DH-22-57.pdfProduct Description
The Miller DuraHoist Davit Mast Extension is built to expand the versatility and reach of your existing DuraHoist system, especially in height-restrictive environments where added clearance is needed. Designed for use with base sleeves, this DH-22 lower mast extension works in combination with the DH-3 one-piece mast to provide more installation options and improved accessibility for confined space and elevated work applications. The two-piece mast design allows components to be arranged in multiple configurations, making it easy to mount winches and/or self-retracting lifelines based on job requirements. A convenient tool-less setup breaks the system into lightweight components, simplifying storage, transportation, and assembly on the jobsite. Constructed from high-grade aluminum alloys and carbon steel and finished in a high-visibility safety yellow powder coat, this mast extension offers strong performance, corrosion resistance, and long-lasting reliability.
Features:
- For use with base sleeves in DuraHoist systems
- Ideal for height-restricted applications requiring added mast length
- Two-piece design allows multiple configuration options
- Supports multiple winches or SRL systems
- Tool-less, lightweight construction for fast setup and transport
- Finished in safety yellow powder coat for high visibility
Materials:
- General Construction: Aluminum / Steel
- Hardware: Grade 5, zinc-plated
- Material Structure: 6061-T6, 5052-H32, 7075-T6 aluminum and carbon steel
- Finish: High-visibility safety yellow powder coat
Technical Specifications:
- Rated Capacity: 450 lbs. (204 kg)
- Minimum 4:1 design factor
- Mast Moment Proof Load: 90,000 in-lbs. (10,200 N·m)
- Weight (DH-22, 57"): 23 lbs. (10.4 kg)
Compatibility:
- Designed to withstand the proof-load rating of all standard Miller DuraHoist masts
