Z4-250-41 90kw 440V Direct Current DC Motor

Brief Introduction

The SIMO Z4 series direct current dc motor represents a benchmark in modern DC motor technology, purpose-built by Xi'an SIMO Motor Co., Ltd. to deliver exceptional performance, precise control, and unmatched reliability in the most challenging industrial environments. Renowned for their robust construction, advanced design, and consistent output, these motors have become the preferred choice for applications requiring variable speed, high torque, and seamless integration with control systems.

At the heart of the Z4 series direct current dc motor lies a precision-engineered design optimized for direct current operation. These motors are built to meet the rigorous JB/T6316 industrial standard, with power ratings like the 90kW Z4-250-41 model, operating at 440V and 234A, and offering a wide adjustable speed range of 600–1600 r/min. The independent excitation (SEP.315) design, paired with a controlled excitation current of 9.3A, ensures stable torque output across the entire speed range, eliminating common issues like cogging and speed drift. This makes the Z4 series ideal for applications that demand precise speed regulation, such as rolling mills, conveyor systems, and heavy machinery drives.

Durability and reliability are hallmarks of the SIMO Z4 series. The motor features Class 155 (F) thermal insulation, providing superior resistance to heat and electrical stress, while the IP21S protection grade safeguards against solid objects and dripping water, making it suitable for use in factory floors and industrial facilities. High-quality C3 clearance bearings (6318/C3 on the drive end and 6216/C3 on the non-drive end) minimize vibration and noise, extending service life even under continuous S1 duty cycle operation. The motor's cast iron frame, precision-machined components, and balanced rotor ensure stable, low-vibration performance, reducing maintenance requirements and downtime.

The Z4 series is engineered for seamless integration with modern industrial control systems. Its IC 06 cooling system effectively dissipates heat, preventing overheating even at low speeds, while the IM B3 foot-mounted configuration offers flexible installation options. With CE certification and compliance with international safety standards, these motors meet the strict requirements of global industrial markets. The 1170kg 90kW model, for example, is built to withstand harsh operating conditions, including ambient temperatures from 0–40°C and altitudes up to 1000m, ensuring reliable performance in diverse environments.

One of the key advantages of the SIMO Z4 series direct current dc motor is its exceptional energy efficiency and low operational cost. The motor's optimized electromagnetic design reduces losses, while its precise speed control capability allows for energy savings in variable-load applications. Unlike older DC motor designs, the Z4 series requires minimal maintenance, with long service intervals for brushes and bearings, further lowering total cost of ownership. This combination of performance, reliability, and efficiency makes it a cost-effective solution for industrial operations worldwide.

In conclusion, the SIMO Z4 series DC motors are a testament to SIMO's decades of expertise in motor manufacturing. With their robust construction, precise control, and proven reliability, they are the ideal choice for industrial applications requiring high performance and long service life. Backed by Xi'an SIMO's comprehensive support and global service network, the Z4 series delivers consistent, trouble-free operation, making it a trusted partner for industrial drive systems across metallurgy, mining, chemical processing, and heavy machinery sectors.

Main Technical Parameters

Production Details

Frame

• Compact and robust iron casting frame

• Universal IEC  installation dimensions available

• Customizable outlook and dimensions

---

Armature

• 99.9% pure copper bar for armature to ensure the output power and efficiency

• Excellent insulation system with 5 more processing flows

• All the copper bars are fitted in by handwork to ensure all slots are full and avoid any possible flaw.

---

Winding

• All windings are made of pure copper to assure induction efficiency

---

Testing

• All motors must pass the piece testing before painting and packaging

• Type tests will be regularly performed for each series, more often for new developed series and variants.

---

Package and delivery

• All motors will be packaged well before delivery

• Plastic cover inside, vacuum tin foil outer and then solid wood box

---

 

Applications

Cement

Oil gas

Steel

Sugar

CHOOSE SIMO, CHOOSE QUALITY!

Hot Tags: Z4-250-41 90kw 440V Direct Current DC Motor, China, suppliers, manufacturers, factory, customized , quotation, low price, in stock, made in China