产品主要技术参数Product main technical parameters：
| 主要技术参数要技术参数 | SPECIFICATIONS | Units | CJM280 |
| 床身上最大回转直径 | Swing over bed | mm | 280 |
| 横滑板上最大回转直径 | Swing over cross slide | mm | 165 |
| 最大工件长度 | Distance between centers | mm | 500(Optional:750) |
| 主轴孔径范围 | Spindle bore | mm | 38 |
| 主轴孔径锥度 | Spindle bore taper | - | MT5 |
| 主轴转速级数 | Spindle speed steps | - | 8 |
| 主轴转速范围 | Spindle speed range | rpm | 90-1800 |
| 托板行程 | Cross slide travel | mm | 140 |
| 小刀架行程 | Top tool post travel | mm | 75 |
| 纵向进给量 | Longitudinal feeds range | mm/r | 0.05-0.35 |
| 横向进给量 | Cross feeds range | mm/r | 0.025-0.18 |
| 公制螺纹种数 | Kinds of metric threads | kinds | 18 |
| 公制螺纹螺距范围 | Range of metric threads | mm/r | 0.2-3.5 |
| 英制螺纹种数 | Kinds of inch threads | kinds | 34 |
| 英制螺纹范围 | Range of inch threads | T.P.I. | 41/2-48 |
| 模数螺纹种数 | Kinds of module threads | kinds | 16 |
| 模数螺纹范围 | Range of module threadsr | MP | 0.20-1.75 |
| 径节螺纹种数 | Kinds of pitch threads | kinds | 24 |
| 径节螺纹范围 | Range of pitch threads | DP | 16-120 |
| 尾架套筒行程 | Tailstock quill travel | mm | 60 |
| 尾座套筒锥孔 | Tailstock quill taper | - | MT3 |
| 主电机功率 | Main motor power | kw | 0.75 |
| 机床重量Machine weight | Weight for 500 | kg | 300 |
| Weight for 600 | kg | - | |
| Weight for 700 | kg | - | |
| Weight for 750 | kg | 320 | |
| 外形尺寸Overall dimension | Dimension for 500 | mm | 1200×650×1200 |
| Dimension for 600 | mm | - | |
| Dimension for 700 | mm | - | |
| Dimension for 750 | mm | 1450×650×1200 |
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