Home \ International \ A 100th system for Robbins continuous conveyors
A 100th system for Robbins continuous conveyors
16/11/2017
Pubblicato da Redazione
On October 18, 2017, a Robbins 9.26 m (30.4 ft) diameter Crossover machine started up at the Akron Ohio Canal Interceptor Tunnel (OCIT) in Ohio, USA—but the startup wasn’t the only milestone. Running behind the
On October 18, 2017, a Robbins 9.26 m (30.4 ft) diameter Crossover machine started up at the Akron Ohio Canal Interceptor Tunnel (OCIT) in Ohio, USA—but the startup wasn’t the only milestone.
Running behind the Crossover TBM is the 100th Robbins Continuous Conveyor system supplied for muck removal. The side-mounted conveyor is a design standard, but the landmark is a significant one: “With this system we have provided more conveyors than any other TBM conveyor supplier”, said Dean Workman, Robbins Director of Conveyors, Cutters, & SBUs. Counting conveyor systems the company has on order but has not yet delivered, that number is now well above 100, Workman added.
The Akron OCIT conveyor system consists of the belt plus a main drive, splice stand, storage unit, and advancing tailpiece, operating through several curves requiring patented self-adjusting curve idlers that correct themselves based on varying belt tension and belt load. The system discharges onto a customer-supplied overland conveyor, which delivers the muck to a large storage yard near the portal site. The belt was designed to handle variable geology, from soft soils to partial face rock and finally full-face shale rock.
The 100th conveyor system has been refurbished and customized for the job in a process that Robbins has been perfecting for decades: “We design our conveyor systems to last for five to ten years, but many last for decades longer. We have systems utilizing components that have been in operation for 30 years. We haven’t reached a limit for many of our systems—for example we had a specialized conveyor system built more than a decade ago for the Parramatta Rail Link in Sydney, Australia. Those components were refurbished for a job in Atlanta, Georgia, and now they are being used at the Dig Indy tunnels in Indianapolis, Indiana. These are long and challenging tunnel drives and the components are up to it”. While the Akron OCIT conveyor is just beginning to haul muck, it is sure to be a benefit throughout the project’s varying ground conditions.
The conveyor in Akron is also part of a long history for Robbins conveyors—the first of which (not counted in the list of 100) was the first ever continuous conveyor system used behind a TBM. That prototype, developed by founder James S. Robbins in 1963, was successfully used behind the 11.2 m (36.7 ft) diameter Main Beam TBM at the Mangla Dam project in what was then known as West Pakistan. While conveyors would not be adopted as a standard method of muck removal for many years afterward, the project laid the groundwork for future success.
Today’s conveyor systems are capable of spanning dozens of kilometers and hauling 1,800 metric tons (2,000 US tons) an hour or more. It’s a legacy that Workman sees will continue to grow: “This is my 20th year with Robbins and I remember when we started our conveyor list. It is amazing to look at all of the jobs and things we’ve done. It’s amazing to see what these systems can do”.
![](/storage/aziende/14850068574916.jpg)
Ultime notizie di OnSite News
![Northbank Civil and Marine Purchases Tadano GTC-1600](/storage/2024/06/northbank-civil-and-marine-purchases-tadano-gtc-1600-6681402f9af30.jpg)
Lifting
22/07/2024
Northbank Civil and Marine Purchases Tadano GTC-1600
Northbank Civil and Marine, a heavy civil, marine, and indus...
![Rokbak partners with HMD to strengthen presence in West Africa](/storage/2024/07/rokbak-partners-with-hmd-to-strengthen-presence-in-west-africa-6688f6fb996fb.jpg)
Earthmoving Machinery
19/07/2024
Rokbak partners with HMD to strengthen presence in West Africa
Construction, quarrying and mining companies in West Africa...
![More reach, strength, and flexibility with new Grove rough-terrain cranes](/storage/2024/06/more-reach-strength-and-flexibility-with-new-grove-rough-terrain-cranes-66813f3d35272.jpg)
Lifting
19/07/2024
More reach, strength, and flexibility with new Grove rough-terrain cranes
Grove GRT765 and GRT780 were presented to customers at the M...
![Sinoboom TB58RJ Plus telescopic boom lift reaches Australia](/storage/2024/06/sinoboom-tb58rj-plus-telescopic-boom-lift-reaches-australia-66813c0be3a36.jpg)
Lifting
17/07/2024
Sinoboom TB58RJ Plus telescopic boom lift reaches Australia
The tallest model in the Sinoboom range of diesel-powered te...
![New Tadano AC 5.220-1 all terrain crane for Safar](/storage/2024/07/new-tadano-ac-5220-1-all-terrain-crane-for-safar-6682588d6e0ed.jpg)
Lifting
11/07/2024
New Tadano AC 5.220-1 all terrain crane for Safar
Safar ordered the AC 5.220-1 with a heavy-duty short jib and...
![Power China calls on Linnhoff asphalt mixing plant to improve rural Kenyan roads](/storage/2024/06/power-china-calls-on-linnhoff-asphalt-mixing-plant-to-improve-rural-kenyan-roads-668113d7939c4.jpg)
Earthmoving Machinery
09/07/2024
Power China calls on Linnhoff asphalt mixing plant to improve rural Kenyan roads
• The Linnhoff TSD1500’s high-mobility design features four...
Altri International
![Exclusive new Cat Track Wear Sensor](/storage/2024/07/exclusive-new-cat-track-wear-sensor-669f9e20ae70c.jpg)
International
26/07/2024
Exclusive new Cat Track Wear Sensor
Exclusive new Cat Track Wear Sensor provides remote, no-touc...
![Tamás és Zsolt Kft. took delivery of Liebherr LTM 1650-8.1](/storage/2024/07/tamas-es-zsolt-kft-took-delivery-of-liebherr-ltm-1650-81-6688f18bdc18d.jpg)
International
26/07/2024
Tamás és Zsolt Kft. took delivery of Liebherr LTM 1650-8.1
Tamás és Zsolt Kft. has added a Liebherr LTM 1650-8.1 to its...
![Cummins opens new powertrain test facility](/storage/2024/07/cummins-opens-new-powertrain-test-facility-669f9c6a4b904.jpg)
International
25/07/2024
Cummins opens new powertrain test facility
Cummins has opened a new powertrain test facility to support...
![Grove GMK6300L-1 proves perfect for compact jobsite in Rotterdam](/storage/2024/07/grove-gmk6300l-1-proves-perfect-for-compact-jobsite-in-rotterdam-6683b901e94d4.jpg)
International
25/07/2024
Grove GMK6300L-1 proves perfect for compact jobsite in Rotterdam
Kraanverhuur Boekestijn sent its Grove GMK6300L-1 for city c...
International
24/07/2024
MB Crusher breaks records and crushes challenges
MB Crusher is proud to support the construction of arenas, s...
![Hammer Lifte makes a full load of deliveries of Easy Lift spiders](/storage/2024/06/hammer-lifte-makes-a-full-load-of-deliveries-of-easy-lift-spiders-6681a8913661a.jpg)
International
24/07/2024
Hammer Lifte makes a full load of deliveries of Easy Lift spiders
Easy Lift's Danish dealer, Hammer Lifte, is always busier to...