Truss Type 500T Double Girder Gantry Crane 28.5M Span Outdoor Overhead Crane

Heavy Duty Trussed Type Double Girder Gantry Crane Widely Applied Outdoor

General Introduction:

The gantry crane is a bridge-type crane in which the bridge is supported on the ground track by the outriggers on both sides. Structurally, it consists of a gantry, a cart running mechanism, a hoisting trolley and electrical parts. Some gantry cranes only have outriggers on one side, and the other side is supported on the workshop or trestle, which is called a semi-gantry crane. The upper bridge frame of the gantry crane (including the main beam and the end beam), the outriggers, the lower beam and other parts are composed. In order to expand the working range of the crane, the main beam can extend beyond the outriggers to one or both sides to form a cantilever. A hoisting trolley with a jib can also be used to expand the crane's operating range through the pitch and rotation of the jib.

Under normal circumstances, the lifting capacity is less than 50t, the span is less than 35m, and there are no special requirements for use, the single main beam type should be selected. If the width of the gantry leg is required to be large, the working speed is high, or the heavy and long pieces are often lifted, the double-girder gantry crane should be selected.

Detail Features:

DESIGN:Compact dimensions, low weight, easy to operate and easy to maintain, modular design with direct fits between components.

MOTORS:Axon uses sturdy cylindrical / conical rotor pole-changing motors with elegant continuous cast aluminum sections, integrated safety brakes insulation class F, IP54 protection.

GEAR BOXES:Precision flat helical / spur gear units in light alloy housings with case-hardened gears, high-grade surface treatment and permanent oil / grease lubrication.

BRAKES:Single / Dual-disc electromagnetic DC brakes featuring automatic braking on power failure. Environmentally sound brake linings designed for approx. 1 million braking operations allow long maintenance intervals.

ELECTRICAL PANEL:Modular design, covering a very wide operating range. The systems are designed for ease of installation and maintenance and reliable operation, with fuse less circuitry, ducted wiring and non-screwed terminals. Each drive group is equipped with a motor overload protection device to provide effective protection against inadmissible overloading.

PAINTING:Every component & part is thoroughly scrubbed & painted with two coats of primer before assembly & two coats of *polymer based quick drying acrylic polycot paint after testing.

Typical Technical Parameters:

Advantages:

1. Extremely Rigid Box Girder Frame

• Compact structure, space saving.

• Single box girder, adapt advanced welding technology, ISO standard.

• Material Q235B ( Fe37).

• 10.9 class High tension bolts mouting between girder and legs, life time safety connection.

• Double flanged or flat wheels, anti-friction bearings, cellular buffers, derailment protectors.

2. Realiable Electric Trolley

• Rope Drum material Q235B, more realible

• Durable Rope guide, long life serving

• Limit Switch and overload protection device help you keep safety

3. Easy to Operation, Precise Position, More Safety

• LIMIT SWITCHES – To prevent over hoisting & over lowering of hook.

• PUSH BUTTON STATIONS – Extra light, handy, easy to operate. Wireless Radio remote controls are also conveniently and widely being used now.

• SOFT STARTS – Electric / Electronic soft start modules electrically coupled to the long travel drives to achieve jerk free, cushioned & smooth starts.

• MAINTENANCE PLATFORM WITH HAND RAILING – Easy, simple & safe maintenance of the Crane extended partially or along the full length of the girder.

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