Description
8′ x 20′ ESC ASF4 Steel-Framed Aluminum Trench Box
The ESC ASF4 8′ x 20′ steel-framed aluminum trench box combines a steel frame with aluminum panels to provide a durable trench shield for utility, construction, and excavation work. Its 8-foot shield height and 20-foot length provide an extended protected working area for underground utility and infrastructure projects where a longer trench shield is appropriate.
The ASF4 8×20 has a 384 PSF panel capacity and weighs approximately 7,220 lbs. It provides 48 inches of pipe clearance and 220 inches (18′4″) of length between the spreaders.
Manufacturer data provides maximum depth ratings of 13 feet in B-45 soil, 10 feet in C-60 soil, and 9 feet in C-80 soil, subject to the manufacturer’s tabulated data, proper shield configuration, and evaluation by the project’s competent person.
Key Features
- 8′ shield height
- 20′ shield length
- Steel-framed aluminum construction
- 384 PSF panel capacity
- 7,220 lb approximate weight
- 48″ pipe clearance
- 18′4″ length between spreaders
- Extended protected working area for utility and underground construction
Specifications
| Manufacturer | ESC |
|---|---|
| Product Line | ASF4 Aluminum Steel Framed Shield |
| Shield Height | 8 ft (96 in) |
| Shield Length | 20 ft (240 in) |
| Weight | 7,220 lbs |
| Panel Capacity | 384 PSF |
| Pipe Clearance | 48 in |
| Length Between Spreaders | 220 in (18′4″) |
| Construction | Steel and Aluminum |
Maximum Depth Ratings
| Soil Classification | Maximum Depth Rating |
|---|---|
| B-45 | 13 ft |
| C-60 | 10 ft |
| C-80 | 9 ft |
8′ x 20′ ESC ASF4 Price and Spreader Configuration
The 8′ x 20′ ESC ASF4 Steel-Framed Aluminum Trench Box is priced at $24,820 and comes standard with four 36″ spreaders. This configuration provides a complete trench shield setup ready for assembly and use.
Other spreader sizes are available to accommodate different trench widths and jobsite requirements. Contact Iron Lot for available spreader options, pricing, and assistance selecting the appropriate configuration for your excavation.
Applications
The 8′ x 20′ ASF4 provides a long protected work area for underground utility and infrastructure excavations where additional working length is required. Potential applications include:
- Water and sewer utility construction
- Underground pipe installation
- Pipe repair and replacement
- Utility main installation and rehabilitation
- Utility tie-ins and service connections
- Street and easement excavations
- General underground utility and infrastructure construction
Suitability depends on the actual excavation and the dimensions of the pipe, structure, utility component, and equipment involved. Contractors should verify required working clearances and the manufacturer’s allowable shield configuration before use.
Steel-Framed Aluminum Construction
The ESC ASF4 series combines aluminum panels with a steel frame, providing contractors with an alternative to conventional all-steel trench shields. At approximately 7,220 lbs, the 8×20 provides an 8-foot shield height and 20-foot overall length while retaining the steel-framed aluminum construction of the ASF4 series. Contractors should verify that the equipment used to transport, install, reposition, and remove the shield has adequate lifting capacity at the required operating radius.
Safety and Proper Use
Trench shields must be selected and used in accordance with the manufacturer’s current tabulated data and all applicable OSHA, state, and local excavation-safety requirements. A competent person must evaluate soil conditions, excavation depth, surcharge loads, groundwater, adjacent structures, equipment configuration, and changing jobsite conditions.
The maximum depth ratings shown above should not be used by themselves to determine whether this shield is appropriate for a particular excavation. Refer to the applicable ESC tabulated data for complete requirements, limitations, and allowable configurations.
Order the ESC ASF4 8×20 from Iron Lot
Contact Iron Lot for current availability, alternate spreader configurations, shipping information, and assistance selecting the right ESC steel-framed aluminum trench shield for your project.
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