ZDL4-180-21 7.5 Kw DC Motor 1500rpm

Xi’an Simo Motor Co., Ltd. is one of the leading manufacturers and suppliers of ZDL4-180-21 7.5 Kw DC Motor 1500rpm in China. With abundant experience, we are committed to providing high quality customized products with competitive price. We warmly welcome you to buy bulk premium products made in China here and get quotation from our factory.

Brief Introduction

The 7.5 kw dc motor from Xi'an SIMO Motor Co., Ltd. is a proven industrial workhorse designed for applications that demand precise speed control, strong starting torque, and dependable continuous operation. Built on the widely recognized Z4 series platform (frame size 180-21), this machine embodies decades of Chinese DC motor manufacturing expertise, combining a rugged cast-iron construction with modern insulation technology. Whether it drives machine tools, rolling lines, or hoisting equipment, this 7.5 kW direct current motor delivers stable, repeatable performance shift after shift.

At the heart of this 7.5 kw dc motor is a carefully balanced electrical design. The motor is rated at 7.5 kW output power with a 125 V armature voltage and 73 A armature current, rotating at a nominal speed of 1500 r/min under continuous duty cycle S1. The shunt (separately excited) field configuration allows smooth and wide-range speed regulation, making the motor especially suitable for processes where speed must be held constant under fluctuating loads-or adjusted precisely to match production requirements. Field current is rated at just 1.25 A, keeping excitation losses low and control simple.

Thermal and environmental protection are engineered in from the start. The motor carries an IP44 enclosure rating, protecting internal components from dust and splashing water in typical industrial environments. Cooling follows the IC411 scheme, a fully enclosed self-cooled design that requires no external air ducts or auxiliary fans, simplifying installation. The insulation system is Class F (thermal class 155), providing a generous thermal margin that extends winding life and improves tolerance to overload and harsh ambient temperatures. Weighing 330 kg, the frame-mounted structure is rigid, vibration-resistant, and designed for long-term mechanical reliability. Both bearings (6312-7KZ/C3 on the drive end and 6212-7KZ/C3 on the non-drive end) are sealed, pre-lubricated units chosen for quiet running and extended maintenance intervals.

Every motor in this series is manufactured in accordance with the GB/T 755 rotating machine standard and carries CE certification, ensuring conformity with both national and international requirements for safety and performance. The commutator and brush gear are precision-machined to minimize sparking and wear, while the laminated armature core reduces iron losses and improves overall efficiency. Each unit undergoes comprehensive factory testing-including insulation resistance, dielectric strength, and no-load/performance verification-before shipment, and every motor is delivered with a unique serial number and QR code for full traceability of materials, test data, and production records.

This motor is ideally suited for steel and metallurgical equipment, machine tools, plastic extruders, paper machinery, cranes and winches, mining conveyors, and test benches-anywhere a DC drive's naturally excellent torque-speed characteristics remain the preferred solution. Compared with AC alternatives, a DC motor of this class offers inherently simple speed control with a straightforward armature voltage adjustment, high starting torque at low speeds, and linear, predictable behavior that is easy to integrate with both legacy and modern SCR/DC drive systems.

In summary, the SIMO(Type Z4-180-21) stands out as a robust, standards-compliant, and field-proven solution for industrial DC drive needs. Backed by Xi'an SIMO Motor Co., Ltd.-a major Chinese motor manufacturer with a nationwide service network and export experience across global markets-it offers buyers an attractive combination of dependable performance, competitive pricing, and readily available spare parts. For customers seeking a compact, efficient, and durable 7.5 kw dc motor for continuous industrial service, this model represents a safe and economical choice, and our engineering team welcomes your inquiries for customization options, matching DC power supplies, and complete drive-package solutions.

Main Technical Parameters

Production Details

Frame

• Compact and robust iron casting frame

• Universal IEC  installation dimensions available

• Customizable outlook and dimensions

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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.

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Winding

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

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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.

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Package and delivery

• All motors will be packaged well before delivery

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

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Applications

Cement

Oil gas

Steel

Sugar

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