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5 Reasons Why Your Business Needs Sheet Metal Rolling Machine?

Jul. 14, 2025

5 Ways Roll Forming Can Help Lower Sheet Metal Forming Costs

Roll forming is one of the most efficient and cost-effective methods of sheet metal forming.

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However, it isn’t free. So what major factors affect the cost of roll forming? (Hint: Your design choices play a big part in it.)

Want to Lower Sheet Metal Forming Costs? 5 Ways Roll Forming Can Help

Think of sheet metal forming costs in five ways:

    • Setup Time – The amount of time it takes to insert and remove the roll tools from the machine
    • Run Speed – The speed at which you can feed metal through the machine
    • Materials – The raw materials needed for the project
    • Value-Added Work – Secondary operations built into the roll forming line
    • Packaging – Ensuring parts won’t get damaged during shipping

Here is a closer look at each factor along with an explanation of how they affect roll forming costs. Understanding these three aspects will enable you to make the most cost-effective decision.

Setup Time

Setup time refers to the amount of time it takes to put the roll tools into the machine and then take them out. This time will vary based on the complexity of the shapes you’re producing, which relates directly to the number of steps required for tool assembly.

The clock starts when you retrieve the roll dies from storage. Facility organization is the most important factor in retrieval speed - if there’s a repeatable method and clear working space, retrieving roll dies is simple. However, if the plant is cluttered and the workers are disorganized, time will most certainly be wasted.

Inserting the roll dies into the machine is the next hurdle. This time varies depending on the availability of mechanical aids (cranes, hoists) or the number of people used to move the process along.

Lastly, there are multiple components within a roll form machine that affect setup time.

  • Pre-punch die design - can have a large impact whether you’re doing multiple small punches or using a large die to do a lot of work in one hit.
  • Product shape definition - the complexity of a shape influences the number of roll stations and die spacers needed to form it.
  • Cut-off die design - a pure “shear” cut-off, a slug cut-off that produces a scrap “slug” between parts, or a combination cut-off and punching die all have different setup times.

To fully minimize setup time, Dahlstrom deploys multi-person “pit crews” to assemble and disassemble each machine. We also use a consistent assembly technique and our facilities are strictly organized.

As with real pit crews in NASCAR, we seriously consider any downtime a major loss for the customer.

Run Speed

Run speed is the rate at which you can feed a strip of metal through the machine.

Once you have the roll dies in place and the steel loaded up, a roll form machine will run at a consistent, rapid pace. The faster it runs, the cheaper the components.

However, there are of course several different factors that influence run speed.

  • Machine’s speed limitations – Just like cars, some roll form machines are initially built to run faster than others.

  • Number of roll dies in the sequence – If a machine only has ten roll die stations, each station is taking 1/10 of the work. In that case, each station is doing more work than a machine with twenty stations, which would only take 1/20 of the work. The less work each station has to do, the faster the metal can run through the machine and still produce a good, stress-free part.

  • Roll die diameter – If you remember your high school physics lesson about tangential velocity, you'll understand that larger diameters result in faster run speeds, making them cost effective.

  • Length of the final product – Very short parts take longer to run through a roll form machine. This relates to the time it takes the flying cutoff die carriage to return to the start position before it must accelerate and cut off the next part. Every time the die cuts off a piece of metal, it has to retract back and accelerate to punch the next one. This is why a short part can become the limiting factor.

  • Pre-punch strokes – Since the metal strip needs to stop momentarily to receive its punched features, the more features that can be punched per stop, the faster the parts will run. Dahlstrom die designers make sure punched parts stop for the least amount of time. “Slack loops” in the coil strip between the pre-punch press and the roll forming line allow the roll tools to run continuously… but the loops can only take up so much slack!
  • Unloading time – If a part is extremely heavy or long, it will require mechanical assistance to move from the machine. This can slow the process down as the machinist waits for each piece to be moved.

Materials

Materials make up the bulk of sheet metal forming costs. Raw materials can be anywhere from 40-80% of the final cost.

The cost of a material depends on three factors: material thickness, market cost, and its scrap factor.

A thin, inexpensive material (like thin carbon steel) can take up 40-50% of the cost. If the material is heavy and expensive (copper, bronze, stainless steel), it reaches up to 80% of the total price.

The great thing about custom roll forming is that it produces little scrap - on average, only 0.5 - 3% scrap is produced. This makes it very cost effective, and there won’t be as much monetary or material waste once you buy the materials.

Knowing how critical raw material cost is, Dahlstrom is constantly watching the world metal markets to ensure we take the optimal action for any customer’s supply pipeline.

Value-Added Work

Secondary operations are processes that can be performed on roll formed parts after they’re cut to length to add special features that improve functionality for the end user. These operations are often performed directly after the roll forming process (near-line), but they can also be done offline (in-house).

Some roll forming suppliers offer certain secondary operations for free if the time it takes to perform the operation is equal to or less than the time it takes for the next formed part to exit the machine. This can be a great way to save money.

Here are some examples of secondary operations for roll forming:

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  • Additional punching and notching
  • Tight-tolerance end forming/resizing
  • Kitting shipments with other components
  • Minor assembly of mating parts

Packaging

Packaging is often underestimated but plays a crucial role in ensuring supply chain integrity. It also represents 3 to 5% of your parts’ cost. Neglecting proper packaging can result in time-consuming unloading/unboxing and repeatedly damaged components, leading to unwanted costs and delays.

Special consideration should be given to custom roll-formed parts and long components, as they may require unique packaging solutions. Manufacturers familiar with roll form sheet metal fabrication will address these requirements from the outset. It is important to note that highly-custom packaging or selecting odd shipping sizes will impact costs, and manufacturers will take this into account when providing a final quote.

When designing custom packaging, several factors should be considered:

  • Method of removing roll-formed shapes from the box: Determine whether they will be pulled from the top or slid out from the end.
  • Maximum weight limits for packages within your facility.
  • Whether the packages will fit in your storage racks.
  • Whether metal components require protection from corrosion during transportation and storage.
  • Explore the possibility of designing reusable packaging.

Taking these factors into account will greatly contribute to the success of your project.

HOW TO REDUCE SHEET METAL FORMING PER-PART COST

Overall, custom roll forming is one of the least wasteful and most affordable metal manufacturing processes available. We might be a little biased – but the facts speak for themselves!

To learn more about how you can reduce your per-part cost, download the free e-book below:

(Editor's note: This article was originally published in January and was recently updated.)

5 Benefits of Rolling Mills for Small Manufacturers - Steefo Industries

Rolling mills come with various constructions and are an integral part of any small industry in India. No matter the size of the rolling mill machinery, their performance remains the same in handling heavy metals. You might wonder what a rolling mill is and how it is profitable for small manufacturers? Read on to learn more so that you can make an informed decision.

What Are Rolling Mills?

Rolling mills are a type of metal forming machinery. They help process various metals through one or more rolls to reduce or create uniform thickness or imprint a design.

All rolling mills have at least one pair of heavy rollers. Depending upon your use and requirement, you can opt for mills with more than one pair of rollers that are also heavier to mould high-density metals. The range of sizes the rolling mills offer makes them profitable for small manufacturers.

How Does a Rolling Mill Work for Manufacturing Units?

Rolling mills can help alter the physical properties of a metal sheet. The purpose of a rolling mill is to provide a uniform thickness and consistency. These rollers are constructed with a strength that can easily squeeze and compress hardened pieces of metal as they are passed through a pair of adjoining rollers. 

No matter the initial shape of the metal, once they are squeezed out of the rollers, they acquire a uniform flattened shape ready to be used in various spheres of small-scale and large-scale manufacturing facilities.

Advantages of Installing Rolling Mill Machinery 

Rolling mills come with many advantages for both large-scale and small-scale manufacturers, catering separately to varied needs.

1. Ideal for Processing Metal

For ages, rolling mills have served as the perfect machinery for processing metals of varying densities. Not only do they save time in beating and flattening the metals into sheets, but they are convenient to small-scale manufacturers who place the utmost importance on efficiency and perfection in their work.

2. Good Consistency

Small manufacturers need the highest accuracy in their products because they produce metal sheets of comparatively smaller sizes and less in numbers than large-scale manufacturers. It is only through rolling mills that such constant uniformity is maintained throughout the long material length.

3. Easy to Use

Being able to use good quality rolling mills is no rocket science if you learn the basics of the machine. You can also get a test run to learn how to operate the mills efficiently.

4. High Productivity Rate 

For a manufacturing unit, large-scale or smaller production facility, a high productivity rate in minimal time is the goal of all. With a one-time investment in rolling mills, you can boost the production rate. These machines can help you save time, ensure accuracy and time efficiency, and are a wise investment overall.

5. Lower Operating Cost

Rolling Mills primarily come in two categories: Hand-powered and Electric rolling mills. Hand-powered rolling mills are cost-effective for a firm and preferable for small-scale manufacturers. Electric rolling mills are known to save power, ultimately reducing costs in the long run.

Choose Us for Reliable Rolling Mills for Your Needs 

Reliable rolling mill plants hire well-trained engineers who cater to all the requirements of a high-functioning rolling mill mentioned above. The various parts of a rolling mill are put through a series of tests by professionals before they are assembled and sent to factories.

Steefo Industries is now a part of the Steefo Group. We only sell tried and tested products to ensure a promising result to our buyers. As a leader in the rolling mill industry, we believe in providing the highest quality and manufacturing standards while verily complying with ISO : certification. We have strived hard to create a name in the industry as the leading and most preferred Rolling Mill Manufacturers since .

Our services include project design and engineering, spares and consumables, technical support and repairs, service agreement program, and revamping & productivity enhancement.

For more information, please visit Plating Line.

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