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瑞典BM Volvo公司制造的SM-880型打枝造材联合机于六十年代问世,目前已被北欧各国采用。这种打枝造材联合机只需一人操纵,可将伐倒木抓起自动打枝,同时,按预定长度造材效率为每小时处理伐倒木100—120株,即每小时加工14.17立方米。为了充分地利用木材,驾驶员可根据每株树的具体情况,通过按纽控制,进行造材。这种打枝造材联合机的工作过程是:起重臂与爪长12米,可在转盘上旋转270°,以便抓起各个方向的伐倒木。当抓起伐倒木时,爪两侧的两只刀斧进行预打枝,然后将立木放在压紧装置上,打枝器再自动进行打枝(同时抓臂
The SM-880 tie-up machine made by the Swedish company BM Volvo was introduced in the 1960s and is now adopted by all Nordic countries. Only one person can manipulate this type of timbering and grafting machine, which can automatically cut the grafted timber and at the same time process 100-120 pieces of cut down timber per hour according to the expected length of timbering efficiency, ie 14.17 cubic meters per hour. In order to make full use of wood, the driver can according to the specific circumstances of each tree, through the button control, the material. The working process of this type of joint production machine is that the boom and the claws are 12 meters long and can rotate 270 degrees on the turntable so as to grab the fallen logs in all directions. When starting to cut the fallen wood, the two axes on both sides of the claws are pre-stuck, and then the standing wood is placed on the pressing device, and the looper is automatically grasped