Installation Guide for Single Girder Electric Hoist Cranes

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29
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2025
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1. Crane Rail Installation

Rectangular Baseplate Installation on Concrete Runway Beams

(1) Ensure baseplates remain flat and maintain tight contact with rail bottom surfaces. Contact area should exceed 60%, with local gaps not surpassing 1mm.

(2) For gaps exceeding 25mm between baseplate and concrete beam, fill with concrete or cement mortar. For smaller gaps (<25mm), use open-type steel shims (maximum 3 layers). Shims should match baseplate width, extending approximately 10mm beyond one edge for welding.

(3) When securing rails and rectangular baseplates:

  • Install spring washers under nuts
  • Alternatively use double nuts
  • Tighten all bolts properly

2. Electric Hoist Installation

Wire Rope Hoists:

  • Sheave grooves must maintain vertical alignment
  • Prevent rope twisting, jamming, or excessive wear during operation

Electromagnetic Disc Brakes:

  • Brake discs should move freely on splined shafts
  • Avoid jamming or excessive tightness
  • Maintain consistent clearance between electromagnet and disc

Wheel Clearance Specifications:
Match wheel flange-to-I-beam rail clearance with technical documentation. General guidelines:

Capacity (T)Single-side Clearance (mm)
0.25-0.51.5-3
1-22-4
3-52.5-5

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