1️⃣ What Are Z4 Series DC Motors?
Z4 series DC motors are high-performance, heavy-duty industrial drive units designed for continuous S1 duty.
They serve as the main driving power for a wide range of heavy machinery and production lines, fully compliant with international IEC standards.
With compact structure, high power density, high efficiency, and stable commutation, they are the preferred drive for industrial scenarios requiring precise speed regulation and reliable operation.
2️⃣ Core Design & Structural Advantages
- Polygonal frame structure
- Laminated stator yoke
- Precise pole positioning
- Class F insulation system
- IP21S protection
- High-strength commutator & premium brushes
3️⃣ Multiple Cooling Systems Available
Z4 motors support diversified cooling modes to match different working conditions:
- IC06 / IC17 / IC37 — Independent forced ventilation
- IC410 — Totally enclosed frame cooling
- IC01 — Self-cooling with shaft-mounted fan
- IC666 — Air-air heat exchanger
- IC86W — Air-water heat exchanger
Fan position is optimized by frame size for maximum cooling efficiency.
4️⃣ Flexible Mounting Types
Multiple mounting structures for wide equipment compatibility:
- IM B3 — Foot-mounted (horizontal)
- IM B35 — Foot + flange mounted
- IM V1 / IM V15 — Vertical mounting
Terminal box position can be customized: right, left, or top.
5️⃣ Key Electrical Performance
- Duty: Continuous work system (S1)
- Standard voltage: 160V / 440V (customizable: 220V, 400V, 660V)
- Speed range: 20 ~ 3000 r/min (9 standard grades)
- Speed regulation:
- Excitation: Separately excited (standard 180V)
- Compensating winding: Available for middle & large frame sizes
Stable performance under acceleration, deceleration, and shock load.
6️⃣ Frame Size & Power Range
- Frame sizes: Z4-100 up to Z4-450
- Power coverage: From several kW to hundreds of kW
- Outline dimensions: IEC standard, interchangeable with imported motors
Widely used for equipment upgrade and imported motor replacement.
7️⃣ Typical Industry Applications
- Metallurgical machinery & rolling mill drives
- Metal cutting machine tools
- Paper making & printing machinery
- Textile, dyeing & finishing equipment
- Cement production lines
- Plastic extrusion machines
- Woodworking machinery
- Rubber & chemical processing equipment
Perfectly adapt to high-temperature, dusty, heavy-load industrial environments.
8️⃣ Why Choose Z4 Series DC Motors?
✔ High efficiency & energy saving
✔ Wide speed regulation range
✔ Stable commutation & long service life
✔ Strong overload capacity
✔ Compact size & light weight
✔ Fully compatible with international standards
✔ Customizable voltage, mounting, cooling, and accessories
9️⃣ Summary
If you are looking for a stable, reliable, high-performance DC drive solution for heavy industry,
Z4 series DC motors are a mature, field-proven, cost-effective choice.
It balances performance, durability, and versatility — making it one of the most popular DC drive solutions in global industrial transmission.
