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YDC Tension Hollow Hydraulic Jack

Model:
YDC650
Nominal Tension:
650KN
Rated Oil Pressure:
50Mpa
Pulling Stroke:
150mm
Area of Tensioning Piston:
13018mm²
Center hole Diameter:
40mm
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Description
Application
Features
Technical data
■ Description
1. YDC Tension Hollow Hydraulic Jack is suitable for the tension of group anchors with 1860-2000 sizes, Φ15.24, Φ12.7 strands.
2. In some certain circumstance it can be used in the working of pushing, jacking and transforming and so on.
3. Stressing jack is easy to operate and used widely. 
■ Application
YDC prestressing hydraulic jack is matched with prestressed anchorage widely used in the construction of bridge and buildings, railway and subway, water conservancy and hydropower engineering.
■ Features
YDC Series of Tension Hollow Hydraulic Jacks are the new designed products in our company, are the upgrades of the primary jacks.
1. Using new seals, to synchronous strengthen the seal-ability under great pressure.
2. Using special alloy steel with heat treatment process, reducing the cylinder's expansion ratio in the tensioning process. So the life of seals and sealing performance can be improved about 20%.
3. In the tensioning and operating process, jacks is easily damaged under overpressure because of the jack-based pullback cylinder, so we added the overpressure valve on the jacks to pressure production. Meanwhile we improved the original of commonly used structure by wire disc and flanged disc, to make the bearing capacity for oil pressure strengthen. So enormously reduce the possibility of mechanical damage due to improper operation. 
In one word, the YDC Tension Hollow Hydraulic Jack's performance is improved, and widely used in pre-stressing and post stressing construction. 
■ Technical data
Item/Dimensions Nominal Tension Rated Oil Pressure Pulling Stroke Area of Tensioning Piston Center hole Diameter Minimum Working Space The Reserved Length of Strand Over dimension
  KN Mpa mm mm² mm L(mm) E(mm) K(mm) out diameter(mm) length(mm)
YDC270 270 61 185 4418 30 888 89 415 105 315
YDC650 650 50 150 13018 40 860 145 380 170 288
YDC1100 1100 51 200 19792 80 1210 184 680 217 330
YDC1500 1500 50 200 30257 90 1210 230 680 270 330
YDC2000 2000 51 200 39820 110 1296 272 723 320 360
YDC2500 2500 52 200 48381 127 1306 298 728 350 360
YDC3000 3000 52 200 57727 145 1322 336 736 375 380
YDC3500 3500 48 200 73435 162 1322 336 745 415 395
YDC4000 4000 51 200 79168 162 1324 374 745 435 395
YDC4600 4600 51 200 91028 180 1350 420 750 470 410
YDC5000 5000 49 200 96997 200 1340 434 745 495 410
YDC5500 5500 50 200 110506 198 1350 520 800 526 498
YDC6500 6500 49 200 67544 212 1350 550 850 568 538
YDC9000 9000 51 200 78618 275 1400 620 900 680 603
YDC12000 12000 51 200 231300 275 1400 620 900 780 603
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