The terms gantry crane and overhead crane (or bridge crane) are often used interchangeably, as both types of crane straddle their workload. The distinction most often drawn between the two is that with gantry cranes, the entire structure (including gantry) is usually wheeled (often on rails).
What is an overhead gantry crane?
A gantry crane is a type of overhead crane with a single or double girder configuration supported by freestanding legs that move on wheels or along a track or rail system. … These are typically used for an outdoor application or below an existing overhead bridge crane system.
What are overhead cranes used for?
To move extremely heavy or bulky loads through the overhead space in a facility, instead of through aisles or on the floor, an overhead crane (also called an industrial crane, crane, or overhead traveling crane is a machine that lifts, lowers and moves a load horizontally.
What does a gantry crane look like?
A gantry crane is similar to a bridge crane, but instead of moving on suspended runways, the crane uses legs to support the bridge, trolley, and hoist. These legs travel on rails that are embedded in, or on top of the floor or ground structure.
What is a gantry structure?
A gantry is an overhead bridge-like structure supporting equipment such as a crane, signals, or cameras.
How much can a gantry crane lift?
They have spans of 140 metres (460 ft) and can lift loads of up to 840 tonnes (830 long tons; 930 short tons) to a height of 70 metres (230 ft).
Do you need a ticket to operate a gantry crane?
Therefore the majority of bridge or gantry cranes do not require a licence to operate as they are both remote or pendant controlled and are limited to 3 or less powered motions (hoisting, traverse and travel). The regulations do not define the extent of a powered operation.
What are the major advantages of overhead Travelling Crane?
What are the Benefits of Overhead Cranes?
- Increased Safety. Forklifts carry the risk of imprecise stacking, dropping goods as well as accidents (due to crashing). …
- Improved Load Control. …
- Avoid Floor Obstructions. …
- Improved Ergonomics. …
- Easy Lifting of Loads. …
29 июл. 2016 г.
How do you maintain an overhead crane?
Ensure there are no loose, broken, or damaged parts on the hoist, trolley, bridge, runway, or electric systems. Check that the wire rope is reeved and seated in the drum grooves properly. Verify that the bottom block is not twisted (no two lengths of wire rope should touch).
How do you use an overhead crane?
Centre the crane directly over the load before hoisting to avoid swinging the load.
- Do not allow anyone to ride on a load or hooks.
- Do not leave slings dangling from the load hook. …
- Do not raise loads higher than necessary to clear objects.
- Do not move or pass a load over workers.
What are different types of cranes?
Here are 7 crane types that are used commonly depending on the project, work objective and environment.
- Telescopic Crane. A telescopic crane offers a boom that has a number of tubes that are fitted inside each other. …
- Mobile Cranes. …
- Truck Mounted Crane. …
- Tower Crane. …
- Rough Terrain Crane. …
- Overhead Crane. …
- Loader Crane.
29 нояб. 2017 г.
What is meant by EOT crane?
Electric overhead traveling crane or EOT crane is one of the most common types of overhead crane, also called bridge cranes, which consist of parallel runways with a traveling bridge spanning the gap.
What is the arm called that extends from the fixed base of a crane?
Jib: the jib, or operating arm, extends horizontally from the crane. A “luffing” jib is able to move up and down; a fixed jib has a rolling trolley that runs along the underside to move goods horizontally.
What is a gantry hoist?
Gantry hoists are similar to ceiling hoists, the hoist motor traverses along an overhead rail, but rather than being fixed to the ceiling they can be semi portable or completely free standing.
What is the meaning of gantries?
1 : a frame for supporting barrels. 2 : a frame structure raised on side supports so as to span over or around something: such as.
What is a gantry CNC?
The gantry is the part of the CNC Router that moves along the x-axis. That’s what makes this machine a gantry style machine. The gantry allows the router to essentially float over the cutting surface. … The gantry needs to carry the z-axis, router, and the y-axis with all support pieces.