CDLK Stainless steel vertical multistage submersible pump for machine coolant

A compact, stainless-steel vertical multistage submersible pump designed specifically for circulating machine-tool coolants, lubricants and other clean process liquids in tanks and sumps. The pump is built as a self-priming, direct-coupled unit with a standard motor mounted on the pump head; multistage hydraulics deliver higher head in a small footprint while the vertical/submersible arrangement saves floor space and simplifies installation in machine-tool coolant reservoirs.

Key features

• Vertical, immersible multistage centrifugal design for continuous coolant/lubricant circulation
• Stainless-steel wet parts (as indicated) suitable for machine coolants and non-corrosive to slightly corrosive fluids (CDLK = non-corrosive, CDLKF = slightly corrosive)
• Motor shaft directly coupled to the pump shaft for reliable power transmission and compact assembly
• Optional intelligent protector available to guard against dry running, phase loss and overload
• Modular length: an optional cavity section can be added to adjust the submerged length to suit different tank depths

Typical applications

• Machine tool coolant systems (lathes, grinders, machining centers)
• Filtration and coolant recirculation systems
• Industrial cleaning equipment and condensate transfer
• Lubricant circulation and non-explosive process liquid handling where solids or fibrous contaminants are absent

Motor and electrical options

• Fully enclosed, air-cooled 2-pole standard motor
• Protection: IP55
• Insulation class: F
• Available voltages and supply types include:
  • Single-phase 50 Hz: 220–240 V
  • Three-phase variants: 200/346 V, 220–240/380–415 V, 220–225/380–440 V
• Single-phase motor power range: 0.37–2.2 kW
• Other voltages and motor configurations available on request

Operating limits and fluid compatibility

• Fluid types: thin, clean, non-explosive liquids without solid particles or fibers (water-based coolants, cutting lubricants, condensate)
• Temperature ranges:
  • Standard type: -15 °C to 70 °C
  • Hot-water type: 70 °C to 120 °C

Why choose this pump

• Engineered for machine-tool coolant environments where reliable, continuous circulation and filtration support are required
• Compact vertical footprint and submersible capability make it easy to integrate into existing sumps and reservoirs
• Configurable protections and motor options let you match the unit to your electrical system and application requirements