About
our company
The company was established in August 2004, originally under the name Hangzhou Zhenshi Mold Technology Development Co., Ltd. It was subsequently renamed Hangzhou Purun Technology Co., Ltd. to meet operational needs, and specializes in the manufacturing of motor coils as well as the design and manufacture of coil molds.
The company specializes in the manufacture of motor coils and the design and fabrication of associated tooling. Its capabilities include designing molds for stator bars up to 150 MW/10.5 kV and manufacturing stator bars up to 75 MW/18 kV. It enjoys a solid reputation in the industry and participates in the manufacture of motor coils for major national projects. Its business operations span conventional commercial products, motor coils for military applications, and the R&D of motor coils for boiler water pumps.
READ THE FULL INTRODUCTION
WHY
CHOOSE US
We commit to a rapid response—within 24 hours—regarding any quality issues reported by customers, promptly analyzing the root cause and providing a resolution plan. We offer long-term spare parts supply to ensure the continued, stable operation of equipment.
View More-
Proven Industry Track RecordEstablished in 2004, serving major national projects with military-grade and boiler pump motor coil R&D.
-
Full-Certified Quality AssuranceCertified under ISO 9001, ISO 14001, and ISO 45001, ensuring quality, environment, and safety compliance.
-
Advanced In-House ManufacturingEquipped with CNC, EDM, robotic taping, hot-pressing, brazing, and annealing machinery for full-process control.
-
End-to-End Customer SupportProvides technical consultation, customized design, 24-hour issue response, and long-term spare parts supply.
PRODUCTSCATEGORIES
The ideal choice for
Manufacturing of motor coils
We provide professional technical consultation and product selection advice based on specific technical requirements for items such as stator coils, magnetic pole coils, stator bars, and coil molds.We offer complimentary preliminary sample evaluation and drawing review services to ensure product designs meet customer expectations.
Our hot sale products
-
![Stator Bar Forming Mold]( "Stator Bar Forming Mold")
Stator Bar Forming MoldThe stator bar forming mold presses wrapped soft bars into predetermined shapes. Cavity precision and surface finish are critical. These directly affect the...
-
![Coil Forming Mold]( "Coil Forming Mold")
Coil Forming MoldThe coil forming mold corrects coil shapes after winding. It ensures coil dimensions match design drawings. We use high-quality mold steel for our tooling.
-
![Generator Stator Bar]( "Generator Stator Bar")
Generator Stator BarThe generator stator bar is the heart of large generators. Manufacturing is highly complex. We have a full production line. Equipment includes...
-
![Salient Pole Coil]( "Salient Pole Coil")
Salient Pole CoilThe salient pole coil is the core component for salient-pole synchronous machines. These are mainly hydro generators.
-
![Coil Hydraulic Press]( "Coil Hydraulic Press")
Coil Hydraulic PressThe coil hydraulic press is specialized equipment for hot-press curing of coil insulation. Our hydraulic press uses hydraulic pressure control. It includes...
-
![Water Cooled Stator Bar]( "Water Cooled Stator Bar")
Water Cooled Stator BarThe water cooled stator bar is a core component for large generators. It uses hollow copper conductors for water cooling. This design removes heat generated...
-
![Coil Press Mold]( "Coil Press Mold")
Coil Press MoldThe coil press mold cures insulation layers under heat and pressure. This tooling must maintain dimensional stability and pressure transfer at high...
-
![Generator Stator Coil]( "Generator Stator Coil")
Generator Stator CoilThis generator stator coil works for hydro generators and turbo generators. It also fits synchronous condensers. Before production, we talk with customers...
Latest news and events
-
![Manufacturing Process Of Coil Tooling Mold]()
Jul 20, 2026Manufacturing Process Of Coil Tooling MoldThe core of the molding coil manufacturing process involves injecting epoxy resin, polyurethane, or other thermosetting plastics into a metal mold containing...view more -
![What Are The Advantages Of Coil Tooling Molds?]()
Jul 19, 2026What Are The Advantages Of Coil Tooling Molds?Due to mold positioning and forming, coil winding, shaping, and pressing processes can be completed quickly. Reduces repetitive manual measurement and adj...view more -
![The Development Trend Of Intelligent Coil Production Equipment]()
Jul 18, 2026The Development Trend Of Intelligent Coil Production EquipmentWith the continuous advancement of digital transformation in the manufacturing industry, coil production equipment is also developing towards automation, int...view more
