timesaver wide belt sander troubleshooting

Hold down rollers need to be adjusted based on your workpiece thickness and your sanding application. Average abrasive belt stock removal maintaining average belt life yet capable of removing previous grit scratch: Grit                                         Depth of Cut, 60                                            .035 – .045, 80                                            .020 – .030, 100                                          .015 – .020, 120                                          .010 – .012, 150                                          .006 – .008, 180                                          .004 – .005, 220                                          .003 – .004. If your marks match up to one of the distances provided by either formula, then you’ve likely found your root cause for the chatter marks. This allows me to see where the belt is cleaning up and how much more material I need to remove. If marks run across the full width of your work piece and are evenly spaced over the full length of the material being sanded and you are achieving the correct stock removal capabilities of your abrasive belt, then you should inspect the abrasive belt seam. While the act of sanding in and of itself may be an inherently simple concept. Check with your abrasive belt manufacturer for recommendations. There is a formula to determine abrasive belt tension. Sporadic “waviness” or “dips” may be caused by poor conveyor belt conditions. Belt tracking issues can occur if a sanding belt was not cut properly. Out-of-round or flat spot in contact roll. Trying to diagnose and isolate the root causes for wide belt sander issues can be extremely difficult. This chatter mark is usually 1/2” in spacing. There are a few simple ways to diagnose these factors to determine what the root cause for dust may be. This is only a relevant issue for a multi-head sanding machine. Our company was founded and built by an industrial wide belt sander technician that was employed by a major wide belt sander manufacturer, with the idea that top quality repair work, exceptional customer service, attention to detail and competitive pricing can all be available in one package. Defects in the belts, the drums, or … Hard durometer or metal rollers are strictly for stock removal purposes. You can check the static discharge produced from your machine with a static meter. TimeSavers is a worldwide distributor of clock repair parts and repair material. A dial indicator could be used on smooth contact drums/rolls. 4) Use a magnetic conveyor bed (ferrous parts only). If this develops after use, check contact roll and idler roll bearings and motor bearings. Trying to diagnose and isolate the root causes for wide belt sander issues can be extremely difficult. Check to make sure there is not excessive backlash or wear if equipped with a coupling or gear reducer if you suspect the chatter is caused by the feed drive system. You are only removing a few thousandths of an inch per cycle and want to remove as little as possible from the conveyor belt but still achieve a uniform flat surface and restoring the original belt grip. Allow thebelt to cycle a few passes before adjusting for more removal. Different patterns could be the result of different issues. Cloth may be a better fit if your application requires a more durable or flexible abrasive. Feed chatter is not as common as machine chatter or abrasive belt chatter. If the solenoid is working correctly it should be directing air equally and alternately to each side. Abrasive belt seams of today are far different than ones used in past years. If your contact roller is worn out of round or out of balance, chatter marks could be created. Buildup on the belt can then create load and burning issues. Contents Introduction 5. Nationwide Woodworking & Metal Working Equipment Service. With this formula, you can ensure that you never have issues with improper tensioning. 4) Excessive Dust Buildup or Static Electricity, Identifying a Faulty Dust Extraction System, [(belt length mm) x (feed speed, m/min)] / [(belt speed m/s) x 60 x (number of joints)] = Distance between fault marks in mm, [(circumference of roller, mm) x (feed speed, m/min)] / [(belt speed, m/s) x 60] = Distance between fault marks in mm, Removal Rate Issues or High Sanding Pressure, Fintech Industrial Abrasives is a leading manufacturer of industrial abrasive products. If you have a pad that is too flexible, or your sanding pressure is too high, you can also get a wavy surface. 3) Use a vacuum bed conveyor. It is very critical to have a contact drum/roll that spins at a high RPM balanced dynamically and accurately. For over 35 years, our abrasives have served some of the largest woodworking, plastic, glass, stone, metal, and textile manufacturers in the country. Check to make sure your wide belt sanding heads are locked down properly. However, if your belts are prematurely breaking, it’s probably time to start doing some investigating. The causes can be readily identified by their length and location. Prior to installing new bearings, make sure your shafts are not undersized. Some belts have joints that are designed to be bidirectional (they work well going both directions) while others are only unidirectional. While the act of sanding in and of itself may be an inherently simple concept, wide belt sanding and wide belt sanders are anything but. When the laser eye is blocked there can be issues with belt tracking. If your hold down rollers aren’t properly adjusted, chatter marks can be created. You may also be using the wrong type of contact roller for your application. If the distance between the marks remains the same as before, then the problem may be in your feed drive system (with variable feed speed only). The grit ranges for various applications can be found below: Of course, the type of material you’re running through your machine also plays a role in belt loading as well. It may be the better choice in certain situations. A damaged roller can also create a wave. As previously mentioned, cloth is more durable and flexible. Improper belt tracking could be caused by issues related to the laser eye, tension pressure, belt cut, removal rate, improper abrasive storage, or uneven rollers. Excessive belt loading can create waves in the workpiece. 37" Timesavers Orbital Sander with Dual Orbital Heads (Woodworking Sander) $12,500.00 Timesavers 37" Wet Wide Belt Drum Disc & Brush Deburring / Finishing Sander I had to repair the Timesaver at least 3 times. … Like ridges, different patterns have different root causes. Choosing the right backing is crucial for both avoiding sanding issues and preventing belt breakage. It’s best to consult an expert if you have doubts in your ability to properly ground your machine. It’s entirely possible that you’re experiencing high loading or burn because the current belt is too old and worn. Chatter marks can also occur if tension pressure isn’t set correctly. Sanders Unlimited has the knowledge, desire and state-of-the-art equipment to handle nearly any wide belt sander service job, as well as a variety of additional industrial machine repair services. If there doesn’t seem to be any clogs, you’ll want to measure the air flow for your dust extraction system with an air flow meter. The outfeed roller kept messing up. Your machine should have solid four corner contact with the floor.

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