Double Acting Multi Strand Jacks - Long Profile

Get a Price/Quote

Double Acting Multi Strand Jacks - Long Profile Specification

Product Type
Double Acting Multi Strand Jacks - Long Profile

Material
High-strength alloy steel body

Lifting Capacity
Ranges from 100 Ton to 600 Ton (capacity depends on model)

Handles
Integral lifting handles provided

Application
Multi-strand post tensioning systems, pre-stressing concrete, bridge construction, heavy lifting and tensioning works

Height
Varies by model; see additional specifications for stroke lengths

Weight
Varies by model; ranges from approximately 25 kg to 244 kg

Color
Metallic silver (standard finish)

Strands Accommodated
From 4 to 37 strands depending on model (e.g., MSJ - 4/12LP to MSJ - 19/37LP)

Approximate Dimensions (LxW)
Models range from 495 x 125 mm up to 830 x 340 mm

Cylinder Bore Diameter
Ranges from 96 mm to 222 mm depending on capacity

Stroke
Ranges from 150 mm to 300 mm depending on model

Applicable Strand Size
12.7 mm to 15.7 mm (standard, as per IS:14268/JS 684 Grade 1860)

Number of Oil Ports
2 (for double acting operation)

Available Capacities
100T, 170T, 200T, 300T, 400T, 500T, 600T

Piston Rod Diameter
Ranges from 62 mm to 164 mm depending on model

Max. Working Pressure
630 Bar

Return/Release Mechanism
Double acting hydraulic (hydraulic return)

Series
MSJ-LP Series

About Double Acting Multi Strand Jacks - Long Profile

Being one of the principal organizations, we are affianced in offering a comprehensive assortment of Double Acting Multi Strand Jacks - Long Profile. These are threaded or welded together for easy and quick interchangeable head inserts and tapped holes at the base for easy installation. The offered jacks are manufactured using supreme quality materials in conformity with set industry norms. Moreover, the wide gamut of Strand Jacks are available in specify technical specifications provides by our customers at marginal prices.

Customers can avail double acting multi strand jacks- long profile from us in capacities ranging from 200-350 tons and stroke length ranging from 100-300mm. This tool can work at maximum working pressure of 630 bar. The MSJ-LP series jack features wedgelock cylinder, mechanical stroke limiter and retract side relief valve.

Engineered for Demanding Projects

Our MSJ-LP Series Double Acting Multi Strand Jacks are tailored for high-stress environments such as bridge construction and large-scale pre-stressing works. Built from high-strength alloy steel, they offer remarkable durability, safety, and performance for professionals demanding reliable and efficient tensioning equipment.

Flexible Capacity and Strand Accommodation

The product line covers a wide range of capacities, from 100T up to 600T, and accommodates 4 to 37 strands depending on the model. This flexibility allows engineers and contractors to select the ideal jack configuration for each project's requirements, supporting standard strand sizes (12.7 mm-15.7 mm) and ensuring versatile use on various job sites.

Ease of Use and Safe Handling

Each jack incorporates integral lifting handles and a metallic silver finish for easy transportation and identification on site. The double acting hydraulic system, featuring two oil ports for operation and return, makes operation smoother and safer, minimizing downtime and enhancing efficiency during critical construction phases.

FAQ's of Double Acting Multi Strand Jacks - Long Profile:

Q: How are Double Acting Multi Strand Jacks typically used in construction projects?

A: These jacks are primarily employed for multi-strand post tensioning systems in concrete structures, such as bridge decks and high-rise buildings. Their high capacity and ability to accommodate multiple strands make them ideal for heavy lifting, tensioning, and pre-stressing concrete elements.

Q: What is the benefit of the double acting (hydraulic return) mechanism in the MSJ-LP Series?

A: The double acting mechanism enables both the extension and retraction of the piston to be controlled hydraulically, ensuring faster, safer, and more controlled operations. Hydraulic return means the jack resets quickly, enhancing productivity and reducing manual interventions on site.

Q: When should I choose a jack model with higher capacity or strand accommodation?

A: Selection should be based on the project's tensioning requirements, including the total load to be applied and the number and size of strands used. For heavier structures or projects requiring greater force, higher capacity models (up to 600T and 37 strands) provide optimal support and safety margins.

Q: Where are these jacks most commonly implemented?

A: They are widely used in infrastructure applications across India and globally, including bridge construction, heavy civil engineering projects, and structures where concrete must be post-tensioned for enhanced strength and durability.

Q: What is the process for connecting the jack to a multi-strand system?

A: Each jack is designed with integral lifting handles for easy positioning. Strands (12.7 mm to 15.7 mm) are threaded through the jack according to the model's capacity, and hydraulic connections are made to the two oil ports for double acting operation, enabling controlled tensioning.

Q: Can these jacks handle different strand sizes and grades?

A: Yes, all models support strand sizes from 12.7 mm to 15.7 mm, as per IS:14268/JS 684 Grade 1860, making them suitable for a wide variety of pre-stressing tendons used in the field.

Tell us about your requirement