22/08/2019 0 Comments
Choosing the Right Crane for Your Project
Cranes play a significant role in construction projects and heavy equipment manufacturing. They help in the lifting, hauling and transportation of heavy objects. They are equipped with cables and pulleys and can be fixed on the ground or mounted on a vehicle. The operators control it from inside a cab using levers and button controls.
Selecting the right crane for your project may be overwhelming as there are so many options to choose from. Each is designed for a specific function or use. MN Truck & Crane Service Ltd. offers various types of mobile crane rentals with capacity ranging from 8.5 tonnes to 90 tonnes.
Here is an overview of commonly used cranes and their functions:
- Mobile Cranes - As the name suggests, They are primarily cranes on truck carriers and are highly versatile for a number of scenarios. The platform of these devices could be railed or wheeled. They are equipped with mechanically driven telescopic hydraulic boom sections and winches that control wire rope hook block for vertical hoisting. are designed to move around the job site easily. These can be mounted on movable tracks called crawler, which is designed to be used on all types of grounds, including soft terrains. With excellent counterweight control, they can typically lift 80 to 825 tonnes.
Mobile cranes can be classified into boom trucks and carriers. Telescopic boom cranes use hydraulic cylinders to extend and retract the boom. So, they are also called hydraulic cranes. Lattice boom is modular, where short boom segments are inserted manually. By inserting lattice boom extensions manually to the tip of the telescopic boom, the reach height can be further extended.
- Mobile Hydraulic Truck Mounted Crane
Mobile hydraulic cranes operate by hydraulic pressure which is driven by a diesel engine. The crane has several functions to control all movement of the crane components. This allows the load capacity to be safely monitored by the operator.Mobile hydraulic truck mounted cranes offer fast speeds on public roads as well as some off-road mobility. They also have a powerful lifting capacity which ranges from 50 to 1,000 tonnes.
- Boom Trucks
Boom trucks are a smaller version of hydraulic cranes which are mounted on truck mounted chassis with telescoping boom sections and winch lines with outriggers for stabilization. Lifting capacities range from 10 to 60 tonnes. Some are mounted with decks and others offer a swing cab similar-to a hydraulic truck crane. These trucks can travel highway speeds, are lighter in weight and offer easy operation on site with quick set ups and off-road capabilities. Boom trucks can offer a more efficient option when handling lighter loads. Todays boom trucks can reach a tip height of almost 175 feet with a radius of 125 feet, this makes a boom truck a great option for many applications. A tip from the owner, “there are a lot of variable factors when considering a crane”.
Basic Considerations For Crane Projects
Renting a crane is a cost-effective option as it eliminates unnecessary storage fees when the crane is not in use. It opens up a broader range of options to choose from for your project. Here are a few important factors you need to consider before renting one:
1. Understand Your Project Requirements
Each type of crane will have a unique set of specifications, capacities and functionalities. You need to understand your project requirements so that you can narrow down your options. Refer the load chart to understand the crane’s capabilities, structural strengths and dimensions. It features details like boom length, rated capacity and gross weight. Gross weight is the weight any crane can lift at a given radius. To determine this, the weight of the block and ball, the crane hook and the rigging cable must be deducted from the gross capacity.
Manufacturers’ charts give the exact specifications and dimensions of the machine. These graphs help in calculating the maximum lift within any given radius. If you get all this right, you can avoid selecting cranes with too little capacity and ensure your crane fits into your job site with no obstructions. This makes sure your job goes as planned.
2. Transportation of Equipment
Never overlook how the equipment will be transported. It is important to avoid roadways which are not sufficient for large loads or trailers. Otherwise, you may have to face accidents and traffic issues. Some cities and states may have certain laws for the transportation of heavy equipment.
3. The Conditions of the Construction Site
The terrain of the construction site also plays an important role in deciding the crane you should choose. The weather conditions, spatial constraints, degree of mobility and ground conditions of the site are significant factors. You can choose a crane based on these criteria.
For example, a carry deck Crane is better for projects which require flexibility and precise delivery in confined spaces