Multiplex improves site safety with Roborigger

Roborigger, an innovative lifting device that allows riggers and dogmen to control loads wirelessly from a safe distance, is now being used by construction giant Multiplex.

The innovative automated product, developed by TENSA Equipment, is currently being used on Mutiplex’s latest project, the New Museum for Western Australia.

The Roborigger device, the first of its kind to be used on a commercial construction site, uses inertial forces to accurately rotate and orient crane loads, eliminating the need for workers to use taglines or to be in close proximity to the load during the lifting and lowering phases.

It features an in-built camera and load cell and incorporates a tracking system so every piece of data on a lift, including an image of the load, weight, location, time and date, and the unit states, can be viewed online in real-time.

Multiplex is the first commercial construction contractor to use this wireless load bearing technology.

Multiplex CEO John Flecker said it’s exciting to see the Roborigger technology in action.

“At Multiplex, we are always looking to find ways of making our sites and day-to-day operations safer, so it’s been a great opportunity to partner with TENSA in the research and development of Roborigger,” Flecker said.

“The overwhelming potential safety outcomes are what sparked our interest in Roborigger.

“The device perfectly aligns with our overarching strategy to be safer by design and focus on critical risks, removing the need for workers to be in the proximity of a high risk activity.”

TENSA has been developing the Roborigger technology since 2016 and Multiplex has supported this as an industry partner since 2017, coordinating Roborigger trials on commercial sites and providing user feedback.

“It’s exciting to see Roborigger successfully in action with the initial trial meeting all of our expectations. We’ve already expanded the trial to other sites in WA, with plans to roll out Roborigger on a number of Multiplex sites nationally,” Flecker added.

TENSA managing director Derick Markwell said TENSA initially developed the technology to address the challenging task of installing wind turbine blades when the wind was greater than the current limit of 12 knots.

“As we spoke to more people in the industry we realised that safety was the key concern,” Markwell said.

“We have also recently realised that data captured from load lifts is as valuable as the hardware itself, so we are now looking at leveraging this.”

Roborigger has been a completely local Western Australian innovation with the key research, development and trial phases all carried out locally and supported by local stakeholders such as Multiplex.

TENSA has also been collaborating closely with Curtin University researchers, who developed the bespoke algorithm for Roborigger control. The Curtin research was supported by Woodside who is also a development partner for Roborigger.

“Roborigger has really shown the strength of our local capability for innovation. We’re confident that further development of the Roborigger line of products will continue to build Western Australia’s capability in automation and robotics, helping to diversify the local economy,” said Markwell.

TENSA is currently taking Roborigger to the next commercialisation stage, having set up a production facility in Wangara where it is underway to build 39 Roborigger units this year.

Roborigger production facility set up in WA

We have continued on our commercialisation path for Roborigger by setting up a new production facility in Wangara.

The production facility houses a team of 10 mechanical, mechatronics and industrial automation engineers. It is equipped with the capability and resources to build, assemble and test Roborigger line of products.

The first production run of AR10, AR15 and ARM1500-20 Roborigger units is underway with expected delivery to our customers commencing in late May.

Roborigger deployed in Karrinyup Shopping Centre redevelopment site

A Roborigger AR10 unit has now been deployed on the Karrinyup Shopping Centre redevelopment project. Roborigger is being used for formwork and reinforcement placement as well as general lifting operations.

Roborigger enters fifth month of service at new WA Museum

Roborigger is proving its reliability by entering the fifth month of service on the new WA Museum site.  Our AR10 unit has been deployed since December and has performed above expectations . It is now  attached to the crane for all operations and operating without tag lines has now become standard on the site.

Watch the video:

Woodside to trial Roborigger on its onshore supply bases

Woodside has contracted TENSA Equipment to supply its newly released wireless load controlling system, Roborigger, for a 3-month’s trial at its onshore supply bases. 

Woodside’s contract came after TENSA successfully showcased Roborigger’s capabilities in a live demonstration to industry stakeholders last year. Attendees included companies in the mining and energy sectors including Woodside, BHP, Chevron and INPEX , construction companies including Multiplex and John Holland, Worksafe WA, and a number of crane and lifting consultants.

Woodside has been actively supporting Roborigger development since 2017. Woodside’s partnership with Innovation Central Perth supported TENSA’s project with Curtin University to develop Roborigger’s control algorithm. This received government funding under the Innovation Connections scheme. 

According to Woodside Portfolio Technology Manager, Darren Shanahan, “Woodside was very impressed by the live demonstration and we are very keen to trial this technology in our operations. We believe Roborigger has the potential not only to significantly reduce the risk of accidents but also to lead to more efficient operations at our onshore supply facilities.”

Commercial use of Roborigger commenced on Perth CBD construction site

Roborigger, TENSA’s new wireless load orienting device commenced its first working day on a Multiplex’s construction site in Perth CBD this week.

Multiplex has been supporting TENSA’s Roborigger development as an industry partner since 2017.

“At Multiplex we are always seeking to identify safer ways of doing things, so it’s been a great opportunity for us to partner with TENSA in the research and development of Roborigger”, said Multiplex Regional HSE Manager, Darren Ridley.

Roborigger has been utilised on site for a multitude of lifting operations including lifting and orientating long scaffolding truss as well trucks loading and unloading.

An example of Roborigger’s immediate safety gains is allowing the long scaffolding truss to be installed without taglines and personnel being out of the way below the landing point until the load is properly positioned.

“It’s exciting to now see it in action with the initial trial meeting all of our expectations. We’re looking forward to further exploring how it can benefit safe operations on site”, added Ridley.

TENSA’s new crane device, Roborigger, is ready to go on site

TENSA has demonstrated Roborigger to industry stakeholders including the WA regulators and the unit is now ready for use on site.

We are preparing to deploy it on a major construction site in the Perth city within the next month. Units will also be made available for other customers to trial. Currently the 10t and 5t capacity units are available but work is well advanced on the 20t capability unit.

TENSA’s new automated rotation device, Roborigger, showcased to industry stakeholders

TENSA has successfully conducted two live demonstrations of its newly released Roborigger, an automated load controlling device for cranes.

The demonstration highlighted Roborigger’s features and showcased its lifting and rotation capabilities with actual crane operations namely, lifting and rotating a 20ft container to 90 and 180 degrees as well as lifting and rotating a tower crane mast to 180 degrees. We also demonstrated how Roborigger can provide a rotational force continuously to hold a load in position against the wind.

Of particular interest to attendees was how the lifting operations can be monitored over the internet with Roborigger’s integrated IOT platform, where lifting productivity information is made available and fully customisable to operators. Data available includes a photo plus date, time, location and weight of each lift. Productivity data for the crane includes the number of lifts, number of lifts per hour, total load lifted per day. The system also sends diagnostic information on the equipment as well as alarm messages indicating overload and impact.

Industry stakeholders from construction, mining and energy sectors attended the demonstrations, represented by companies including Multiplex, John Holland, Woodside, BHP, INPEX, WorleyParsons Advisian, Worksafe WA, CFMEU, National Energy Resources Australia (NERA), and Curtin University.

New crane device, Roborigger, will make work sites safer

TENSA Equipment has been working with Curtin University to develop a better control algorithm for our automated wireless lifting and rotation device, Roborigger, which will improve workplace safety in construction and oil and gas.

The industry-academia collaboration, which was made possible through a $30,000 Innovation Connections grant, aimed to to develop a mathematical algorithm for determining the appropriate amount of torque needed by Roborigger’s motor under different conditions.

Read more about the article here: https://research.curtin.edu.au/story/new-crane-device-will-make-worksites-safer/

How to better understand your heave compensation needs

As a heave compensation specialist, at TENSA, we receive a lot of client’s enquiries on the right product to choose for different lifting applications in offshore operations.

The following table outlines the key criteria you can use to decide on the right heave compensation product for your project:

Choosing the right system

Dynamic load reducer (DLR) is used with offshore cranes to reduce the dynamic loads associated with lifts from moving vessels.

Passive heave compensation (PHC) is generally used to support a stationary load or to reduce motion when the lifting system is moving, for example, when lowering subsea equipment to the seabed. It is also used to minimise loads in the splash zone.

Active heave compensation (AHC) is designed to hold a load stationary relative to earth and is particularly useful for lowering a boat supported load to the seabed or connecting load to a fixed structure.

Common misconceptions

Misconception #1: To reduce crane dynamic loads, a long stroke is needed

The optimum cylinder stroke is between 1m and 1.5m as the shock absorption is most effectively handled over a stroke of 0.5m. The extra stroke allows the system to handle a wide load range without adjusting the setup as the cylinder force increases as the rod is extended.

Misconception #2: Active heave compensation is a good technique to reduce dynamic loads in the splash zone

In the splash zone, you must use passive heave compensation as AHC  will hold a load stationary to the seabed, whereas the load needs to stay stationary relative to the water surface to minimise loading.

Misconception #3: Active heave compensation is suitable for supporting loads connected to the seabed from a moving vessel

AHC is never perfectly accurate and can fail. Hence any rigid connection between a vessel and the seabed could be overstressed. A passive heave compensation device should be included in the connecting string.