Simon

Do you own a JBM 624 or a JBM840 Wood Chipper Machine? At Rotatech, we're all about providing top-quality services and products to professionals like you. Today, we're thrilled to announce a one-time, exclusive offer to members of this forum. For the first member to respond to this post, we will not only professionally sharpen your blades but also manufacture an entirely new set, completely free of charge! Details of this unique opportunity are as follows: 1. **First Come, First Served:** The offer stands for the first person to respond to this post. 2. **Blade Selection:** Please ensure the blades sent for sharpening and manufacturing fall under our selected category above. Further information on eligible blade types can be provided upon request. 3. **Shipping:** You'll need to arrange for shipping of your blades to us. We recommend using a trackable, insured shipping method. 4. **Turnaround Time:** Please allow approximately 1 week for sharpening and 4 weeks for the manufacturing of the new set. 5. **Return Delivery:** We'll send your sharpened blades and the new set right back to you, and the return shipping is on us! This limited offer is a fantastic chance to ensure you always have sharp, reliable blades on hand, maximizing the efficiency and output of your wood chipper machine. Don't delay – this offer is reserved for the FIRST reply to this thread. If you have any queries or need clarifications, feel free to contact us directly, and remember - sharp tools make for smooth work! Best regards, Simon Jackson Rotatech HQ [email protected]

Hi Matty if you want to send them in for my attention I will have them sharpened and returned FOC. We do supply the whispercut blades but id need to double check once I see yours, that we have the correct model. Sorry about the late reply Simon Jackson1642953404_Schliesing550ZXVBladesLong (2).PDF1642953404_Schliesing550ZXVBladesLong (2).PDF

No sorry we don't only the stump teeth that are available on our website Replacement Stump Grinder Teeth For Sale | Rotatech® ROTATECHPRODUCTS.COM Get high-quality, durable stump grinder teeth and stump grinder blades from Rotatech's stump grinding range. Browse the range.

We get this question very often and I appreciate your interest in our products. As a company, we prioritise maintaining strong relationships with our business partners, and as such, we have established a long-standing business relationship with Redwood Global. This partnership includes an agreement not to supply Forst blades or any other products for Forst woodchipper machines, as we exclusively supply these products to Redwood Global. We understand that Forst is a popular brand in the market, and we appreciate your consideration of our company for your equipment needs. However, as a business, we believe it is important to uphold our commitments and agreements with our partners.

We get this question very often and I appreciate your interest in our products. As a company, we prioritise maintaining strong relationships with our business partners, and as such, we have established a long-standing business relationship with Redwood Global. This partnership includes an agreement not to supply Forst blades or any other products for Forst woodchipper machines, as we exclusively supply these products to Redwood Global. We understand that Forst is a popular brand in the market, and we appreciate your consideration of our company for your equipment needs. However, as a business, we believe it is important to uphold our commitments and agreements with our partners.

Thank you for the heads up I will let the developers know about the issues you are having and apologies regarding the signature its very old and needs updating. If you call us on 01142789090 we can process the order that way.

The design of the cutting blade on the Greenmech machines is genius but the solution for re-sharpening the cutters can be a headache if you don't know someone with a cylindrical grinders or you don't possess a Greenmech Disk Blade Sharpener. We have been sharpening these cutters for many decades on our CNC lathes using special ceramic inserts that keep the cutting edge cool, super sharp at the correct angle, and balanced to within a few thou of an inch (a hair on your head) keeping the full cutting system balanced. 9493FCD4-3DD4-4DD5-854C-AE78AB2AC5B4.MOV 9F0779A2-C44E-43D9-9486-0894EC66748C.MOV

Don't know how true this story is but I once heard that someone ran a Schliesing chipper with no blades in it and it still chipped!

Hi Mick, Glad to hear you use our blades what chipper are you operating now? Yes it's true we used Uddeholm for many years and we even got an invite to the mill in Sweden which was awesome but as the business grew so did our range of products and in many cases Uddeholm wasn't able to offer the sections we needed so we found alternative suppliers in Germany with huge inventories. Chipper blades are manufactured from Chipper Steel, that's the common terminology for this steel but it is actually called 1.2360 or Viking or A8 Modified all are the same chemical analysis but named differently. All adhere to ISO 9001 standard not the British Standards you mentioned above. Most blades are manufactured to the same speciation's for this particular industry and heat treated (HT) to 56/58 Hrc (Rockwell Hardness) this hardness gives the blades the durability and hardwearing properties needed for this application. The science in this process (HT) is common knowledge, a company who wants to supply a High-Quality blade will vacuum heat treat and double temper every blade but this process can be done much cheaper if its done in a gas fired furnace. We outsource this process and follow the high-quality option every time. Manufacturing has moved on in leaps and bounds since I was at college and everything is so much faster, faster tools, faster inserts, faster setups the world is just super competitive and you have to be on top of your game if you're going to survive in this industry. I have attached an image of a fixture that I designed and made in house for bevelling the cutting edge for the 35/150 Timberwolf blades with the hollow bevel, we machine them on a CNC lathe 8 at a time. then we have a Stump Grinding Wheel. Greenmech Disk blades. The Gockel grinders are what we use to finish all our blades on the flats, bevels and edges there isn't any blade we cant make her and that makes me super proud. If you are ever in the area Mick let me know and ill give you the guided tour I am sure you will find it interesting.

Hi my name is Simon Jackson and I am the Managing Director of Saturn Machine Knives Ltd the home of Rotatech wood chipper blades, both are the same company but Rotatech is the brand and we have been manufacturing wood chipper blades in Sheffield since 2002. So what constitutes a spurious wood chipper blade? A spurious wood chipper blade is a blade that is not manufactured by the original equipment manufacturer (OEM) of the wood chipper or is not produced to the same specifications as the OEM blade. These blades may be sold by third-party manufacturers as a replacement for the original blade, but they may not meet the same standards for quality, durability, and safety. There are several factors that can contribute to a blade being considered spurious, including: Material quality: The blade may be made from inferior materials that are not as strong or durable as those used in the OEM blade. Manufacturing process: The blade may not be manufactured using the same processes and techniques as the OEM blade, which can lead to variations in quality and performance. Design specifications: The blade may not be designed to the same specifications as the OEM blade, which can affect its performance and safety. Quality control: The manufacturer may not have the same level of quality control measures in place as the OEM, which can result in defects or inconsistencies in the blade. Using a spurious wood chipper blade can be dangerous as it may break or wear out more quickly than the OEM blade, leading to injury or damage to the chipper. It is important to use only OEM or high-quality replacement blades that meet the same specifications and standards as the original blade. If you have any questions regarding Rotatech wood chipper blades I would like to answer them directly, I have extensive experience within the machine knife industry manufacturing wood chipper blades and Sawmill blades for over two decades. When deciding to buy your blades from a non OEM company ask the question are these blades made to the same OEM or High-Quality specifications. Thank you.

Hi, We're currently redesigning the lazer etching on our blades and wondered if we could get your feedback. Our blades are made out of Uddeholm Steel and wondered that actually meant anything to you? Do you know their steel is the best in the World? Should we just put "Made from the World's best steel" or nothing at all. Thanks for you thoughts. Cheers

Timberwolf recommend a hollow ground bevel because it acts more like a planer than a chopper, this is kinder to the blades but does weaken the knife edge. Becareful though, the angle still requires to be set at 42 degree for the 35/150 and 41.5 degree for the 190 with a slight radius.

If you going to re sharpen your own blades with a hand grinder here are some good points to follow . Try not to over heat the cutting edge, this will anneal the blades hardness and cause it to dull of quicker . stick to the recommended angle specified in your hand books, a couple of degrees either way might not sound much but it has a big effect on your bearings, blades and economy ( Hence the chipper will run like a bear with a twisted ankle) . I’ve seen hundreds of blades that have been hand ground and the biggest problem is- the bevel edge is not straight in fact it’s more like a radius only the wrong way. It may appear quicker and cheaper to just take the cutting edge sharp but if the rest of the blade doesn't follow suit then be warned it will cost you eventually Dont have nightmares i am always a shout away if you need blade advise. Simon