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Strand Jack Animation|Bridge Prestressed Machinery

equipment, high degree of automation, easy operation and flexible, with automatic operation, semi-automatic operation, single point adjustment, manual operation and other modes of operation. Display a liquid crystal display, touch screen display is very intuitive. And the control system with self-error correction protection procedures, even if the error does not cause a security incident.

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  • Product Details

Strand Jack Animation|Bridge prestressed machinery

Description of hydraulic strand jack system:

The strand jack lifting technique originates from the concrete post tensioning principle. A strand jack can be considered a linear winch. In a strand jack, a bundle of steel cables or strands are guided through a hydraulic cylinder; above and below the cylinder are anchor systems with wedges that grip the strand bundle. By stroking the cylinder in and out while the grips are engaged in the anchors, a lifting or lowering movement is achieved.

The motion of the cylinders is driven by hydraulic power packs. They can be electric or diesel powered. Our sophisticated SCC software program synchronizes the motion of the strand jacks and adjusts the motion to the loads per lifting point.

Strand jacks lifting are available with two types of strand: a standard strand of 15,7mm and compact strand of 18mm. The 15,7mm strand can work with a dynamic load of 110kN. The 18mm strand can work with a dynamic load of 155kN. The number and type of strands used in a jack determine the safe working load of a jack. For lifting applications strand jacks are calculated with a 2,5 safety factor against breaking load to working load.

Strand jack lifting system are available from 30 up to 1.000 tonne capacity. We also provide a full range of accessories like a strand guide, strand dispenser and recoiler. All systems are certified and tested under Lloyd’s witness. Each installation is delivered with an instruction and operation manual in English.

 

Parameters of strand jack enerpac:

model

Safe working load

Working pressure

MPA

Cylinder stroke

mm

Retraction height

mm

Jack weight

KG

Fixed anchor weight

KG

boost speed

m/h

Number of strands

Strand diametermm

ZT-TSD15

15

31.5

500

1846

148

3.2

0-25

1

18

ZT-TSD45

45

31.5

500

1726

600

28

0-25

3

18

ZT-TSD60

60

31.5

500

1726

630

32

0-25

4

18

ZT-TSD100

100

31.5

500

1790

930

46

70-25

7

18

ZT-TSD180

180

31.5

500

1886

1560

90

0-25

12

18

ZT-TSD280

280

31.5

500

1938

2330

130

0-25

19

18

ZT-TSD300

300

31.5

500

1940

2460

140

0-25

20

18

ZT-TSD400

400

31.5

500

2100

3396

220

0-25

27

18

ZT-TSD580

580

31.5

500

2220

4980

260

0-25

38

18

ZT-TSD680

680

31.5

500

2180

5410

320

0-25

45

18

ZT-TSD800

800

31.5

500

2200

6880

360

0-25

54

18

ZT-TSD1000

1000

31.5

500

2286

8520

560

0-25

66

18

 

Application of strand jack animation:

Strand jack system, anchor system application

Strand Jack Anchor System

 

Welcome to contact us: zhongtuoks@foxmail.com,

jessie@ztmineequipment.com

 


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