How To Choose An Overhead Crane? - dgcrane

Overhead Crane, also known as Electric Overhead Traveling (EOT) Cranes are widely used in various industries for lifting and transporting heavy loads. There are four main types of EOT cranes, including single girder EOT cranes, double girder EOT cranes, underslung cranes, and workstation overhead cranes. In this article, we will discuss each type of crane, compare their differences, and explain how to choose an overhead crane.

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Single Girder EOT Crane

As the name suggests, single girder EOT cranes have one girder or beam that supports the load. These cranes are generally used for light to medium-duty operations and are ideal for small workshops, warehouses, and factories. Single girder EOT cranes are cost-effective, easy to install, and require minimal maintenance.

Double Girder EOT Crane

Double girder EOT cranes have two girders or beams that support the load. These cranes are designed to handle heavy-duty applications and can lift up to 350 tons. They are commonly used in steel plants, power plants, shipyards, and other heavy industries. Double girder EOT cranes provide greater height and span capabilities than single girder cranes, making them more versatile for different types of lifts.

Underslung Crane

Underslung cranes or underhung cranes, are suspended from the roof structure. These cranes are mainly used in areas where column-free space is required, such as assembly lines, packing areas, and warehouses. Underslung cranes are compact, easy to install, and fully customizable to meet specific requirements.

Workstation Overhead Crane

Workstation overhead cranes are designed for light-duty applications, such as lifting and transporting materials in assembly lines, workshops, and warehouses. This type of crane has a load capacity of up to 2 tons and a span length of up to 30 feet. It is highly maneuverable, provides precise load positioning, and requires minimal space for installation.

How to Choose Overhead Crane?

When selecting an overhead crane, it is important to consider several factors such as load capacity, span length, lift height, and application requirements. Here are some guidelines to help you choose the right overhead crane for your specific needs:

• Load Capacity: Choose a crane with a suitable load capacity that can handle the weight of the load.
• Span Length: Choose a crane with a suitable span length to accommodate the width of the area where the load needs to be lifted.
• Lift Height: Ensure that the crane has a sufficient lift height to reach the required height of the load.
• Application Requirements: Consider the specific requirements of your application, such as the frequency of use, duty cycle, and operating environment.

DGCRANE: Your Trusted Overhead Crane Manufacturer!

DGCRANE is a renowned Chinese manufacturer with over ten years of experience in exporting Electric Overhead Traveling (EOT) cranes. We offer a wide range of cranes, including single-girder EOT cranes, double-girder EOT cranes, underslung cranes, workstation overhead cranes, and more. 

Customized Design Services

At DGCRANE, we understand that choosing the right crane is critical to the success of any lifting operation. That’s why we offer customized design services to meet our customers’ unique needs. Our team of experienced engineers works closely with customers to design and manufacture cranes that meet their specific requirements. With advanced software tools, we can simulate and optimize crane designs before they go into production.

Exceptional after-sales maintenance and support services

DGCRANE is committed to providing comprehensive after-sales maintenance and support to you. We provide regular maintenance checks and preventive measures to ensure cranes continue to function optimally. And we offer a range of spare parts and accessories, ensuring you can easily replace faulty components. Besides, our engineers are well-trained in resolving any problems that may arise. With this level of comprehensive after-sales support, cranes will continue to operate smoothly and efficiently for years to come.

Expertise in Wheel Production

In addition to our expertise in crane manufacturing, DGCRANE is also a specialist in wheel production. We produce high-quality wheels for cranes, trolleys, and other industrial applications. Our wheels are made from durable materials and designed to withstand heavy loads and harsh operating conditions. To learn more about our wheel production capabilities, visit our website at https://www.dgcranewheel.com/.

Conclusion

Choosing the right crane for your specific application is crucial to ensuring smooth and efficient lifting operations. At DGCRANE, we offer a wide range of cranes. Our customized design services and comprehensive after-sales support ensure that our customers get the crane that meets their unique needs. Contact us today to discuss your crane needs and find out how we can help you achieve your lifting goals.

Table of Contents

Introduction

Electric hoists are vital parts of overhead crane systems in factories, warehouses, and building sites. They lift and move heavy stuff, making work quicker and safer. Picking the right electric hoist is key to fit your factory’s needs, keep workers safe, and make work smoother. This guide shows how to choose the best electric hoist for overhead cranes without naming specific brands. We’ll talk about types, important factors, and steps to make a smart choice for your work.

Understanding Electric Hoists

Electric hoists are machines that lift heavy things using a motor. They have parts like a motor, gearbox, load chain or wire rope, and a control system. In overhead cranes, hoists lift and move things like steel beams, machines, or pallets. They are strong, dependable, and made for tough work places. Benefits include fast lifting, less hand work, and safe handling of heavy loads, making them super important for factories.

Types of Electric Hoists

Chain Electric Hoists

Chain electric hoists use a metal chain to lift loads. They are small, light, and simple to use. Benefits include lower price, easy to move, and good for tight spaces. They work great for lifting lighter loads (0.5 to 10 tons) in workshops or warehouses. They are used for moving tools, parts, or small machines. But they can’t handle super heavy loads or tough conditions like dust or water as well.

Wire Rope Electric Hoists

Wire rope hoists use a steel cable wrapped around a drum to lift loads. They are tougher and last longer than chain hoists. Benefits include lifting heavy loads (1 to over 250 tons), exact control, and standing up to rough places like heat or dust. They are used for lifting big machines or steel in factories or shipyards. Downsides are higher cost, bigger size, and trickier upkeep.

FEM Standard Hoists

FEM (European Federation of Materials Handling) standard hoists follow strict global design rules. They can be chain or wire rope hoists but are made for top performance and safety. Benefits include saving energy, being quiet, and lasting a long time. They are used in modern factories needing safe, reliable lifting. The downside is higher cost because of fancy features and strict rules.

Key Factors to Consider

Choosing the right electric hoist means looking at several things to match your factory’s needs:

Load Capacity

The hoist must lift the weight of your loads, including tools like slings or hooks. For example, lifting a 10-ton machine needs a hoist rated for at least 10 tons. Always add extra safety room to avoid overloading.

Suspension Type

Hoists can be fixed (stuck in one spot) or trolley-mounted (move along a crane’s beam). Trolleys can be pushed by hand, geared, or motor-driven. Pick based on whether the hoist needs to move or stay put.

Lift, Reach, and Headroom

Lift is how high the hoist can raise a load. Reach is how far it moves along a crane. Headroom is the space needed above the hoist. Measure your workspace to make sure the hoist fits and lifts high enough.

Operation Type

Manual hoists are cheaper but slower, good for light, rare lifts. Powered hoists (electric or air-driven) are faster and better for frequent or heavy lifting. Choose based on how often and how heavy you lift.

Lifting Speed

Hoists have single-speed (one speed), two-speed (fast and slow), or variable speed (adjustable). Variable speed gives more control for exact tasks, like lining up parts on a work line.

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Power Supply

Check if your factory has single-phase power (for smaller hoists) or three-phase power (for heavy hoists). Make sure the hoist matches your power to avoid setup problems.

Control System

Hoists use pendant controls (wired or wireless) to work. Look for safety tools like emergency stop buttons, load limiters (to stop overloading), and heat protection (to keep the motor from getting too hot).

Dimensional Constraints

Think about headroom (space above), side clearance (space beside), and end approach (space at crane ends). A low-headroom hoist is great for small spaces.

Duty Cycle

Duty cycle is how often and how hard the hoist is used. ASME and HMI standards rate hoists from H2 (light use) to H5 (heavy, nonstop use). Pick a hoist that fits your workload to last longer.

Environmental Conditions

Factories can be dusty, wet, or hot. Choose hoists with rust-proof coatings or sealed motors for tough places. For extreme spots, like chemical plants, pick explosion-proof hoists.

Safety Features

Look for load limiters, brakes, heat protection, and emergency stops. These stop accidents, like dropping loads or breaking the hoist, keeping workers safe.

Selecting the Right Hoist: A Step-by-Step Process

Follow these steps to pick the best electric hoist:

Step 1: Check Load Needs and Duty Cycle

Figure out the heaviest load weight and how often the hoist will work. For example, lifting 5 tons every day needs a higher duty cycle than lifting 2 tons sometimes.

Step 2: Look at Work Environment and Space

Check the factory’s conditions (dust, water, heat) and measure lift height, reach, and headroom to make sure the hoist fits.

Step 3: Pick Hoist Type Based on Load and Use

Choose chain hoists for lighter loads in clean spaces or wire rope hoists for heavy loads in rough places. Think about FEM hoists for fancy features.

Step 4: Choose Power and Control Systems

Make sure the hoist’s power (single or three-phase) fits your factory. Pick a control system with safety tools like load limiters.

Step 5: Check Size and Setup Needs

Confirm the hoist fits your crane and workspace. Look for low-headroom options if space is tight.

Step 6: Look at Upkeep and Warranty

Choose hoists with easy upkeep and good warranty terms to save money and reduce downtime.

Additional Considerations

Cost and Savings

Electric hoists have different prices. Chain hoists are cheaper but only for lighter loads. Wire rope and FEM hoists cost more but lift heavier stuff and last longer. Think about savings from faster work and less fixing.

Energy Use and Noise

Modern hoists, like FEM models, use less power and are quieter. This saves money on energy and makes a nicer work place, especially in busy factories.

Custom Options and Support

Some hoists can have special features like anti-sway systems or data trackers. Good support, like spare parts and tech help, keeps your hoist working well.

Maintenance and Safety

Importance of Regular Upkeep

Regular care keeps hoists safe and working. Grease chains or ropes to reduce wear. Check motors, gearboxes, and controls for problems. Test safety tools like brakes and load limiters. Follow a care schedule (like every six months) to avoid breakdowns.

Operator Training and Safety Rules

Workers must learn to use hoists safely, following rules like ASME B30.16. Training covers using controls, checking loads, and wearing safety gear like helmets. Regular checks ensure safety rules are followed, stopping accidents.

Company and Product Introduction

About Nante Crane

Shaoxing Nante Crane Equipment Co., Ltd., in Shaoxing City, China, is a world leader in cranes and parts. They serve over 50 countries with 150+ partners and 5,000+ customers. Known for new ideas and quality, Nante has 12 invention patents and follows standards like EN ISO, FEM, and CMAA.

Product Range

Nante offers many electric hoists:

• NHA Series: European standard wire rope hoists (2t-63t) for heavy lifting.
• NHC Series: Wire rope hoists (1t-20t) with high efficiency and small design.
• CD/MD Series: Classic wire rope hoists (1t-20t) for dependable work.
• NCHA/NCHC Series: Chain hoists (0.25t-25t) for flexible lifting.
• NW Series: Special hoists for unique needs.
• Explosion-Proof Hoists: Safe for risky places.

Innovation and Quality

Nante works on research to make hoists with features like anti-sway and data logging. Their products meet global standards, ensuring safety and toughness for factory use.

The company is the world’s best Electric Overhead Crane(vi) supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.