J.D. Neuhaus, Air Operated HoistsThe new, innovative Profi 75 TI and Profi 100 TI hoists offer SWL capacities of 75 and 100 metric tons (t), respectively. Existing products in the Profi range cover lift capacities from 550 lb. up to a full 60 t, ideally suited to engineering environments.

These 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 9-kW power output, adequate for the operation of either hoist while still providing significant energy reductions.

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 0.53 m/min (Profi 75 TI) and 0.35 to 0.4 m/min (Profi 100 TI). Lifting speeds without a load increase from 0.85 to 1.33 m/min (Profi 75 TI) and from 0.7 to 1.0 m/min (Profi 100 TI). The lowering speeds at full load have also benefited, increasing from 1 to 1.25 m/min (Profi 75 TI) and from 0.8 to 0.95 m/min (Profi 100 TI).

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 This ensures that the relation between hoist unit weight and safe working loads is much better than with the superseded hoist designs.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 1,650 lb. has been achieved for the Profi 75 TI, and 1,410 lb. 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.

J.D. Neuhaus, www.jdngroup.com

 

2018 Cement Directory

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