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EFFICIENCY PRODUCTION, INC.Hydraulic Shoring Product Guide
CYLIN
DER
SPAC
ING SHORE RAILS
VERTICAL SHORES n HORIZONTAL WALERS n HI-CLEARANCE SHORES n ALUM-A-SHIELD
CYLINDER PRESSURE (PSF) 1,500750
22”
48”
5’
7’
2’
1.5’
9’
12’
16’
Hydraulic Shoring Product Guide
AMERICA’S TRENCH BOX BUILDER™
www.efficiencyproduction.com • 800-552-8800 • 517-676-8800 • Fax 517.676.0373America’s Trench Box Builder™America’s Trench Box Builder™
AMERICA’S TRENCH BOX BUILDER™
Hydraulic Shoring Product Guide
3.5’
Uses: Where trench shields are used to protect workers against cave-ins, hydrau-lic shores are used to actually apply pres-sure to trench walls to prevent cave-ins.
Efficiency Aluminum Hydraulic shores and shields are an excellent lightweight resource for working around existing utilities, supporting trench walls near structures, curbs, or sidewalks; and for pipe installations where a larger backhoe cannot be used.
Hydraulic shores are installed and removed from the surface, thus avoiding the risk of working in an unshored trench.
Hydraulic shores offer superior versatility in trenches up to 25 ft. deep and 12 ft. wide.
A cylinder extension system adds to the shores range which improves on-site adaptability when encountering excavations of varying widths.
These high strength aluminum shores are available in standard or heavy duty models and can be used to meet OSHA regulations in A, B, or C soils.
Features:■ Two 8 in. wide rails ranging in size
from 1.5 ft. to 16 ft. tall■ 2 in. diameter hydraulic cylinders■ Oversleeve to protect cylinder■ Fittings and hose■ Cylinder pads and socket pads■ Swivel fitting protector
Options & Accessories: ■ Standard or Heavy Duty Rails■ Cylinder Extension System■ 5 gal. Pump Can (plastic or steel)■ Biodegradable Shoring fluid■ Release tool & Removal hook■ Chudoform (4 ft. x 8 ft. sheets)■ Finger guards■ Repair kits
2 Hydraulic Shoring Product Guide®
Superior versatility in trenches up to 25 ft. deep and 12 ft. wide
Hydraulic Vertical ShoresHydraulic Vertical ShoresHydraulic Vertical Shores
Installation 2 Installation 3Installation 1
Removal 3Removal 1
Release shoring fluid at hose fitting with the release tool and allow shore to depressurize. The released fluid is biodegradable.
Connect hydraulic hose line from pump to shore. Hook release tool through handle and lower shore into trench.
Continue pulling the shore away from the trench until it folds flat. Finger guards help protect from pinch points.
When shore is in place and pressurized to a safe working range, disconnect the hose fitting with the release tool.
Removal 2
Pull the shore from the trench with the removal hook and release tool. The shore will scissor back toward a folded position.
Place shores in accordance with the Tabulated Data and begin pressurizing the shore. Normal operating pressure is 750 to 1500 psi.
www.efficiencyproduction.com • 800-552-8800 • 517-676-8800 • Fax 517.676.0373
Safe, easy shoring installation & removal process
Installation & RemovalInstallation & RemovalInstallation & Removal
Vertical Shore Rails - StandardSTANDARD
Rail (Lg. x CB)Cross Brace Width (In.) Cylinders
Weight (Lbs.)
S-1.5X1727 17 - 27 1 20S-1.5X2236 22 - 36 1 23S-1.5X2846 28 - 46 1 25S-1.5X3455 34 - 55 1 28S-1.5X4269 42 - 69 1 32S-1.5X5288 52 - 88 1 36
S-2X1727 17 - 27 1 22S-2X2236 22 - 36 1 24S-2X2846 28 - 46 1 28S-2X3455 34 - 55 1 30S-2X4269 42 - 69 1 34S-2X5288 52 - 88 1 38
S-3.5X1727 17 - 27 2 41S-3.5X2236 22 - 36 2 50S-3.5X2846 28 - 46 2 55S-3.5X3455 34 - 55 2 60S-3.5X4269 42 - 69 2 68S-3.5X5288 52 - 88 2 77
S-5X1727 17 - 27 2 55S-5X2236 22 - 36 2 60S-5X2846 28 - 46 2 65S-5X3455 34 - 55 2 70S-5X4269 42 - 69 2 78S-5X5288 52 - 88 2 87
S-7X1727 17 - 27 2 65S-7X2236 22 - 36 2 70S-7X2846 28 - 46 2 75S-7X3455 34 - 55 2 80S-7X4269 42 - 69 2 88S-7X5288 52 - 88 2 97
S-9X1727 17 - 27 3 84S-9X2236 22 - 36 3 90S-9X2846 28 - 46 3 102S-9X3455 34 - 55 3 108S-9X4269 42 - 69 3 120S-9X5288 52 - 88 3 132S-9X4269 42 - 69 3 120S-9X5288 52 - 88 3 132
Hydraulic Shores in trench
Hydraulic Vertical Shore with two cylindersStandard Rails
Hydraulic Shores with boards
Hydraulic Shores in trench
4 Hydraulic Shoring Product Guide®
Six sizes of STANDARD vertical shores
Shoring SpecificationsShoring SpecificationsShoring Specifications
Vertical Shore Rails - Heavy DutyHEAVY DUTY Rail (Lg. x CB)
Cross Brace Width (In.) Cylinders
Weight (Lbs.)
H-3.5X1727 17 - 27 2 27H-3.5X2236 22 - 36 2 29H-3.5X2846 28 - 46 2 61H-3.5X3455 34 - 55 2 66H-3.5X4269 42 - 69 2 74H-3.5X5288 52 - 88 2 82
H-5X1727 17 - 27 2 61H-5X2236 22 - 36 2 65H-5X2846 28 - 46 2 72H-5X3455 34 - 55 2 77H-5X4269 42 - 69 2 85H-5X5288 52 - 88 2 93
H-7X1727 17 - 27 2 78H-7X2236 22 - 36 2 82H-7X2846 28 - 46 2 89H-7X3455 34 - 55 2 94H-7X4269 42 - 69 2 102H-7X5288 52 - 88 2 110
H-9X1727 17 - 27 3 104H-9X2236 22 - 36 3 110H-9X2846 28 - 46 3 120H-9X3455 34 - 55 3 128H-9X4269 42 - 69 3 140H-9X5288 52 - 88 3 152
H-12X1727 17 - 27 3 128H-12X2236 22 - 36 3 134H-12X2846 28 - 46 3 145H-12X3455 34 - 55 3 152H-12X4269 42 - 69 3 164H-12X5288 52 - 88 3 176
H-16X1727 17 - 27 4 170H-16X2236 22 - 36 4 177H-16X2846 28 - 46 4 191H-16X3455 34 - 55 4 202H-16X4269 42 - 69 4 218H-16X5288 52 - 88 4 234S-9X4269 42 - 69 3 120S-9X5288 52 - 88 3 132
Heavy Duty Vertical Shore with three cylinders
Heavy Duty Shores with boards
Heavy Duty Shores in trench
Heavy Duty Rails
Universal One-Piece Extension
Part No. Length
(In.)Weight (Lbs.)
EXU6 6 4EXU12 12 6EXU18 18 7EXU24 24 9EXU30 30 10EXU36 36 11EXU42 42 12EXU48 48 13EXU56 56 14
www.efficiencyproduction.com • 800-552-8800 • 517-676-8800 • Fax 517.676.0373
Six sizes of HEAVY DUTY vertical shores
Shoring SpecificationsShoring SpecificationsShoring Specifications
Installation & Removal ToolsInstallation ToolsPart # Description LengthAS510000 Shoring Release Tool 30”AS510001 Shoring Release Tool 48”AS510002 Shoring Release Tool 72”AS510003 Shoring Release Tool 96”8350157 Waler Release Tool 48”Removal ToolsPart # Description LengthAS510004 Shoring Removal Hook 30”AS510005 Shoring Removal Hook 48”AS510006 Shoring Removal Hook 72”AS510007 Shoring Removal Hook 96”
Cylinder Test StandPart # ASCYLTEST
Chudoform, Handle, & Corner ProtectorsPart # Description59425 4x8 Sheet of Chudoform8345187 Stnd. Universal Handle59244 Corner Protector
Chudoform (Shoring Board)
Finger Guard
Handle
Release ToolRemoval Hook
Corner Protector
Hose Bridal ManifoldPart # DescriptionAS513100 Manifold 3 CylinderAS513101 Manifold 4 Cylinder
Hydraulic Pump CanPart # DescriptionAS512001 5 Gallon Hand Pump-SteelAS512002 5 Gallon Hand Pump-Plastic
Shoring Fluid Part # Description QuantityAS510014 Shore Fluid 1 Qrt.AS510024 Shore Fluid 12 Qrt./CaseAS510028 No-Freeze SF 1 GalAS510032 No-Freeze SF 6 Gal/Case*All shoring fluid is environmentally safe
Hyd. Rail StraightenerPart # AS-RS-ADJ
Shoring Barrel WrenchPart # DescriptionAS510023 2” Cylinder Barrel Wrench
6 Hydraulic Shoring Product Guide®
Hydraulic shoring options and accessories
Shoring AccessoriesShoring AccessoriesShoring Accessories
Efficiency Production’s Hydraulic Shoring Pump and container were developed especially for hydraulic shoring systems. The patented, corrosion-resistant pump assembly and five-gallon plastic container give a more reliable pumping system for your hydraulic shores.
Features■ Five gallon, rust-proof container■ Stainless steel plunger rod■ Only two internal working parts■ Adjustable handle with rubber grip■ Front Lifting Handle■ Internal check valve■ Stainless steel plunger rod■ UV stabilized, high-impact polymer■ Recessed foot hold■ Dent resistant■ Protected recessed fitting guard■ Custom colors and logos available
with quantity purchase, plastic pump can only (Right)
POWER PUMP■ Gasoline powered■ 1000-PSI pump pressure■ 12-gallon plastic reservoir with
clean out valve■ Self-priming pump■ Replaceable hydraulic filter■ Weight: 135 lbs. empty; 235 lbs.
filled■ Also Available in DC Model
www.efficiencyproduction.com • 800-552-8800 • 517-676-8800 • Fax 517.676.0373
Metal or plastic hand pumps for hydraulic shores
Shoring Hand PumpShoring Hand PumpShoring Hand Pump
Walers - Standard RailsSTANDARD
Rail Lg. x Cr. Br.Cross Brace Width (In.) Cylinders
Weight (Lbs.)
WS-6X36 22 - 36 2 97WS-6X46 28 - 46 2 105WS-6X55 34 - 55 2 109WS-6X69 42 - 69 2 117WS-6X88 52 - 88 2 125
WS-8X36 22 - 36 2 121WS-8X46 28 - 46 2 129WS-8X55 34 - 55 2 133WS-8X69 42 - 69 2 141WS-8X88 52 - 88 2 149
WS-12X36 22 - 36 3 180WS-12X46 28 - 46 3 188WS-12X55 34 - 55 3 198WS-12X69 42 - 69 3 210WS-12X88 52 - 88 3 218
Walers - Heavy Duty RailsHEAVY DUTY
Rail Lg. x Cr. Br.Cross Brace Width (In.) Cylinders
Weight (Lbs.)
WH-6X36 22 - 36 2 167WH-6X46 28 - 46 2 175WH-6X55 34 - 55 2 179WH-6X69 42 - 69 2 187WH-6X88 52 - 88 2 195
WH-8X36 22 - 36 2 215WH-8X46 28 - 46 2 223WH-8X55 34 - 55 2 227WH-8X69 42 - 69 2 235WH-8X88 52 - 88 2 243
WH-10X36 22 - 36 2 262WH-10X46 28 - 46 2 270WH-10X55 34 - 55 2 274WH-10X69 42 - 69 2 282WH-10X88 52 - 88 2 290
WH-12X36 22 - 36 2 309WH-12X46 28 - 46 2 317WH-12X55 34 - 55 2 321WH-12X69 42 - 69 2 329WH-12X88 52 - 88 2 337
WH3-16X36 22 - 36 3 416WH3-16X46 28 - 46 3 428WH3-16X55 34 - 55 3 434WH3-16X69 42 - 69 3 446WH3-16X88 52 - 88 3 458
Horizontal Hydraulic Walers
8 Hydraulic Shoring Product Guide®
Hydraulic Horizontal Walers provide increased depth rating
Horizontal WalersHorizontal WalersHorizontal Walers
Hi-Clearance Shores - Heavy Duty RailsModel -
Rail Lg. x Cr. Br.Cross Brace Width (In.) Cylinders
Weight (Lbs.)
HI-CLEAR-8X36 22 - 36 3 244HI-CLEAR-8X46 28 - 46 3 256HI-CLEAR-8X55 34 - 55 3 262HI-CLEAR-8X69 42 - 69 3 274HI-CLEAR-8X88 52 - 88 3 286
HI-CLEAR-10X36 22 - 36 4 300HI-CLEAR-10X46 28 - 46 4 316HI-CLEAR-10X55 34 - 55 4 324HI-CLEAR-10X69 42 - 69 4 340HI-CLEAR-10X88 52 - 88 4 356
HI-CLEAR-12X36 22 - 36 4 343HI-CLEAR-12X46 28 - 46 4 359HI-CLEAR-12X55 34 - 55 4 367HI-CLEAR-12X69 42 - 69 4 383HI-CLEAR-12X88 52 - 88 4 399
HI-CLEAR-16X36 22 - 36 5 450HI-CLEAR-16X46 28 - 46 5 470HI-CLEAR-16X55 34 - 55 5 480HI-CLEAR-16X69 42 - 69 5 500HI-CLEAR-16X88 52 - 88 5 520
Hi-Clearance Shores
Advantages:Efficiency’s Hi-Clearance Shore
provide the greatest pipe-clearance—up to 84 in.—of any hydraulic vertical shores on the market today. Additionally, Hi-Clearance Shores feature all the options and accessories of regular hydraulic vertical shores.
www.efficiencyproduction.com • 800-552-8800 • 517-676-8800 • Fax 517.676.0373
Superior versatility and maximum pipe clearance
Hi-Clearance ShoresHi-Clearance ShoresHi-Clearance Shores
Rescue Shores - Standard RailsModel -
Rail Lg. x Cr. Br..Cross Brace Width (In.) Cylinders
Weight (Lbs.)
S-1.5X1727-R 17 - 27 1 35S-1.5X2236-R 22 - 36 1 38S-1.5X2846-R 28 - 46 1 40S-1.5X3455-R 34 - 55 1 43S-1.5X4269-R 42 - 69 1 47S-1.5X5288-R 52 - 88 1 51
S-3.5X1727-R 17 - 27 2 74S-3.5X2236-R 22 - 36 2 83S-3.5X2846-R 28 - 46 2 88S-3.5X3455-R 34 - 55 2 93S-3.5X4269-R 42 - 69 2 101S-3.5X5288-R 52 - 88 2 110
S-5X1727-R 17 - 27 3 93S-5X2236-R 22 - 36 3 98S-5X2846-R 28 - 46 3 103S-5X3455-R 34 - 55 3 108S-5X4269-R 42 - 69 3 116S-5X5288-R 52 - 88 3 125
Rescue shore with Traction Tread Plate and new Positive Locking Cylinder
Positive Locking Cylinder
U-Style Swivel Socket Pad
Advantages:Time is critical in a trench rescue
and air jacks are time consuming to install safely. Air jacks are also heavy and need to be nailed to cumbersome planking or plywood inside of an already unsafe trench, putting the rescue crew at great risk of becoming trapped themselves.
Hydraulic Rescue Shores are quickly positioned and pressurized from the surface, eliminating the need for crew members to enter an unsafe trench to install shoring.
Rescue Shores feature a pivoting socket pad that swivel to support irregular trenches. Rails have traction tread plates that increase the holding grip on shoring board surface. Rescue Shores now come standard with positive locking cylinders that protects against the unlikely event of a collapsed cylinder due to loss of pressure.
10 Hydraulic Shoring Product Guide®
Fast, lightweight shoring for trench rescue operations
Rescue ShoresRescue ShoresRescue Shores
Features:n Interchangeable static or hydraulic
telescoping QuickBraces as spreadersn Horizontal waler along sidewall
for maximum depth ratingn Reinforced steel caps on top and
bottom for added durabilityn Molded tubular end members for
additional strength and durabilityn Recessed stacking pocketsn Leg kit (Optional)
Alum-A-Shield is a single wall corrugated aluminum trench shield that is designed to be light and strong. Available with static or hydraulic spreader sets, Alum-A-Shield is designed specifically for municipalities, utility workers, and contractors who use rubber-tired backhoe/loaders and small excavators for trenching.
Side cut-out doors can be added for crossing utilities, and end kits allow for three or four-sided protection.
Alum-A-Shield - Hydraulic QuickBracesModel -
Rail Lg. x Cr. Br.Depth of Cut (Ft.) Weight
(Lbs.) C-60 C-80AH46 21 16 610AH48 21 16 800AH410 18 14 1,000AH412 12 9 1,200
AH66 21 16 715AH68 21 16 940AH610 18 14 1,165AH612 12 9 1,390
AH86 21 16 815AH88 21 16 1,070AH810 18 14 1,330AH812 12 9 1,640
AH106 21 16 1,060AH108 21 16 1,200AH1010 18 14 1,495AH101 12 9 1,780
• Rectangular steel tubing fully protects enclosed cylinder system and spring return
• Single-pin connection to waler allows for easy assembly
• Adjustable sizes to accommodate various shielding widths
• Telescoping oversleeves that pin every 2 in. for extra protection
• Quick-connecthydraulicfittingsandpinsallowforeasyassembly,disassembly,or change out
• Custom needle values give bi-directional sealing capabilities for independent pressure control
• Manifold has bleed-off valve to relieve hydraulic pressure • No special tools needed for disassembly or maintenance
SPRINGRETURN
CYLINDER
QuickBrace Internal Components
Hydraulic QuickBraces
Alum-A-Shield with End Kit
www.efficiencyproduction.com • 800-552-8800 • 517-676-8800 • Fax 517.676.0373
Corrugated aluminum trench shield with hydraulic spreaders
Alum-A-Shield™Alum-A-Shield™Alum-A-Shield™
Features:n Designed to work in combination
with Vertical Hydraulic Shoresn 5 or 7 ft. Corrugated Aluminum Railsn Two 8 in. wide horizontal walers
attach rail for maximum depth ratingn Reinforced steel caps on rail’s top
and bottom for added durabilityn Utilizes hydraulic telescoping
Quick-Braces
Efficiency Production’s corrugated aluminum hydraulic end shores are ideal for adding third-sided protection to a trench when working closely to buildings or existing structures.
End Shores are equipped with end panel tubes and brackets to secure corrugated aluminum sheeting to the enclosed hydraulic cylinders. The end panel tubes can secure sheeting up to 4 ft. off the bottom of the trench to accommodate utility installation under the end panel.
End Shores are designed to work in combination with vertical hydraulic shores.
End Shores - Corrugated Aluminum RailsModel -
Rail Lg. x Cr. Br.Cross Brace Width (In.) Cylinders
Weight (Lbs.)
S-3.5X1727-E 17 - 27 2 215S-3.5X2236-E 22 - 36 2 230S-3.5X3455-E 34 - 55 2 240S-3.5X4269-E 42 - 69 2 255S-3.5X5288-E 52 - 88 2 270
S-5X1727-E 17 - 27 2 240S-5X2236-E 22 - 36 2 250S-5X3455-E 34 - 55 2 280S-5X4269-E 42 - 69 2 310S-5X5288-E 52 - 88 2 350
S-6X1727-E 17 - 27 2 250S-6X2236-E 22 - 36 2 260S-6X3455-E 34 - 55 2 290S-6X4269-E 42 - 69 2 320S-6X5288-E 52 - 88 2 360
NOTE: Tubes may be staggered to secure sheeting in place if required
End Panel Bracket
Pin End Panel Tube
12 Hydraulic Shoring Product Guide®
End ShoresEnd ShoresEnd ShoresCorrugated aluminum rails & end panels
Tool Box
Tool Box
Hydraulic Shores Rack
Hydraulic Shores Rack
Hydraulic Shores Rack
Build-A-Box Panel Rack
Build-A-BoxPanel Rack
XLAP Alum. Shield
Build-A-Box Spreader Rack
Build-A-BoxSpreader Rack
Build-A-Box Corner Post Rack
Shoring Board Rack
Shoring Board RackHydraulic Cylinder Test Stand
Build-A-Box Panel Rack
Tool Box & Work Bench
www.efficiencyproduction.com • 800-552-8800 • 517-676-8800 • Fax 517.676.0373
FullStock Aluminum Shoring Trailer (FAST)
Shoring TrailerShoring TrailerShoring TrailerEfficiency’s FullStock
Aluminum Shoring Trailer (FAST) is equipped with a variety of custom-built options for stocking shoring equipment for fast, resourceful use in the field.
Shoring trailers are ideal for Public Works crews encountering a variety of trench projects each day, since all of the necessary tools are available...no return trips to the yard for missing equipment.
The FullStock trailer can also save storage space in the equipment garage since all of the pieces can remain loaded and locked on the trailer.
All racks and other options can be re-sized, repositioned, and re-configured to fit your specific needs.
Features:n High strength steel constructionn Dual axlen Racks can be fitted to your trailer
Aluminum Shield Series: n Aluminum shield racks that fit a
XLAP, Alum-A-Shield or Corru-Liten Modular Build-A-Box™ panel and
corner post racksn Spreader racksn Workbench and toolbox for Build-
A-Box pins and keepers, slings, or other tools
Vertical Shores Series:n Hydraulic Shores rackn Shoring Board rackn Tool box for shoring accessories,
parts, and toolsn Toolbox with cylinder Repair Kit and workbenchn Hydraulic Cylinder Test Stand
14 Hydraulic Shoring Product Guide®
Tabulated data and soil classification
How to Use ShoresHow to Use ShoresHow to Use ShoresSoil Classification: The soil descriptions for OSHA Type A, B, and C soils are based on Appendix A to OSHA Safety requirements defined in CFR, Part 1926, Subpart P - Excavations and Trenches.
No soil is Type “A” (25 lbs. psf) if:Cohesive soil with unconfined compressive strength greater than 1.5 tsf.• It is fissured.• It is subject to vibration.• It has been previously disturbed.• It is part of a sloped, layered system
which dips into the excavation on a slope of 4 horizontal to 1 vertical [4H:1V] or greater.
• It is subject to other factors requiring classification as less stable.
Type “B” Soil (45 lbs. psf)Cohesive soil with unconfined compressive strength greater than 0.5 tsf but less than 1.5 tsf.• Granular non-cohesive soils, e.g.,
gravel, silt, silt loam, sandy loam.• Type “A” fissured or subject to
vibration.• Unstable dry rock.• It is part of a sloped, layered system
which dips into the excavation on a slope less steep than [4H:1V], but only if the material would otherwise be classified as type “B”.
Type “C-60” Soil (60/80 lbs. psf)Cohesive soils with unconfinedcompressive strength of 0.5 tsf or less.• Granular soils including gravel,
sand, and loamy sand.• Submerged soil or soil from which
water is freely seeping.• Submerged rock that is not stable.• Sloped, layered system which
slopes into an excavation at an angle of 4H:1V or steeper.
Manufacturers Tabulated Data General Informationn Efficiency Hydraulic Aluminum
Shoring System tabulated data is based on the OSHA Safety requirements defined in CFR, Part 1926, Subpart P - Excavations and Trenches.
n The Competent Person shall continually monitor the excavation for signs of deterioration such as seepage of water or flowing soil into the excavation. Changing soil conditions may require adjustments to the shoring system.
n The faces of the excavation shall be straight and near vertical. Shoring members must bear on firm soil or solid filler.
n Trenches shall be kept dry and free of water at all times.
n Once cylinders are pressurized between 750 - 1500 psi, the soil should not give and reduce the pressure within the cylinder.
n When Chudoform sheeting is used, it shall extend to the top of the excavation and to within 2 ft. of the bottom of the excavation in Type A & B soils, and to the bottom of the trench in Type C soils.
n A complete shore unit consists of one or more cylinders, two rails, fittings, and hoses.
n Efficiency offers training for the use and applications of Hydraulic Shores.
Using Vertical Shoring Systemsn Trenches exceeding 8 ft. in
length will have a minimum of three shores spaced according to the tables. In trenches shorter than 8 ft. in length, two sets of vertical shores are required at the horizontal spacing indicated in the tables.
n For trenches 5 - 6 ft. in depth, vertical shoring shall consist of a minimum of one cylinder and a set of rails. If using a single cylinder it shall be positioned no more than four feet from the bottom of the trench and shall be within 1 - 2 ft. from the top of the trench.
n For trenches 6 - 10 ft. in depth, vertical shoring shall consist of a minimum of two hydraulic cylinders and rail sets in each vertical plane.
n Thrust pressure arches from each shore fan out through trench walls and interlock with the arches of adjacent shores. Each cylinder provides a total working range thrust of 2,360 - 4,710 psi against the trench wall.
Pressure Arches
Cylinders must be used with rails or walers.
www.efficiencyproduction.com • 800-552-8800 • 517-676-8800 • Fax 517.676.0373
Trench Shields, Slide Rail, and Support Equipment
Other ProductsOther ProductsOther Products
Steel Trench Shields Manhole Shields Slide Rail Systems
Corru-Lite™ Aluminum Trench Shields Stone Mizer®
Porta-Tank™ Pipe Puller
Call, or visit our website for a Trench Shielding Product Guide, or literature on any support equipment.
Road Plate
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CNC/Fabrication: Efficiency Production features the latest in CNC technology and equipment. Efficiency’s CNC abilities include designing and developing prototype models, special machinery bases, fully integrated CAD-designed fabrication components, and the ability to fabricate any competitor’s parts and components.
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AMERICA’S TRENCH BOX BUILDER™
www.efficiencyproduction.com • 800-552-8800 • 517-676-8800 • Fax 517.676.0373America’s Trench Box Builder™America’s Trench Box Builder™
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