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Caldwell Dura-Mod® DM50 Modular Spreader Beam System

The Caldwell Dura-Mod® Model DM50 is a 50 metric ton modular spreader beam system designed to provide maximum flexibility for lifting heavy and oversized loads. Its innovative bolt-together design allows users to configure beam spans from 3 feet to 41 feet using interchangeable spreader sections, end fittings, and drop links. Instead of purchasing multiple fixed-length spreader beams, contractors and industrial lifting professionals can build the exact beam configuration required for each lift using a common set of components.
Designed for demanding industrial environments, the DM50 is manufactured to meet ASME B30.20 and ASME BTH-1 Design Category B, Service Class 0 requirements. The modular system minimizes storage space, reduces transportation costs, and provides outstanding versatility for steel fabrication, precast concrete, energy, shipbuilding, heavy construction, manufacturing, and industrial maintenance applications.

Features
Modular Bolt-Together Design

Modular Dura-Mod® construction
Configure beam lengths from 3 ft to 41 ft

Multiple spread combinations
Reusable modular components
Easy field assembly
Expandable system
Reduces equipment inventory
Simplifies transportation
Lower ownership costs
Ideal for contractors with varying lift requirements.

50 Metric Ton Capacity

Rated capacity up to 50 metric tons

Engineered for heavy industrial lifting
Capacity determined by span and sling angle
Designed using Caldwell engineering standards
Suitable for demanding lifting applications.

Dura-Mod® Component System
The system consists of interchangeable components including:

End Fittings
Drop Links
1 ft Spreader Sections
2 ft Spreader Sections
3 ft Spreader Sections
6 ft Spreader Sections
12 ft Spreader Sections
Bolt Kits

This modular design allows users to create numerous beam configurations using the same component inventory.
Heavy-Duty Construction

Engineered steel construction
Precision-machined connection points
High-strength bolted joints
Industrial powder-coated finish
Designed for years of commercial service
Built for demanding lifting environments.

Reusable Bolt System

Bolt kits may be reused
Anti-seize thread coating recommended
Simplifies maintenance
Reduces replacement hardware costs
Easy field servicing.

Benefits

Replace multiple fixed spreader beams
Lower transportation costs
Easier storage
Fast configuration changes
Lower equipment investment
Greater lifting flexibility
Modular expansion capability
Ideal for rental fleets
Reduced downtime
Long service life

Technical Specifications

Specification
Value

Manufacturer
Caldwell

Product Series
Dura-Mod®

Model
DM50

Capacity
50 Metric Tons

Beam Type
2-Point Modular Spreader Beam

Adjustable Span
3 ft – 41 ft

Construction
Modular Bolt-Together Steel

Design Standard
ASME B30.20

Design Category
BTH-1 Design Category B

Service Class
Class 0

System Components

Component
Part Number
Weight

End Fitting
DM50-EF
100 lb

Drop Link
DM50-DL
35 lb

12 ft Spreader Section
DM50-SS-12
500 lb

6 ft Spreader Section
DM50-SS-6
275 lb

3 ft Spreader Section
DM50-SS-3
165 lb

2 ft Spreader Section
DM50-SS-2
125 lb

1 ft Spreader Section
DM50-SS-1
85 lb

Bolt Kit
116116
4.2 lb

Recommended Hardware

Component
Recommendation

Top Shackle
35-Ton Carbon Bolt-Type

Bottom Shackle
25-Ton Carbon Bolt-Type

Note: Slings and shackles are supplied separately. Synthetic web slings, chain slings, or wire rope slings may be used as part of a properly engineered lifting plan.

Starter Set Includes
The DM50 Starter Set includes:

2 End Fittings
2 Drop Links
3 Twelve-Foot Spreader Sections
Required Bolt Kits

The starter package provides a foundation that can be expanded with additional spreader sections as lifting requirements change.

Common Applications

Structural steel erection
Precast concrete lifting
Heavy equipment installation
Industrial machinery moving
Power generation
Wind energy projects
Oil and gas facilities
Fabrication shops
Bridge construction
Marine and shipyard lifting
Manufacturing plants
Mining operations
Utility construction
Modular building installation

Industries Served

Construction
Steel fabrication
Manufacturing
Mining
Aerospace
Shipbuilding
Utilities
Oil & Gas
Energy
Heavy industrial maintenance
Crane rental
Rigging contractors

Advantages Over Fixed-Length Spreader Beams

Dura-Mod® DM50
Traditional Fixed Beam

Adjustable spans
One fixed length

Modular components
Multiple beams required

Lower storage requirements
Larger storage footprint

Easier transportation
More transport equipment

Expandable system
New beam required for new span

Lower long-term ownership cost
Higher fleet investment

Frequently Asked Questions
What is the Caldwell DM50 used for?
The DM50 is a modular spreader beam system used to safely lift heavy loads while maintaining proper sling angles and reducing compressive forces on the load.
What is the lifting capacity of the DM50?
The system is rated for up to 50 metric tons, with allowable capacity depending on beam span and sling angle. Always reference the official Capacity vs. Span chart before lifting.
How many beam lengths can be built?
The modular system can be configured in spans from 3 feet to 41 feet using interchangeable spreader sections.
Can the bolt kits be reused?
Yes. Caldwell specifies that the bolts, nuts, and washers may be reused when anti-seize thread coating is applied during assembly.
Are shackles included?
No. Shackles and slings are not included and must be selected separately as part of the lifting plan.
Which slings can be used?
The DM50 can be used with properly selected synthetic web slings, wire rope slings, or chain slings as specified in the lift plan.
Why choose a modular spreader beam?
A modular system reduces equipment costs, minimizes storage space, simplifies transportation, and provides the flexibility to configure numerous beam lengths from one reusable set of components.
Brand:CaldwellSKU:DM50-SS-1Tags:Free Shipping, Spreader Bars / BeamsOptions:1 ft. Spreader Bar, 2 ft. Spreader Bar, 3 ft. Spreader Bar, 6 ft. Spreader Bar, 12 ft. Spreader Bar