Prestressed Tension Equipment Hollow Hydraulic Jacks

Prestressed Tension Equipment Hollow Hydraulic Jacks1. Usage: It is mached with prestressed anchorage widely used in the construction of bridge and buildings, railway
and subway, water conservancy and hydropower engineering.2. It is suitable for the tension of group anchors with 1860-2000 sizes, Φ 15.24, Φ 12.7 strands.3. In some certain circumstance it can be used in the working of pushig, jacking and transforming and so on.4. Easy to use with reanosable price.5. Jack is used for prestressing works
Features:
1. Using the 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 that the life of seals and sealing performance can be improved about 20%.3. In the tensioning the operating process, jacks is easily damaged under overpressure because of the jack-based
pullback clinder, 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 that enormously reduce the possibility of mechanical damage due to improper operation.In the word, the YDC series feed-through jacks' performance is improved, and widely used in pre-stressing and
poststressing construction.Notice: According to users' requirement, YDC through jack can be configuredPicture of post tension jack
Picture of pre-tension(pre-stress) jack
Technology data of multi-strands tension hydraulic jack:Item/
DimensionsNominal
TensionRated Oil
PressurePulling
StrokeArea of
Tensioning
PistonCenter hole
DiameterMinimum
Working
SpaceThe Reserved
Length
of StrandOverdimensionKNMpammmm²mmL(mm)E(mm)out
diameter
(mm)length
(mm)YDC60605415011193087459.538770287YDC130130501602592308387739590295YDC2702706118544183088889415105315YDC650650501501301840860145380170288YDC110011005120019792801210184680217330YDC150015005020030257901210230680270330YDC2000200051200398201101296272723320360YDC2500250052200483811271306298728350360YDC3000300052200577271451322336736375380YDC3500350048200734351621322336745415395YDC4000400051200791681621324374745435395YDC4600460051200910281801350420750470410YDC5000500049200969972001340434745495410YDC55005500502001105061981350520800526498YDC6500650049200675442121350550850568538YDC9000900051200786182751400620900680603YDC1200012000512002313002751400620900780603