Iwaki MD-6Z-115 Magnetic Drive Pump – High Head Mag Drive Pump and Motor Assembly (Part #MD-6Z-115)
When a system calls for a pump that just works quietly in the background without leaks, without maintenance headaches, and without wearing out a mechanical seal, the Iwaki MD-6Z-115 is the kind of pump engineers reach for again and again. Built around a magnetic coupling instead of a traditional shaft seal, this small but capable pump moves liquid through a completely sealed chamber, which means no drips, no seal replacements, and far less worry about compatibility with the fluid being handled. Its GFRPP polypropylene wet end shrugs off a wide range of chemicals, making it a dependable choice anywhere from a laboratory bench to a small industrial skid.
Paired with a compact 1/250 HP, 115V single-phase motor, the MD-6Z-115 is sized for lower-flow applications where space and quiet operation matter as much as reliability. Its high head impeller design gives it the pressure capability to push fluid through filters, coils, or longer tubing runs, which is exactly where many small pumps fall short. Whether it's supporting a chiller loop, a laser cooling circuit, an analytical instrument, or a small recirculation system, this pump was engineered to run for long stretches with minimal attention.
What makes the MD-6Z-115 stand out isn't just its construction, but how well it fits into tight equipment layouts. Its close-coupled pump-and-motor assembly keeps the footprint small, and its hose barb ports simplify installation without sacrificing a secure connection. For OEMs and end users alike, it represents a practical balance of chemical resistance, pressure performance, and long-term reliability in a genuinely compact package.
Key Features
- Sealless magnetic drive design eliminates leak-prone mechanical shaft seals
- GFRPP (glass-reinforced polypropylene) wet end for strong chemical compatibility
- High head impeller for improved pressure performance in restrictive flow paths
- Compact close-coupled pump and motor assembly
- Capacitor-run induction motor for smooth, quiet operation
- Thermal protector built into the motor to guard against overheating
- Low-maintenance operation with no seal replacement required
Applications
- Small-scale chemical transfer and dosing systems
- Laboratory and analytical instrument fluid circulation
- Laser and chiller cooling loops
- Filtration and recirculation systems
- OEM equipment requiring a compact, sealless pump
- Aquarium and hobbyist fluid transfer (non-marine industrial use as well)
- General industrial process fluid handling
Specifications
- Model / Part Number: MD-6Z-115
- Motor: 1/250 HP, 115V AC, 1 Phase
- Wet End Material: GFRPP (Polypropylene)
- Impeller Type: High head design
- Port Size: 35/64 inch hose barb (suction and discharge)
- Temperature Range: 0–80°C (32–176°F)
- Maximum Viscosity: 30 mPa·s at specific gravity of 1
- Ambient Operating Temperature: 0–40°C
- Motor Type: Capacitor-run induction motor
- Design: Fixed spindle, no shaft bearing (standard for MD-6Z series)
FAQs
Q: Can the Iwaki MD-6Z-115 handle corrosive chemicals?
A: Yes, its GFRPP wet end is designed for strong chemical resistance, making it suitable for many corrosive and aggressive fluids, though compatibility should always be checked against the specific chemical being pumped.
Q: Does this pump require regular seal maintenance?
A: No, the magnetic drive design eliminates the need for a mechanical shaft seal, which significantly reduces maintenance requirements and the risk of leaks.
Q: What is the maximum liquid temperature this pump can handle?
A: The MD-6Z-115 is rated for liquid temperatures up to 80°C (176°F), though performance may vary depending on the fluid and system conditions.
Q: Is this pump suitable for continuous duty operation?
A: Yes, it is built for long-run reliability in process, recirculation, and OEM applications, with a built-in thermal protector to prevent motor overheating.
Q: What connection type does the MD-6Z-115 use?
A: It uses 35/64 inch hose barb port connections on both the suction and discharge sides.
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