Self-erecting hydraulic crane OMV 331

Maximum working radius 20 m
Load at tip 700 kg
Maximum load 1800 kg
Hook height 16.8 m
Rotation radius 1.75 m
Principal features and fittings
Crane mass 5,800 kg with site axles, excluding counterweight (9,800 kg)
Modular arm to obtain different working radiuses and weight-bearing capacities with simple operations
Automatic shock-absorbing buffers and "distant" limit switch selector for immediate operation with folded arm
Arm may be mounted up to 30° with rampant trolley and no need for special adjustment of limit switch
Inverter-controlled lifting with four speeds
Three inverter-controlled rotation speeds
Four inverter-controlled translation speeds
"OYMC" Omron-Yaskawa Motion Control Inverter
Electrical system and reduction gear for trolley translation mounted low down, built into the tower, with limits switches and limiters that may be calibrated from the ground
Hydraulic mounting with two independent cylinders, permitting crane rotation by 360° and remote control
Counterweight made of specially shaped concrete blocks (2x1000 kg + 2x975 kg + 6x975 kg, or 2x1750 kg + 7x900 kg transversal)
Hot galvanised arm, tower, tie rods, jacks and stabilisers
Electrolithic galvanisation of pins, bolts, washers and accessories
Hydraulic unit, fifth wheel and protected mechanisms under galvanised sheet metal casing
Electrical system in accordance with EN 60204, with magnetothermal switches, acoustic overload signal and separate alarm signal, "SIEMENS" magnetothermal switches and contactors, "OMRON" relays
Cable command with pushbutton panel, prepared for installation of internal or external remote control with protective shelter
Stainless steel case for electrical equipment
Instructions and spare parts manual
"EC" declaration and "product civil liability" insurance