Northtech convinently shows the weight of their 610XL equipped with higher 30/30 horsepowers against our Standard XP equipped with standard 25/20 horsepowers. If they would compare our similar machine the weights would be more similar.

Northtech says that Extrema machines use 3600 RPM motors on our XP-225 and Northtech uses the 1720 RPM motors. In fact our XP-225 double surfacers use the same 1720 RPM motors as does Northtech. Even if we did use the 3600 rpm motors this should not be an issue. This is not true statement and an attempt by Northtech to make their machines look better.

Northtech states that they use 6 cog type drive belts on their 610XL and Extrema uses 4 standard v belts on the XP-225. The first part of this statement is deceptive and the second part is just not true. Extrema uses 5 drive belts on the XP-225 and Northtech does use 6 belts, but they are comparing it to their higher horsepower double surfacer. Extrema does not have a higher horsepower XP-225. This would be very easy to just add more horsepower but we chose to make a heavier duty series of machine to handle this type of horsepower. It is our Magnum Series.

Northtech uses cog type belts and Extrema uses standard v-belts. This is correct, but deceptive. The use of cog type belts is just a gimmick that Northtech is using to promote their machine. They say that it gives a 60% improvement which is just not true. In fact Gates Rubber Company technical information library states that the efficiency of cogged belts over standard belts is less than 1%, and will just result in an increased cost. This is the reason Extrema uses standard v-belts. When we design any machine we heavily rely on “cost vs benefit” This is only a gimmick from Northtech with no benefit to the customer. We do use standard belts. We believe in using as many standard components as possible to lower the operation cost of our machines and availability of parts for years to come.

Northtech states that their motor pulleys are twice the diameter as the motor pulley used on the XP-225. Well our motor pulley diameter is a hefty 12”. Does this mean that Northtech's motor pulley is 24” in diameter. This is not true. 24” diameter would be the size of a car tire. But anyway this is just another attempt to make their machine look better.

Northtech says that their bearings are of heavier duty. In fact our bearings are world reknown SKF brand made in Italy, ZC3 motor grade quality, #6308. They also state that their cutter head shaft size is larger. They even show a photo of our shaft being smaller. This is a deceptive act because they show the end of our shaft that is cut down for a handle and is not the larger part near the cutter head that the bearings are fit to. Northtech states that their shaft size is 1.575”. In fact this is the exact same size as the Extrema XP-225. Our shaft size is also 1.575”