Pfaff-silberblau at Motek 2006, Hall 4, Booth 4327

Pfaff-silberblau Expands Standard Options for Electromechanical Linear Actuators

Standard ELAs now available with incremental devices, absolute multiturn encoders, protective bellows, or a “free shaft end.”

Friedberg, Germany, July 26, 2006 - At Motek 2006 from 26 – 29 September in Sinsheim, Germany, Pfaff-silberblau Hebezeugfabrik GmbH & Co. KG of Derching/Friedberg, Germany, will be presenting its Electromechanical Linear Actuators (ELAs) with expanded standard options. The 20.1, 30.1 and 40.1 ELAs are now available in standard versions with incremental encoders, absolute encoders, protective bellows (flexible protection boot) or a “free shaft end.” Here with, Pfaff-silberblau meets the increasing demand for special options and add-on parts for their well-proven linear actuators. For position measurement or for electric synchronization of several ELAs, the linear actuators can now be ordered with a factory installed incremental encoder (IE) or an absolute multiturn encoder (AME), which are mounted on the drive’s second shaft end. Depending on the specific version, the IE supplies 10 or 20 impulses per revolution. Its standard voltage supply is 11 to 27 VDC, and the output level can be selected as 5 V or 11 to 27 volts. The AME offers a maximum overall resolution (encoder capacity) of 25 bits, and 256 steps per revolution are preprogrammed (max. of 13 bits). Up to 4,096 revolutions can be counted (max. of 12 bits). The supply voltage lies between 11 and 27 VDC. There are two options available for reading out acquired data: The absolute multiturn encoder with an RS 422/ SSI interface transmits a pre-set gray code (programmable output code). When data is transmitted via Profibus-DP at a transmission rate of 9.6 kBaud to 12 MBaud, the output code is parameterized according to PNO Class 2. The address can be set using a DIP switch. Other rotary transducer versions are also available upon request. Additional new features for the ELAs from Pfaff-silberblau include the standard “free shaft end” for manual re-adjustment of the line¬ar actuator using a handwheel, as well as precisely fitted bellows for deployment in harsh environments. The latter feature protects the shaft housing and the sealing package against external influences such as dirt, shavings, or other deposits; and outdoors, it offers protection against rain, snow and ice. The bellows consist of a thermoplastic that is resistant to the influence of weather, ozone and light. Although as a standard, it is configured for the temperature range from -10°C to 60°C, it is also available upon request in special versions for extremer temperatures. Pfaff-silberblau’s electromechanical linear actuators with the ELA 20.1/ 30.1 and 40.1 model sizes can be supplied for use in potentially explosive atmospheres containing dust and gas in accordance with EU Directive 94/9/EC. Depending on the size and version, they have standard stroke lengths of 200 to 800 mm and a maximum dynamic axial load of 1,300 kg. Speeds can reach up to 84 mm per second depending on the load and the ratio. The self-locking trapezoidal screw and an optional brake ensure ideal safety, and the encapsulated construction and high-grade lubrication ensure a long service life. For longer duty cycles and more stringent requirements with regard to positioning accuracy, there is a variety of standardized ball screws available. Pfaff-silberblau’s ELAs – with all their specifications, standardized options and add-on parts – are documented in a new brochure (at present only available in German; can be requested by sending an e-mail to: antriebstechnik@pfaff-silberblau.de). Thanks to a convenient, ordering code, it is now even easier for interested parties to request offers or place orders. Pfaff-silberblau will be showing some of its ELA versions at the Motek 2006 in Sinsheim in Hall 4 at Booth 4327. Besides a series of electromechanical screw rams, extensive range of worm-gear screw jacks and spectacular applications, other exhibits will include the PHOENIX Lifting column from Pfaff-silberblau’s subsidiary ALLTEC.

About Pfaff-silberblau Pfaff-silberblau Hebezeugfabrik & Co. – established over 135 years ago – currently has approximately 325 employees and a group turnover in excess of 62 million euros (2005 fiscal year). The company is a leader in the fields of hoisting machinery and materials handling equipment, actuator technology/ worm-gear screw jacks, and road & rail technology. Pfaff-silberblau is an experienced partner for solving any problem related to moving (turning, lifting, lowering, pushing, shunting) loads of up to 1,000 tonnes in any direction. The company has factories in Friedberg and Heilbronn (Germany), and is represented by subsidiaries in Switzerland as well as Austria, the United Kingdom, the Benelux countries, Poland and Hungary. Beyond that, more than 40 affiliated representative offices are active for Pfaff-silberblau and its customers around the world.