Crane Rail Bolts

Crane rail bolts are key components used to connect crane tracks to supporting structures. They are typically used in conjunction with crane rail clips and nuts to ensure stable track operation. Crane rail bolts are high-strength fasteners designed specifically for use in lifting and hoisting operations. They offer strong load-bearing capacity, safety, and reliability, making them widely used in construction, bridges, ships, and other engineering applications.

Main Types of Crane Rail Bolts

The main track bolts used in crane rail systems include crane rail anchor bolts, crane rail hook bolts, crane rail j bolts, T-bolts, and fish bolts. The appropriate type of bolt can be selected based on the installation method and structural conditions.

Crane rail anchor bolt

Anchor bolts are fixed bolts with a threaded end and a straight, L-shaped, or J-shaped end. They are used to securely connect the track foundation to crane clips and steel sole plate. Anchor bolts offer high load-bearing capacity and strong impact resistance, making them suitable for long-term fixation. They are commonly used in high-intensity environments such as port tracks, metallurgical plants, and shipyards.

Installation method: During track foundation construction, the embedded end of the anchor bolt is pre-fixed in the concrete or grouting layer, leaving the exposed threads for later installation of the crane clips or steel sole plate.

• Anchor bolt

Crane rail anchor bolt specification

Size: M16 to M48, L=100 to 500mm
Material:Q235, C35, C45, 35CrMo, 42CrMo
Standard: DIN529, ISO898-1
Surface treatment: Oxide black, Zinc plated, hot dip galvanized, Dacromet, Sherardized
Application: Available for overhead, gantry, and port cranes rail fastening system.
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Crane rail hook bolt / J-bolt

Crane rail hook bolt is a bolt with one end bent into a J-shape or hook-like shape, allowing it to be fastened to steel structures or track supports. Crane rail J bolts require no drilling and are quick to install, making them ideal for applications where damage to the steel structure is undesirable, such as indoor overhead cranes and steel rail systems in factory buildings.

Installation method: hook the bent end under the flange of a crane rail beam or the edge of a track support and tighten the nut to secure it.

• Hook bolts(J bolt) for crane rail

Hook bolts(J bolt) specification

Size: Dia. M20-M36
Grade: 4.6, 5.6, 8.8
Standard: UIC864 & DIN529
Surface treatment: Plain & Oiled, Oxide Black, Zinc Plated, Hot Dip Galvanized, etc
Raw material: Low Carbon Steel, Medium Carbon Steel, Alloy Steel
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T-Bolt

T-bolt is a type of fastener with a &quot;T&quot; shaped bolt head, designed specifically for embedded or card slot installation structures. The T-bolt position is adjustable and easy to disassemble, suitable for track systems that require flexible adjustment of track gauge, such as port tracks.<br />

Installation method: Insert the T-shaped bolt head into the installation groove at the bottom of the steel rail or steel tie plate, rotate it 90 &deg;, clamp the groove wall, and then tighten the nut to fix the crane rail clamp.

• T-Bolt

T-Bolt specification

Size: Dia.1/2"-1 1/2"
Grade: 4.8, 5.6, 8.8,10.9,12.9
Standard: GB, DIN, ISO, ASTM, BS,etc.
Surface treatment: Plain, Black, Galvanized, Dacromet
Raw material: Low Carbon Steel, Medium Carbon Steel, Alloy Steel
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Fish bolt / rail joint bolt

Fishplate bolt is a specialized bolt used for connecting crane track joints, usually used in conjunction with fishplates. Fishtail bolts are suitable for track joint positions, with high installation accuracy requirements and are convenient for regular maintenance or replacement of tracks.

Installation method: Attach the fishplate tightly to the outer side of the two steel rail ends, pass bolts through the bolt holes of the fishplate and steel rail, and tighten them to firmly connect and align the rail ends.

• Square head fish bolt
• Cup head oval neck fish bolt
• BHON track bolt
• BHDN track bolt
• Day mark fish bolt

Square head fish bolt specification

Size: M20, L as ordered
Grade: 4.6, 5.6
Standard: DIN5903-2 Type B
Surface treatment: Zinc plated, hot dip galvanized
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Cup head oval neck fish bolt specification

Size: M18, M20, M22, M24, L as ordered
Materials: Middle carbon steel
Standard: AS 1085.4, 6&7
Surface treatment: Black
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BHON track bolt specification

Size: Dia. 5/8"－1-1/2", Length1-1/2"－13"
Grade: Gr2, Gr5, Gr8
Standard: AREMA & SAE J429
Surface treatment: Black, Zinc plated
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BHDN track bolt specification

Size: Dia. 15/16"－1-1/2", Length1-1/2"－13"
Grade: Gr2, Gr5, Gr8
Standard: AREMA & SAE J429
Surface treatment: Black
Application areas: North America
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Day mark fish bolt specification

Size: A30, B30, A37, B37, A50, B50, B40N
Grade: 4.6, 5.6, 6.8, 8.8, 10.9
Standard: JIS E1107
Surface treatment: Black, Zinc plated, plain oiled
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