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Drawdown belts are used in the packaging industry when something is filled into a folia or paper bag. Drawdown belt is also called haul off or bagger belt , coated belt, vacuum belt, or VFFS belt . The later term is an abbreviation from Vertical Fill Form and Seal Machine, one type of packaging machine where the draw-down belt hauls off the folia to form a bag. The drawn-down belt consists of a basic toothed belt and a cover. The basic belt is around 90 ShA while the cover should be much softer ranging from 35-55 ShA to sti SPECIAL BELTS FOR PACKAGING INDUSTRY ck to the folia or paper they draw for packaging the product into a bag. For the basic belt manufacturers can use either Polyurethane (PU) or Neoprene timing belt. A lifetime of PU is longer. If you prefer a longer life you should buy PU basic while if the price is a preference you should buy Neoprene. However, if you consider stopovers/ change periods and maintenance cost no question PU is more economic. Neoprene basi...

1 – Material:  What is in contact with the Roller?  Metal  Plastic  Wood  Urethane  Natural rubber  Corrugated cardboard  Other material 2 – Product weight:  What will be the maximum weight? 3- Desired transportation speed:  How fast do you want to move the article? Feet/minute (FPM) Meters/minute (MPM) 4 – Diameter of the roller:  What diameter are you looking for? Common Roller Diameters 1.50” (38.0mm) 1.68” (42.7mm) 1.91” (48.6mm) 2.25” (57.0mm) 2.38” (60.5mm) 2.50” (63.5mm) 3.00” (76.3mm) (Convert English units to Metric units, 1 inch=25.4 mm) 5 - Between frame dimension:  What is your between frame dimension (BF)? In determining the correct length of the ROLLERS required, you should first obtain the between the frame width of the conveyor you will be mounting the in. All dimensions need to be converted to millimeters. Take the between the frame width and subt...

There are several ways that a timing belt can be identified. Many times the timing belt part number and the name of the timing belt manufacturer will be printed on the timing belt and will still be legible. While this is the ideal situation, there are many times when the timing belt part number is either incomplete, vague, or from a belt manufacturing company that is either out of business or has a timing belt numbering system that isn't easily cross referenced. If the timing belt isn't marked adequately, there are times when the timing pulleys are marked adequately to determine the pitch and profile of the timing belt. The pitch of the timing belt is the distance from the center of one tooth to the center of the next tooth. The problem is that there are several different tooth profiles or shapes for 3mm, 5mm, 8mm and 14mm pitches not easily discernible without proper tooling. These include the Conti AT5/T5, HTD/ STD, Power Grip HTD/ Power Grip GT2 and Poly Chain prof...

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1. Classical V Belts: . The first of the V belts to enter in  power transmission.  . Maximum permissible speed = 30m/s . In   application where reverse idlers are not used , classical V belts are more   advanta geous other       than because of smaller heights. 2. Wedge V  Belts:  . Wedge belts can transmit higher power 1.5-2 times than of classical belts with the same top width. . Maximum permissible belt speed = 42m/s . Wedge belt is primarily used in new drives to achieve space saving. . Extensive use in industrial application from light duty application to heavy duty application. 3. Narrow V Belts:  . Constructionally & properties wise Wedge V belts & Narrow V belts are same, the only difference additional ridge top provided in Narrow belts. . Maximum permissible speed = 42m/s 4. Hexagonal V Belts: . Hexagonal V belts are also called double V belts. . Hexagon...

Hello Everyone.....!!! Today we shall share the difference between Conti CXP & CXA Timing Belt. CXP & CXA Rubber Belt Properties: Oil resistant to a degree Tropics resistant UV and ozone Electrically conductive (Anti-static) to ISO9563 Temperatures ranging from -20°C to +100°C Increased power ratings CXP heavy-duty, high speed drive belt The CXP range has a specifically developed tension member and exceptional material bonding. The teeth and the belt top are made from a synthetic Rubber mix with high tear resistance and enhanced shear resistance, to ensure reliable sustained power transmission at belt speeds up to 50m/s. The CXP range is used where high power must be transmitted above 1000RPM. Glass Fibre Tension Member These tensile members have a high flexural fatigue strength along with a highly reliable power transmission capability up to 50m/s. CXA heavy-duty, low speed drive belt The CXA range combines exceptionally hig...

The beauty of the thermoplastic conveyor belt is the belts versatility. Thermoplastic belts have a broad range of chemical compounds (polymer and monomer chains). Based on the manufacturing and conveying requirements from the thermoplastic, varying types of thermoplastic belts can be manufactured to suit an array of industries. Each polymer compound varies in it’s properties and the elements for which it can perform and is used in conveyor belt solutions.  For industrial conveyor belts, the specific types of thermoplastic polymers are; polyurethane (PU), , polyethelene (PE) silicone(Si) and polyvinyl chloride (PVC).  Polyurethane Belts (PU) PU belts are manufactured following FDA approved compounds and manufacturing methods to ensure that the thermoplastic conveyor belt is suitable for the food manufacturing industry. This belt can also be used across pharmaceutical, metal transportation and textile industries.  PU conveyor belts are used in these ...

Hello Everyone.....!!! Today we shall continue our previous 'TIMING PULLEY ' series. Here we are going to discuss timing pulley calculation chart.                                  Pitch Diameter (P.D.) = (Pitch x Number of teeth) / ∏ Timing belt pulley outside diameter (O.D.) builds upon the relationship between the timing belt pulley and timing belt. The outside diameter of the timing belt pulley is in contact with the tooth bottom of the timing belt while meshing with it. The distance from the timing belt tooth bottom to the tensile cord (pitch line) will determine the outside diameter of the timing belt pulley for any timing belt pitch/timing belt profile. Variables: Pitch :                                5 mm No of Teeth:             X     16   ...

 Let’s look at the relative benefits of two of the most common types of conveyor belts: Table top and Mat top. TABLE TOP CONVEYOR BELT:- Table top conveyor belt are modular belt, which makes them very flexible. You can add or remove modules, they work well with inclines and declines, and they can go around curves. These features make table top conveyor belt particularly advantageous when space is at a premium. Table top conveyor belts are appropriate for sanitary environments where mild detergents are used. Use a table top conveyor belts: 1. Single-file products 2. Expand a line 3. Improve the speed and efficiency of changeovers 4. Accumulate products (Note: The amount of accumulation a table top conveyor belt can handle depends on the operating conditions as well as product characteristics such as material, weight, and rate.) MAT TOP CONVEYOR BELT:- Mat top conveyor belts are well-suited for transporting products over long distances, and they can handle ...

Hello Everybody, Today we are going to discuss about the prefer choices of belt drives as per operational requirement. Belt application matrix 1= first choice of operation, 4= last choice of operation Thanking you.... Series will continue..............................................................................................

Hello Everyone .....!!! Choosing the right construction material for a timing belt pulley can have dramatic repercussions. When designing a pulley you want a product that is reliable, has a long operation life, and is cost effective. Often, to achieve the desired results, that means there are two options for construction Material: Plastic or Metal. Nylon Vs. Aluminum Nylon: .Lightweight .Inertia control .Energy saving .Chemical resistance .Material cost savings .No coating to avoid oxidation Aluminum: .Lightweight (heavier than nylon) .Durable .Resistance to heat .High tensile strength When is Aluminum Preferable? One of the main reasons for choosing aluminum as a material is its high tensile strength, making it ideal is high horsepower drive systems. Nylon, however, has a lower tensile strength than aluminum or steel but it is still sufficient for low horsepower drive systems. One of the other most common reasons for turning to aluminum over nylon is its tem...

Hello Everyone ....!!!! Today we back with a very general & common topic ''Causes of failure of  Rollers & Idlers''. Why Do Rollers Fail? • Bearing Contamination o Roller Sealing Systems • ShellWear / Abrasion o Misalignment • Bearing Load o Shaft & Tube Deflection • Rollers Jamming o Material Spillage • Impact Zones o Spillage at Transfer Points • Wash‐down Areas o Constant Moisture • Fine Particulate Contaminants Some of the Conditions that affect Idler Life: • Type of Material Handled (dry, wet, abrasive, etc.) • Idler Load • Effect of Load on Predicted Bearing Life • Belt Speed • Roll Diameter • Environmental, Maintenance & Special Conditions

Hello Everyone....!!! First we will talk about Tooth Pitch Comparison, later on Belt Selection Guide. Tooth Pitch Comparison Imperial Pitch Belts - XL, L, H, XH This classic trapezoidal pitch is the original timing belt tooth design. This tooth pitch is commonly used for conveying applications. The tooth profile is fairly low and has a large surface area at the tip of the tooth providing good support on sliding conveyor surfaces. T Pitch Belts - T2.5, T5, T10, T20 These metric trapezoidal pitches are similar to imperial pitches, also commonly used for conveying applications, yet have a slightly deeper tooth engagement than imperial profiles. The tooth meshing is more reliable. However, backlash can be slightly greater. AT Pitch Belts - AT5, AT10, AT20 This pitch was developed to enable higher load carrying capacity combined with low backlash. The stronger and stiffer tooth makes these belts ideal for linear positioning and motion control, but may require larger pulley ...

Hello Everyone ....!!! Today we will proceed with our past article of PU Timing Belts. In today article we will talk about the antistatic properties & Area of Application /use of SYNCHROFLEX® Timing Belts. The Construction: SYNCHROFLEX® Timing Belts consist of two components, a polyurethane and a high grade steel cord tension member. The excellent bond between the two materials results in high power transmission capacity. The antistatic properties of SYNCHROFLEX® Timing Belts are achieved by: 1. Antistatic coating Post-process application of an electrically conductive coat on all sides of the belts with and wihtout textile facing. 2. Antistatic PU-Mixture A special conductive polyurethane mixture. SYNCHROFLEX® Timing Belts antistatic Application / Use Antistatic SYNCHROFLEX® Timing Belts find their application where electrostatic charges are not desired or inadmissible, e.g. for the transport of electronic components, drives and/or conveying equipment in an...

Hello Everyone...!!! We are back with ''PU Timing Belt Usage Example in Automation Industry''. Example To be continued.....