The document introduces the XP mobile wood chipper produced by Zhangqiu Yulong Machine Co., Ltd. It can efficiently chip log wood, branches, and other wood materials into pieces that are 10-30mm in size. The XP chipper uses a diesel engine so it does not require electricity and can operate outside and in forests. It comes with wheels that allow it to be easily moved by tractor. The wood chips produced are used as fuel for boilers and stoves. The document also provides specifications for three XP chipper models with varying horsepower and output capacities.