Hydraulic Pumps offer displacement to 45.75 cu in.

Press Release Summary:

Comprised of 8 basic pump sizes, Superior Performance (SP) pumps include shaft seal, valves, and servo control system. Select pumps can be installed in tandem configuration, enabling one electrical motor to drive both pumps. With noise level of 75 dB(A) for pumps up to 30.5 in.³, products include 15.25, 21.66, and 30.5 in.³ models in addition to largest (45.75 in.³) model. Pumps with displacements of 2.44, 4.33, 7.63, and 11 in.³ are also available.

Original Press Release:

Largest Ever Hydraulic Pump, Part of Swedish Drive System

The Swedish Company Hagglunds is to launch its own pump series including its largest pump ever, with a maximum displacement of 750 cubic centimeters (45.75 cubic inches). The product series will be progressively introduced and includes eight basic pump sizes. This will make it possible to closely adapt the pump to drive speed requirement, and in doing so, optimizing the customer's manufacturing process and, together with the company's equipment provide a complete drive solution. This pump series is one step further for Hagglunds in optimizing their complete drive systems. Benefits mentioned are space savings, possibilities to tandem mount pumps and low power consumption. The company will continuously work with improvements of pump efficiency. "If the degree of efficiency is increased by three percent in a 1000 kW (1340 HP) system, the power consumption drops by 30 kW. This is equivalent to a saving of about SEK 120 000 - 240 000 ($13 000 - $26 000 USD) per year of operation, which reduces pay-off time for the investment. Low energy consumption is also positive in terms of the environment," says Kalevi Niemi, Marketing Director. The pump series, denoted SP as in Superior Performance, is the result of a co-operation between Hagglunds, who specified the series, and the German Company Brueninghaus. Some component parts have been modified and several new functions have been added, e.g. a shaft seal, valves and a servo control system. These pumps have a lifetime equal to that of the other parts of Hagglunds drive solutions. "We follow the same strict requirements that we apply to our hydraulic motors with these new hydraulic pumps," explains Berth-Ove Bystrom, Head of Development for this product series. The SP pump series, together with Hagglunds motors, power units and control systems provide the means to package a complete and customized combination for an optimized drive solution. Some pumps can be installed in a tandem configuration. This makes it possible to use a single electrical motor to drive both pumps thereby load sharing two drives on one electric motor. While combining different pump sizes to optimize operation, space is also saved. Low noise level and high efficiency As the new pump models are introduced to the market, the noise level will be reduced and, in the long-term, efficiency will be increased upwards to closer match the efficiency of the motors, to improve the overall efficiency of the complete drive solution. "A low noise level is an important aspect of the working environment and our goal is 75 dB(A) for pumps up to 500 cubic centimeters (30.5 cubic inches)" says Bystrom. Beside the 750 cubic centimeter (45.75 cubic inches) pumps, the 250 (15.25), 355 (21.66) and 500 (30.5) cubic centimeter pumps are also available, with the four smaller models, 40 (2.44), 71 (4.33), 125 (7.63) and 180 (11) cubic centimeter introduced very soon. For more information, please contact: John Duncan, President
Hagglunds Drives Inc.
2275 International Street
Columbus, OH 43228, USA
Tel: +1 614 527-7400, Fax: +1 614 527-7401
E-mail: john.duncan@us.hagglunds.com
http://www.hagglunds.com