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Helical Bending Services

"Helical spiral bending" can be done with virtually every structural steel section as well as with plate. Actually, spiral bending most accurately refers to curved steel that has the shape of a hose coiled flat on the ground or the shape of the heating coil of a cooking range.  The resultant coils are sometimes called "pancake coils." Examples of  this type of steel bending can be found in our section on Multi-Radius Bending and our Circular Staircase Gallery.

Helical Bending Images


True helical steel bending is also called "pitched rolling" or "sloped rolling." Helical rolling is commonly used for curved steel stair stringers, curved steel stair handrails, and helical transfer conveyors. Stringer members are checked for radius, pitch and plumb for ease of fabrication. As an alternative to true helixes, handrails can be rolled to an approximate flat radius for a lower price but may require field fitting.

Helical Bending Capacities

Chicago Metal Rolled products has some of the largest capacity and greatest experience in the steel bending of helical forms. The company can form the most challenging helixes from the smallest to the largest sizes of plate (3" x 60"), channel (C18 x 54.7), tube (18" x 6"), pipe (24"), or beam (W30 x 99).  Turn around times are about 1-1/2 to 2 weeks.

Helical Bending Value-Added Services

In addition to forming helixes, we can also punch holes for stair pans allowing easy installation in the field.  Other drilling, punching, welding, cutting can be done to the steel sections either before or after the bending operations. 

Helical Bending Applications

Circular staircases are found in both residential and commercial construction adding grace and appeal not only to the architecture but to the experience of the visitors who walk up and down them.  Chicago Metal has rolled stringers for high-end retail stores like Barneys, for palatial mansions, for the Tribune McCormick Freedom Museum inside Chicago's Tribune Tower (In plan, the curve is elliptical.), and for more mundane applications like the stairs around a large storage tank.

Another industrial application includes helical strakes which are commonly used as stiffeners and wind deflectors on stacks.

Contact us for more information on helical bending.

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Testimonials

  • "A big thank you to your team. Your parts are receiving the most positive feedback possible. Your company has new fans here."
    Bruce E., Kansas
  • "Without CMRP able to roll these channels to my specifications, there was no way this beautiful round antenna would have ever worked. 
    Damon S., Wisconsin
  • "My customer has installed several truck loads worth of 36" x 160# WF beams you rolled and cambered for us. The quality is spot on."
    Justin J., Alabama
  • "The rolled stringers were right on the button as far as pitch and radius."
    Bob O., Illinois
  • "I really appreciate your company coming through on this order & expediting the material when you said you would.You stick by their word."
    Jason R., Missouri
  • "The last order of rings were the best that we have received from you. The flanges were all flat. Keep them coming like that."
    Lenny P., Ohio
  • "Thanks for OVER AND ABOVE EXCELLENT SERVICE.  The quality and accuracy of CMRP's work is outstanding"
    Peggy, Texas
  • "The ring looks good! The OD is dead on. Thank you for your concerns regarding our questions and responding so quickly. I was impressed!"
    Fran Z., Pennsylvania
  • "Please pass on to the workers, . . . (your) rings . . . were some of the best our fitter has seen."
    Jeff K., Illinois
  • "I want to thank CMRP for exceeding what you promised. You are ahead of schedule and the strakes are fitting great."
    Jim A., New York
  • "Your advice was a significant contribution to the project.  You provide excellent service and knowledge"
    John Z., Illinois
  • "These pipes were rolled DEAD ON. The shop guys said they had never seen a pipe come in and hit every point like that in a long long time."
    Joe C., Missouri
  • "The rolling on these rectangular tubes was absolutely perfect! Barely any adjustment needed to be made."
    Tom G., Massachusetts
  • “We just placed an order for Rolled Angle Rings & you delivered them to us within 2-1/2 days ... we are three states away.”
    Jim S., Pennsylvania
  • “I would like a quote on a spiral project. I have heard many good things about your quality and timeliness from other fabricators.”
    Ryan L., Utah
  • “The rolled beams were delivered yesterday and look very good. Thank you for great service!”
    Thomas S., Maine
  • “I’ve worked with CMRP for over 16 years and can rely on them for any size job and in any time frame. CMRP delivers every time.”
    Mindy, H., Indiana
  • “It is unbelievable how good a job you guys did rolling these beams.”
    Richard G., Canada
  • “You all helped us out greatly when no one else seemed they could. Everything worked out wonderfully!”
    Cliff P., Florida
  • “The parts are very impressive and the service was stellar. I will certainly be recommending you to anyone needing such services.”
    Randy W., Georgia
  • “We got everything we needed in a very short turnaround, I appreciate it.  We are happy to have a reliable source to turn to.”
    Russell P., Illinois
  • “Quote was great! Timely, appropriate, and frankly less money than we expected.”
    James L., New York
  • “CMRP immediately took action and shipped out my order the same day! This all happened like clockwork, allowing us to meet the deadline.”
    Margo R., Ohio
  • “We only use CMRP for our rolling needs. We can always depend on getting a finished product that is to our expectations or better.”
    David P., New York
  • “I wish everyone could get quotes back that fast! That is why we use you, fast response to quotes and questions and great quality!”
    Will F., Indiana
  • “Your quotes are always so well organized and thorough, I trust your work.”
    Jessica, South Carolina
  • “On larger more complex rolling items, I typically only go to Chicago Metal Rolled Products for pricing due to quality.”
    Kevin H., Pennsylvania
  • “Thanks for providing the material. First two sets were laid out and fabricated. Radius was excellent!”
    Brad, Iowa
  • “We really appreciate your work on this. Amazing attention for a smaller sized job. Thank you for coming through.”
    Erik J., New York
  • “The project was AMAZING! Thank you so much for your help. I really do appreciate it. Always a pleasure doing business with you.”
    Kelly E., Iowa
  • “Your salesman provided a quick quote with an offer to explain things we should take into account. It's known you guys do the best work.”
    Mark R., Maryland
  • “Thank you for your help with the project and for getting everything complete and shipped out in a such a timely fashion. You guys saved the day.”
    Ben B., Florida
  • “You guys did an amazing job on these stringers. We would NOT be having such a success story without your team's effort & patience!”
    David B., Oklahoma
  • “You gave me excellent service and help which I appreciated very much. Material was on time and right on spec.”
    Brian S., Pennsylvania
  • “Your positive attitude is noted & CMRP reputation in the steel industry is impressive. All of our locations will contact you in the future.”
    Dave B., North Carolina
  • “My boilermakers in the field had positive things to say about the quality and accuracy of the angles that you rolled. Thank you.”
    Walter L., New York
  • “The project is complete and our customer is very pleased. I appreciate your diligence and quality on this one.”
    Dusty A., Texas
  • “CMRP has been instrumental in our ability to deliver high quality & great looking parts. Any job, big or small, CMRP has come through.”
    Eddie C., Kansas
  • “Your rolled steel worked great! We check lengths & chord dimensions ...everything was within an 1/8".”
    Don L., Michigan
  • “We received our order on time and the level of workmanship is excellent!"
    Roger R., Georgia
  • “Your company did a great job rolling these parts. Our fab and installation is going very well thanks to the quality of your work."
    Ronnie S., North Carolina
  • “Your company is the only one that was able to give me a quote that was right on with my specs, everyone else had to modify at least one dimension."
    Adam S., Minnesota
  • “Thank you for the follow through & turn around time, it greatly helps in the environment that exists today."
    Don F., Nevada