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Pre-Stressed Hydraulic Mono Strand Nose Jack

Product Parameter Instructions 1. Preparation (1) Check whether the operating condition of the hydraulic oil pump is normal and whether the hydraulic oil circuit installed with the jack is correct. (2) Check whether the piston of the pusher expands normally and vents smoothly. 2. Installation of...
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Description


Product Parameter

NO.

Product number

DY30-25B

1

Nominal top pressure

30KN

2

Nominal oil pressure

34Mpa

3

Top pressure piston area

0.833×10-3m2

4

Tension stroke

25mm

6

Overall dimensions

Ø62×160mm

7

Through hole diameter

Ø20

8

Weight

2.8kg


Instructions

1. Preparation

(1) Check whether the operating condition of the hydraulic oil pump is normal and whether the hydraulic oil circuit installed with the jack is correct.

(2) Check whether the piston of the pusher expands normally and vents smoothly.


2. Installation of the top press

(1) Connect the top pressure device to the hydraulic oil pump, and the joints are connected with external leakage.

(2) Lift the jack and use the plum blossom head end to penetrate along the prestressed ribs to the working anchor plate, and then install the YDCQ250 single-hole tension jack behind the sealing plate for tensioning.


3. Tensioning operation process

At the same time, the throttle valve of the oil pump is constantly adjusted to control the tensioning speed and stabilize the oil pressure. When the required pre-stress value is reached, the nozzle is supplied to the oil inlet of the ejector, the top of the pressing piston is pressed against the clip, and when the design top pressure is reached, the oil cavity is unloaded by tensioning, and oil is supplied to the return oil cavity. The piston returns. If the anchor is fixed, the tension is completed, and the pressing piston is reset by the spring after the ejector is unloaded.


Company Information



FAQ

1. Q: Are you a factory or trading company?

A: Liuzhou Lingqiao Prestressed Machinery Co., Ltd. is an integrated company of industry and trade. We have factories.


2. Q: What's your supply capacity?

A: Generally, our factory's capacity is 10000 sets per month. But for special large quantity order, we can produce more than it. Don't worry about this.


3. Q: How can we trust your quality?

A: There are many ways to check quality. Such as, send sample, visit factory, etc. Our advice is that visit factory is the best way to check quality.


4. Q: What are your payment terms?

A: We accept both T/T payment . For the T/T payment, we accept 30% prepayment in advance and the balance payable against copy of B/L.


5. Q: If accept OEM service to made product as per customer offering drawing?

A: Yes, we can offer OEM service. We also offer customers new product design, non-standard design and prestressing construction plan.