lightweight carbon fiber hydraulic jacks - dsi usa · pdf fileimpact protection by aramide...

Lightweight Carbon Fiber Hydraulic Jacks

150 Years of Service

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Main Advantages

■ Easy to operate and universally applicable

■ Considerable reduction of physical strain for employees

■ Hydraulic return for quick retraction of the cylinder

■ Eliminates need for lifting equipment.

■ Compact size for confined spaces. ■ Integrated overflow and pressure control valve to avoid damage in case of overpressure

■ High-quality wiper rings at the rod protects from dirt

■ Impact protection by aramide cover

■ Corrosion-resistance by high-quality material and high-tech coating

■ Up to 10,000 [psi] operating pressure ■ Available in standard and custom sizes


Introduction

Carbon Fiber Reinforced Hollow-Piston (CFRP) Cylinders are light-weight and offer an optimum alternative to conventional hollow-piston cylinders made of aluminum and steel with weight savings of 60% and more.

Portable Hollow-Piston CFRP Cylinders guarantee an easy, quick and efficient positioning and handling. In most cases, lifting tools are unnecessary for transportation and assembly.

CFRP Hollow-Piston Cylinders are mainly used in bridge construction, reinforced concrete construction and foundation engineering. By default, cylinders are available with capacities ranging from 44 to 441 US Tons.

Particularly in geotechnical applications, Portable CFRP Cylinders offer a very significant advantage. The equipment mainly used for a 4 strand anchor weighs only 56 [lbs].

441 ton CFRP cylinders are used in bridge construction for tensioning external post-tensioning tendons in hollow box girders. Tensioning can be readily undertaken by two workers without the need for lifting tools.

Alternatively to the Wedge Seating Plate shown in the photo to the left below, chairs for tensioning ground anchors, soil nails and micropiles can be attached to the CFRP Cylinders.

With minimum effort, CFRP Hollow-Piston Cylinders are used for the quick tensioning and testing of bar and strand anchors.

Centering Platefor Threadbar

Stressing Head Assenbly

Wedge Seating Plate

W

W

A

B

tW

C

D

L

Specifications

Jack Typ CFRP Jack Weight Piston Stroke Length Jack Base Width Total

Width A B C D

Model No.

[lbs]

[in]

L [in]

W[in]

tW[in]

[in]

[in]

[in]

[in]

110 US Tons L-HK-DZ-100-250-083-HP 56 9.84 17.01 7.48 13.78 3.27 4.80 3.27 6.50

187 US Tons L-HK-DZ-170-250-110-HP 115 9.84 17.60 10.24 16.54 4.33 6.61 4.33 8.86

298 US Tons L-HK-DZ-270-250-130-HP 153 9.84 17.72 12.96 19.26 5.12 7.87 5.12 10.63

Jack Typ CFRP Jack Piston Area

Max. Jacking Force at

8,500 [psi]

Max. Jacking Force at

10,000 [psi] 1)

Max. No. of 270 [ksi]

0.6" Strands 2)

Max. Size Grade 150

THREADBAR®

Model No. [in2] [kips] [kips]

110 US Tons L-HK-DZ-100-250-083-HP 21.917 189.2 222.6 4 1 ¼"

187 US Tons L-HK-DZ-170-250-110-HP 39.448 340.3 400.4 7 1 ¾"

298 US Tons L-HK-DZ-270-250-130-HP 61.458 530.2 623.8 9 1 ¾" 1) Special hydraulic pump, gauges and hose are required for 10,000 [psi] working pressure. 2) Based on 8,500 [psi] working pressure. Also available in many other sizes/capacities to suit your specific needs.

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Technical Data

Side of Cylinder Rear of Cylinder

Stressing Head End

Front of Cylinder

Wedge Seating Plate End

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General Details

Actual maximum working pressure is 10,000 psi (requires hydraulic pump, gauge and hoses which are rated for these pressures).

Rear of Cylinder (Stressing Head or Stressing Nut)

Hydraulic oil pressure port

Piston rod end face (hardened steel pressure plate)

Hydraulic oil return port

Pressure relief valve

Front of Cylinder (Wedge Seating Plate or Chair)

Mounting points for accessories

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Tensioning Accessories

For the daily use of our jacks and equipment, we offer accessories that are robust, easy to use and perfectly suitable for on-site use. They are adapted to individual applications and the equipment used, thus facilitating work and ensuring a fast construction progress.

For gripping the strands easily and safely, stressing heads with built-in clamping devices are available for mounting directly in the rear of the jack.

Additionally, when power-seating of the permanent anchor wedges is preferred, the jack may be equipped with a wedge seating device in the front of the jack.

Special stressing chairs or wedge seating plates ensure easy positioning of the jacks as well as positive control of wedge seating and allows for tolerances during tensioning and lock-off of the anchors.

Stressing Heads and Wedge Seating Plates

For tensioning and testing strand anchors.

Centering Plates

For tensioning and testing THREADBAR® anchors.

Tensioning Chairs

For tensioning and testing THREADBAR® anchors.

Optional Hydraulic Wedge Setting Device

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DYWIDAG-SystemsInternational USA Inc.

320 Marmon DriveBolingbrook, IL 60440Phone (630) 739-1100

Toughkenamon, PAPhone (610) 268-2221

McLean, VAPhone (302) 293-2377

Pompano Beach, FLPhone (954) 532-1326

Mansfield, TXPhone (817) 473-6161

Long Beach, CAPhone (562) 531-6161

Tucker, GAPhone (770) 491-3790

Kent, WAPhone (253) 859-9995

E-Mail [email protected]

DYWIDAG-SystemsInternational Canada Ltd.

Eastern Division37 Cardico DriveGormley, ON L0H1G0Phone (905) 888-8988

St. Bruno, QCPhone (450) 653-0935


Western Division19433 96th Av. Suite 103Surrey, BC V4N 4C4Phone (604) 888-8818

Calgary, ABPhone (403) 291-4414


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www.dsiamerica.comwww.dsicanada.ca

Please note: This brochure serves basic information purposes only. Technical data and information provided herein shall be considered non-binding and may be subject to change without notice. We do not assume any liability for losses or damages attributed to the use of this technical data and any improper use of our products. Should you require further information on particular products, please do not hesitate to contact us.

lightweight carbon fiber hydraulic jacks - dsi usa · pdf fileimpact protection by aramide...

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