J D Neuhaus Redesigns Profi Hoists

MarineLink.com
Tuesday, February 18, 2014
Photo: J D Neuhaus

As a completion of the redesign project for its Profi range of air operated hoists, the J D Neuhaus company has launched its Profi 75 TI and Profi 100 TI hoists, offering SWL capacities of 75 and 100 metric tons respectively. Existing products in the Profi range cover lift capacities from 550 lbs up to a full 60 metric tons, ideally suited to engineering environments.

The latest introductions, which incorporate savings in energy requirements as well as reductions in both weight and overall size dimensions, cover the demanding requirements of heavy engineering working conditions. The key component of these hoists is a new air motor unit, based on the well-proven J D Neuhaus motor-brake concept and incorporating a patented integrated brake system, with a stepped brake piston and a reliable self-lubricating rotor. In the standard configuration of a 6 bar air pressure supply, the motor provides a 9kW power output, adequate for the operation of either hoist while still providing significant energy reductions.

At full nominal lift capacities (75 or 100 metric tons), the compressed air consumed is 7.6m3/min which represents in excess of 30% saving over the hoists being replaced. On lowering of full loads, the air consumed is 6m3/min, which represents an impressive full 50% saving over the power/energy consumption of the hoists being replaced. The new hoists are designed with machinery group classification according to ISO 4301/FEM 9.5 II is M3/1Bm, which is good for 400 hours full load operation.

Although the overall air consumption has been reduced significantly, the lift and lower speeds with/without loads have been increased compared with the previous models of hoists, which helps to reduce handling and to increase production outputs over a full working day. The lifting speeds at full load have increased from 0.45 to 0.53m/min (Profi 75 TI) and 0.35 to 0.4m/min (Profi 100 TI). Lifting speeds without a load increase from 0.85 to 1.33m/min (Profi 75 TI) and from 0.7 to 1.0m/min (Profi 100 TI). The lowering speeds at full load have also benefited, increasing from 1 to 1.25m/min (Profi 75 TI) and from 0.8 to 0.95m/min (Profi 100 TI). Computer simulations like CFD were utilized throughout the development processes, with all simulation results validated in various praxis tests to achieve energy savings up to 50%, depending upon the operating conditions.

The combination of optimized material selection and modern design methods has also achieved significant weight reductions for the new hoists. This ensures that the relation between hoist unit weight and safe working loads is much better than with the superseded hoist designs. An overall weight saving of 1650lbs has been achieved for the Profi 75 TI, and 1410lbs for the Profi 100 TI. Some reductions in size have also been achieved, particularly that between the load bearing surfaces of the load and suspension hooks. Significant reductions in sound levels during operation have also been achieved, with the new hoists registering 77 dB(A) at full load lifting and 83 dB(A) on the lowering operation.

Lifting and lowering motor limiters incorporating a pneumatic pin valve design are also available as optional extras for both hoists.

jdngroup.com
 

Maritime Reporter July 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

New Products

SSE Rolls Out Two Shipping Indices

Shanghai Shipping Exchange launched on Wednesday the "Belt and Road" shipping indices, tracking trade data and shipping freight rates under the initiatives of

INTERSCHALT VDR Earns CCS Certification

INTERSCHALT maritime systems AG, the provider of maritime software, services and systems for navigation and communications systems (NavCom) and manufacturer of Voyage Data Recorder (VDR) systems,

Coxreels Introduces Three-way Brake for 1600 Series

Hose, cord and cable reel manufacturer Coxreels announced the addition of an optional accessory to improve efficiency and safety of its 1600 Series reel, adding

News

SSE Rolls Out Two Shipping Indices

Shanghai Shipping Exchange launched on Wednesday the "Belt and Road" shipping indices, tracking trade data and shipping freight rates under the initiatives of

Shanghai 6th Best Shipping Center Globally

Shanghai has moved up the rankings of the world’s top shipping centers to sixth place, surpassing Dubai thanks to Free Trade Zone regulations and the Belt and Road Initiative,

China Cosco Guides H1 Profits at $306mln

China Cosco Holdings, the flagship unit of Cosco Group, is expecting a net profit of Yuan1.9bn ($306m) for the first half, against the Yuan2.3bn loss during the same period last year.

Marine Equipment

UK Navy Chooses Effer Crane Again

Cranes manufacturer Effer informs its marine crane has recently been installed aboard the U.K. Royal Navy’s patrol vessel HMS Mersey.   The new 5s 275M crane,

Activists Block Shell's Arctic Drilling Quest

Greenpeace protestors dangling from a bridge on Thursday in Portland, Oregon, halted an icebreaker that Royal Dutch Shell needs in northern Alaska before it can

Fire-stricken Icebreaker Overhauled

SENER concludes the Almirante Irizar icebreaker engineering works for re-outfit and overhaul   SENER reports it has completed the engineering works relating to

Deck Machinery

UK Navy Chooses Effer Crane Again

Cranes manufacturer Effer informs its marine crane has recently been installed aboard the U.K. Royal Navy’s patrol vessel HMS Mersey.   The new 5s 275M crane,

Coxreels Introduces Three-way Brake for 1600 Series

Hose, cord and cable reel manufacturer Coxreels announced the addition of an optional accessory to improve efficiency and safety of its 1600 Series reel, adding

Eastern Launches Second MPSV for Hornbeck

Eastern Shipbuilding Group, Inc. has launched the second of two 302’x76’x26’ multipurpose service vessels in the HOSMPSV 310ES series for Hornbeck Offshore Services, LLC.

 
 
Maritime Contracts Maritime Security Maritime Standards Naval Architecture Pipelines Salvage Ship Repair Ship Simulators Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1737 sec (6 req/sec)