Feel free to send an email to Richard saying whether this calculator helped or not, or news of a dreaded bug! Posted by gatimangear at 05:58. Estimated Roll Diameter . Staff member. Use the above formula, we can easily get the roll’s length is 45m. Calculates the outside diameter of a roll of material when the rolled length of the material, thickness of the material, and diameter of the hole in the center or the tube on which the material is wound are given. Material Thickness. Free reel calculating tool for working out slit reel or rewound roll dimensions such as Material Thickness, Rewind Diameter, Rewind Length, Product Weight. The calculations for spur gears are also simple and they are used as the basisfor the calculations for other types of gears. Wow. Example 2: For 57mm x 40mm x 13mm 55gsm credit card paper rolls, the paper diameter (B) is 40mm, the core size (C) is 13mm x 17mm, the 55gsm paper thickness (T) is 60um. Press releases; UL certification; HERMA self-adhesive … Tooth dimensionssuch as root diameter or tooth depth are considered when gear cutting. D. d-wright. Using linear measurements… We need to find out the cores’ outer diameter (as opposed to its inner) and the rolls’ diameter – a ruler will do if there is nothing else available. Specifically; my company supplies rubber and tape, both in rolls on a core. Elsmar Forum Sponsor Stijloor. Spur Gears are the simplest type of gear. So, The Engineer and Packaging Development must determine the length of packaging roll must below 1439 … 2. What are you wrapping? microns. 0.022 Smooth Offset Face Width 0.026 Tag & index Factor (see chart) Films 0.050 PET polyester Click Tab to view result below 0.046 PETG copolyester Calculate the roll outside diameter by entering the desired self-adhesive material, core diameter and roll length. HERMAsuperTack (63Vst) HERMAperfectStick (63Mps) HERMAsuperPerm (63S) HERMAperfectTack (62Gpt) Topics of interest. I have access to a lot of data from the coil, and tried thinking of a way to calculate using the inner hole diameter and the length and thickness of the steel strip. In the above formula: D b – Lower roll diameter; B – The distance between the action line of the upper roller and the center of the lower roller, B＝ [1+D b /(2R’+δ]B’; B’ – The length of the remaining straight edge, B’＝2δ. Enter the values needed below and click on "Calculate" to obtain the diameter of your roll. I need to know the mathematical formula to determine the length of material as it is on a roll. millimeters. Polypropylene = 0.90 g/cm2 Polyester = 1.40 g/cm2 Polyethylene = 0.91 – 0.96 g/cm2 Polycarbonate = 1.20 g/cm2. Outer Roll Diameter Do Outer Diameter of Core Di Thickness of Paper t. English or US Units (Diameter in Inches and thickness in Point. What is your current formula? I am having difficulty calculating the diameter that a tissue roll will build to. Roll Weight Calculator Inches PAPER Foils Core O.D. 4.1 Spur Gears. Download the excel calculate file and open it: Download. millimeters. Finally, you can find the diameter - it is simply double the radius: D = 2 * R = 2 * 14 = 28 cm. Capabilities. if I have the RPM of the roll and the thickness of the web coming off the roll and the mm/min of the web how do I calculate the roll diameter? The final calculation doesn't have to be perfect, but obviously the more accurate it is, the better the final result will be. Roll Length Comparison Calculator. The thickness of the web is probably insignificant compared to the roll diameter, so we can safely ignore that. Material Densities. Jul 3, 2008 #3. Slub catcher settings : a. Stijloor. Clear All Values. L = material length T = material thickness R1 = core radius R2 = total (outer) radius Consider a single layer, unrolled. See calculation Gear roll angle , gear roll length, gear roll diameter converter in xls click below link. You need to calculate the circumference of the mean diameter of the ring you are rolling. ↓ Skip to Main Content print@northernlabels.co.uk 01535 635742 Email This BlogThis! To use the roll diameter calculator, just fill in the material and roll measurements, then click the "calculate" button for the answer. Once I have this formula figured out, I will do the same to calculate the diameter of the letoff roll and web rewind rolls. If you want to calculate the diameter of a coiled roll instead of the total linear length, take the square root of the thickness times the length times 15.28 plus the core diameter squared. Super Moderator. The stretch or softness of the paper does not factor in the equation. DRAFT = delivery roll surface speed / feed roll surface speed ; No of hanks delivered by m/c = (Length delivered in m/min) / 1.605 ; WINDING 1. Label Length(in) L = Label Gap(in) G = Outer Diameter(in) D = Inner Diameter(in) d = Thickness(in) T = Resources & Technical Roll Diameter to Label Count Calculator Label Application Tricks Label Artwork Number Out Calculator Customer Support File Upload Insite Prepress Portal USPS Postal Rate Calculator. Writer Bio. 0.021 Bond 0.097 aluminum Roll O.D. Roll Diameter to Label Count Calculator. The length of the material will then be 11.75 x pi or 36.9137 inches. Easy to use Roll Length Calculator: quickly find the length of a roll by entering outside diameter, inside diameter and the thickness of the material. Roll Length. Example: If you are rolling a ring with a 12 inch od out of .25 inch thick material, the mean diameter of the ring will be 11.75 inches. meters. Use our circumference calculator to find the radius when you only have the circumference or area of a circle. How to calculate the diameter of adhesive tapes. Want formula to calculate roll diameter based on thickness. Awesome article. Fixed Blade = Carded - (2.0 to 2.5) x diameter Combed - (1.5 to 2.0) x diameter b. Calculate. In the formula: A 1 = Asinγ/sin(γ – φ) Driven Power Calculation 3.1 Upper roller drive torque. Web Velocity / Winder Shaft RPM (V/n) Calculation Web Velocity / Winder Shaft Rpm (V/n) is the most common method of determining continuous or running roll diameter for center driven spindles. The formula generally underestimates roll diameter for fabrics with texture or some specialty yarns. If you know the outer diameter of the roll and the core on which paper is wound and the thickness of the paper, you can calculate the length of paper using following equations. Paper Length Calculation when Diameter of Roll & Paper Thickness is Known. Roll outside diameter. The number of turns on the roll is also calculated. We are trying to determine roll diameter for packaging prior to running the parts. In a research I've found this formula: L = 3,141[(D2/2)² - (D1/2)²]/T Where "Roll calculator" "Rollen Rechner" Roll diameter Roll length Roll thickness Rolls Comparison No more guessing With this convenient calculator you can easily compare or calculate the diameter, length or thickness of a roll. Simply choose the appropriate tab to calculate roll weight, diameter or length. Tip diameter) are necessary for processing the gear blanks. Likes: Marc. Company; Office and Home; Labeling Machines; Popular products. Subject: calculate roll diameter Name: Bob Who are you: Other. I have attached the spreadsheet we are currently using . Formula as follows: (Roll Length) x (Roll Width) x (Roll Gauge) x 12 ----- Divided by (30,000) Micron and Gauge Conversion Formula. 133 KB Views: 1,004. Home; Formulas and Calculators; Net Poly Weight of Roll Formula. Roll diameter.xls. Material Thickness, Rewind Diameter , Rewind Length, Product Weight. More from HERMA. converter for gear roll length, roll diameter, roll angle If any issue please contact gatimangear @gmail.com . Calculator & Formulas; Formulas and Calculators. 3 comments: Unknown 30 July 2015 at 23:27. Using my formula to determine maximum length of Roll film allowed : TIM'S DIAMETER CALCULATION FOR CORES 3 INCH : Max length(M)={[max.diameter(mm)exp.2 - 8836 /[thickness(microns)x1.274]} = [(350)exp.2 - 8836]/[62 x 1.274 ] = 113664 / 78.988 = 1439 meters tolerances 1% in length. Jul 3, 2008 #2. Is there a simple formula relating length and thickness and tightness to get diameter? Quickly find the size of a roll by using this convenient roll diameter calculator. Enter the three required values and click CALCULATE . Electronic yarn clearer = 3 cm x 3 diameter Use our label roll size calculator to make sure you get the exact amount of labels that you need. Variations due to stretching or softness of the material are to be ignored. GRTCO: Belt Roll Formulas ; Math Forum: Calculating Material Length on Roll ; Tips. The following two calculation methods are the most common means of obtaining a roll diameter by calculation of machine data. Then enter the specifications of your product. Here is the simple method, hope u guys will like it: 1. Roll Diameter Calculator. Roll Weight by Length. T = thickness of fabric (inches) Where, Y = linear yards of fabric C = core diameter (OD) Style 7628, Greige Example: 1500 yards 4″ core Figure out the length of a roll of paper by knowing the diameter of the paper roll, the thickness of the paper and the dimension of the center hole. English Formula [(Roll Diameter²) - (Core Diameter²)] x Roll Width x Factor = Approximate Roll Weight Formula as follows: For Micron to Gauge (Micron) x (3.937) For Gauge to Micron (Gauge) x (.254) Feets and Meters Conversion Formula. Hi Bob. Core Diameter (O.D.) Jul 3, 2008 #2. Simply enter the diameter of the roll or parcel you wish to wrap and enter the amount of slack you require and the calculator will suggest the best width of layflat tubing for the job! Calculators and Converters Roll Weight Calculator Roll Diameter Calculator Unit Converter Roll Weight Calculator Roll Diameter Calculator Unit Converter Share to Twitter Share to Facebook Share to Pinterest. Jul 3, 2008 #3. Also, actual diameters can vary at different take-up tensions. Most of the times if we can know how to pack our goods by ourselves,no need ask others, it'll be more convenient and feel relax. Attachments. Use the above formula, we can get the roll’s length is 18m. Twitter; Facebook; LinkedIn; Youtube; Deutsch; Mandarin / 中文 ; English English en; Deutsch German de; 1-800-773-0062. Utilize our free Roll Calculator tool for your film or sheet dimension calculations.
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