3" Dual Action Manhole Brace

3 In Dual Action Manhole Shore 2 Red
3 In Dual Action Manhole Shore Red 2 Way

3" Dual Action Manhole Brace

The Pro-Tec Equipment 3” Dual Action Manhole shore is a hydraulic bracing system designed to bridge the gap between our Manhole Brace and the Pro-Brace System.  

Designed and engineered to work in 2- and 4-sided applications, the 3” Dual Action Manhole Shore is able to incorporate a variety of sheeting materials, including the Pro-Tec Equipment Steel Overlap Sheeting, making the system ideal for vaults, C.I.P. projects, pump stations and many more projects.  

Standard features:

• 3” Steel dual action hydraulic cylinders
• 3’ Stoke
• Minimum size of 5.5’
• 2-way brackets for two sided systems
• Corners for 4-sided applications

Options:

• Pin-on Steel Tube Extensions
• Extension ranges up to 21’

3" Dual Action Manhole Shores - Four Sided Pit

Standard Metric

Four Sided Pit

Max Span Depth of Cut* B-Soils Depth of Cut* C-60 Soils Depth of Cut* C-80 Soils Depth of Cut* B-Soils Depth of Cut* C-60 Soils Depth of Cut* C-80 Soils
ft ft ft ft ft ft ft
4 On Center Spacing 4 On Center Spacing 4 On Center Spacing 3 On Center Spacing 3 On Center Spacing 3 On Center Spacing
7 25 25 10 25 25 10
8 25 25 10 25 25 10
9 25 25 10 25 25 10
10 25 25 10 25 25 10
11 25 25 10 25 25 10
12 25 25 10 25 25 10
13 25 24 10 25 25 10
14 25 22 10 25 25 10
15 25 20 10 25 24 10
16 23 18 10 25 22 10
17 22 17 10 25 21 10
18 20 16 10 24 19 10
19 18 15 10 22 17 10
20 17 13 10 20 16 10
21 15 12 10 18 14 10
22 14 12 10 17 13 10
23 13 11 9 16 12 10
24 12 10 9 14 11 9

*PSF (pounds per square foot) ratings indicate maximum shield capacities. Depths are based on B, C and C-80 soil types as described in OSHA’s 29 CFR Part 1926 Subpart P, October 31, 1989 with Type B not exceeding 45 PSF per foot of depth, Type C not exceeding 60 PSF per foot of depth and Type C-80 not exceeding 80 PSF per foot of depth. Determine actual soil pressure and consult manufacturers' tabulated data prior to each use.

Job site photos are strictly intended for general product information only and may not comply with all applicable safety standards. Always refer to manufacturers’ serialized specific tabulated data, O.S.H.A. 29 CFR 1926 Subpart P for excavations and all applicable safety standards prior to each use

3" Dual Action Manhole Shores - Two Sided Trench

Standard Metric

Two Sided Trench 

Max Span Depth of Cut* B-Soils Depth of Cut* C-60 Soils Depth of Cut* C-80 Soils Depth of Cut* B-Soils Depth of Cut* C-60 Soils Depth of Cut* C-80 Soils
ft ft ft ft ft ft ft
4 On Center Spacing 4 On Center Spacing 4 On Center Spacing 3 On Center Spacing 3 On Center Spacing 3 On Center Spacing
7 25 25 10 25 25 10
8 25 25 10 25 25 10
9 25 25 10 25 25 10
10 25 25 10 25 25 10
11 25 25 10 25 25 10
12 25 25 10 25 25 10
13 25 25 10 25 25 10
14 25 25 10 25 25 10
15 25 23 10 25 25 10
16 25 21 10 25 25 10
17 25 20 10 25 24 10
18 23 18 10 25 22 10
19 21 16 10 25 20 10
20 19 15 10 23 18 10
21 18 14 10 21 17 10
22 16 13 10 20 15 10
23 15 12 10 18 14 10
24 14 12 10 17 13 10

*PSF (pounds per square foot) ratings indicate maximum shield capacities. Depths are based on B, C and C-80 soil types as described in OSHA’s 29 CFR Part 1926 Subpart P, October 31, 1989 with Type B not exceeding 45 PSF per foot of depth, Type C not exceeding 60 PSF per foot of depth and Type C-80 not exceeding 80 PSF per foot of depth. Determine actual soil pressure and consult manufacturers' tabulated data prior to each use.

Job site photos are strictly intended for general product information only and may not comply with all applicable safety standards. Always refer to manufacturers’ serialized specific tabulated data, O.S.H.A. 29 CFR 1926 Subpart P for excavations and all applicable safety standards prior to each use

Contact Pro-Tec

Why Pro-Tec Equipment

why-pro-tec-location

Pro-Tec Equipment is designed with superior quality, safety, dependability and durability in mind. We have continued to expand our range of equipment and services to ensure you, our customer, have what you need to meet the constant challenges you face at the worksite. Your success is our success.

Learn More

Download Product Literature

Downloadable PDFs of our product lines.

View All