性能及特点
◆ 采用钢板焊接机身，去内应力处理，钢度好；
◆ 曲轴纵放结构，结构紧凑，外型美观；
◆ 矩形六面体加长导轨，导向精度高；
◆ 组合式气动摩擦离合器-制动器，结合平稳，噪音低；
◆ JH21采用液压过载保护装置，JF21采用钢性保险器保护装置， 防止使用超载对机床造成损坏；
◆ 电路采用PLC控制，气路采用安全双联阀，动作灵敏，安全可 靠，具有单次、寸动、连续等操作规范，符合冲床安全标准；
◆ 滑块采用气动平衡装置，提高机床的平稳性和运动精度；
◆ 机床采用定时、定点、定量自动浓油润滑，润滑充分、均匀、 可靠，60T以上产品采用电动调模，数码显示；
◆ 可选配自动送料装置、光电保护装置。 Performances and characteristics
◆ Steel plates welded as machine body, treated to remove internal stress,
marked with high rigidity;
◆ Crankshaft longitudinally arranged, compact structure and beautiful outlook;
◆ Hexagonal guide rails of extra length, guide in high precision;
◆ Combined-type pneumatic friction clutch-brake, steady engagement, low noise level;
◆ Hydraulic overload protection device for JH21 and rigid protection device for JF21 to prevent damage of the machine tools due to overload;
◆ PLC-controlled electric circuit, safety duplex valve for air pipelines, flexible and highly sensitive in movement, safe and reliable, single time, inching and continuous operations for options, conforming to the safety standard for stamping machines;
◆ Slide block fitted with pneumatic balance device, enhancing the steadiness of the machine tool and its precision in operation;
◆ Machine tool fitted with automatic thick oil lubrication system, providing time and volume-controlled lubrication to each point and ensuring adequate, uniform and reliable lubrication;
◆ Automatic feeding device and photoelectric safety protection device
available as options.
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