
MTH4‑4/4 A‑W‑A‑AQQV Vertical Multistage Centrifugal Pump, Machine Tool Coolant Pump
Wuhan Xinlaifu Hydraulic Equipment Co., Ltd. is one of the leading manufacturers and suppliers of mth4‑4/4 a‑w‑a‑aqqv vertical multistage centrifugal pump, machine tool coolant pump in China. With abundant experience, we warmly welcome you to buy high quality customized products at competitive price from our factory. Also, OEM&ODM service is available.
Technical specifications

| Item | Specification |
|---|---|
| Part Number | MTH4‑4/4 A‑W‑A‑AQQV |
| Product Type | Vertical Multistage Centrifugal Coolant Pump |
| Applicable Machine | CNC Machine Tools, Machining Centers |
| Brand Reference | OEM equivalent replacement |
| Application | Machine tool cooling lubricant circulation |
| Gear Structure | N/A |
| Material | Stainless steel & alloy |
| Output Torque | N/A |
| Working Pressure | High‑pressure coolant service |
| Installation Form | Tank‑mount immersible vertical |
| Working Condition | Continuous industrial duty |
| Sealing Type | AQQV shaft seal |
| Weight | See datasheet |
| Remark | Direct drop‑in replacement |
Product Overview
MTH4‑4/4 A‑W‑A‑AQQV Vertical Multistage Centrifugal Coolant Pump is a tank‑mount immersible pump designed for CNC machine tool cooling‑lubricant circulation. This OEM‑equivalent replacement pump features AQQV shaft seal, supports continuous‑duty high‑pressure fluid delivery for metal‑working equipment.
Designed for vertical tank installation, the unit delivers stable pressure output for industrial coolant loops. It serves as direct drop‑in substitute for the original pump, ideal for machining centers and other machine‑tool fluid supply systems.
Features and Advantages
- Vertical multistage centrifugal structure, compact tank‑mount immersible design, saves installation space for machine‑tool fluid tanks
- AQQV dedicated shaft seal construction, good resistance to cooling lubricant media for long‑term stable operation
- Supports continuous‑duty running, delivers consistent high‑pressure coolant flow for metal‑working systems
- OEM‑equivalent drop‑in replacement, matches MTH4‑4/4 A‑W‑A‑AQQV original mounting dimension
- Robust stainless steel & alloy material construction, adapts to harsh industrial workshop working conditions
- Simple vertical installation, convenient maintenance for CNC machine and machining center fluid loops
Typical applications
- CNC machine tool cooling lubricant circulation
- Machining center coolant fluid supply
- Metal‑working equipment process fluid delivery
- Industrial machine tank‑mounted coolant circulation systems



Q1: What is MTH4‑4/4 A‑W‑A‑AQQV pump used for?
A: MTH4‑4/4 A‑W‑A‑AQQV is a vertical multistage centrifugal coolant pump for CNC machine tool cooling‑lubricant circulation.
Q2: Is MTH4‑4/4 A‑W‑A‑AQQV a direct drop‑in replacement pump?
A: Yes, this unit is OEM‑equivalent drop‑in replacement matching original mounting dimensions of MTH4‑4/4 A‑W‑A‑AQQV.
Q3: What does AQQV mean in MTH4‑4/4 A‑W‑A‑AQQV model suffix?
A: AQQV stands for the dedicated shaft seal configuration resistant to machine‑tool cooling lubricants.
Q4: What is the installation style for MTH4‑4/4 A‑W‑A‑AQQV coolant pump?
A: It adopts tank‑mount immersible vertical installation for machine tool fluid tanks.
Q5: Can MTH4‑4/4 A‑W‑A‑AQQV run continuously under industrial working conditions?
A: Yes, it is designed for long‑time continuous‑duty operation for metal‑working equipment.
Q6: What media can MTH4‑4/4 A‑W‑A‑AQQV centrifugal pump handle?
A: Mainly for machine‑tool cooling liquids and lubricant fluids in workshop environment.
Q7: Which machines are compatible with MTH4‑4/4 A‑W‑A‑AQQV pump?
A: Suitable for CNC machine tools, machining centers and other metal‑working processing equipment.
Q8: What material is MTH4‑4/4 A‑W‑A‑AQQV coolant pump made of?
A: Constructed with stainless steel pump body and alloy impeller for industrial harsh workshop conditions.
Main Specifications
| Item | Specification |
|---|---|
| Part Number | MTH 4‑4/4 A‑W‑A‑AQQV |
| OEM Product No. | 98993044 |
| Product Type | Vertical Multistage Centrifugal Immersible Coolant Pump |
| Applicable Machine | CNC Machine Tools, Machining Centers |
| Brand Reference | Grundfos original equivalent replacement |
| Application | Machine‑tool cooling lubricant & emulsion circulation |
| Gear Structure | N/A |
| Material | Pump housing: Cast iron EN‑GJL‑200; Impeller: Stainless steel AISI 304 |
| Output Torque | N/A |
| Working Pressure | Max 10 bar |
| Installation Form | Tank‑mount immersible vertical installation |
| Working Condition | Continuous industrial duty; Ambient temp ‑10 ~ +60 °C; Liquid temp ‑10 ~ +90 °C |
| Sealing Type | AQQV shaft seal |
| Stages | 4 stages |
| Rated Flow | 83.3 L/min (26.4 US gpm) |
| Rated Head | 26.3 m |
| Rated Power P2 | 1.1 kW / 1.48 HP |
| Rated Speed | 3435 rpm |
| Frequency | 50/60 Hz dual‑frequency compatible |
| Rated Voltage | 3 x 220‑255D / 380‑440Y V |
| Outlet Connection | Rp 3/4‑inch |
| Immersion Depth | 199 mm |
| Enclosure Class | IP54 |
| Net Weight | 11.5 kg (25.4 lb) |
| Remark | ISO9906:2012 3B performance tolerance, CE approved |
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