Steel coil slitting line often works for big coil material , whole line can cut big coils into small coils with rewinder function . Longway Roll Forming Machine ship whole slitting line today .

For decades, roll forming equipment on shop floors across the continent have formed various conventional steels with low carbon content, high ductility, yield strengths between 36 and 50 KSI, and tensile strengths up to 80 KSI. In recent years, roll formers have needed to make more parts from high-strength materials: stainless steels with tensile strengths up to 95 KSI or high-strength/low-alloy (HSLA) material with tensile strengths up to 110 KSI.

High-strength steels have become increasingly popular for use in the automotive industry mainly because of their very high strength-to-weight ratios. However, formability in these same materials remains a problem; the yield strength is very high in these metals, which means the springback is very high. This makes roll forming parts a challenge. However, the efficiency of roll forming makes it an ideal process for producing certain parts compared to hot stamping. If you intend to roll form high-strength steels, it’s important to understand how you have to adjust your equipment to get the best results. You also have to consider the steel you are purchasing and how that is affecting the process.

Roll forming—also stylized as roll-forming or roll forming—is a metalworking process that employs a series of rolls to continuously bend a coil of sheet metal until it has the desired profile. The rolls come in sets that are mounted on consecutive stands to facilitate the forming operation. As the strip—typically made of coiled steel—runs through the sets of rolls, each set incrementally produces a bend in the material.

Tooling costs in manufacturing are already a sore spot for many purchasers, but some think roll form tooling is cost-prohibitive altogether. The up-front price tag tends to blind them to literal down-the-line savings.That’s right -- if your project fits, a roll form manufacturer can actually optimize your spending and get your parts out the door sooner and for less money per part.

While there is no catch-all roll forming solution for every business, there are some elements of the roll forming process that ring true across operations. Regardless of your size, your industry, and even your end product, roll forming machinery is designed to add efficiency, quality, and ultimately profits to your metal forming processes. The requirements necessary to maintain and operate a roll forming system can be loosely defined depending on your shop's specific needs. In this post, we'll discuss some of the variables that determine roll forming line operation and setup across metal forming industries.

1. Purpose: Suitable for longitudinal shearing of metal strips, and rewinding the slitted narrow strips into rolls.2. Advantages: convenient operation, high cutting quality, high material utilization, and stepless speed regulation of the cutting speed.3. Structure: It consists of unwinding (unwinding), leading material positioning, slitting and slitting, coiling (rewinding), etc.4. Applicable materials: tinplate, silicon steel sheet, aluminum strip, copper, stainless steel sheet, galvanized sheet.5. Applicable industries: transformers, motors, home appliances, automobiles, building materials, packaging industries, etc.Slitting machines are divided into parallel blade shears and oblique blade shears. Parallel blade shears. The two blades of this shearing machine are parallel to each other. It is usually used for transverse shearing of blooms (square, slab) and other square and rectangular section billets, so it is also called billet shearing machine. This type of shearing machine sometimes also uses two forming blades to cold cut rolled parts (such as round tube blanks and small round steel, etc.), and the shape of the blade is adapted to the cross-sectional shape of the cut-and-rolled part. Oblique blade shearing machine. The two blades of this shearing machine, the upper blade is inclined, the lower blade is horizontal, and they are at a certain angle to each other. The inclination of the upper blade is 1°～6°. This kind of shearing machine is often used for cold shearing and hot shearing of steel plates, strip steels, thin slabs and welded pipe billets. Sometimes it is also used to cut small steel into bundles.

BLUE SKY Cut To Length Lines (CTL) Are Designed With The Latest Standards Of Technology And Completely Made In Our Factory.  Our Cut To Length Lines (CTL) Can Be Used For Processing Hot And Cold-Rolled Galvanized, Pre-Painted And Stainless-Steel Coils, As Well As Nonferrous Materials – Aluminium, Copper And Brass Coils.Our Designers Develop All The New Projects According To The Customer Needs And Requirements, So All Our Cut To Length Lines (CTL) Are Customized According To Individual Requirements.The Advanced Technology Of Our Cut To Length Lines (CTL) Ensures A Simple And Reliable Operation To Provide An Excellent Quality Of Finished Products.

Slitting steel is essentially, a cutting process. Large rolls or coils of steel are cut lengthwise to create strips of metal that are narrower than the original in width. This is an automated process where the master coil is run through a machine that has very sharp rotary blades, one upper and one lower, often called knives.While the knives, clearly, are key to the process the un-coiler, knives and re-coiler must all be aligned and set correctly (knife clearance and uncoil/recoil tension levels are critical) in order to avoid problems. Dull knives along with a bad set-up can lead to burred edges, edge wave, camber, crossbow, knife marks, or slit widths that don’t meet specs.Another basic processing application is blanking. A blanking line will uncoil the material, level it, and cut it to a specified length and width. As a result, a blank normally goes directly into the manufacturing process without being re-sheared. In order to achieve the desired tolerance, blanking lines utilize a close tolerance feed system, side trimmers and in-line slitters.Cut-to-length lines are generally thought of as systems that produce sheets. Sheets are cut to a standard size and typically re-sheared at the end user. In order to achieve flatness tolerances, cut-to-length equipment needs to have precision corrective levelers. These levelers elongate the steel beyond its yield point (the amount of stress the steel can take at the onset of permanent deformation) in order to remove internal stresses and produce a flat sheet.

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