







The 30 ton mono strand jack is mainly used in the construction of bridges and other projects in conjunction with products such as prestressed anchors and tensioning equipment. The 30 ton mono strand jack is a tensioning jack specially used for tensioning force measurement or releasing a single steel strand. The front end is equipped with a jacking device for anchoring and anchoring, and it can be self-anchored. It is widely used in pretensioning method, Post-tensioned prestressed concrete structures and bridge construction.

Product Parameter
Type | Nominal tension force KN | Nominal oil pressure MPg | Tension piston area m2 | Return piston area m2 | Stroke for tension mm | Overall size mm | Coss-core aperture Φ mm | Mass KG | Supporing oil pump |
YDC250QX-200 | 250 | 52 | 4.77×10-3 | 1.335×10-3 | 200 | Φ114×474 | 19 | 21.5 | ZB4-500 |
30 ton mono strand details and features
High hardness, high strength
All important parts under stress are made of high-quality alloy structures or tools to improve strength and hardness.
Sealed and dustproof
The tension cylinder and the return cylinder are sealed with sealing rings, the small cylinder and the tool ring are connected by keys to prevent rotation.
Small size and light weight
Equipped with a handle for easy on-site handling and a compact, flat design for use where other jacks are not suitable.
Large tension and high efficiency
High oil pressure, large tension force and stable operation, it can be used for pre-tensioning and post-tensioning prestressed steel strand tensioning.
Product display

Application
30 ton mono strand jack is a kind of front card jack, which is used for tensioning a single prestressed steel strand and preloading and releasing a single steel strand. This mono strand jack can stretch a single prestressed steel strand with φ12.7, φ15.20 and φ15.7 respectively by replacing different tool clips. 30 ton mono strand jack is a prestressed through-the-center front card jack, which is used for tensioning a single prestressed steel strand. Equipped with a special top pressure device and a 4-500 type S three-oil circuit electric oil pump, it can top pressure 14KN, 15mm stroke.
The mono strand jack can be used for road subgrade tensioning.
The mono strand jack can also be used in suspension bridge boom replacement projects.
In addition, the mono strand jack is also used in the tensioning construction of steel arch bridge suspenders.
Company Information
Our company 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. We have a skillful team specialized in the design, production, repairing and engineering and are well equipped with a number of machines. Furthermore, we boast an advanced production environment and exquisite craftsmanship. Our annual anchorage production capacity is 9 million pieces, prestressed tensioners 25 million pieces.
With the guidance of experienced building experts in prestressing force, we have more experience. Our Lingqiao prestressing anchorage system was developed by many famous research institutes including China Academy of Building Research. It is a major system in China now. We adhere to the tenet of "People-Oriented, Focus On Innovation, Base On Sincerity and Honesty, Have a Self-Established Brand". Meanwhile we persist in "Safety Goes First, Precaution Crucial, Comprehensive Handling". With the mature marketing, after-sale service and scientific research systems, our aim is to push forward the development of the presetressing force industry in China.
Certifications
