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How to Change a Cutting Drum on a Scarifier

  How to Change a Cutting Drum on a Scarifier   If you have been using your scarifier for a while, the scarifier's cutting drum will need to be replaced periodically. Your manufacturer's manual is helpful in understanding this procedure, but we will explain the steps necessary to replace your dethatcher drum. By following the four steps in this method, you can replace your drum easily and efficiently. The main four steps are: Removing the cutting drum, disassembling the cutting drum, reassembling the cutting drum, and reassembling the cutting drum. Because of the complex process involved in these stages, we break it down into simple steps. Follow these instructions to get your scarifier ready for use.   A) Cutting roller removal:   1. Rotate the scarifier so that it rests on the handle bar.   Note: Never place the scarifier on the back of the handle bar   2. Locate the shaft cover and mounting screws. 3. Remove the shaft cover and cage, use 9/16 wrenches and/or sockets on the rear retaining bolt, and loosen the front retaining bolt. 4. Remove the shaft and plastic cover from the belt guard and expose the shaft. 5. Use a 15/16-inch socket wrench to loosen the outer shaft.   Note: Turn it counterclockwise.   6. Remove the outer shaft while pulling on the retaining nut with your index and middle fingers. (see pictures missing below*)   Note: Repeat step 6 for the inner shaft and also the retaining nut.   7. Remove the cutting roller as shown by pushing it away from the belt side and removing the shaft.   B) Cutting drum disassembly: 1. Locate the retaining ring and retaining screws on the edges of the cutting drum. 2. Use a 7/16 inch wrench to remove the 3 retaining screws. 3. Remove the drum retaining ring and the three apartment washers Note: Place these items in a safe place. Cutting Drum Components + Assembly:   There are a few things to consider on each side of the retaining plates before installing the cutting drums: Both sides are wide. Moreover, three major components may be accommodated within these plates: shafts made of hardened steel. spacers made of hardened steel. 2) Cutter drums. The two primary assemblies will be examined: the flat tip drum assembly for typical applications and the tungsten carbide assembly for more aggressive finishing. Let's examine a few things to remember:   Shafts, which are sometimes known as "bars" or "handles," serve to hold the most popular cutting discs or cutters. Six hardened steel shafts are held by two retention plates and one central plate for cutting drums that are 8 inches long.   Spacers: This device provides for just the right amount of movement—not too much—between each other cutter. Check that all of the cutters may spin freely without being overly tightened in order to evaluate the space balance of your drum. If there is too much room, it could lead to early deterioration of the Cutting Drum and premature wear. Drums for scarifiers need to be balanced well enough to spin easily; if they are too loose, you can add a cutter or a spacer to the shaft.     Scarifier drum cutters are sometimes known as "Cutting Discs" or simply "drum cutters." This tool lets you specify the kind of surface finish you want at the job site. When installing the drum cutter conditions into the shafts, we advise updating them. Verify that the tips are not missing and that they are not overly worn. There are many distinct kinds of cutters, each with unique features. Depending on the material, certain cutters survive longer than others. We shall briefly discuss the three main categories of cutters. Visit our blog on "Scarifier Cutters" to discover more about their primary use. The most cost-effective cutter for a long-lasting smooth finish is the steel scarifier cutter. used best for mild surface preparation tasks like coating applications or substance removal. Furthermore practical for everyday tasks like cleaning Waterproofing membranes, plastic coatings, glues, and other thick and soft materials can be removed with a milling scarifier cutter. Traffic lines, epoxy, and other types of general scarification can all be removed with a milling cutter.   • Tungsten Carbide Cutter (TCT): Designed for heavy-duty scarifying applications, it has an exceptional life. For extremely severe jobs like grinding, leveling, grooving, cleaning, and other general surface treatments, use this cutter. For general purposes, let's examine how a 6-tooth tungsten carbide drum is put together:     1. Take off the retaining plate on the drum: 2. Put the cutting drum together by doing the following:   a. Remove the first shaft's widest side. b. Five steel spacers and one carbide cutter should be added to the wide side's edges. c. Include a carbide and a few spacers. d. Add 4 cutters as soon as you get to the middle of the shaft's end. e. Add one to two spacers to finish.     Ensure sure all cutters can spin freely; if a spacer seems too tight, remove it.   3. Assemble the shaft's narrower side by inserting two spacers:   f. Including 3 spacers and 1 carbide cutter. g. Repeat steps (adding 1 cutter and 3 spacers) for the following round. g. Add one or two spacers last.   4. The first shaft's design is reversed in the following shaft. While working on the scarifier, be careful to balance the drum in the same manner as the reverse section to ensure that all of the cutters strike the surface. 5. Use the to close the cutting drum.   Installation of the cutting drum:   1. Place the cutting drum into place by lining it up with the shaft-side bearing.   Keep in mind to confirm that the scarifier's cutting drum and shaft are completely assembled.   2. Put the shaft's inner retaining nut into place. 3. Tighten the inner retaining nut on the shaft using a 15/16-inch socket. Be sure to counterclockwise-rotate the shaft.   4. After the shaft has been inserted, reattach the belt guard's holding nut. 5. Swing the shaft guard cover into position and fasten the rear retention screw.   After you comprehend the crucial elements of your concrete scarifier, these methods will become simpler to follow. To replace your cutting drum, follow these four steps. Also, be sure to get the proper drum cutters, as they will affect how smooth your surface will be.   Don't forget to select the appropriate cutter type for the task. Keep track of the drum cutter's lifespan and how often the scarifier is used. Verify that the new set of cutters is in proper shape and is missing no tips.   Make that the cutter drum is balanced and has the right size, quantity, and number of cutters. Your drum needs to be bounced in order to avoid malfunction and potential premature wear. Finishing the edges or corners of the retaining plate can be difficult and time-consuming. In fact, after experimenting with the other shafts, you will have a balanced, spin-free drum that is ready for use.



How to choose tools for your concrete scarfiers?

  How to choose tools for your concrete scarfiers?   Floor planers, which is also called concrete milling machines, concrete scarifier or scarifying machines, are widely used in surface preparation. It creats a much more aggressive effect than floor grinding machines or floor grinders. There are various choice for it, such as electric concrete scarifier, self-propelled  surface planers, walk-behind heavy durty floor scarifiers in size 8"/ 10"/12".   It is one of the most aggressive method in bridge deck pavement, bridge deck shearing, the removal of old road surfaces,  asphalt milling, removal for the road pavement markings, road maintainance equipment as well as the ground operations of airport runway, parking lots, squares an some other concrete ground. Construction contractors can use different cutting blades or flails on the drums to achieve different level smoothness.   So how to choose the most suitable tools?   Most commonly used tools on scarifier drums are star flais, carbide flails, milling cutters, full steel beams and stars. Each are designed for different surface prep tasks.   TCT flails with carbide tungsten tips   -Cutter body steel material: 40Cr (China type) which equals to Germany steel 41Cr4 -Tungsten tips: YG7 on stars and milling cutters -Hardness: Averagely, our hardness is around 50 HRC-55 HRC - Standand stars:   5 stars carbide cutters suits most 8" concrete planers or concrete scarfiers machines.   6 stars carbide cutters or blades, suit most 10" floor planers or concrete scarifying machines.  8 points carbide TCT cutters/ flails suits most 12" heavy duty concrete scarifiers machines.    5 tips or 6 tips carbide cutters are compatible withVon Arx® - FR200, Von Arx® - VA25 ,Airtec® - RT - 2000,SASE® - SC10E ,MK® - SGII / SG5 / SG9, Sase® - SC8E, Bartell® - SP8, Bartell®BEF 200, General Equipment® - SP8, Kut-Rite® - KR8, Blastrac BMP-215 SCARIFIER,Trelawny TFP 200 RANGE, Edco® - CPM-8 multi-planes, Husqvarna® - CG 200 S - 3/4" and etc.    8 tips carbide cutters are compatible with  Airtec® - RT - 2500, Airtec® - RM 320, Target Mini Planer® , Edco® - CPU-12, Sase® - SC12E, Von Arx® - VA30, Trelawny-SCARIFIER TFP 320, Edco® - CPU-10FC, Airtec® - RT 3200, Blastrac - BMP-335 SCARIFIER and other heavy duty scarifiers.   If you have any question, feel free to send us email or call us to consult :   or you can visit our website for more information:                     




SCARIFIERS / FLOOR PLANNERS The Most Aggressive Effective Way For Surface Preparation   In general, there are total three ways for surface prep work, grinding/shotblasting, scabblign and scarifying. Each are suitable for different surface profile,which is measured from CSP 1 to CSP 9. It is very important to know the purpose of your job before choosing the most appropriate tool. Among those prep methods, grinders and shot blasters are a better choice for light tasks. And floor scarifiers and scabblers (or called as floor planners and milling machines) are designed for heavier and more efficient work by using really sharp tool and really cutting.     WHAT IS A SCARIFIER?   CATEGORIES: The scarifier, also called floor planners and milling machines, categorize in different types. According to working methods, it includes self-propelled scarifiers, handheld scarifiers and manual push walk-behind scarifiers. According to engergy, it includes Air Powered Scarifier,Electric Scarifier or Gas Powered/Gasoline/Petrol Scarifiers. There are a lot of brands and different types floor planners for choice, such as EDCO CPM8, CPL8, CPM10; KutRite KR8HD Scarifier, KutRite KR10 Scarifier, KutRite KR13 Scarifier; SASE SC8E, SASE SC10E and SASE SC12E; Blastrac BMP-215 SCARIFIER,BMP-265 SCARIFIE and BMP-335 SCARIFIER;Trelawny DECK SCALER TFP 200 RANGE,FLOOR SCARIFIER TFP 260 RANGE and FLOOR SCARIFIER TFP 320 RANGE; Bartell SPE BEF200 Multiplane, Bartell SPE BEF275 Multiplane, and Bartell SPE BEF320 Multiplane and etc.   TOOLS: Basically every scarifiers has a core cage,including drum shaft , sets of replacement accessories wheel cutters and spacers.     HOW DOES IT WORK?   The drum assembly works by striking hard on the floor surface at very fast speed. The multi-pointed cutting cutters rotates at high speed,chipping forcefully, and leaving an abrasive surface for further overlays. During this process, the cutting depth can be adjusted through the machines. And different optional interchangeable cutting wheels tool can be chosen according to the profile level you aim to achieve.   HOW TO CHOOSE DRUM CUTTERS? The cutters on the drum shafts are replaceable and interchangeable tool and very essential during contractors job. The more aggressive tools chosen, and the more cutters used, the more effective your job will be. Below are some useful tips on how to choose correct cutters for your job?   TCT Tungsten Carbide Cutters or Flails: The cutters come in multi-points, ranging from 5pt/6pt/8pt/12pt in different dimensions. With hardened steel cutter body and long working life carbide tips, work great for the removal of all heavy task of surface removal, such as bridge deck and car park membranes, heavy industrial contamination, epoxy coatings and road markings.   Steel Beam Cutters and Star Cutters: The cutters come with heat treated steel body and work great for light tasks, such as removal of paint, laitance and coatings from floors and removing grease, dirt and ice deposits when light scabbling of concrete and a fine textured surface required.   Carbide Tipped Milling Cutters: The cutters are tungsten carbide tipped, with 5pt and 6pt in different dimension suiting different tools, perfect for removal of thermoplastic road and runway markings, also has great come out on the removal of bituminous and rubber deposits. If you still have no idea or not sure which tool to choose for your work, please do not hesitate to contact with us for help.