equipment construction engineering site support services search site home products construction engineering site support services reference projects careers contact us welcome to dlt technology for modular construction we develop manufacture and operate the specialist technology for modular construction of bridges dams refineries power stations offshore structures buildings and manufacturing plants . we also offer construction engineering and site services to help our clients get the best value from the equipment we supply . our role on most projects is to develop solutions to construction problems fully engineer these solutions and then to work with our customers to carry out the operations on site . we are happy to offer any combination of erection engineering equipment supply rental and site supervision services to suit the needs of each project . our product range includes bridge construction equipment offshore construction equipment jacking tower systems strand jacks hydraulic gantries skidding systems and synchronised jacking and weighing systems . please click on the products link above for the full list of our products and also click on the reference projects link above to see many examples of our products and services in use . all our projects are covered by our company management systems which are accredited to iso 9001 2008 ohsas 18001 2007 and iso 14001 2004 . all these management systems have been written in house by our own staff to ensure total relevance to our business . read more dorman long and co. ltd was originally formed in 1875 and we have a page of useful links and resources for anyone interested in finding out more about the history of our famous company . read more company brochure company presentation company management latest news ... . sheikh jaber al ahmed al sabah causeway project doha link kuwait sept 2016 a bridge deck erection gantry designed by dlt has started work erecting precast bridge spans weighing up to 1700 tonnes and up to 60m long read more new champlain bridge project montreal canada . march 2016 dl mt1000 mega transporter starts operation in canada read more dl ts3600 jacking tower system completes first lift . february 2016 the first use of the new dl ts3600 jacking tower system was the erection of a 2520 tonne 120m long petrochemical vessel . read more dl ts3600 jacking tower system load tested in china . october 2015 the dl ts3600 jacking tower system has been successfully load tested to 125 % of rated capacity . read more first deck unit lifted queensferry crossing uk september 2015 the first deck unit on the queensferry crossing cable stay bridge has been lifted into place using dlt designed deck erection gantries . read more new champlain bridge project montreal canada . august 2015 dlt awarded contract for supply of a 1000 tonne capacity self propelled transporter and a synchronised jack up system for handling precast concrete bridge sections . read more margaret mcdermott bridge dallas . august 2015 american bridge lift a 95 m long 200 tonne arch centre section using dlt strand jacks and computer control system . video temburong bridge project brunei . july 2015 dlt awarded the contract to design and supply a bridge deck erection gantry to simultaneously erect two 50m long 870 tonne precast concrete deck girders read more 360 tonne generator installation india . june 2015 lift & shift india have installed their first generator using a new installation gantry designed and supplied by dlt read more riyadh metro project saudi arabia . may 2015 first bridge beam erected on site . read more sheikh jaber al ahmed al sabah causeway project doha link kuwait january 2015 dlt awarded the contract for detailed design of a bridge deck erection gantry launching girder self propelled transporter and straddle carriers for handling 1700 tonne x 60m span precast bridge beams . read more riyadh metro project award saudi arabia january 2015 dlt have been awarded the contract to design and supply a second set of dl se500 35 bridge deck erection gantry launching gantry and dl tlc500 self propelled transporter plus 2 no 260 tonne straddle carriers for transport and erection of 500 tonne x 35m long precast concrete bridge beams on the riyadh metro project by client fast consortium . read more myq5000 tower system successfully load tested china december 2014 the myq5000 jacking tower system has been successfully load tested to 125 % capacity . read more 1200 tonne bridge lifts zambia may 2014 vanguard have successfully erected two 1200 tonne steel bridges in zambia using four dl s418 strand jacks supplied by dlt . congratulations to vanguard for a job well done read more 3600 te capacity weighing system delivered vietnam april 2014 an 8 jack 3600 te capacity weighing system was delivered commissioned and used for the first time by client ptsc read more riyadh metro project award saudi arabia march 2014 dlt have been awarded the contract to design and supply a dl se500 35 bridge deck erection gantry launching gantry and a dl tlc500 self propelled transporter for transport and erection of 500 tonne x 35m long precast concrete bridge beams on the riyadh metro project by client fast consortium . read more myq4000 tower system award china march 2014 dlt have been awarded the contract to design a 4000 te lifting capacity jacking tower system to sinopec no 4 construction company in china dl ts3600 tower system award china sept 2013 dlt have been awarded the contract to design and supply a 7200 te lifting capacity jacking tower system to china read more myq5000 tower system award china june 2013 dlt have been awarded the contract to design and supply a 5000 te lifting capacity jacking tower system to china read more double topside float over india jan 2013 dlt supplied float over jacking system installs 13 400 te & 7 000 te topsides read more 2 no dl gp1000 skidding units delivered to nippon steel mar 2013 dlt supplied 2 no 1000 push pull skidding units to nippon steel for load out and installation of offshore jackets read more stadium cable net roof erected brazil dec 2012 the brasilia stadium cable net roof is erected using a dlt supplied 48 point computer controlled strand jack system read more calvary convention centre malaysia sept 2012 a 16 point computer controlled jacking system is installed to open and close two large roof panels read more bridge deck erection gantries made to order to suit each bridge straddle carriers 100 mt to 3000 mt self propelled transporters 100 mt to 3000 mt per unit jacking tower systems 500 mt to 5000 mt per system strand jack systems 15 mt to 1700 mt per jack skidding systems up to 2000 mt per point pinned climbing & skidding jacks 100 mt to 1000 mt per jack synchronous jacking and weighing 100 mt to 3000 mt per jack heavy lift & skid control systems computer and pendant control hydraulic power packs up to 1000 kw per power pack hydraulic gantries 200 mt to 1200 mt per system chain jacks 100 mt to 600 mt per jack subsea hydraulic release shackles 150 mt to 2000 mt per shackle modular bridges 8m to 200m main span hydraulic and electric winches up to 300 mt line pull hydraulic sling length adjusters made to order to any capacity viscous dampers lock up devices made to order to any capacity construction engineering services we offer a range of construction engineering consultancy services for the design and construction of many types of structure including bridges buildings heavy process plant petrochemical vessels and offshore structures . we have particular expertise in the erection of long span suspension and cable stayed bridges and in the engineering of specialist modular construction operations such as heavy lifting lowering and horizontal skidding operations . our engineers draw on first hand experience of site operations to provide practical schemes supported by clear and concise documentation . we can develop schemes from initial concept through to detailed design including stage by stage analysis of the permanent works if required all consultancy services are provided under our iso 9001 2008 accredited quality management system and covered by professional indemnity insurance . our services include the design of the following heavy lifting operations skidding operations mechanised temporary works bridge deck erection gantries bridge deck launching and sliding power station heavy plant installation erection of large roof structures long span bridge erection engineering including cable stayed and suspension bridges modular steel bridges including cable stayed and suspension bridges we also offer 3rd party independent checking services for construction methods and temporary works designs for projects on a global basis . for example in the uk we have experience in certifying projects for clients network rail and the highways agency viaduct erection gantry korea . read more infinity footbridge uk read more generator installation gantry india read more carquinez suspension bridge usa read more wembley stadium roof uk read more boyne bridge ireland read more site support services site support for our equipment is provided by our site technicians who have many years of experience of carrying out heavy lifting operations and will usually be seconded into a client s team to assist with the first few operations until the client s own staff feel confident to operate the equipment themselves . as part of this service we provide a formal training and certification programme to approve client s staff as competent to operate and maintain the equipment . our site technicians become a valued member of the site team and are usually requested to return to assist with future operations . our site technicians are also available to carry out periodic maintenance and load testing of the equipment with manufacturer s certification of the work carried out . we maintain a stock of strand jacks for rental or quick delivery to enable us to respond rapidly to the needs of each project reference projects the following projects are examples of our involvement in the engineering equipment supply and operations on site . the highlighted projects demonstrate the full range of our work . lists of example projects for each sector can be viewed by clicking on the tabs on the left of the page . highlights bridge projects oil and gas power projects building projects highlighted projects temburong bridge project brunei in july 2015 dlt were awarded a contract by main contractor daelim swee to design and supply a 2 x 870 tonne capacity bridge deck erection gantry for the temburong bridge project . the gantry will be used to simultaneously erect two 50m long 870 tonne precast concrete bridge beams for the 13.65 km length of marine viaduct on the project . the gantry will be delivered in may 2016 and is expected to be in operation on the project for 2 years . read more sheikh jaber al ahmed al sabah causeway project doha link kuwait in 2015 we carried out the detailed design of a bridge deck erection gantry a transporter and a pair of straddle carriers for the handling of precast concrete bridge deck beams weighing up to 1700 tonnes and with spans varying from 30m to 60m . read more new champlain bridge canada in august 2015 dlt were awarded the contract to design and supply a compact 1000 tonne capacity self propelled transporter to handle large precast concrete sections of the bridge foundations and piers . read more generator installation gantry india in june 2015 lift and shift india installed their first generator using a 540 tonne capacity modular gantry designed and supplied by dlt . the gantry is modular to accommodate the geometry of each site and incorporates folding strand jacks to reduce the headroom requirement as the generator is moved into the turbine hall and under the overhead crane rail . the gantry is able to lift rotate and move the generator into final position and incorporates both transverse and longitudinal movement systems to allow the generator to be set