Concrete Vibrator Machine – Electric Vibrator for Construction & Slab Compaction General Standard Specifications Speed: 2800 r/min Insulation Class: Class E Housing Material: Cast Aluminum Frequency: 50 Hz Structural Components: Dynamically balanced high-speed rotor, cold-rolled silicon steel coil with wide-view design, wear-resistant precision bearings I. ZW-3 Series Overall Dimensions: Total Length 235 mm, Total Height 165 mm; Base hole spacing: 110 mm, mounting hole diameter: 10 mm; Net weight: 4.4 kg 250 W, Three-phase, 380 V Rated current: 1.2 A, Excitation force: 120 kg 250 W, Single-phase, 220 V Rated current: 1.9 A, Excitation force: 120 kg 370W, three-phase, 380V Rated current: 1.2A, excitation force: 200kg 370W, single-phase, 220V Rated current: 1.9A, excitation force: 200kg 550W, three-phase, 380V Rated current: 1.2A, excitation force: 300kg 550W, single-phase, 220V Rated current: 1.9A, excitation force: 300 kg II. ZW-3.5 Series Overall dimensions: Total length 280 mm, total height 177 mm; base hole spacing 110 mm, mounting hole diameter 12 mm; net weight 7.5 kg 750W, three-phase, 380V Rated current 1.9A, excitation force 350kg 750W Single-phase 220V Rated current 5.2A, excitation force 350kg III. ZW-5 Series Unit Dimensions: Overall length 280mm, overall height 177mm; base hole spacing 110mm, mounting hole diameter 12mm; Net weight: 10.5 kg 1100W, three-phase, 380V Rated current: 3.2A, excitation force: 500 kg 1100W, single-phase, 220V Rated current: 10.7A, excitation force: 500 kg