The Grundfos MTRE 45 Variable-Speed Immersible Coolant Pump (MTRE 45) is part of the Grundfos MTRE range, engineered in 304 stainless with E-motor. Drive: Integrated MLE permanent-magnet IE5 motor with VFD. Used in Variable-flow coolant delivery and similar applications.
Specifications
| Construction | 304 stainless with E-motor |
| Motor | Integrated MLE permanent-magnet IE5 motor with VFD |
| Brand | Grundfos |
| Model | MTRE 45 |
| Country of Origin | Denmark / USA (varies by model) |
Materials of Construction
304 stainless wetted parts; integrated MLE E-motor
Typical Applications
- Variable-flow coolant delivery
- high-pressure through-spindle coolant
- filter back-wash with proportional control
Datasheets & Manuals
Industries & Applications
The Grundfos MTRE 45 is widely deployed across these industries and use cases:
- High-pressure through-spindle coolant (tsc)
- Variable-flow coolant for multi-spindle machines
- Precision flow control for grinding operations
Related & Compare
Frequently Asked Questions
- What materials of construction are available for the MTRE 45?
- 304 stainless wetted parts; integrated MLE E-motor
- What applications is the Grundfos MTRE 45 suitable for?
- Variable-flow coolant delivery, high-pressure through-spindle coolant, filter back-wash with proportional control
- Is the Grundfos MTRE 45 available with stock or quick-ship lead times?
- Many configurations ship from stock through Grundfos USA. Contact ForeverPure Place for current lead time on your specific configuration.
- How do I get a quote for the Grundfos MTRE 45?
- Use the Request Quote button on this page, call our sales team, or email sales@foreverpureplace.com with model, voltage, materials, seal type and quantity.
Need help selecting the right MTRE 45 configuration, NEMA motor, materials or seal type? Contact our pump engineering team for sizing assistance, pricing and lead times.
Accessories for This Pump
Commonly specified alongside Grundfos E-pumps. Send us your pump nameplate and we will confirm the correct part for your exact build and voltage before you order.
- RPI Inlet Pressure Sensor
Inlet pressure protection with low-suction shutdown. 
VFS Flow & Temperature Sensor
Flow and temperature feedback to the pump’s onboard controller.- RPS Pressure Sensor
Discharge pressure feedback for constant-pressure booster control.
Building-automation connectivity
This pump accepts a Grundfos CIM interface card (or an external CIU box) to report to a BMS or PLC. All eight are the same card with a different protocol — choose the one your building system speaks:
CIM/CIU 100 GENIbus · CIM/CIU 150 PROFIBUS DP · CIM/CIU 200 Modbus RTU · CIM/CIU 250 Modbus TCP · CIM/CIU 300 BACnet MS/TP · CIM/CIU 500 EtherNet/IP · CIM/CIU GRM · CIM/CIU LonWorks