矿用120型气动带式锯在煤矿的使用越来越广泛，因为120手持式气动带锯具备以下特点：
1、气动带锯采用井下压缩空气作为工作介质，适用于掘进或采煤工作面各种工作；
2、手持式气动线锯结构强度高，耐冲击，适应井下恶劣工作；
3、小型带锯机风冷结构和转速设计避免了切割火花的产生；
4、防爆气动线锯在井下危险中使用时可使用外注水或者乳化液对锯条进行冷却，使用寿命，同时火花隐患；
5、往复气动金属切割锯采用循环式锯条进行切割，切割速度快，切割尺寸范围大；
6、气动线锯切割直径较大材料或连续作业时间较长可以采用支架支撑，大大劳动强度，工作的性。
7、小型气动线锯体积小，重量轻，便于井下。
The 120 pneumatic band saw is more and more widely used in coal mines, because the 120 hand-held pneumatic band saw has the following characteristics: 1. The pneumatic band saw uses underground Compressed air as working medium, it is suitable for all kinds of work in driving or coal mining working face. 2. The hand-held pneumatic wire saw has high strength, impact resistance and is suitable for the bad work underground. 3. The air cooling structure and rotation speed design of small band saw can avoid the generation of cutting sparks 4, explosion-proof pneumatic wire saw can be used in underground dangerous use of water or emulsion to cool the saw blade, service life, at the same time spark hidden trouble 5, reciprocating pneumatic metal cutting saw using circular saw blade to cut, cutting speed, cutting size range; 6, pneumatic wire saw cutting diameter larger materials or longer continuous operation time can be used support, great labor intensity, working performance. 7. Small pneumatic wire saws are small in size, light in weight, and easy to work underground.
气动线锯使用方法：
1、了解所需切割的材料，如有必要可以通过降低空气压力来降低锯片的转动速度。
2、确保牢固固定了所需切割的材料，防止其移动。
3、气动空气马达时，用手指按压阀杆，然后开始切割。
4、用锯的重量来控制切割压力。对于较软的材料来说，这样的重量已经足够。过多的压力会降低锯片的速度。对于较硬的材料，可以通过加压的方式来降低锯片的转动速度。切割是保持锯笔直。锯片的任何扭曲或歪斜都可能降低其使用寿命。注意：避开切割后可能掉落的碎片。切割即将完成时，切勿使锯碰到您的身体、工件或附近的其它人员。
5、关闭空气马达时，释放阀杆。
6、下次切割开始前，锯片必须保持运动状态。气动锯时，锯片不能接触任何表面。
7、断开空气软管时，关闭空气软管阀。断开前，先打开空气阀给软管减压。
8、更换锯片前，务必断开空气软管，并推动阀杆以释放掉马达内的压力。
9、顺时针转动调整手柄以便释放锯片导杆上的张力。然后释放侧面板的锁以便打开侧面板。然后从驱动轮上取下锯片并将其从锯带导杆上松开
Pneumatic wire saw use method: 1, know the required cutting materials, if necessary can reduce the air pressure to reduce the saw blade rotation speed. 2. Ensure that the required cutting material is firmly secured to prevent movement. 3. For Pneumatic Air Motors, press the stem with your finger and start cutting. 4. Use The weight of the saw to control cutting pressure. This weight is sufficient for softer materials. Too much pressure will slow down the saw blade. For hard materials, the saw blade rotation speed can be reduced by applying pressure. Cutting is to keep the saw straight. Any distortion or skew of the saw blade may reduce its service life. Note: avoid debris that may fall off after cutting. When cutting is about to complete, do not let the saw touch your body, work-piece or other people nearby. Release stem when closing air motor. 6. The blade must remain in motion until the next cut begins. In pneumatic saws, the blade must not touch any surface. When you disconnect the Air Hose, close the Air Hose Valve. Before disconnecting, open the Air Valve to decompress the hose. Before replacing the blade, be sure to disconnect the air hose and push the stem to relieve pressure in the motor. 9. Turn the adjustment handle clockwise to release tension on the Blade Guide Rod. Then release the lock on the side panel to open the side panel. The blade is then removed from the drive wheel and released from the band guide Rod
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