Case study: reducing energy waste to improve efficiency, save money, and increase sustainability

When Sandvik Coromant laid out ambitious goals for sustainability and energy efficiency, they realized that the air system in their South Carolina facility needed an upgrade. Working with Elevated Industrial Solutions, they were able to cut waste and enhance sustainable practices, all while reducing their overall energy bills.

About the client: Sandvik Coromant

Sandvik Coromant is a manufacturer specializing in metal-cutting tools used in machining applications. Established in 1942 in Sweden, this company is part of the larger engineering group known as Sandvik.

It’s an impressive company with over 100,000 customers worldwide. Sandvik holds more than 1,700 global patents and files 150 patents each year. The group specializes in customized machining tools and digitization; in manufacturing circles they have a well-established reputation for fast production and lasting quality. 

As a major global company, Sandvik Coromant leaders are aware of their significant impact on the environment. They are committed to sustainability and energy efficiency, which is why they needed the support of our air-system experts

The problem: wasted energy from the air system

Sandvik Coromant grew in numerous global regions, including South Carolina, mainly at the Westminster facility. 

The existing air system in Westminster had some issues. It was outdated and decentralized, leading to poor energy efficiency and overall air loss, causing the compressors to work overtime to meet the facility’s air needs. There was an issue maintaining consistent pressure, especially when the workload increased. The air within the system also had quality issues, reducing overall product quality and creating further needs for equipment maintenance. 

Energy consumption was a particular issue for the facility. Previous studies indicated that the air system was one of the biggest energy users for the entire facility. The company, however, had bold targets for sustainability; wasting that much energy was unacceptable.

Sandvik Coromant needed a partner who could evaluate their needs, plan and build an efficient system, and work with the company to maintain reliability, efficiency, and overall performance. They turned to Elevated, an authorized Kaeser distributor in the South Carolina area, to overhaul the air system and provide greater efficiency with superior performance.

Our solution: a smart, innovative air system

Using an air-study process, Elevated recommended a new primary air system and a smaller secondary system. 

The primary system would consist of four DSD-175 rotary-screw compressors and three TG 980 Secotec dryers. The team would also install a Sigma Air Manager (SAM) 4.0, which pulls operational data and enables stable pressure. To enhance efficiency, the team recommended increased storage and a new SmartPipe distribution system. These components and technologies would improve overall efficiency while significantly reducing wasted air. 

The secondary system would be used for extra machining and would consist of two SK 20 rotary-screw compressors. There would be a SAM for this system as well. 

The result: sustainability, savings, and efficiency

The original study estimated roughly $80,000 in annual energy savings for the facility. Even for a global manufacturing group like Sandvik, this would be a significant improvement. But in the end, the savings were $90,000 per year – $10,000 more than anticipated. 

In addition, facility managers can track usage and make adjustments thanks to reporting capabilities by the SAM unit. Using this critical information, managers and leaders can decrease pressure – as needed – for additional savings, all while delivering on the company’s promise to be more efficient and sustainable.

Exceed your goals with Elevated

Elevated helps you meet your company’s goals. We can increase the efficiency of your facility in eastern Michigan, western Ohio, and South Carolina. Our expert teams can install machines, conduct analysis, and provide additional equipment … just like they did at Sandvik Coromant.

We also offer preventive maintenance at each of our locations to ensure your facility never shuts down, operating at peak efficiency every day.

Special thanks to Kaeser for the article write-up!

How to find the right compressed air systems installer

Compressed air is a critical part of your industrial facility. Powering pneumatic tools, operating machines, and even filling tires, the compressed air system enables your facility to thrive and produce.

Whether you have decided to replace your existing system, upgrade, or expand to accommodate more production at your facility, you must work with the right installation team. 

The right installer is equipped and experienced so they can meet your exact needs. They’re familiar with your type of facility, meet rigid safety standards, and provide specific services that are ideal for your operation. 

Choosing the right air compressor installer may seem complex. But when you consider your specific needs and future goals, you can find a professional who is the ideal fit. 

Understands your facility and industry

While the principles of compressed air are fundamentally the same from facility to facility, there are differences in overall type and function. You must find a compressed-air expert who understands your goals and plans.

  • Are you planning to expand again in the next few years?
  • What equipment are you running?
  • What’s in the area (electricity, etc.)?
  • What do you produce?
  • Will your system include an outside location?
  • What’s your timeline?
  • What’s your budget?
  • How many staff do you have?
  • How big is your facility?
  • What are your goals?

Installers who have been in your industry typically understand what’s expected and may even have photos in a portfolio to show you. They’ll have recommendations of where drops should be, how long the project will take, and more. They may even be able to save you energy … which means saving you money.

Provides maintenance and repairs in emergencies

compressed air system

Eventually, your system is going to need maintenance. It’s easier to get on a schedule as you’re installing and starting up your compressed air system, especially as it helps protect warranties. It’s even better to know who to count on in emergencies — such as sudden issues with your compressed air system. Although Kaeser is known for its quality, even those machines can leave the company with unforeseen problems.

In addition, it’s good to know the company can handle just about any major brand of compressor like the Elevated team can.

Has great references

When you hire a new team member, you ask for references and contact information. You should do the same with your compressed-air installer. These references can come from different industries and specializations, but it’s best if these references are from a similar niche or industry.

For example, if you need air compression for powder-coating operations, it helps if at least one of these references is from the powder-coating industry. 

Considers cost savings vs. value

We all need to save money, but it’s important to consider the cost and value of different compressed-air systems. The installer you select should offer competitive pricing, but their services should include money-saving (and money-making) aspects like energy savings, productivity enhancement, and a reduced risk for expensive repairs. For example, Elevated provides various piping to bring down cost without sacrificing quality.

Suggests system audits first

If you’re having a system replaced, some installers recommend you have a complete system audit before removing your current compressed-air system. The U.S. Department of Energy recommends finding an installer who is familiar with assessment services, including walk-through evaluations, system assessments, and system audits. Sometimes, they simply need to add more machines or a different machine.

An audit or just a walk-through could target ways to improve your system, helping to avoid the expensive cost of a new air compression installation. 

Handles custom engineering

Sometimes, facilities have constraints, such as a dirty environment or space limitations, that need a different approach: custom custom-engineered solutions. It’s designing an installation approach from scratch, boxed, and ready to be delivered. It’s typically turnkey with little to no assembly required. Everything is built to specifications and tailored to exactly what you need. In return, your facility gets reliability, easier maintenance, and better energy efficiency.  

Elevated install teams

Elevated Industrial Solutions is the right installer for a variety of systems. We offer a full host of compressed air services, including system audits, installations, emergency repairs, and preventative maintenance. Our team surveys the site, gets ideas, and discusses needs before putting together a proposal.

But it doesn’t end there. We communicate with your team to ensure they know the details of the project without being overburdened.  

Let us help your company meet your air goals.

Transair piping

If you are installing, modifying, or upgrading a compressed air system, you may consider a variety of different materials for your piping. Options include black pipe, galvanized steel, copper, and stainless steel. 

Before making a decision, consider the benefits and drawbacks of aluminum piping. Strong, versatile, and reliable, aluminum piping can bring a fast installation for compressed air systems and better long-term performance for your total operations. 

It’s not always the right choice, but for many facilities, aluminum piping is a great option. SmartPipe (by Kaeser) is always a fantastic option. Kaeser is known for their quality engineering. But if SmartPipe isn’t available, we recommend Transair Aluminum Pipe.

Advantages of Transair

Like SmartPipe, it’s easy to connect and modify, making expansions for your compressed air system and facility faster and less expensive. The Transair push-to-connect system creates a firm hold to make the pipes leak-free. It connects with other piping, too. Plus, Transair comes in a variety of sizes, available in 1/2″ to 8″, and includes a warranty.

Unlike SmartPipe, Transair is readily available and may cost less than SmartPipe. (Contact us for details.)

Advantages of aluminum pipes

Aluminum piping brings a variety of advantages that make it ideal for numerous situations. When you need an affordable, durable, long-lasting system that can deliver reliable air compression, aluminum is often the ideal solution.

Aluminum is lighter than most metals. The mounting requirements and time to install are less than other heavier materials. 

Aluminum in general is less prone to corrosion, even compared to stainless steel. Even if there is a moisture trap (which we regularly install on air systems) there will be some water in the system, creating the right conditions for corrosion. This is less of a concern with aluminum. 

Disadvantages of aluminum piping for air systems

Although it remains one of the best choices for air systems, this pliable metal does have a few disadvantages. The upfront costs may be higher compared to other metals, which may cause some facilities to choose a different material. (But do your research; aluminum can bring long-term savings when installed correctly.) 

There can also be more thermal expansion and contraction, so controlling facility temperatures is critical. Although it meets the needs of most facilities, the pressure rating for some aluminum products may be lower as well. 

Your source for high-quality aluminum piping

Transair is a leader in the air-pipe industry. The company has a vast collection of lightweight, strong, corrosion-resistant pipes that come in a variety of sizes. These products bring excellent longevity and typically require less maintenance on compressed air systems.

When choosing your piping, you may need the guidance of an experienced professional to ensure the right pipes for your facility. There are a variety of sizes. (You should get the right size for your compressed air system.) Our installation team can help you determine the best options, add drop points, and more. We make it easy from beginning to end (including start-up).

Contact Elevated Industrial Solutions for expert service on your next installation for compressed air systems. We proudly serve western Ohio, eastern Michigan, and South Carolina. We’ll help you select the right pipes for your specific air requirements, and we’ll be available for installation and long-term maintenance.

Preventive maintenance versus shutdown costs

A breakdown in your air compression system can be a nightmare. It’s worse when issues could’ve been easily taken care of during a preventive maintenance visit.

Elevated Industrial Solutions had an emergency call from one manufacturing company that lapsed in maintenance and was down for more than four hours costing an estimated $40,000. Now, they’re a customer with planned maintenance visits from experienced technicians.

What is the actual cost of a shutdown, and how does it compare to the cost of preventive routine maintenance?

Shutdowns cost America

preventive maintenance vs. shutdown

In general, machine failure costs American companies a lot of money.

Precognize indicates that “Every year, Fortune Global 500 (FG500) manufacturing and industrial firms lose approximately 3.3 million hours of production time to machine failure, and almost $1 trillion through unplanned downtime, amounting to an economic impact of $864 billion or 8% of their annual revenues. The average large plant loses 323 production hours each year, amounting to $532,000 per hour, or $172 million per year.”

What is the potential cost of an unplanned shutdown? 

The cost of an unexpected shutdown depends on many factors: the number of employees, the daily output, the length of the shutdown, the cost of repairing the problem, and how much you’re paying your workforce (to be unproductive). 

Oden Technologies, a manufacturing technology company, estimates that downtime costs every factory at least 5% in yearly productivity, while some large companies see losses as high as 20%. So, factor in your yearly productivity, and depending on your size, subtract anywhere from 5% – 20% from your bottom line.

Can you afford to lose that?

Other impacts when a factory shuts down

Of course, there are hard costs (lost revenue or added expenses) when your facility has an unplanned shutdown. But there are other costs, too.

There’s the cost of potentially losing customers – losing additional revenue. If your facility runs a tight production schedule or has to be working 24 x 7, customers may complain and leave you. Regaining that trust may be hard to do, especially if your customers needed you to complete that work on time.

assembly tools

Employees may become dissatisfied, especially if unplanned shutdowns happen regularly. Dissatisfied workers typically leave, and in this tight labor market, you may have difficulty replacing them. Then there’s the cost of retraining workers. Also, if you pay workers by the hour to be productive, you may be shortchanging employees’ pay.

With some facilities, it’s possible you could see safety issues if suddenly everything comes to a halt without notice. Safety issues could hurt your workers and create workers’ compensation claims as well as fines. Safety records are important to many manufacturing and industrial companies, especially in recruiting and keeping workers. (It’s also just the right thing to do!)

The compliance you must meet for your facility – for state and federal laws or certifications such as ISO – could be in jeopardy. That could result in losing your accreditation or fines for your company. Losing accreditation and collecting fines could hurt your brand, causing customers to leave.

It’s all interconnected.

What are the costs of maintenance? 

Regular compressor maintenance is must cheaper than unexpected shutdowns.

The larger your system, the more costly it will be to maintain, which is a simple fact of compressor ownership. But just how much will it cost? The typical estimate is that compressor maintenance will cost somewhere between 5% and 10% of the expenses tied to the compressor. Some sources say more. Nexflow, for example, says maintenance is roughly 12% of the lifetime cost of an air compressor. 

Numerous factors, though, will impact the total costs. These include the type of compressor, the number of active compressors, the length of pipes and hoses, the number of connections, usage frequency, and more. 

Overall, if you know how much you will spend on your air compressors every year, you can estimate the cost of maintenance. (Again, 5 to 10% of annual compressor costs.)

Remember: planned shutdowns are far better than unexpected ones

Taking all factors into consideration, it’s clear that routine maintenance and even planned shutdowns for that maintenance are far better than unexpected repairs. Talk with experts on how to keep your facility running (using rental equipment, mobile compressors, etc.) as the equipment is maintained.

Service techs to help

Routine maintenance, completed by industry professionals, will ensure your system works efficiently for years and will also help you prevent costly shutdowns for your system. Since Kaeser requests various maintenance to keep your warranty, it may help to have these compressed air service technicians keep on top of all maintenance that has to happen for your machine and facility.

Elevated’s service technicians are certified in various compressors and service all major brands. And we’ll never recommend anything that is unnecessary or jeopardizes your system.

What is CAGI … and why is it awesome?

If you’re a plant or facilities manager, you may already know all about the wonders of CAGI, but assuming you’re new to it CAGI has changed the world of compressed air.

What is CAGI?

CAGI stands for the Compressed Air and Gas Institute. On the CAGI website, it indicates it’s “the united voice of the compressed air industry, serving as the unbiased authority on technical, educational, promotional, and other matters that affect the industry.” It’s an organization that tests and standardizes information to make it easier to understand.

Why is CAGI awesome?

CAGI verifies compressor claims using a third-party testing program. According to CAGI, the program provides you with “reliable and verified performance data for rotary air compressors (5-200HP) and refrigerated air dryers (50-1000 scfm).”

And CAGI compares data, making it easier to read and understand one compressor vs. another through an efficiency rating value on its compressor data sheets – isentropic efficiency.

What is isentropic efficiency?

Utilizing isentropic efficiency is similar to using a Monroney window sticker when purchasing a new vehicle. For example, the Monroney sticker explains the projected miles per gallon of the vehicle, price, features, and other useful information that helps assist buyers when purchasing a new vehicle.

Isentropic efficiency incorporates operating pressure and greatly simplifies the process of comparing the efficiencies among several like-sized compressors each having slightly different full-load operating pressures. For example, for the same horsepower compressors, one sheet may show 125 psi operating pressure and another may show 130 PSIG, so comparing isentropic helps equalize the comparison. This video, developed by CAGI, explains how specific power is converted to isentropic efficiency.

Elevated can help provide CAGI data

If you’re considering an air compressor, your sales engineer can provide information about it, including comparing it to other compressors. For more information, talk with us about your compressed air system needs. We have specialists available to assist you with calculations, installation, pricing, and more.

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