shops gradually increased their production from 2445 FWUs in 95–96 to 3602 FWUs in 99–2000. Manufacturing of 20 T crane 20 tonne Diesel Crane is a Rail Mounted, Diesel operated, BG (Broad Gauge) transportation crane. The crane is extensively used by Mechanical Department of Indian Railway in sick lines for maintenance of wagons/coaches and Transportation Department Indian Railway for handling of Goods. First four 20T Diesel Crane was manufactured in 1980–81 with mechanical control system. Later the control system was changed to Pneumatic as per RDSO Specification No. CR.D.122/90. Since 89–90 the shop has been manufacturing the 20 Tonne cranes as per this specification and has manufactured many such cranes. Manufacturing of Jamalpur jacks The Jamalpur jacks have been gaining in popularity chiefly due to low initial capital investment and minimum maintenance needs. It is worthwhile to mention that the performance and cost factor of these Jacks have posed a serious challenge to capital intensive Electrical Overhead Traveling Cranes. Besides Indian Railways, these prestigious Jamalpur Jacks have been operating successfully at various steel plants and allied industries. Special features The Jamalpur jack has a capacity to lift a load of and four such Jacks make one complete set with a total lifting capacity of 100 Tonnes. These Jacks can be operated simultaneously or individually. Construction features The jack is rigid and robust. The upright column is fabricated and welded to the cast steel Gear Box. The elevating screw is provided with buttress thread supported with single-acting thrust ball-bearing having a spherical seating at the top and self-aligning ball-bearing at the bottom. This imparts self-aligning properties to the screw under loaded condition. The elevating screw is under tension when loaded and hence there is no chance of distortion due to buckling. While lifting the load, the Jack rests firmly on its base. For movement from one place to another, the lifting carriage is to be lowered by pressing the yoke which lifts the base and the Jack rests on the three wheels with a ground clearance of 20 mm. Utility Jamalpur jacks have been designed for: Lifting Diesel/Electric Loco for inspection and maintenance. Wheeling and de-wheeling in Sheds/Workshops/C&W Depot. Various other lifting purposes with suitable adaptors. Tower cars Jamalpur workshop is also involved in manufacturing of different tower cars such as Mark-II, Mark-III, Mark-IV, DHTC/JMP References External links Official site of the Jamalpur Locomotive Works Report on Railway Budget 2004 The