集材拖拉机，拖拉机的一种，专用于林区集运木材的机械。同农用拖拉机相比，它具有较高的通过性和机动性，并装备专门的集材装置。
本实用新型公开了一种可除雪的集材拖拉机，可进行除雪绞集、牵引等。
The utility model discloses a skidder capable of removing snow, which is used for removing snow twisting, drawing, etc.
本文介绍如何拆下集材拖拉机搭载板，安装架杆，利用绞盘机、钢索及架杆滑轮装卸货物。
This paper introduces how to dismantle yarding tractor loading board, install trestle pole and use tightwire and chain wheel to load and unload cargo.
并以集材-50拖拉机为例对空车上坡、满载下坡、满载上坡等工况进行了计算和分析。
Taking the J-50 tractor as an example, the different working situations of the tractor (such as: tractor uphill without load, full loaded tractor downhill or uphill) were calculated and analysed.
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