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Explore Our Hydraulic Stressing Jacks

Precision Hydraulic Stressing Solutions for Post-Tensioning & Civil Infrastructure

ORIENT Hydraulic Stressing Jacks are engineered for accurate and repeatable stressing of high-tensile bars and strands used in post-tensioning systems. Designed for bridge construction, metro projects, flyovers, high-rise buildings, precast elements, power projects and heavy civil infrastructure, the range includes Bar Stressing Jacks, Mono Strand Stressing Jacks and Multi Strand Post-Tensioning Jacks to suit a wide variety of stressing applications. Reliable spring return hydraulic jacks designed for lifting, pushing and supporting heavy loads across industrial applications. ORIENT offers three distinct series—RHD, HHYG and OHJ—each engineered to meet different operational requirements, from rugged heavy-duty lifting to compact general-purpose applications.

Choose the Series That Best Fits Your Application

OHBS Series

Bar Stressing Jacks

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 : 

  • Double Acting Operation
  • Hollow Ram Construction
  • Suitable for High-Tensile Bars
  • Precise Stressing Control
  • Through-Hole Design

Ideal For:

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

Mono Strand Stressing Jacks – Rear Gripping

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 : 

  • Rear Gripping Design
  • Faster Stressing Cycles
  • Automatic Load Transfer
  • Compact Front-End Design
  • Repeatable Stressing Accuracy

Ideal For:

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

Mono Strand Stressing Jacks – Front Gripping

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 : 

  • Double Acting Design
  • Front Gripping System
  • Hydraulic/Mechanical Wedge Lock
  • Repeatable Stressing Accuracy
  • Compact Construction

Ideal For:

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

Multi Strand Post-Tensioning Jacks

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 : 

  • Hydraulic Clamping System
  • Multi Strand Operation
  • Uniform Load Distribution
  • Heavy Duty Construction
  • High Accuracy & Repeatability

Ideal For:

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

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