Hydraulic Stressing Jacks for Prestressing

Hydraulic Stressing Jacks for Precision Tensioning

Precision Hydraulic Stressing Solutions for Post-Tensioning & Civil Infrastructure

ORMACK supplies ORIENT hydraulic stressing jacks engineered for accurate and repeatable tensioning of prestressing strands, cables and threaded bars. The range includes mono-strand, multi-strand and bar stressing jacks for bridge construction, metro projects, flyovers, high-rise buildings and precast concrete applications. Suitable hydraulic pumps, hoses, gauges and control systems can also be configured according to the required stressing operation.

Choose the Series That Best Fits Your Application

The OHBS Series consists of double acting hollow hydraulic stressing jacks designed for accurate stressing of high-tensile bars and tie rods. Their through-hole construction makes them ideal for bar post-tensioning systems, anchorage testing and heavy civil infrastructure.

Features :

Ideal For:

Bar Post-Tensioning, Tie Rod Stressing, Anchorage Testing, Bridge Construction, Heavy Civil Infrastructure

The OSRG Series features a rear-mounted wedge gripping mechanism that enables faster stressing cycles and automatic load transfer to the anchorage. Its compact front-end design makes it ideal for confined anchorage zones and repetitive stressing operations.

Features :

Ideal For:

Bridges, Metro Projects, Flyovers ,
Precast Elements , High-Rise Buildings

The OSFG Series combines double acting hydraulic operation with a front gripping wedge lock system for controlled and repeatable mono strand stressing. Designed for high-precision stressing applications requiring reliable gripping performance.

Features :

Ideal For:

Post-Tensioning, Bridge Construction, Metro Viaducts, LNG Tanks, Industrial Structures

The OMSJ Series is designed for simultaneous stressing of multiple strands using a hydraulic clamping system that delivers uniform load distribution and high stressing accuracy. Built for large infrastructure projects and heavy-duty post-tensioning.

Features :

Ideal For:

Bridge Decks, Long Span Structures, Metro Viaducts , Nuclear Projects , Power Projects , Heavy Civil Infrastructure

Standard Features Across The Range

Every ORIENT Hydraulic Stressing Jack is built with quality, safety and reliability in mind.

700 BAR WORKING PRESSURE

Designed for operation up to 700 Bar for safe and reliable performance.

AUTOMATIC SPRING RETURN

Spring return mechanism ensures faster retraction and improved efficiency.

HEAVY-DUTY STEEL CONSTRUCTION

High-strength steel construction for superior durability and long life.

PRECISION MACHINED PARTS

Precision-machined components for tight tolerances and consistent performance.

DURABLE SEALING SYSTEM

Advanced sealing system designed for leak-free operation and long service life.

COMPATIBLE WITH ORIENT HAND PUMPS & HYDRAULIC POWER PACKS

Fully compatible with ORIENT hand pumps and hydraulic power packs for a complete lifting solution.

Need Help Selecting the Right Hydraulic Stressing Jack?

Our team can help you select the most suitable ORIENT stressing system based on the tendon type, stressing force, anchorage system and project requirements.

About Ormack Hydraulics Pvt. Ltd.

Ormack Hydraulics Pvt. Ltd. is a Kolkata-based hydraulic engineering company supplying hydraulic power packs, cylinders, jacks, pumps, valves, tools, and high-pressure hydraulic systems for industrial applications.