The crane rail pad is installed between the crane rail and the crane rail base. The use of crane rail pads allows the rail to move and rotate in a small amount.
The installation of crane rail pads can reduce wear and corrosion, and absorb uneven surfaces, ultimately reducing stress and fatigue.
Types of crane rail pad:
There are three types of crane rail pads: 1. Steel Reinforced Crane Rail Pad 2. Moderate Duty Crane Rail Pad 3. Intermittent Crane Rail Pads
1. Steel Reinforced Crane Rail Pad:
Steel reinforced crane rail pad is used for heavy crane runways.
Steel reinforced crane rail pad contains steel belts, which are not affected by oil, grease, ozone and ultraviolet rays. It can be applied to all rail sizes.
Specifications of Steel Reinforced Crane Rail Pad:
Backing board thickness: 7mm
Shore hardness: 75 normal value plus or minus 5
Temperature range: 25 C-100 C
Ultimate tensile strength: 10.5N/m
Resilience: 30%
Elongation: 250%
Permanent set: 5%
1. Steel Reinforced Crane Rail Pad Function:
Reduce noise and structural vibration.
Reduce rail wear and fatigue stress.
Reduce crane runway maintenance.
Reduce the stress on the runway structure and cranes.
Absorb uneven contact between the guide rail and the support structure.
Protect the lifting gear and extend the service life of wheels, bearings and shafts.
Eliminates the track wear grooves on the runway caused by fretting corrosion.
Distribute the wheel load over a larger surface area, thereby reducing high local bearing stress.
With a high recovery rate, it can inhibit the wear of each wheel and resist permanent deformation.
2. Moderate Duty Crane Rail Pad:
Moderate duty crane rail pad is used for medium-sized crane runways.
Steel reinforced crane rail pad contains steel belts, which are not affected by oil, grease, ozone and ultraviolet rays. It can be applied to all rail sizes.
Backing board thickness: 7mm
Shore hardness: 75 normal value plus or minus 5
Temperature range: -20°C to +100°C
Ultimate tensile strength: 11N/mm sq.
Resilience: 27%
Elongation: 280%
Permanent set: 10%
3. Intermittent Crane Rail Pads
Intermittent crane rail pads are used for runways that discontinuously support rails.
Specifications of Intermittent Crane Rail Pads:
PART NO. |
LENGTH (L) |
WIDTH (W) |
FLAT SEATING (F) |
IP110/ |
110mm (4 5/16") |
170mm (6 11/16") |
74mm (2 15/16") |
IP116/ |
165mm (6 1/2") |
170mm (6 11/16") |
129mm (5 1/16") |
IP220/ |
220mm (8 5/8") |
215mm (8 7/16") |
184mm (7 1/4") |
IP250/ |
250mm (9 7/8") |
215mm (8 7/16") |
214mm (8 7/16") |
IP320/ |
320mm (12 9/16") |
215mm (8 7/16") |
284mm (11 3/16") |
Intermittent Crane Rail Pads Function:
Provide uniform stress distribution in the support structure
Reduce vibration and shock
The tapered edge of the pad reduces the edge load on the tie plate and grout
Lips prevent rail pads from shifting from tie plates
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