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Hydraulic lifting jacks are mainly used for prestressing construction works with prestressing force of tensioning method, such as bench tensioning tendons or box culverts, neck pushing...
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Description

Hydraulic lifting jacks are mainly used for prestressing construction works with prestressing force of tensioning method, such as bench tensioning tendons or box culverts, neck pushing, lifting and replacement of bridge supports.

Hydraulic lifting jack


Hydraulic Lifting Jack Series

200 Ton Hydraulic Lifting Jack

200 Ton Hydraulic Lifting Jack

The hydraulic lifting jack is light in weight and can be used with our ultra-high pressure electric hydraulic oil pump.

500 Ton Hydraulic Lifting Jack

500 Ton Hydraulic Lifting Jack

The hydraulic lifting jack can be used vertically or horizontally, has a compact structure and is easy to maintain.

650 Ton Hydraulic Lifting Jack

650 Ton Hydraulic Lifting Jack

The hydraulic lifting jack has a long stretching stroke and a large tonnage, and is suitable for horizontal operation.


Hydraulic Lifting Jack Features

1. The hydraulic lifting jack has complete models and specifications.

2. The hydraulic lifting jack is one of the more mature prestressing equipment.

3. The hydraulic lifting jack has the characteristics of large output force, light weight and long-distance operation.


Application

can be used for pushing construction of foundation construction platforms

The hydraulic lifting jack is equipped with our factory's ultra-high pressure electric hydraulic oil pump, which can be used for pushing construction of foundation construction platforms.

hydraulic lifting jack for bridge jacking construction

The hydraulic lifting jack can also be used for bridge jacking construction.

hydraulic lifting jack for pushing horizontal loads of bridges

This hydraulic lifting jack can be used for pushing horizontal loads of bridges.


Technical Parameter

Project

type

YDT100

YDT200

YDT250

YDT300

Nom.Lifting Force

1005KN

2033 KN

2503 KN

3018 KN

Nom.Pressure

50MPa

49 MPa

51 MPa

49 MPa

Lift or Push Piston Area

2.01×10-2 m2

4.15×10-2 m2

4.91×10-2 m2

6.16×10-2 m2

Return Piston Area

0.879×10-2 m2

1.61×10-2 m2

1.77×10-2 m2

2.36×10-2 m2

Stroke of Lifting

150/200 mm

200/700 mm

150/200 mm

150/200 mm

Size

Φ197X331 mm

Φ198X381 mm

Φ280X421 mm

Φ280X1022 mm

Φ300X359 mm

Φ300X409 mm

Φ350X364 mm

Φ350X414 mm


Project

type

YDT350

YDT400

YDT500

YDT650

Nom.Lifting Force

3503KN

4020 KN

5002 KN

6531 KN

Nom.Pressure

53MPa

50 MPa

52 MPa

52 MPa

Lift or Push Piston Area

6.61×10-2 m2

8.04×10-2 m2

9.62×10-2 m2

12.566×10-2 m2

Return Piston Area

2.81×10-2 m2

3.13×10-2 m2

3.01×10-2 m2

3.487×10-2 m2

Stroke of Lifting

150/200 mm

250/150 mm

200/150 mm

200/150 mm

Size

Φ360X363 mm

Φ360X455 mm

Φ385X361 mm

Φ385X411 mm

Φ440X472 mm

Φ440X422 mm

Φ300X409 mm

Φ300X359 mm


The hydraulic lifting jack of tensioning stroke is designed for 200mm, Can according to the customer's requirements to lengthen or shorten. In addition, the color can also be customized according to customer requirements.


Product structure of hydraulic lifting jack

Structure of lifting jack


Production Details

Prodection details


Precautions for using hydraulic lifting jack

1. To ensure the accuracy of the prestress value, the components of the hydraulic system (jacks, oil pumps, control valve lines, pressure gauges, etc.) of the tensioning equipment should be inspected and corrected periodically.

2. The hydraulic lifting jack uses 46 high-quality mineral oil, oil does not contain water, acids and other mixtures, does not decompose and do not thicken at ordinary temperatures. Hydraulic oil should be strictly kept clean, often fine filtration, regular replacement.

3. When prestressing, it should be noted that the tension stroke does not exceed the specified range.

4. When using this hydraulic lifting jack, it should be in accordance with the order form, not be reversed.

5. Hydraulic lifting jack in the beginning of use or during use, such as mixed gas, the hydraulic lifting jack should dry run for 2 minutes, in order to exclude the machine gas.

6. Before Connecting the pump,the oil pipe of hydraulic lifting jack should be checked for laceration, joints are solid, the specifications are appropriate to ensure that in the event of no accidents.

7. Stretched exposed work surface often wipe clean, the rest of the appearance to keep clean, handling should be careful to prevent falls hurt.

8. After work, hydraulic lifting jack cylinder should return in the end, place the room and add dust cover.

9. The hydraulic lifting jack should be based on the actual use of regular maintenance, cleaning the interior and other maintenance work. If found hydraulic lifting jack in the work of oil spills, faults, scratches and other phenomena of the work surface, should stop using and maintenance. Maintenance special wrench, the user if necessary, can be ordered to the factory or make a request when ordering.

10. When working, do not stand at both ends of the component and install protective devices in dangerous areas.

11. No parts of the hydraulic system shall be removed in the case of hydraulic pressure on the Jack.


Production process

Production process


More+

YDT hydraulic lifting jack is used with high pressure electric hydraulic oil pump of our company or other oil pumps with the same performance.

YDT jack


Prodect qualification

We boast an advanced production environment and exquisite craftsmanship. Our annual anchorage production capacity is 9 million pieces, prestressed tensioners 25 million pieces.

Prodect qualification


Company Information

Company Information


Liuzhou Lingqiao Prestressed Machinery Co., Ltd. is a high-tech enterprise which is concerned with the design, research, development and production of prestressing force products, established in 2011. Our company covers an area of 8,000 square meters including a 4,000sqm manufacturing workshop.

Furthermore, we have a skillful team specialized in the design, production, repairing and engineering and are well equipped with a number of machines.


OUR TEAM


Our enterprise has already passed ISO9001:2008 and CE certifications.

ISO9001:2008 and CE certifications


Packaging & Shipping

Packaging and Shipping