Straightpoint - know the load
For 40 years Straightpoint has manufactured and supplied cabled and wireless telemetry loadlink, load shackles, load cells, digital dynamometers, compression loadcells, crane scales, running line tensiometers and software solutions as well as a range of intrinsically safe load cells.
Safety, reliability and quality are paramount in the lifting and rigging industries and so Straightpoint designs and manufactures to the highest standards including ISO9001, DNV-GL Type Approval, ATEX and IECEx, whilst holding other accreditations and active memberships in key associations such as LEEA, AWRF, SC&RA and ASME.
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SP Bluetooth Load Shackle for Super-Yacht Testing
RSB Rigging Solutions (RSB) used a Bluetooth-enabled 6.5t capacity Straightpoint (SP) load shackle for load tests aboard a luxury super-yacht at Maritimo, Palma de Mallorca, Spain.
The specialist supplier of rope and running rigging to the luxury yacht sector used the wireless load shackle and water bags to test and certify the side access rail system and davit crane on the Motor Yacht Halo, a 40m luxury explorer super yacht. The work was carried out in accordance with Lloyd’s Register maritime classification.
The Sanguineti Chiavari CE RINA-approved 2,000kg capacity, 360-degree rotating fly bridge deck crane is used for the deployment and recovery of the yacht’s smaller onboard “tender” vessel, which is used for excursions, taxi to shore and rescue situations. The Harken R27 access rail systems are installed to the side of the vessel to allow easy and safe access for crew during maintenance.
Anthony Eland, load test manager at RSB, said: “Two tests were performed on the deck crane: a static test at 1.25 times safe working load [2,500kg] and a dynamic test at 1.1 times safe working load [2,200kg]. The access rail system was tested to 600kg at the start, middle and end of each 3m section of track.”
Eland explained that the water weight system from Seaflex can be filled to the desired capacity to meet the weight requirements of the item to be tested. When filled with water, he said, 1kg equals 1 litre. “It is the safest and most efficient method of load testing these pieces of lifting equipment,” he added. “The [water weight] load bag uses a number of smaller shackles in its construction in order to connect the bag to the masterlink.”
He continued: “We use the load shackle for its ease of use as no connecting strops are needed. We frequently work with limited space so every centimetre in height saved is very beneficial; the compact design of the shackle minimises the length of our total test assembly and in some cases, it wouldn’t be possible to do the test without it. Also, the wind can cause instability when lifting a load and the compact bow shackle design helps to minimize the pendulum effect created.”
Two versions of the wireless load shackle are available: a long range, 2.4Ghz version providing a wireless range of 1,000m or 3,280 ft. to SP’s SW-HHP handheld or software options; and, as RSB used, a Bluetooth product that can be connected to any smart phone running the free HHP app on iOS or Android at ranges up to 100m or 328 ft.
Eland said: “[Bluetooth] was one of the selling points of the product. Receiving load test data wirelessly is essential when the load is suspended. Downloading the [HHP] app to our company phones eliminates the need for a separate dedicated receiver.”
RSB regularly supplies and facilitates the installation of Harken Access Rail Systems for the suspension of people and crane cables / lifting accessories for the marine industry. In this case, it delivered the testing and inspection package for a regular customer that has subscribed to its biannual certification service.
Caption: The load shackle is rigged between the crane hook and the water bag.
Caption: Bluetooth technology was a standout feature for the RSB rigging team.
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Straightpoint, a UK manufacturer and part of The Crosby Group, has been providing load cells to companies around the world to ensure their loads are safe to lift, offload, pull or push for over 40 years. Straightpoint’s products are currently being used within a wide range of industries such as oil and gas, shipping, construction, renewable energies, lifting and cranes, mining, staging, test and inspection, and military applications. Products are available to buy or rent. http://www.straightpoint.com