产品特点
GD-5020*外圆磨床，用于磨削内、外圆柱形和圆锥的工单件、批量生产使用的车间；头架由变频电机驱动，可无级变速；
机床工作台纵向移动可由液压无级传动，也可手轮传动，砂轮横向移动具有液压快速度进退和手动进给功能。
产品参数
| 技术参数（Technical parameters） | 单位Unit | GD-5020A | GD-5020B |
| 外圆磨削范围O.D grinding range | mm | Φ8~200 | Φ8~200 |
| 内圆磨削范围ID grinding range | mm | ------ | Φ13~100 |
| 中心高 Center height | mm | 135 | 135 |
| 头架主轴转速Work head spindle speed | r/min | 50Hz：25~380 stepless | 50Hz：25~380 stepless |
| 工作台大移动量Max travel of workbench | mm | 650 | 650 |
| 液压移动速度 Hydraulic travel speed | m/min | 0.1~4 | 0.1~4 |
| 大工作重量 Max workpiece weight | kg | 50 | 50 |
| 可磨长度外圆/内圆Griding lenth of OD/ID | mm | 500 | 500/125 |
| 工作台转动范围The workbench rotation range | ° | -5~+9° | -5~+9° |
| 砂轮大线速度Wheel peripheral velocity | m/s | 38 | 38 |
| 外圆砂轮尺寸External grinding wheel size | mm | MaxΦ400x50xΦ203 MinΦ280x50xΦ203 | MaxΦ400x50xΦ203 MinΦ280x50xΦ203 |
| 内圆主轴转速 Inner spindle speed | r/min | ------ | 16000 |
| 头尾架Tail stock taper morse | morse | NO.4 | NO.4 |
| 电机总容量Motor total capacity | kw | 5.625 | 5.625 |
| 机床外型尺寸(长x宽x高)Machine size(L×W×H) | mm | 2500x1600x1500 | 2500x1600x1500 |
| 机床重量Machine weight | kg | 2500 | 2500 |
| 主要附件Main accessories | 数量Quantity | ||
| 冷却液箱Cooling tank | 1套(1set) | ||
| 砂轮压紧盘Grinding wheel pressing plate | 1套(1set) | ||
| 三爪卡盘Three jaw chuck | 1套(1set) | ||
| 桃子夹头Peach chuck | 1套(1set) | ||
| 支点底座Support point base | 3件(3 pieces) | ||
| 内磨接长轴Internal grinding and connecting shaft | 2套(2sets) | ||
| 砂轮修整器Griding wheel dresser | 1套(1set) | ||
| 砂轮平衡轴Grinding wheel balance shaft | 1套(1set) | ||
| 开式中心架Open center frame | 1套(1set) | ||
| 合金Alloy head center | 2件(2pieces) | ||
| 卡盘座Chuck seat | 1件(1piece) | ||
| 特殊附件Special accessories | 数量Quantity | ||
| 砂轮平衡架Wheel balancing device | 1套(1set) | ||
| 圆弧修整器 Arc dresser | 1套(1set) | ||
| 闭式中心架Closed center frame6 | 1套(1set) | ||
| 工作精度Work precision | 参数 | ||
| 圆度（外圆/内圆）Roundness(O.D/I.D) | 0.002/0.005mm（O.D/I.D） | ||
| 表面粗糙度（外圆/内圆）The surface roughness(O.D/I.D) | Ra0.32/0.63µm（O.D/I.D） | ||
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