Chipper Danuser 18P Chipper
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I have an 18P and am happy with it. I wrote a review about it a while back, here it is again in case you missed it. The only thing I would add to the review is that in addition to the 106 lb flywheel there is a hefty cast iron pulley for the 8 v-belts. The pulley adds additional flywheel mass.
Andy
Last week I purchased a PTO woodchipper for use with my B2400. I had been looking at different brands for a couple of years. I decided on the danuser model 18P. This is a 4 inch chipper with power feed. Even though it is rated to take 4 inch diameter wood, the actual infeed opening is 6 inches square. This aids in fitting branches through the opening without getting jammed. The power feed is gear driven off the chipper power shaft and feeds at 55 feet per minute. Many other brands have hydraulic power feed. The gear drive does not allow the feed to be reversed in the event of a jam, however it does not require a hydraulic connection to the tractor.
The chipper is built of heavy gage steel with hefty bearings and shafts. The 106 pound flywheel turns at 1280 RPM with 540 RPM PTO speed and there are 2 cutting knives. Most of the other brands have the flywheel turn at 540 RPM. A slower flywheel stores much less energy than a faster turning one. The higher speed also results in more cuts per minute even though some of the other brands have 3 or 4 blades. The speed increase is accomplished with belt drive. These pulleys have 8 belts side by side to handle the torque load. The belts act as a mechanical fuse if things get jammed, preventing damage to either the chipper or the tractor.
The chipper is rated for 18 to 45 HP. My B2400 is on the bottom end of this rating producing 18 PTO HP. I did succeed in stalling the tractor on a piece of 3 ½ inch dry maple. The tractor stalled after about 7 feet and yes the belts did squeal when this happened. I guess I should have disengaged the power feed. Interesting enough the tractor RPM never even dropped on anything else I chipped all weekend including some 4 inch oak.
The chipper has a built in fan on the back of the flywheel that lifts the chips up and discharges them out a chute. I built a plywood extension and top for my trailer and shoot the chips into it.
I am satisfied with the quality of construction and ease of operation. The power feed is great. I decided on the power feed because it will pull small branches and vines as well as the large stuff right into the chipper. It eliminates kickbacks which can happen with the last foot or so of the branch without power feed. It is also rated as quieter than many other chippers.
I paid $3475 for the 18P, the model without power feed (18G) was $1000 less but is being discontinued. The first dealer raised the price $600. since I priced it with him last fall. I contacted the manufacturer and was told the list price had increased $100 during that time. I found another dealer that sold it to me for $75 more than I was quoted last fall.
The company web site is at: http://www.danuser.com/chippers.htm#specifications
Andy
Last week I purchased a PTO woodchipper for use with my B2400. I had been looking at different brands for a couple of years. I decided on the danuser model 18P. This is a 4 inch chipper with power feed. Even though it is rated to take 4 inch diameter wood, the actual infeed opening is 6 inches square. This aids in fitting branches through the opening without getting jammed. The power feed is gear driven off the chipper power shaft and feeds at 55 feet per minute. Many other brands have hydraulic power feed. The gear drive does not allow the feed to be reversed in the event of a jam, however it does not require a hydraulic connection to the tractor.
The chipper is built of heavy gage steel with hefty bearings and shafts. The 106 pound flywheel turns at 1280 RPM with 540 RPM PTO speed and there are 2 cutting knives. Most of the other brands have the flywheel turn at 540 RPM. A slower flywheel stores much less energy than a faster turning one. The higher speed also results in more cuts per minute even though some of the other brands have 3 or 4 blades. The speed increase is accomplished with belt drive. These pulleys have 8 belts side by side to handle the torque load. The belts act as a mechanical fuse if things get jammed, preventing damage to either the chipper or the tractor.
The chipper is rated for 18 to 45 HP. My B2400 is on the bottom end of this rating producing 18 PTO HP. I did succeed in stalling the tractor on a piece of 3 ½ inch dry maple. The tractor stalled after about 7 feet and yes the belts did squeal when this happened. I guess I should have disengaged the power feed. Interesting enough the tractor RPM never even dropped on anything else I chipped all weekend including some 4 inch oak.
The chipper has a built in fan on the back of the flywheel that lifts the chips up and discharges them out a chute. I built a plywood extension and top for my trailer and shoot the chips into it.
I am satisfied with the quality of construction and ease of operation. The power feed is great. I decided on the power feed because it will pull small branches and vines as well as the large stuff right into the chipper. It eliminates kickbacks which can happen with the last foot or so of the branch without power feed. It is also rated as quieter than many other chippers.
I paid $3475 for the 18P, the model without power feed (18G) was $1000 less but is being discontinued. The first dealer raised the price $600. since I priced it with him last fall. I contacted the manufacturer and was told the list price had increased $100 during that time. I found another dealer that sold it to me for $75 more than I was quoted last fall.
The company web site is at: http://www.danuser.com/chippers.htm#specifications
Andy, thanks for the extensive review of the 18P. My B7500 has a PTO HP of only 16hp compared to 18hp on the 2400. The danuser literature states it is usable for engine HP of 20 to 45hp so my b7500 should work but i will be careful not to put large diameter wood in the chute. My use will be more for smaller trees and brush to clear on my 3 acres. Larger diameter trees i will put in the wood boiler.
Anonymous Poster
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I have just received my Danuser 18P chipper. I am having trouble getting the PTO shaft to attach to my B7500 Kubota. I was wondering if anyone else had this problem which need cutting the shaft to remedy as it appears too long even when telescoped all the way down. I know others have this unit attached to their kubota compact tractors. Thanks for your help and guidance.
DavidInNH
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I also had to cut the PTO shaft when I first mounted my 18P to the B2400. If I remember correctly the shaft came with instructions on how to measure and cut so it is the correct length.
Andy
Andy
Thanks everyone for the help and the encouragemnt to tackle the cutting of the PTO shaft for my new chipper. The thread from Apirl on cutting shafts made the task very simple once my decision to forge ahead was made. The Danuser 18P is a fine machine attached to my Kubota 7500. It never misses a beat. In eight hours of use yesterday I only had one jam up requiring cleaning debris from the flywheel. For me it is a marvel as my cutoff point to save wood for the wood burner is 3.5 to 4 inches. Limbs smaller than this appear to be nothing for the 18P to handle. The mechanical feed was not something that I thought that I would need. As Daunuser no longer makes the 18g which is the gravity feed there was no choice in this matter. I now understand why they do not bother with selling the 18G anymore! This simple mechanical feed design is a real worksaver.