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By stressing prestressing strands or wires after multi strand post tension jack ensures that equal tension is applied. It allows measurements of both the prestressing force and elongation.
For the whole prestressing pocess, post tension stressing jack is matched with tool anchorage and wedge to stretch PC strand. It is powered by pump, calibrated gauge readings indicate the tension force applied to tendon. based on different model, tension force is from 70tons to 650tons. The jacks is linked with two ends of tendons and ensure two sides are fully stretched. if only one side is stretched, the other side should be fixed, we call it dead end such as swage end which is formed by swaging socket and spring.
Post tension tendon loss includes: duct friction loss, anchor loss, elastic compression loss, steel stress relaxation loss, and concrete contraction loss. The first three occurred in the tension stage, called instanta loss, and the latter two were long -term losses. In addition, anchor mouth friction loss should be included.
Cylinder
1. 40Cr forging material is adopted, resistant to ultra-high pressure and not easy to deformation.
2. Oil cylinder inner hole is olled to improve surface strength and hardness, improve surface wear resistance and extend service life.
3. The oil cyinder and end cover are connected by internal thread, with good overall force and high safety factor.
Plunger
The piston is processed by integral forging parts, with superior mechanical performance and durable service.
Steering method
The guide part adopts surfacing copper technology, the guide length of piston ring is longer, the guide performance is good, the ability of resisting partial load is strong, it has the advantages of wearresisting, pressure-resisting, corrosion-resisting, etc, and it is easy to disassemble and assemble, and spare parts can bereplaced without special tools.
Sealability
in the dynamic seal using green ring instead of 0-ing, green ring use pressure up to 80Mpa, the temperature range of -60-+200C,using green ring seal effect is better, more reliable.
Type
Nominal
tension force
KN
Nominal oil pressure
Bar
Tension piston area
M²
Return piston area
M²
Return oil pressure
Bar
Coss-core aperture
CM
Stroke for tension
CM
Overall size ΦA×L
CM
Weight
KG
LA70B
705
510
1.382×10-²
0.636×10-²
<250
Φ6
20
Φ18.8×33.0
40
LA100B
973
510
1.908×10-²
0.534×10-²
<250
Φ7.8
20
Φ21.6×33.7
60
LA150B
510
2.927×10-²
1.609×10-²
<250
Φ10.3
20
Φ28.3×37.6
117
LA200B
530
3.769×10-²
2.168×10-²
<250
Φ12
20
Φ31.0×37.8
130
LA250B
540
4.594×10-²
2.803×10-²
<250
Φ14
20
Φ34.5×38.2
188
LA300B
510
5.904×10-²
3.518×10-²
<250
Φ14.5
For more wholesale post tension wedgesinformation, please contact us. We will provide professional answers.
20
Φ38.5×38.2
230
LA350B
520
6.786×10-²
3.463×10-²
<250
Φ16.5
20
Φ41.0×38.9
280
LA400B
520
7.611×10-²
4.595×10-²
<250
Φ17.5
20
Φ44.0×38.9
315
LA450B
510
8.804×10-²
5.788×10-²
<250
Φ17.5
20
Φ46.5×41.3
364
LA500B
500
10.05×10-²
4,775×10-²
<250
Φ19.6
20
Φ49.5×41.8
445
LA600B
500
12.1×10-²
6.83×10-²
<250
Φ19.6
20
Φ53.0×44.3
550
LA650B
500
13.13×10-²
6.291×10-²
<250
Φ24
20
Φ57.0×44.5
610
we are glad to get advice from you for the following items.
· Anchor manufacturing
· Strand pushing
· Wedge seating
· Anchor testing
· Stressing force measurement
· Calibration
· Selection of the appropriate stressing equipment
· Stressing of stay cables using multi-stressing or single-wire stressing jacks
The first and second pictures are 500tons stressing jack, stroke is 200mm, with one 180mm extension cylinder, hanging hook, one tooling anchor and limiting plate etc. this jack is for a Singapore client, all the jack's design and dimension is based on client's drawing and requirments. This client was very satisfied with everything, and placed order again.
The third picture is 250tons mono strand jack with 500mm stroke, it was for a Guam client. The fourth picture is a open and close anchor, also for this Guam client. We have built long term relationship with this client.
Below drawing and dimension for each model is jack installation requirement.
LA70B
*120 590LA100B
*150 570LA150B
*190 570LA200B
*210 590LA250B
*220 590LA300B
*250 620LA350B
*255 620LA400B
*265 620LA500B
*295 620
*How to choose lubricant?
If temperature is below zero, please use32# hydraulic oil
If temperature is above zero, please use 46# hydraulic oil. AW 46 Hydraulic Fluid or Mobil DTE 25 Ultra ( Equivalent ISO VG 46, Anti-wear hydraulic oil) is equal to 46# hydraulic oil
*Can you provide factory tour?
If you don't have time to visit our factory, and you can video call to check workshop and production details.
*how to confirm the right product before delivery?
Normally we provide update date sheet, drawing, test report, training VOD and other requested certificate
*how to make payment?
we discuss payment method with client before order. Normally, 30% is paid before production start, 70% is paid before shipment delivery(customer can arrange their freight agent to pick up goods at our factory). you can pay by wire transfer, paypal or other accepted method.
*What is your shipping way ?
Express (DHL,Fedex,TNT),By air ,Or Sea. We will choose one shipping way to suit customers request .
Should you be interested in Post Tension Stressing Jacks or any stressing jack equipment, please contact us directly.
:
Mobile /:-
Post Tension Anchor Barreland Wedges for PC Strand 12.7mm1. Descriptions1). Type: Single-hole, Multi-hole; Circular, Flat.2). Parts: Anchor Ring/Plate, Wedge, Base Plate etc.3). Have a high anchor efficiency and very good performance4). We can manufacture all kinds of anchorage and prestressed equipment according to your requirement and drawings.2. Applications: It has been widely adopted by modern construction, especially used in pre-tension or post-tension for concrete constructions as building materials, such as bridge construction, railway and highway construction, underground structures,buildings and channel construction, ect.3. Features:YJM anchorage system is consists of stressing-end anchorage, fixed-end anchorage, couple and corrugated pipe. It can be divided into YJM10, YJM11, YJM13, YJMM15, YJM18, YJM22 series of round anchors and BJM15, BJM13 series of flat anchors. Please see the follows:1). YJM15 applies to 15.2/15.24mm, 15.7mm pc strand.2). YJM13 applies to 12.7mm, 12.5mm & 12.9mm pc strand.3). YJM10 applies to 9.3mm, 9.53mm pc strand.4). YJM11 applies to 10.8mm pc strand.5). YJM18 applies to 17.8mm pc strand.6). YJM22 applies to 21.6/21.8mm pc strand.4. Our Advantages:We are PT Manufacturer from China, our full products range for post tensioning and pre-strssing construction:1). Materials: pc strand, YJM anchor system(monostrand anchor, multistrands anchor), ducts(metal ducts, HDPE plastic ducts)2). Equipment: Hydraulic Jack(QYC mono jack, YDC multi-strand tensioning jack), electric oil pump, YH30 embossing machie(onion jack), GYJ500 extrusion machine, ZG130 ducts making machine, grouting pump and mixer for post tensioning).3). Bridge Equipment: Bridge Crane, Bridge Girder Launching Machine, Bridge Girder Transporting Vehicle, etc.5. FAQ:1): Q: Do you supply OEM Service or Customized-made Anchorage System?A Yes, we do. Actually, we have cooperated with many famous PT Supplier in whole world.Just send us your drawings when need to be customized.2) Q: Do you provide free samples?A: Yes, sure, we provide free samles for your testing.3) Q: How is the delivery lead time:A: Goods in stock: within 3 days, Goods out of stock(7 days), Goods need to be customized(10-15 days).4) What is your Minimum Order?A: MOQ: 100 pieces.5) Q: Payment Terms?A TT, LC, Western Union, Paypal, etc.6) Q: How to transport the goods:A: by shipping, airflight, express.6. YJM13-QYM Stress End Anchor System Technical Data:7. YJM15-QYM Stress End Anchor System Technical Data:Let's have a quick communications for business by following:Mobile No.: +Jason Wang
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