulic fluids (pour point -62°C)

    • NLGI 00 lithium-complex grease

  • Material Science:

    • Nickel-steel alloy gears (Charpy V-notch >27J at -60°C)

    • Polyamide cage bearings

  • Start-Up Protocols:

    • 3-stage pre-heating (ambient → gear teeth → core)

    • Torque limiters during warm-up phase

Trans-Alaska Pipeline Case Study
Modified Snorkel S9039 scissor lifts feature:

  • Battery-heated slewing drive sumps

  • Arctic-grade polyurethane seals

  • Achieved 98% operational readiness at -46°C