We have done retubing of heat-exchangers for many clients. Retubing is Time-saving as well as is cheaper by 50% compared to new replacements. Over last 20 years we have done retubing of more than 250 heat-exchangers many of these heat-exchangers had more than 1000 Tubes of 3/4" OD to 1 ¼” OD and length up to 8000 mm long. The weight of tube-bundle could be as much as 10 to 16 Tons