Multi-strand Stressed Jack and Pump for Post Tensioning
Contact:
Summer
Mobile/Wechat/Whatsapp: +86 13571973823
Email: summer@ztmineequipment.com
The tensioning of the steel strand (or individual wires) is usually by means of hydraulic jacks. In pre-tensioning, single strand jacks may be used. In post-tensioning the strands are often grouped to form tendons. These may be stressed by large, multi-strand jacks. The load induced into the strand is determined from the pressure in the hydraulic oil supplied to the jack or from the extension of the strand.
Wedge grips are used to grip each strand during stressing and to hold the strand permanently in the tendon anchor after stressing. The jack is removed after stressing and anchoring. In post-tensioning the prestressing force is applied directly to the concrete. In the case of pre-tensioning the anchor holds the strands until after the concrete has gained sufficient strength; the strands are then released, transferring the prestressing force to the concrete.
FAQ
1. Q: Are you trading company or manufacturer?
A: We are original equipment manufacturer.
2. Q: How long is your delivery time?
A: It is according to the model and quantity.
Generally it is 3-5 days if the machines are in stock.
It will be 15-30 days if you want to customize the machines.
3. Q: Do you provide samples? Is it free or extra?
A: Yes, we could offer you the sample machine.
But it's not free. You need to pay for the sample and the cost of freight.
4. Q: What is your terms of payment?
A: We accept T/T, Western Union, Money Gram, Paypal, Alibaba Escrow etc.
Payment<=USD 5000, 100% in advance.
Payment>=USD 5000, 30% T/T in advance, balance before shipment
Contact:
Summer
Mobile/Wechat/Whatsapp: +86 13571973823
Email: summer@ztmineequipment.com
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