You can use this walnut cracker machine to crack English walnut, black walnut, pecan, and hazelnut, almond, macadamia nut, etc. It is an ideal. Once the machine is set for the overall average pecan in the batch it can crack over 35 lbs. per hour. The shell out of halves is 85 – 90% and is based upon. Pecan Cracking Machine- 35lbs of shelling power per hour- Also for English For Pecans, English Walnuts or Peanuts; 35lbs of cracking power per hour.