Modern Mining June 2016

PRODUCT News

Cast iron gear pumps feature extended longevity ally, have larger and longer front and rear housings to accommodate shaft supports which may separate port housings and are therefore less compact,” explains HAW Key Accounts Manager Dries van Wyk. “This range of pumps can accommodate any engineering design and satisfies a variety of OEM manufacturing designs.”

Hydraulic and Automation Warehouse (HAW), part of the Hytec Group, one of the largest distributors of hydraulic com- ponents in Southern Africa and specialist supplier of products for mobile machin- ery, has added newly-developed cast iron gear pumps with extended longevity and numerous advantages to its existing range of Salami gear pumps and other hydraulic components. The newly developed PG331 series is a spheroidal-designed cast iron gear pump with four different porting arrangements. It can be supplied in variations of 12 dif- ferent displacements and has up to five flange mounting styles and seven shaft types. The pump design also allows for standard SAE flanges. The gear pumps are compact with smaller dimensions achieved by installing the gear set, gear support bushings, and suction and delivery ports within the main body, housed by a front mounting flange and rear cover.“Competitor models, gener-

Strength, high efficiency and long ser- vice in severe operating environments are achieved through the pump’s one-piece drive shaft construction, with a large area, and low friction bushings. “In addition,” states Van Wyk, “an advanced thrust plate design and high quality machining toler- ances optimise performance and high volumetric efficiency throughout the full pressure range. This also allows for excel- lent axial compensation. Moreover, PG331 gear pumps feature double shaft seals on pumps with reinforced inner shaft seals for motors.” Another advantage of this pump range is the high carbon content and low static

discharge capabilities of the pumps due to their cast iron make-up. This combination renders them ‘explosion-proof’, making them a suitable choice for use on under- ground vehicles and equipment – even those used in fiery mines. HAW is the official authorised sub-Saharan Africa distributor for Salami- manufactured gear pumps, motors and mobile control valves. Dries vanWyk, Hydraulic and AutomationWarehouse, tel (+27 11) 281-3800 HAW’s newly developed PG331 cast iron gear pump has four different porting arrangements.

June 2016  MODERN MINING  59