Mechanical Parts
1. Double Girder EOT Crane trolley is composed of one set or two sets of (main, Aux.) lifting system, traveling mechanism, structural frame, etc.
2. Double Girder EOT Crane main beam, side beam and trolley frame material adopt Q345-B, main beam fatigue calculation in strict accordance with working level A5, steel plate must be treated with shot blasting, weld joint must be inspected, web height direction are not allowed splicing.
3. Double Girder EOT Crane bridge frame and trolley frame fitting with lifting position, easy to replace the wheel.
4. Double Girder EOT Crane long traveling wheel adopt double wheel rim type, surface hardness is HB320-380 after forming wheel machining; quenching hardened layer side depth not less than 15mm, surface hardness not less than HB320 in 15mm depth.
5. Reducer requires sealing, dust proof, set observation hole, air vent and drain hole in the upper.
6. The bridge end beam should be set with sliding block frame; overhaul cage is located at the collector.
7. Double Girder EOT Crane all major steel structure surface treated with shot blasting, sand-blasting grade reached Sa2.5 level.
8. Safety railings, columns, ladders, handrails production according to related standard, the relative height of the railing is 1050mm, spacing of 400mm, railings can withstand 1KN forces from all directions without plastic deformation.
9. Double Girder EOT Crane driver's cabin requires fully enclosed, with tempered glass, allow sufficient maintenance space, with comfortable adjustable seats, door locks, fire extinguishers and alarms, etc. The laying of the floor surface with non-conducting and non-skid pads. All windows can be safely cleaned, and can install from inside the cabin.
10. Double Girder EOT Crane body color: paint dry film total thickness not less than 120um. Finishing coat is uniform, fine, bright, complete and consistent color. Safety railings painted yellow and black safety colors.
Electrical Parts
Double Girder EOT Crane Power supply system
Power supply: 220V – 660V, three phase current, three-wire
Driving power supply: 220V – 660V,
Control power supply: 24 VAC, 36 VAC, 220VAC
Safety lighting power supply: 24 VAC, 36 VAC
Maintenance Power Supply: 220V – 660V
Double Girder EOT Crane Electrical control system
Main electrical components use Schneider.
Emergency stop: Emergency stop button is arranged on the operating table and the general control panel of the electric room, when the operator has accident or the equipment failure, press the emergency stop button, the whole crane driving power and control power are cut off.
Driver's cabin using linkage control with zero self-locking, the linkage table must have clear power indicator and work indicator.
Setting overload limiter, when lifting loads reach 90% of rated lifting capacity, alarming; reaching 105%, hoisting is prohibited.
Control cabinet (panel) should have steady mounting base, to prevent vibration; control cabinet (panel) using front wiring; PVC wiring duct should be smooth, no glitches, and ground insulation skin, wire cable must be protected by the wire duct exit.
Double Girder EOT Crane Lighting system
Driver's Cabin lighting: 20W fluorescent light
Under the main beam lighting: 2 halogen lamps
Overhaul socket: set 220V – 660V, 36V socket in the following parts: Driver's Cabin 220V – 660V, 36V 2pcs;
Main beam 220V – 660V, 36V 3pcs
Double Girder EOT Crane Other parts
Ensure maintenance space
Cross traveling cable select pull resistant flexible cable, located terminal box at both ends of the cable; terminal box adopt bakelite board mounted brass screws as terminals.
Wire cable laying on bridge frame, power, control, lighting and auxiliary circuits are all independent.
All double girder EOT crane using driver's cabin and wireless remote control, single girder crane using ground pedant and wireless remote control.
