The count method of the pressure ability and torque ability of crank press has been introduced with the relation of the two kinds ability of the crank press and force - angle curve gained by analyzing and computing the data of ja21 - 18 crank press ability 摘要介绍了曲柄压力机的压力能力、扭矩能力的计算方法，并通过对ja21 - 18型曲柄压力机的能力分析计算，得出此种压力机两方面能力分别与力转角曲线图的关系。
