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液压油泵

马祖奇微型油泵MARZOCCHI齿轮泵U0.25R18/24/30/36/48/60KX液压泵

2026年04月21日 液压油泵 游览量:递增失败!

马祖奇微型油泵MARZOCCHI齿轮泵U0.25R18/24/30/36/48/60KX液压泵

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U0.25R18 是一款微型、高压、单向旋转外啮合齿轮液压泵(非马达),专为小流量、中高压精密液压系统设计。



一、型号含义(U0.25R18)

  • U:系列代号(微型高压齿轮泵 / 马达系列)
  • 0.25:理论排量 0.25 cm³/rev (cc/rev)
  • R:单向顺时针旋转(Right-handed,从轴伸端看)
  • 18:额定压力 18 MPa (180 bar)

二、核心技术参数

1. 排量与流量

  • 理论排量:0.25 cm³/rev
  • 额定转速:1450 rpm(标准工况)
  • 理论流量:0.36 L/min(@1450 rpm)
  • 转速范围:500 ~ 5000 rpm(连续)
  • 最高转速:6000 rpm(短时)

2. 压力性能

  • 额定工作压力:180 bar (18 MPa)
  • 峰值压力:210 bar (21 MPa)
  • 连续背压:≤ 5 bar
  • 泄油压力:≤ 1.2 bar(绝对压力)

3. 功率与效率

  • 额定输入功率:~ 0.11 kW(@180 bar, 1450 rpm)
  • 容积效率:≥ 91%(额定工况)
  • 机械效率:≥ 88%
  • 总效率:≥ 80%

4. 结构与材质

  • 结构形式:外啮合齿轮泵(2 齿轮,固定排量)
  • 壳体:高强度铝合金(轻量化、紧凑)
  • 齿轮 / 轴:渗碳淬火合金钢(高精度磨齿、耐磨)
  • 轴承:微型高压滑动轴承
  • 密封:丁腈橡胶 NBR/FKM(耐油、耐高温)
  • 旋转方向:单向(R = 顺时针)
  • 安装法兰:微型标准法兰(2/4 孔安装)
  • 轴伸形式:圆柱平键 / 花键轴(φ6~φ8mm)
  • 油口形式:微型螺纹(G1/8、UNF 1/4")
  • 重量:~ 0.8 kg(标准型)

5. 介质与环境

  • 适用介质:矿物液压油(L-HM32/46)、合成油
  • 介质粘度:10 ~ 80 mm²/s (cSt)
  • 工作温度:-20℃ ~ +90℃
  • 清洁度:NAS 9 级以上(建议≤10μm 过滤)

三、结构特点

  • 超微型紧凑:体积小、重量轻,适配空间极受限设备
  • 高压小流量:18MPa 高压,0.25cc 排量,精准微流量输出
  • 单向稳定:R 型单向旋转,结构简单、可靠性高、寿命长
  • 低噪音低脉动:精密齿轮啮合,运转平稳、振动小
  • 耐磨长寿命:合金钢齿轮 + 高压轴承,抗磨损、连续稳定
  • 易安装维护:标准微型接口,通用互换、维护简便

四、典型应用场景

  • 精密液压系统:精密夹具、伺服液压、微量润滑系统
  • 医疗器械:医疗设备液压驱动、精密给药、手术器械
  • 航空航天:机载微型液压、飞行器控制、精密作动
  • 汽车工业:自动变速箱控制、液压制动、座椅调节
  • 精密机床:微量润滑、主轴冷却、液压夹紧
  • 仪器仪表:测试设备、液压校准、压力源
  • 小型机器人:关节驱动、精密执行、微型液压动力

五、安装与使用要点

  • 旋转方向:R 为顺时针(轴伸端看),不可反转
  • 泄油口:单独回油箱,无压回油,禁止背压
  • 油口连接:严格区分进油口(低压)、出油口(高压)
  • 润滑保护:启动前注油润滑,避免干磨
  • 压力控制:系统压力≤180 bar连续工作
  • 过滤精度:≤10μm,防止杂质磨损

六、同系列替代型号

  • U0.15R18(排量 0.15 cc/rev,更小流量)
  • U0.25L18(L = 逆时针旋转,同排量)
  • U0.25R21(压力 21 MPa,加强型)
  • U0.35R18(排量 0.35 cc/rev,更大流量)

七、选型提示

  • 排量匹配:0.25 cc/rev,适配微流量需求
  • 压力等级:180 bar额定,中高压精密系统
  • 旋转方向:R = 单向顺时针
  • 安装空间:微型结构,超紧凑设备首选
  • 工况适配:高速、微流量、高压精密场景

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