Piston Pump handles polyurethane components.

Press Release Summary:

Variable-displacement, axial piston pump, Model A7VK is designed for high-pressure pumping of polyol and isocyanate used in making polyurethane. Capable of outlet pressure up to 3,625 psi, pump features double shaft seal and flushing chamber that helps identify any inboard seal leakage. Pump displacement can be adjusted manually from 0-28.1 cm³ using integrated display in handwheel. Once adjusted, displacement can be locked to prevent accidental changes.

Original Press Release:

Bosch Rexroth Introduces New Pump for Polyurethane Components

Variable-displacement axial piston pump is ideal for the plastics industry

The compact A7VK pump uses a special design making it especially suited for pumping and metering fluid for manufacturing polyurethane components.

The new A7VK axial piston variable-displacement pump from Bosch Rexroth is specifically designed for high-pressure pumping of polyol and isocyanate used in making polyurethane. The feed channel is separated from the drive work chamber to allow high pressure filling for highly viscous fluid. The pump is capable of outlet pressures up to 3625 psi (4500 psi peak). Good volumetric efficiency is achieved using a robust internal rotary group and proven axial tapered piston technology.

Precise metering of the pump displacement can be adjusted from 0 to 28.1 cm3 using a manual adjustment with an integrated display in the handwheel. Once adjusted, the displacement can be locked to prevent accidental changes.

The pump has a double shaft seal made with special material and a flushing chamber that helps identify any inboard seal leakage. Internal parts are made without non-ferrous metals for compatibility with polyurethane components. The pump housing is also treated through a special process for corrosion protection.

The A7VK, which can be used with or without a feed pump, offers a more compact design than its predecessor model but maintains the same flange dimensions, drive shaft, and functions to make replacement easier.

The Bosch Group is a leading global manufacturer of automotive and industrial technology, consumer goods, and building technology. In fiscal year 2004, some 242,000 associates generated sales of 40 billion euros. The Bosch Group today comprises a manufacturing, sales, and after-sales service network of some 260 subsidiaries and more than 10,000 service centers in over 130 countries.

In North America, the Bosch Group manufactures and markets automotive original equipment and aftermarket products, industrial automation and mobile products, power tools and accessories, security technology, thermo technology, packaging equipment and household appliances. Bosch employs nearly 23,000 associates in more than 80 primary and 20 associated facilities throughout the region with reported sales of $7.8 billion in 2004.

Under the industrial automation and mobile products segment, Bosch Rexroth Corporation is a wholly owned subsidiary of Robert Bosch GmbH. In the year 2004, Bosch Rexroth achieved sales of approximately $5.3 billion (4.1 billion Euros) with 26,400 employees worldwide.

Under the brand name of Rexroth, the company offers all relevant drive, control and motion technologies: from mechanics, hydraulics and pneumatics to electronics and associated services. Rexroth has 500,000 customers in over 80 countries and is an extensive supplier of components and systems for industrial and factory automation and mobile applications. For more information, visit www.boschrexroth-us.com.

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