HALS / Hansung Precision machine tool coolant pumps and lubrication systems

Industrial equipment from HALS / Hansung Precision is engineered for dependable cutting fluid delivery across CNC machine tools and centralized automated machinery lubrication.

Immersion coolant pumps HALS / Hansung Precision HCP-F series

Immersion centrifugal pumps HALS (Hansung Precision) HCP-F series are engineered for continuous coolant supply to cutting zones of CNC milling and turning machines. The hydraulic section operates submerged directly in the machine tool coolant tank.

  • Separated motor and pump shaft structure eliminating mechanical wear and shaft seal degradation
  • Engineered for water-soluble cutting fluids and low-viscosity mineral oils under 32 cSt
  • Nominal flow capacity ranges from 25 to 200 liters per minute with discharge head of 2 to 6 meters
  • Standard portfolio includes model variants HCP-60F, HCP-100F, HCP-180F, HCP-250F, and HCP-400F

Self-priming coolant pumps HALS / Hansung Precision HCP-S series

Compact monobloc coolant pumps HALS (Hansung Precision) HCP-S series are mounted outside the coolant tank, delivering dependable self-priming suction through piping without requiring pre-filling of fluid before start-up.

  • Integrated wear-resistant mechanical seal preventing fluid ingress into electric drive components
  • Compact monobloc design optimized for machine tools with confined fluid tank compartments
  • Total discharge head up to 5 meters with stable coolant delivery up to 130 liters per minute
  • Portfolio encompasses model configurations HCP-60S, HCP-100S, HCP-180S, HCP-250S, and HCP-400S

Multi-stage high pressure pumps HALS / Hansung Precision HCP-EMS series

Multi-stage immersion pumps HALS (Hansung Precision) HCP-EMS series are developed for high-pressure through-spindle cooling, deep hole drilling operations, and high-velocity precision milling across advanced machining centers.

  • Precision impellers and stage diffusers fabricated from corrosion-proof stainless steel alloys
  • Discharge pressure capability up to 2.5 MPa ensuring thorough chip evacuation from deep cavities
  • High-efficiency electric drives from 0.4 to 2.2 kW engineered for continuous factory duty cycles
  • Series variants encompass models HCP-250EMS, HCP-400EMS, HCP-750EMS, and HCP-1100EMS

High-head immersion coolant pumps HALS / Hansung Precision HCP-F HP series

Specialized high-head immersion pumps HALS (Hansung Precision) HCP-F HP series (models HCP-418F, HCP-419F, HCP-428F) are engineered for extended coolant delivery lines, surface grinding machines, and automated workpiece flushing.

  • Elevated discharge head up to 18 meters while retaining standard compact mounting flange sizes
  • Streamlined internal flow geometry reducing fluid turbulence and thermal rise in cooling loops
  • Reinforced bearing assemblies engineered to withstand heavy radial and axial dynamic loads
  • Direct mounting compatibility with machine tools from Doosan, Hyundai Wia, and Hwacheon

Suction inlet strainers HALS / Hansung Precision HCS series

Suction inlet line strainers HALS (Hansung Precision) HCS series attach to intake ports of immersion and self-priming coolant pumps, protecting hydraulic components against metal swarf, chips, scale, and abrasive contaminants.

  • Stainless wire mesh screen elements offering filtration ratings from 60 to 150 mesh
  • Prevent impeller jamming and premature hydraulic wear from recirculating metal debris
  • Detachable metal housing structure enabling rapid washing and cleaning during maintenance
  • Connecting thread dimensions PT 3/8, PT 1/2, PT 3/4, and PT 1 inch matching HCP series pumps

Automated lubrication pumps HALS / Hansung Precision HMGP series

Centralized lubrication units HALS (Hansung Precision) HMGP series provide metered cyclic delivery of lubricating oil and fluid grease to linear guideways, spindle bearings, and ball screw mechanisms of production machine tools.

  • Integrated digital interval timer and pressure switch enabling automated lubrication cycles
  • Low-level float switch transmitting alert signals to CNC controller during lubricant depletion
  • Transparent impact-resistant tank from 2 to 6 liters for immediate visual oil level inspection
  • Direct pairing with positive displacement and progressive distributors HALS HMV and HMLV series

Hydrodynamic characteristics and sealless layout of HCP-F immersion pumps

Immersion centrifugal machine tool pumps HALS (Hansung Precision) HCP-F series deliver continuous cutting fluid supply to machining tools. The hydraulic assembly operates submerged directly inside the machine fluid reservoir, avoiding suction priming requirements before activation.

Motor and hydraulic stages connect via an extended shaft layout without mechanical face seals in wet zones, preventing leakage risks and abrasive seal degradation from recirculated metallic particles.

Dynamically balanced closed impellers ensure uniform emulsion delivery without pressure pulsation, protecting tool cutting edges from micro thermal shocks.

Self-priming mechanism and mechanical face seal of HCP-S pumps

Monobloc self-priming coolant pumps HALS (Hansung Precision) HCP-S series are engineered for exterior mounting on machine tool beds or auxiliary coolant tanks.

The integrated vacuum chamber and precision diffuser establish dependable self-priming suction, drawing emulsion rapidly through external piping without requiring foot check valves.

To protect electric motor windings against fluid ingress, the pump incorporates a wear-resistant silicon carbide and graphite mechanical face seal. Compact exterior dimensions allow seamless mounting in confined machine bays of turret lathes and drilling systems.

Multi-stage high pressure architecture of HCP-EMS coolant pumps

Demanding machining tasks including deep hole drilling and high-velocity milling require high pressure coolant delivery from HALS (Hansung Precision) HCP-EMS series.

The segmented hydraulic assembly incorporates sequential stages fabricated from austenitic stainless steel alloys, generating dependable fluid pressures up to 2.5 MPa. High discharge pressure ensures prompt chip flushing through internal tool channels, preventing swarf welding on tool tips.

Dynamic balancing of the multi-stage rotor minimizes operational vibrations, preserving surface finish quality and extending spindle service intervals.

Engineering criteria for immersion depth and flange selection

Correct replacement and retrofit of HALS (Hansung Precision) coolant pumps require precise verification of tank immersion depth and mounting flange dimensions.

The manufacturer provides HCP-F and HCP-EMS models with immersion stem lengths ranging from 100 to 350 millimeters to suit specific reservoir depths. The suction intake should remain at least 25 to 30 millimeters above the tank bottom to avoid drawing settled sludge or coarse chips.

Mounting flange bolt patterns match standardized reservoir openings on Korean, Japanese, and European machine tools for rapid installation.

Coolant filtration standards and hydraulic protection with HCS filters

Reliable long-term operation of HALS (Hansung Precision) coolant pumps depends on maintaining fluid cleanliness and allowable viscosity thresholds. HCP pumps are engineered to circulate water-soluble cutting emulsions and light lubricating oils with kinematic viscosity below 32 cSt.

Higher oil viscosities increase flow resistance, causing reductions in discharge volume and total head.

To protect rotating impellers against coarse chips and abrasive debris, an HCS series inlet mesh filter must be fitted to the intake port, trapping particulate matter larger than 100 to 150 microns.

Integration of HMGP centralized lubrication units into CNC machine controls

Alongside coolant pumps, Hansung Precision produces HALS HMGP series automatic lubrication units for metered cyclic delivery of oil and fluid grease to machine slideways and ball screws. The unit features an electronic interval controller and an integrated pressure monitoring switch.

If an abnormal operating condition occurs, such as system pressure dropping below set limits or reservoir oil depletion, the station immediately outputs a discrete fault signal to the machine CNC. This permits prompt feed motion interlocks, shielding slideways and ball screws against dry friction.

Industrial equipment

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