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Closed-end guide rails are hollow elevator guide rails whose cross-section is fully enclosed, meaning all sides of the rail are sealed rather than open. They are typically formed from steel plates through precision welding and shaping, resulting in a closed rectangular or box-type structure.
Because the ends are closed, these guide rails offer better torsional stiffness, improved resistance to deformation, and enhanced corrosion protection compared with open hollow rails. Closed-end guide rails are commonly used in residential and commercial elevators with moderate speeds and loads, especially where weight reduction, cost efficiency, and stable guidance performance are required.
Closed-end guide rails have a fully enclosed cross-section, offering higher rigidity, better stability, and improved corrosion resistance.
Open-end guide rails have a partially open cross-section, making them lighter and more cost-effective, but with lower stiffness.
In practice, closed-end rails are used where better guidance performance is required, while open-end rails suit low-load, low-speed, cost-sensitive elevator applications.
Choose closed-end hollow guide rails when:
• The elevator is for a low- to mid-rise building, such as residential or small commercial properties.
• Weight reduction and easier handling during installation are important.
• The elevator is machine room-less (MRL) or in a shaft with space constraints.
• Moderate performance and lower cost are acceptable trade-offs.
• Expected usage is lighter and less frequent.
• Verify hoistway dimensions, pit depth, and overhead clearances.
• Check rail specifications, lengths, and straightness.
• Ensure brackets, fishplates, fasteners, and shims meet design requirements.
• Install rail brackets on the shaft wall according to layout drawings.
• Control bracket spacing strictly (per EN 81 / GB / ASME A17.1 requirements).
• Ensure brackets are level and firmly anchored.
• Set the first rail section plumb from the pit upward.
• Join rail sections using fishplates and high-strength bolts.
• Ensure joint faces are clean, flush, and properly torqued.
• Adjust rail position using shims to achieve:
• Vertical plumbness
• Correct rail gauge
• Smooth guide surface continuity
• Check alignment with plumb line or laser.
• Tighten all bracket and joint fasteners to specified torque.
• Secure rail ends and confirm no internal deformation at joints.
• Inspect straightness, joint smoothness, and bracket stability.
• Run the car slowly to verify smooth, vibration-free travel.
