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Opportunities: Underhung overhead or bridge cranes are a good choice for factories and warehouse facilities that want to free floor space of obstructions and improve safety and productivity. Underhung cranes-sometimes referred to as under-running cranes-do not require supportive floor columns. This is because they typically ride on the lower flange of a runway beam suspended from the facility roof or rafters.
By optimizing end approaches, underhung overhead cranes make the most of facility space. That is, they allow the hoist to get closer to the end truck or end of the runway than is possible with a top-running crane. The underhung configuration also maximizes the bridge end approach, or how close the bridge girder can get to the wall or the end of the runway.
Considerations: As their beams are suspended from building roofs, underhung overhead cranes are limited in lifting capacity-usually 10 tons or less. Before choosing an underhung crane you should have the structural strength of your facility's roof evaluated. Supporting beams can be added to permit increased load capacity.
----------------------------------------------------------Design and Manufacturing Feature-----------------------------------------------------------------
Design Code:
NANTE's Single Girder Low headroom overhead crane follows the design code of FEM, CMAA, ISO EN, BS, GB standard.
Low headroom Hoist:
C-shaped design, compact structure, smooth operation, accurate positioning, high Safety reliability, and Maintenance-friendly.
Girder:
Compact Design and low weight, use Q355B steel material(ISO EN S355, DIN ST52, ASTM A 572 Grade 50), welding specification follows ISO 15614, AWS D14.1, deflection can from 1/700 ~ 1/1000, MT or PT is requested for Fillet welding and UT is requested for joint welding.
End Carriage:
Direct Driving design with high transmission efficiency. Using hollow tube for the steel housing. Wheel material is alloy steel with proper heat treatment which is more stable and durable.
Gear Motor:
Worldwide top brand gear motor to make sure the quality, IP55, F insulation class, overheat protection, manual release bar, and equipped with electro-magnetic brake.
Control Panel:
Follow IEC standard, IP55 powder coating high quality enclosure, socket plug-in for easy connection, DIN standard terminal, international brand for the inverter, MCB, Contact and electrical devices on the panel
Festoon System:
Double line Galvanized C track system with flexible flat cable, one line for hoist power and signal transmission, one line for the pendent control trolley movement. No-welding claw is design for the brackets of the festoon system fixing.
Safety Protection Functions:
NANTE single girder overhead crane include a lot of protection functions, like Overheat protection for the lifting, load cell type overload limit switch, up&down position limit switch, cross limit switch for the cross travel and long travel. Phase sequence relay, and other optional functions, like crane monitoring system, LED load displayer.
Controls:
NANTE single girder overhead crane can offer both options of remote control and pendent control
Anti-corrosive Treatment:
Shoot Blasting follow ISO8501-1 SA2.5 class, roughness follow ISO 8503 G class, clearness follow 8502-3 Level II. Use top brand's Rich zinc epoxy painting for the prime, middle layer coating. Use polyurethane topcoat for the finished layer coating. All NANTE painters are trained or inspected by NACE or FROSIO level II Inspector
| Capacity | 1T | 2T | 3.2T | 5T | 6.3T | 10T | 12.5T | 16T | 20T | |
| Duty Group(ISO/FEM) | M6/3m | M5/2m | M5/2m | M5/2m | M4/1Am | M5/2m | M4/1Am | M5/2m | M4/1Am | |
| Span | m | 5~30 | 7.5~30 | 7.5~30 | 10~30 | 10~30 | ||||
| Height of Lifting | m | 6~36 | 6~18 | |||||||
| Power | 220v, 240,380v,400v,415v, 440v,460v,480v,525v / 3P / 50hz, 60hz | |||||||||
| Control Voltage | 24v, 36v, 48v, 110v, 220v | |||||||||
| Lifting Speed | m/min | 5/0.8 | 5/0.8 | 5/0.8 | 5/0.8 | 5/0.8 | 5/0.8 | 5/0.8 | 4/0.66 | 4/0.66 |
| Trolley Speed | 5/20 (Inverter Control) | |||||||||
| Long Travel Speed | 5/20, 8/32, 10/40 (Inverter Control) | |||||||||
| Lifting Motor | kW | 3.2/0.45 | 6.1/1 | 9.5/1.5 | 12.5/2 | 15/2.5 | ||||
| Trolley Motor | 0.64x1 | 0.64x1 | 0.96x1 | 0.96x2 | ||||||
| Long Travel Motor | 0.25~0.55kw × 2 | 0.55~0.75kw × 2 | 0.75~1.5kw × 2 | 1.5~2.2kw × 2 | ||||||
| Model of Hoist | NHA Low Head Room Hoist (Double Lifting Speed is defualt, Inverter control is optional) |
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| Model of End Carriage | SEC End Carriage | |||||||||
| Gear Motor Brand | Worldwide Brand & NANTE | |||||||||
| Festoon System Type | C track with Flat cable | |||||||||
| Long Travel Power Supply | High-Tro Reel (HTR-3, HTR-4), Enclosed Conductor Rail (HFP52, HFP56) | |||||||||
| Control Model | Pendent Control, Remote Control | |||||||||
| Recommended Crane Rail | 40×30, 50×30 | 50×30, 60×40 | 60×40, 70×40 | |||||||
| IP/Isulation Class | IP55/F Class is default , IP65,IP66 and H class is optional | |||||||||
| Brake Type | Electro-Magnetic Brake | |||||||||
| Safety Protection Function | Hoisting Overheat Protection, Phase Sequence Relay Overload Switch, Up&Down Position Limit Switch, Cross Limit Switch |
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| Safety Device (Opitional) | LED Load Displayer, Hoist Monitoring System, Alarm System | |||||||||
Q1: Are you Manufacturer or Trading Company?
A1:We are an integrated industrial and trade enterprises. We have our own R&D team, factory and marketing department,
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