Caldwell BLG Barrier Grab for Concrete Barriers

The Caldwell Model BLG Barrier Grab is a heavy-duty lifting attachment designed for safe handling of concrete barriers, jersey barriers, and precast highway components.

It is widely used in road construction and infrastructure work where fast, secure, and repeatable barrier placement is required.

The BLG series is built with a compact, rugged frame and engineered for controlled lifting of barriers typically ranging from 6" to 12" nominal top width. It uses an automatic latching system and self-centering geometry to reduce operator interaction during engagement and release, improving both safety and efficiency on the jobsite.

Key Features

• Heavy-duty barrier lifting grab for precast and highway barriers
• Handles concrete barriers from approximately 6"–12" top width
• Stainless steel auto-latch system for secure engagement
• Locating assembly automatically orients the grab on the barrier
• Pivoting gripping pads conform to load shape for better contact
• Replaceable polyurethane pads to protect concrete surfaces
• Optional alloy steel “dog point” pads for painted/coated barriers
• Centering guide cut-out helps position grab correctly over barrier
• Extended operator handles keep workers clear of suspended loads
• Adjustable handle positions depending on application
• Self-centering lifting eye for balanced rigging
• Fork truck compatible handling design
• Built for repetitive high-cycle construction use
• Designed to ASME B30.20 and BTH-1, Service Class 3 standards

Applications

• Highway barrier installation and removal
• Jersey barrier lifting and placement
• Precast concrete handling
• DOT and infrastructure projects
• Bridge and roadway construction
• Utility and municipal construction work

Specifications (Common BLG Models)

Exact configuration may vary depending on pad type and model suffix.

Design & Operating System

The BLG uses an automatic engagement system that allows the grab to lock onto the barrier when the crane line is properly slackened. Once engaged, lifting force secures the grip, and the locating assembly helps ensure the tong aligns correctly without manual adjustment.

This design reduces the need for workers to position themselves near the load, which is a major safety improvement in highway and roadside operations.

Safety & Construction Benefits

• Reduces manual handling during barrier placement
• Improves operator distance from suspended loads
• Helps prevent surface damage to concrete barriers
• Speeds up repetitive lifting cycles
• Provides consistent grip alignment across varying barrier conditions
• Suitable for demanding DOT jobsite environments

Standards & Compliance

• ASME B30.20 (Below-the-hook lifting devices)
• ASME BTH-1 (Design of below-the-hook lifting devices)
• Service Class 3 (high-cycle industrial use rating)

Technical & Catalog Information (Replace “Downloads” Section)

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Engineering & Catalog Resources

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Available Documentation:

• Caldwell Master Catalog (Barrier Grabs section)
• BLG technical specification pages
• Dimensional drawings and load charts
• Operating and safety instructions
• Maintenance and inspection guidelines