Patented Square Head™ Concrete Vibrator Wyco's exclusive Square Head design: Features a constantly changing vibration pattern Provides 22% more displacement Offers 20% to 50% faster consolidation Is more effective in low-slump concrete than round heads Designed with hardened steel, the Wyco Square Head provides higher force levels, greater amplitude, longer wear, and unmatched reliability. TESTING PROVES SQUARE HEADS ARE SUPERIOR A)  "Almost complete compacting was achieved in 15 seconds by the inventive tool, while a very imperfect compaction was achieved through the conventional tool, and this even when operated for 26 seconds." (U.S.) Patent Office, Patent No. 3,042,386 B)  "Under controlled laboratory conditions, the Wyco Square Head Vibrator continually compacted the concrete studied from 20-50% faster than the round head vibrator." Report No. B8047-1, Independent Non-Profit Research Laboratory * * Name and report upon request Consolidated 15 seconds with a SQUARE head Consolidated 26 seconds with a ROUND head SQUARE HEADS VIBRATE A LARGER SURFACE AREA The unique ever-changing, multiple flat sided, polygonal orbit of the Wyco Square Head is more energy efficient and more effective in reducing cavitation (post-holing) ensuring a faster and more complete consolidation, especially in low slump concrete. Square Head Size Equivalent Round Head Size Width of Vibration Force in Lbs @ 10,500 VPM 13/16" 1" 5" to 8" 138 1" 1-5/16" 7" to 10" 310 1-3/8" 1-3/4" 9" to 13" 720 1-3/4" 2-1/4" 11" to 17" 1150 2" 2-1/2" 13" to 22" 1511 2-1/4" 2-7/8" 15" to 28" 1983 The Wyco Tool Company 8635 Washington Avenue, Racine, WI 53406 TEL: 262-639-6770 or 800-233-9926 FAX: 262-639-2023 or 888-992-6872 E-mail: wycosales@wycotool.com MADE IN USA © 2008 Racine Federated Inc. All rights reserved.