Monday, May 3, 2010

 

Building Construction Equipment and Machines

Building construction equipments vary from the heavy, large equipment to the mobile, lighter equipment. Hydraulic excavators, cranes, and concrete mixers are among the basic, hardworking equipments that any building construction company cannot function with.

Hydraulic Excavators (also known as diggers or earth movers) are extremely large equipments utilized for multiple operations. They are utilized in applications such as construction of large structures and roads as well as in the mining industry. As one of the first equipment to be applied for readying the construction place, excavators level the land by burrowing and cutting ground. Hydraulic excavators are very functional for certain confined work sites which are less receptive to traditional construction equipment.

The excavator is made up of four basic parts-hydraulic cylinders, arm, bucket, and boom-all involved in loading and excavating. Interestingly, their movement is similar to that of a human arm. The boom acts similar to the upper part of an arm, together with shoulder and elbow. The excavator's arm's movement is likened to a human arm beginning at the elbow to the wrist. And, the bucket is likened to a cupped hand. Hydraulic excavators consists of loaders, tippers and crawlers (bulldozers). A crawler is a very robust tractor fitted with a dozer blade. Most excavators feature crawlers since they're more functional for operations on mud-covered, rough terrains as compared to wheeled ones.

Cranes are equipped with pulleys and levers to haul up and lower sizeable weights. Basically, a crane has a telescopic boom or steel truss that hoists its portable base. Both the levers or pulleys lift the boom, and the boom typically has a hook hanging on it. There are several kinds of cranes including loader cranes and tower cranes. Loader cranes feature hydraulic power booms attached onto trailers. Booms load up materials onto the trailer and may be collapsed after use. Certain types of loader cranes feature telescopic boom for easy operation. Tower cranes are usually the tallest of all cranes. However, they do not feature portable base and parts need to be assembled. These cranes are largely applied to build tall structures and skyscrapers. Primarily exploited for the cutting down of workload, cranes can also perform lots of jobs including moving, digging and creating.

Concrete mixers or processors are powered equipment used for mixing cement, water, sand, and gravel to create concrete. A concrete mixer is made up of a rotating drum, a motor, and a trough. The elements applied to create concrete whirls around thus mixing everything consistently. Concrete processors come in various sizes from the extremely large industrial mixing truck to the smaller, handy concrete mixer. A small concrete mixer is ample for smaller amounts of concrete, up to 2 cubic yards. It's normally run by electricity and features a wheeled base for easier transfer. Its drum can be tilted at an angle so that concrete can be easily dispensed onto the spot that needs to be cemented. A large industrial concrete mixer truck on the other hand, is applied for mixing as well as carrying big amounts of concrete for use on a construction place. These mixers are computer encoded for constant, accurate mix.

Types Of Construction Equipment And Their Uses

Construction equipment range from the very heavy equipment to the portable and mobile lighter equipment, some of them with a precise description of their functions are detailed below.
Engineering equipment with a front bucket/shovel and a small backhoe in the rear combined with a tractor is known as backhoe loader. It is mostly used in small construction sites and in urban engineering such as fixing city roads. A crawler, which is very powerful and attached with a blade, is called a bulldozer. Even though any heavy engineering vehicle is known as bulldozer, it is actually a tractor with a dozer blade. Combat engineering vehicles are used for engineering work in the battlefield and for transporting sappers. They are mostly armoured vehicles.

A compact excavator is a wheeled or tracked vehicle with a backfill blade and swing boom. It is also known as mini excavator. The functions and movements of the machines are carried out by transferring hydraulic fluid. This makes a compact hydraulic excavator different from other construction equipment. To compact gravel, dirt, asphalt and concrete in construction work and road laying a road roller which is also known as roller-compactor would be used. A motorized cultivator with a rotating blade to work in the soil is known as rotary tiller. They are either drawn behind a tractor or self-propelled. A crane is a derrick or tower equipped with pulleys and cables for lowering and lifting materials. The cranes used in construction industry are mostly temporary structures. Dragline excavation systems are heavy equipment mostly used in surface mining and civil engineering. The smaller type of dragline excavator is used for port and road construction. The larger type dragline excavator is used in strip-mining operations for coal extraction.

In the building industry, to make foundations, a drilling machine is used. It is also used in oil wells and water wells. An excavator commonly known as a digger is an engineering vehicle, with a cab mounted on a rotating platform or pivot, and a backhoe on top of an undercarriage with wheels or tracks. In untamed regions which are being reclaimed for construction, a feller buncher, a machine having an attachment, which fells trees, is used. A forklift, lift truck or forklift truck is an industrial truck used to pick up and transport heavy material using steel forks under the material to be lifted. The most common usage of a forklift is to move materials stored on pallets. A loader also known as a bucket loader, front-end loader, scoop loader, shovel, or front loader is a type of tractor using buckets, which can be tilted to lift and move material.

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