油式润滑的真空帮浦，其最终真空压力可达20mbar ， 且全部吸入的容积从每小时3M-250M立方。将压力计与真空帮浦开关结合在一起，自动式的开关 可让帮浦在压力不足时才会作动，压力足够时即停止。过热保护装置，防止开关与电路板因过热而损坏。空气滤净器可防止杂屑进入真空帮浦(内含可替换滤芯)。请小心真空组件与机器上应用的搭配，可保证无状况寿命长久。当吸入切消液时，底部排水缧丝旋开，即可排除。3M长的电源线搭配CEE或SCHUKO插头。

MODULAR VACUUM UNITS 模块式真空组件
结合储气与水过滤器功能，不需再追加分离器。
所有配件以节省空间为原则组装而成。
可全部检视水过滤，以及储气状态提升安全性。
若要改变较大的储气状态只需更换储气桶。
结合空气滤净器，杂屑分离器过电保护，自动压力改变开关。 
目前有6M-63M立方帮浦、无油压式帮浦可供选择。

VACUUM PUMPS AND UNITS
We have all different kinds of vacuum pumps available to meet each individual need. Size and capacities range from 3m³/h - over 500 m³/h to guarantee optimal vacuum clamping fixtures whatever the circumstances.
Liquid ring pumps
Witte offers a liquid ring pump which combines vacuum supply and liquid separator in one. This pump filters gathering coolant during machining process and integrates it into its own water cycle excess fluid is returned to cycle of machining center.
Vacuum units
Operating vacuum required can be generated in many ways. Witte vacuum units feature the following:
Oil lubricated vacuum pumps with an end vacuum rate of 0,1 mbar absolute at full suction
Integrated pressure difference switch, which automatically switches the vacuum pump on or off thereby ensuring vacuum during machining, avoiding unnecessary idle running
Protection switch which safeguards electric motor from overheating
Air filter which protects pump from dirt (made of acrylic glass with an exchangeable air filter cartridge)
Careful assembly of compatible components guarantee trouble-free and almost maintenance-free operation using Witte vacuum units in many applications
Drainage screw for coolants which have been sucked in
3m connecting cable with CEE or Schuko plug