Pro-Tec Equipment | Manhole Trench Shields

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Manhole Shields

Manhole Trench Shields

Manhole Shields

Specially designed manhole trench shields (manhole trench box) allow your job to progress smoothly and safely. Pro-Tec Equipment's manhole shields are designed and engineered to superior strength standards, using the same rugged design and materials used on the ProSeries line. They are available in 4" single and double wall, octagonal and 4-sided as well as any special size to meet your job requirements.

Man 4 Series Increase production on manhole installation projects

TM Manhole
Manhole-Shield-diagram

Man 4 Series

Standard features

  • Industry’s first standard 4-point lift system
  • Full-length double top rail provides built-in “I” beam strength
  • Wrap-around wings
  • Professional Engineer Certified to meet or exceed O.S.H.A. requirements
  • On knife edge shields: the industry’s strongest knife edge
  • On flat bottom shields: full-length double bottom rail provides built-in “I” beam strength
  • Available in single and double wall models
  • Includes connected, 5” schedule 80 spreader pipe

Man 4 Series options

  • Foam filling – prevents soil and water buildup (on double wall shields)
  • Cutouts and replaceable doors
  • Stacking pockets
  • Custom sizes

Manhole shields – 4” Single Wall

Standard Metric
Height x Length x Width Model Weight** Pipe Clearance Shield Capacity* Depth of Cut* B-Soils Depth of Cut* C-60 Soils Depth of Cut* C-80 Soils
ft lbs in psf ft ft ft
4 X 8 X 8 MAN 4-48 S 2700 24 1380 31 23 18
4 X 10 X 10 MAN 4-410 S 3000 24 1020 22 17 13
4 X 8 X 8 MAN 4-88 S 4200 48 1140 25 19 14
8 X 10 X 10 MAN 4-810 S 4900 48 780 16 13 11
8 X 12 X 12 MAN 4-812 S 5600 48 600 13 10 8

Manhole shields – 4” Double Wall

Standard Metric
Height x Length x Width Model Weight** Pipe Clearance Shield Capacity* Depth of Cut* B-Soils Depth of Cut* C-60 Soils Depth of Cut* C-80 Soils
ft lbs in psf ft ft ft
4 X 8 X 8 MAN 4-48 3100 24 3000 67 50 38
4 X 10 X 10 MAN 4-410 3600 24 2100 46 35 26
4 X 12 X 12 MAN 4-412 4200 24 2100 47 35 26
8 X 8 X 8 MAN 4-88 4990 48 2400 52 40 31
8 X 10 X 10 MAN 4-810 5890 48 2100 47 35 26
8 X 12 X 12 MAN 4-812 6750 48 1680 36 28 22
8 X 14 X 14 MAN 4-814 7700 48 1500 32 25 20

Octagon Manhole Shield Strong, safe and mobile

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octagon-Manhole-P4180020

Octagon Manhole Shields

Pro-Tec Equipment’s Octagon Manhole Shield (OMH) combines the strength, durability and safety that is synonymous with a Pro-Tec Equipment trench shield with the mobility of a lightweight trench shield.

Standard features

  • Unique shape enables a potential savings of 3 cubic yards of fill
  • Single wall design
  • Professional Engineer 
  • Certified to meet or exceed OSHA requirements
  • Stacking pockets
  • Lifting rings

Octagon Options

  • Trapezoidal cutouts and replaceable doors
  • Custom size

Octagon Manhole Shields

Standard Metric
Model Shield Capacity* Depth of cut* B-Soils Depth of cut* C-60 Soils Depth of cut* C-80 Soils Height x Length x Width Weight
psf ft ft ft ft lbs
OMH-488 1560 35 26 20 4 x 8 x 8 2450
OMH-41010 1380 31 23 17 4 x 10 x 10 3160
OMH-41212 1260 28 21 16 4 x 12 x 12 4100
OMH-688 1560 35 26 20 6 x 8 x 8 3500
OMH-61010 1380 31 23 17 6 x 10 x 10 4450
OMH-61212 1260 28 21 16 6 x 12 x 12 6290
OMH-888 1560 35 26 20 8 x 8 x 8 4400
OMH-81010 1380 31 23 17 8 x 10 x 10 5200
OMH-81212 1260 28 21 16 8 x 12 x 12 7000

Pro-Corr Round Manhole Shield For lighter excavators and rubber-tired backhoes

Round-manhole-shield

Pro-Corr Round

Pro-Tec Equipment’s Round Manhole Shield (Pro-Corr) is designed to be used by lighter-duty excavators and rubber-tired backhoes. 

Standard features

  • Stacking pockets
  • 24” adjustable legs
  • Lifting eyes
  • Professional Engineer Certified to meet or exceed O.S.H.A. requirements

Pro-Corr options

  • Cutouts and replaceable doors
  • Custom sizes

Round Manhole Shields - 48" tall

Standard Metric
Model Outside Diameter Shield Capacity* Depth of Cut* B-Soils Depth of Cut* C-60 Soils Depth of Cut* C-80 Soils 3 Cutouts with Bolt On Doors Weight
in psf ft ft ft lbs
PC-48 98 1920 43 32 24 - 960
PC-48.5 104 1920 43 32 24 - 1020
PC-410 122 1920 43 32 24 - 1200

Round Manhole Shields - 96" tall

Standard Metric
Model Outside Diameter Shield Capacity* Depth of Cut* B-Soils Depth of Cut* C-60 Soils Depth of Cut* C-80 Soils 3 Cutouts with Bolt On Doors Weight
in psf ft ft ft in lbs
PC-88 98 1920 43 32 24 - 1600
PC-48.5 104 1920 43 32 24 - 1715
PC-810 122 1920 43 32 24 - 2030
PC-88 CU 98 1920 43 32 24 - 2300
PC-88.5 CU 104 1920 43 32 24 40”/40”/24” 2420
PC-810 CU 122 1920 43 32 24 40”/40”/24” 2775

4-Sided Manhole Shields Complete protection on all sides

Manhole 4 sided-Manhole-6270014

4-Sided Manhole Shields (Tap Boxes)

Pro-Tec Equipment’s 4-Sided Manhole Shields (tap boxes) are available in 3” and 4” sidewalls and are designed to allow complete protection on all sides.

Standard features

  • Industry’s first standard 4-point lift system
  • Full-length double top rail provides built-in “I” beam strength
  • Professional Engineer Certified to meet or exceed O.S.H.A. requirements
  • On knife edge shields: the industry’s strongest knife edge
  • On flat bottom shields: full-length double bottom rail provides built-in “I” beam strength

4-sided options

  • Foam filling – prevents soil and water buildup
  • Cutouts and replaceable doors
  • Stacking pockets
  • Custom sizes

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Why Pro-Tec Equipment

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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.

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*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.