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  • Nathan Sangster

More horsepower or less hp – what is best for a Commercial Woodchipper?

Engine size and horsepower ratings on a Commercial Woodchipper is something that needs to be carefully considered if you are serious about optimising three key ingredients of a Woodchipper investment for your business: operating efficiencies (cost to run), ROI (return on investment) and long-term life of your Woodchipper. These three pillars are critical if you rely on your chipper as an essential part of your businesses operations and the machine is used for more than 15 hours every week of the year.

The motor on any Woodchipper consumes valuable space so using a larger motor means a few things right up – the larger the physical size of the motor, the larger the whole chipper will need to be to fit the package together – a bigger motor will also weigh more increasing the overall weight of the machine.

So size and weight are very quickly observed and we may feel as a result that using a smaller motor is better in that a more compact design can be achieved, being overall smaller in physical size and also weighing less at the same time.

So back to the three pillars of a Woodchipper investment – none of these are directly influenced by the size or weight of the machine but more importantly, the horsepower of the Chipper has a direct influence on all of these returns. The size of the motor on a Woodchipper directly corelates to the overall performance of the machine and this is where the Piranha BT300 (our 1st model released to the public) is streets ahead of anything else currently available on the market. The BT300 has been designed and made to efficiently and effectively chip 300mm timber (12”) all day long, and subsequently has the correctly sized cutter drum and enough horsepower to do so. The cutter drum on the BT300 is 650mm diameter which means the chipping action is done in the lower half of the drum (resulting in less vibrations and far better cutting efficiencies than a drum that is less than double the size of the timber it’s trying to chip) and the 5.2L electronically-controlled 4-cylinder Isuzu engine produces 197hp to easily power through anything that’s fed into it, using minimal diesel fuel at the same time! The 500-hr service intervals also dramatically reduces the overall running costs of a Piranha Chipper (and is another boost for the ROI).



We have personally tested and field-proven that if an undersized motor is fitted to a Woodchipper, when capacity-sized timber is being fed into it the motor it is on full-throttle 100% of the time, and the auto-feed is continuously cycling and waiting for the motor to get the drum back up to speed to allow chipping to recommence, there is almost no efficiency being produced as a result. Lots of fuel is being burnt, the motor is stressed and starting to wear out prematurely, and the motor also is certainly not going to last as long as it could in the correct circumstances!

The infeed of the BT300 is 390mmH X 500mmW (16” X 20”) and while it will certainly munch down a 15” log very rapidly (it has a bigger drum and more hp than the competition), Piranha have engineered and built our machines to work day in, day out and deliver on the three key pillars as the most productive 12” Woodchipper available on the market today.

The 15” Woodchipper is the most commonly sized unit used commercially today in Australia but our BT300 will out-perform and give a greater ROI on any other 15” unit currently available and that’s our promise – book a demo today and see for yourself how a Piranha Chipper can make you more productive, be cheaper to run and last longer than what you’re currently using. Our team is keen to chat and make this a reality for you! You may also be pleasantly surprised that you no longer need to buy a 15” / 18” Woodchipper when the BT300 will do all you need and more!



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