Introduction
DC motors (direct current motors) are electric motors that convert direct current (DC) electrical energy into mechanical energy. They are commonly used in industrial equipment requiring controlled speed, torque and reliable operation.
PUTAI manufactures industrial DC motors for rolling mill auxiliaries, oilfield drilling equipment, oil pump systems, locomotive auxiliaries and other industrial drives. The product range includes Z2, Z4, Z, ZD, ZKSL, ZDB, ZDT, ZTP, ZFQZ and ZZJ series motors.
PUTAI supplies DC motors for equipment OEMs, distributors and industrial maintenance teams. For new equipment projects and replacement requirements, motor compatibility is assessed based on electrical ratings, mechanical interfaces and operating conditions.
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![ZZJ‑802A 3.75kW Rolling Mill DC Motor]()
ZZJ‑802A 3.75kW Rolling Mill DC MotorThe PUTAI ZZJ-802A is a 3.75 kW DC motor for auxiliary steel rolling-line equipment. It serves rolling mill OEMs, equipment integrators, motor distributors and maintenance teams. -
![ZZJ‑800 Dc Motor]()
ZZJ‑800 Dc MotorPUTAI ZZJ-800 DC motors cover 3.75–186 kW for steel rolling mill auxiliary drives and metallurgical equipment. They serve equipment OEMs, industrial motor distributors and maintenance teams... -
![ZKSL High Voltage Dc Motor]()
ZKSL High Voltage Dc MotorPUTAI ZKSL High Voltage DC Motors are water-cooled, separately excited DC motors rated 40–1000 kW, with frame sizes H355–H630. They serve equipment OEMs, motor distributors and replacement buyers... -
![Z Series High Volt Dc Motor]()
Z Series High Volt Dc MotorPUTAI Z Series High Voltage DC Motors cover 40–3,000 kW for industrial equipment OEMs, project contractors, distributors, and maintenance teams. Typical applications include rolling mills and... -
![Z2 Small Brushed Motor]()
Z2 Small Brushed MotorPUTAI Z2 Small Brushed DC Motors comply with JB/T 1104-68 and cover 11 frame numbers, with two core lengths per frame. The series serves equipment OEMs, industrial motor distributors and... -
![ZTP Locomotive Dc Motor]()
ZTP Locomotive Dc MotorPUTAI ZTP Locomotive DC Motors cover 0.4–30 kW and serve locomotive equipment OEMs, motor distributors and replacement buyers. Typical applications include hydraulic pumps, blowers, air... -
![ZDT 220V DC Oil Pump Motor]()
ZDT 220V DC Oil Pump MotorPUTAI ZDT series brushed DC motors cover 85–180 kW for industrial oil-pump applications. They serve equipment OEMs, motor distributors, system integrators and maintenance teams sourcing motors for... -
![ZDB Oilfield Motors]()
ZDB Oilfield MotorsPUTAI ZDB Oilfield Motors are shunt-excited, brushed DC motors for oilfield pumps and industrial machinery. The range serves equipment OEMs, motor distributors, and maintenance teams sourcing... -
![ZFQZ High Efficiency Dc Motor]()
ZFQZ High Efficiency Dc MotorPUTAI ZFQZ High Efficiency DC Motors cover 37–600 kW and H250–H450 frames. Designed for frequent starting, braking and reversing, they serve equipment OEMs, motor distributors and replacement... -
![ZD DC Motor]()
ZD DC MotorPUTAI ZD DC Motors cover 40–1,500 kW and serve drilling equipment OEMs, industrial motor distributors and replacement buyers. Typical applications include drawworks, drilling mud pumps, rotary... -
![Z4 Dc Universal Motor]()
Z4 Dc Universal MotorPUTAI Z4 Series Brushed DC Motors cover 1.5–840 kW for industrial equipment OEMs, motor distributors, and maintenance teams. Typical applications include rolling mill auxiliaries, plastic...
Find a DC Motor by Application
Identify a suitable DC motor category based on the driven equipment and operating requirements.
Rolling Mill Auxiliaries
Roller tables, shears and other rolling mill auxiliary drives.
Drilling Rig Equipment
Drawworks, mud pumps, rotary tables and top-drive systems.
Water-Cooled Installations
Applications requiring a water-cooled DC motor configuration.
Oilfield and Emergency Pumps
Oil pump systems and emergency pump equipment.
Locomotive Auxiliary Equipment
Hydraulic pumps, blowers and compressors.
Other Industrial Applications
Compare the required power, voltage, speed and excitation configuration with the specifications of each motor series.
Application categories provide an initial reference. Final motor matching requires checking the relevant electrical ratings, cooling arrangement and installation dimensions.
DC Motor Product Range
PUTAI offers several DC motor series for different power ranges, voltage configurations and industrial operating conditions.
|
DC Motor Series |
Product Type / Main Application |
Main Specifications |
|
Z2 |
Small brushed DC motors for industrial machinery |
0.4–200 kW; 110/220 V |
|
Z4 |
Industrial DC motors for compatible DC drive configurations |
Refer to individual model specifications |
|
Z |
High-power DC motors |
40–3,000 kW |
|
ZD |
DC motors for drilling rig equipment |
40–1,500 kW; 400–750 V DC |
|
ZKSL |
Water-cooled high-power DC motors |
40–1,000 kW; 400–750 V |
|
ZDB |
DC motors for oilfield oil pumps and emergency pumps |
Refer to individual model specifications |
|
ZDT |
DC motors for oil pump applications |
Refer to individual model specifications |
|
ZTP |
DC motors for locomotive auxiliary equipment |
Refer to individual model specifications |
|
ZFQZ |
DC motors for frequent starting, braking and reversing |
37–600 kW; 160–750 V |
|
ZZJ-800 |
DC motors for rolling mill auxiliary drives |
Refer to individual model specifications |
|
ZZJ-802A |
DC motor for rolling mill auxiliary applications |
3.75 kW |
DC Motor Design and Technical Matching
Selecting a DC motor requires more than comparing rated power. Electrical compatibility, cooling requirements and operating duty all affect whether a motor can work with the existing drive system and driven equipment.
Electrical Ratings and Drive Compatibility
Rated power, armature voltage, field voltage, speed and excitation method are key parameters when matching a DC motor with its power supply and control system.
Different series have different electrical configurations. For example, Z2 motors are available in 110 V and 220 V configurations, while ZD motors cover 400–750 V DC. These ratings are specific to their respective product ranges and should not be treated as interchangeable.
Cooling Arrangement
The cooling method affects motor installation and thermal performance. For water-cooled motors, the cooling arrangement and connection requirements must be compatible with the existing system. Installation space and motor dimensions also need to be checked.
Starting, Braking and Reversing Conditions
Industrial drives may operate under frequent starting, braking or reversing conditions. These operating requirements affect motor selection and should be checked against the motor's rated speed, duty and applicable technical specifications.
Featured DC Motor Series: Key Differences
The following comparison highlights four DC motor series used in different industrial applications. It provides an initial reference for product evaluation rather than indicating that the motors are interchangeable.
|
Series |
Main Characteristics |
Key Parameters to Check |
|
Z Series |
High-power DC motor range, covering 40–3,000 kW |
Armature voltage, field voltage, speed, cooling and installation dimensions |
|
ZKSL Series |
Water-cooled DC motors, 40–1,000 kW, 400–750 V |
Cooling connections, rated parameters and installation requirements |
|
ZZJ Series |
DC motors for rolling mill auxiliary drives; ZZJ-802A includes a 3.75 kW model |
Exact model, rated power, duty, starting/braking conditions and mounting dimensions |
|
ZD Series |
DC motors for drilling rig equipment, 40–1,500 kW, 400–750 V DC |
Driven equipment, speed, electrical ratings, cooling and mechanical interfaces |
Industrial Applications
PUTAI DC motors serve industrial equipment where controllable speed, specific torque characteristics or compatibility with existing DC drive systems is required. The following applications highlight the main operating conditions and matching considerations.
Steel Mills
DC motors are used in rolling mill auxiliary equipment, including roller tables and shears. These drives may involve frequent starting, braking and reversing.
Key matching considerations include rated speed, operating duty, braking requirements and mechanical installation dimensions.
Oilfield and Drilling Equipment
Drilling equipment such as drawworks, mud pumps, rotary tables and top-drive systems requires motors matched to the driven load and operating conditions.
Important parameters include rated power, speed, torque requirements, armature and field voltage, cooling arrangement and mechanical interfaces.
Oilfield Pumps and Emergency Pump Systems
Oilfield oil pumps and emergency pump equipment require motors compatible with the pump load and operating duty.
Check rated power, voltage, speed, duty cycle, mounting dimensions and the existing pump connection requirements.
Locomotive Auxiliary Equipment
DC motors are used in locomotive auxiliary systems such as hydraulic pumps, blowers and compressors.
Matching should consider the available supply voltage, rated speed, motor dimensions and the requirements of the driven auxiliary equipment.
Manufacturing Capability and Quality Assurance
PUTAI's motor manufacturing operations cover a 200,000 m² facility, with more than 120 employees, including 18 technical engineers. The company has over 25 years of experience in the motor industry.
Manufacturing Processes
The manufacturing process includes silicon-steel preparation, copper winding, insulation treatment, Vacuum Pressure Impregnation (VPI), drying, motor assembly and dispatch testing.
These processes form part of the production workflow for industrial motor manufacturing. Product-specific construction and process details should be reviewed against the relevant motor series.
Quality Assurance
Motor inspection and testing are important for verifying product performance and supporting equipment integration. Technical datasheets, outline drawings and applicable inspection records can provide procurement teams with information for specification review and project documentation.
Document availability and applicable certification scope should be checked for the specific product and project.
For more information, visit PUTAI Production Process and Company Profile.
Frequently Asked Questions
We are one of the most professional dc motor manufacturers and suppliers in China, also support customized service. With abundant experience, we warmly welcome you to buy advanced dc motor made in China here from our factory. For price consultation, contact us.
