With expertise that extends to both pre- and post-tensioning products, Usha Martin’s prestressing operations cover a multitude of specialised industry applications. Used extensively by major construction companies in India, the post-tensioning products such as anchorage, sheathing, multi-pull and single-pull hydraulic jacks and pumps, grout pumps and agitators are manufactured at Usha Ismal Division at Ranchi. Pre-tensioning products include grips, wire jacks, hand pumps and power-operated pumps.
Products and Services
Some of the prestressing products and services offered by Usha Martin include
The anchorage is manufactured in compliance with BS 4447:1973 and FIP recommendations that find application in bridges, silos and commercial buildings. The Anchorage comprises of following:
1. One cast Iron tube unit, which guides the strands into the duct.
2. One forged steel bearing plate having taper holes for seating of wedges.
3. Necessary number of hardened wedges for locking of strands after stressing
While standard anchorage are for use as live end,the company also offers dead end anchorage and anchorage coupling.
We offer drossbatch type sheathing made with bright metals or galvanized cold rolled cold annealed steel strips in compliance with IRC 18-2000. The strip thickness varies from 0.24-0.50 mm.
The product is offered in two categories
1. Flat sheathing
2. Round Sheathing
- Multipull Jacks
We integrate advanced design with quality to manufacture multipull hydraulic jack.These jacks are easy to operate and develop required stress in the cable.The special feature of this cables is lock off , which effects proper seating of the wedges inside the taper holes of the bearing plates with predetermined force.
- Single pulling jacks
J20 jacks are manufactured with 220KN and 300KN capacity and 200mm or 400mm stroke. These are sutable for 12.7mm,15.2mm , and 15,7mm strands. These jacks generally find their application in commercial buildings like malls, office space etc.
- Hydraulic power operated pumps
For use with multipull hydraulic jacks,we manufacture various models of hydraulic power operated pumps based on usage parameters such as power, voltage,plunger pump mechanism, operating pressure and delivery rate.
- Grout pumps and agitator
We manufacture positive displacement screw type rotary grout pumps and Power operated grout agitators. The grout pump manufactured are based on usage parameters such as power, voltage, delivery rate and the agitators are manufactured in various sizes based on their compatibility with the grout pumps.
- Customer Service
We offer wide range of services for installation of post tensioned concrete slabs , prestressing equipment ,and services specific to prestressing requirement for customers.
Quality & Testing
The company has in-house facilities for load transfer & load efficiency tests and is certified as per ISO 9000 Quality Management System
The company has a strong list of customers such as Hyderabad Metro Railway project-World’s largest project under public-private partnership, BMRC etc.