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Safety

What Is Load Sway and How Can We Prevent It?

What Is Load Sway and How Can We Prevent It?

Chris Williams
Global Technical Support

A load, hanging stationary from an overhead crane hook, naturally begins to swing like a pendulum when the trolley above starts to move or comes to a stop. This is load sway.

For decades experienced crane operators have controlled load sway by timing crane movement, carefully driving into the sway and centering the crane over the load. But regardless of his or her skill level, a crane operator is often left with little choice but to wait for a load to stop its swing before setting it down.

Secret Safety Features of Hoist Inverters

Secret Safety Features of Hoist Inverters

Greg Williams
Business Development Manager, Konecranes Electrical Factory of North America

These programmed crane safety features operate in the background to elevate safety and productivity

Hoist inverters, or variable-frequency drives (VFD), are the secret to safety for crane hoists. While not technically a secret, hoist inverters and their software do run quietly in the background, making crane operation easier, smoother and safer, even for less experienced operators.

What Is a Limit Switch and Why Does It Matter?

What Is a Limit Switch and Why Does It Matter?

Casey Storer

The role of the limit switch in promoting overhead crane safety

A limit switch is a critical component of overhead crane safety. Limit switches are electromechanical devices that regulate everything from household appliances to industrial machinery. And for an overhead crane, they provide solid, established points of reference for maintaining efficiency, reliability and safety standards.

What Is Dynamic Braking?

What Is Dynamic Braking?

Brandon Lyndall
Global Specialist

This braking alternative takes advantage of variable frequency drives to control hoist and other crane motions

An alternative and complement to electromechanical braking, dynamic braking uses magnetics and the interplay of variable frequency drives (also known as inverters) and AC motors to slow and stop hoists and bridges.

Dynamic braking offers a variety of benefits over electromechanical braking alone. For example:

What Is Load Float?

What Is Load Float?

Jim Suchor
Area Sales Manager, Central USA Workstation Lifting Systems

Improving the efficiency, safety and ergonomics of material handling

Load float is a capability of workstation air balancers that enables operators to safely, ergonomically and efficiently conduct repetitive, high-cycle material handling tasks. Especially helpful in assembly operations, the load float feature enhances operator movement and promotes precise load positioning, which is particularly beneficial for lifting and placing fragile items.

How do overload protective devices work?

How do overload protective devices work?

James Lang
General Manager, Konecranes Training Institute

Overload protection is a reliable way to elevate safety.

Today’s pressure to achieve ever-increasing productivity leads to ever-expanding demands on your crane equipment. Now, more than ever, it’s important to protect your crane and your employees from dangerous overload situations.

Konecranes Service Provides Tips on Manufacturing Workplace Safety

Konecranes Service Provides Tips on Manufacturing Workplace Safety

Matt Ghiloni
Health, Safety and Environment Manager of Service for U.S. Central Area

Workplace safety depends on several factors, from identifying risks, to avoiding complacency, to good housekeeping

Konecranes customers often remark on and compliment our service technicians for attention to identifying and mitigating workplace safety issues when they perform overhead crane service and repair at their manufacturing facilities.

Going Above and Beyond: How Inverters Are Improving Crane Safety & Performance

Going Above and Beyond: How Inverters Are Improving Crane Safety & Performance

Chris Williams
Technical Support Engineer

Over the past 25 years, the popularity of inverters has continually increased along with their ability to improve crane safety, performance, and service life. In fact, they have become so prevalent in recent years that I’ve noticed a significant drop in the use of contactors, which, as many of you may know, used to be the industry standard for controlling crane movements. Anymore, I only see contactors used instead of variable-frequency drives (inverters) for very specific applications. They are an endangered species that is becoming rarer and rarer every day.

Overhead Crane Training Requirements

Overhead Crane Training Requirements

James Lang
Training Manager, Konecranes Training Institute

Operator error leads the list of contributing factors in overhead crane accidents. Thus, overhead crane training is a key concern for industries that depend on cranes.

Overhead crane accidents exact a substantial cost in human and financial terms. An analysis of 249 OSHA-reported crane accidents in the 10-year period from May 1, 1997, through April 30, 2007, reveals an estimated impact of more than $500 million in economic loss, along with 133 injuries and 133 fatalities.

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