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## **KYOWA Manufacturing Co., Ltd. – Company & Product Overview**
**KYOWA Manufacturing Co., Ltd.**, established on September 1, 1955, is headquartered in Midori‑ku, Nagoya, Aichi Prefecture, Japan. The company specializes in the precision machining of components, predominantly for automotive transmissions and office automation equipment. Its offerings include motor rollers, motor pulleys, free rollers, pulse rollers, gears, and shafts.
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### **Company Profile**
* **Name:** KYOWA Manufacturing Co., Ltd.
* **Founded:** September 1, 1955
* **Capitalization:** ¥30 million
* **Employees:** Approximately 90
* **Business Scope:** Design, development, production, and sale of automotive and office automation components
* **Main Products:** High‑precision shafts, gears, motor rollers, and pulleys for automotive and industrial use
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### **Product Portfolio**
KYOWA Manufacturing operates two core divisions:
#### **1. Industrial Machinery Division**
Focused on motorized and passive roller components for conveyor systems:
* **PULSEROLLER®** – High-speed DC pulse rollers with precision brushless motors and reinforced gears, designed for high-speed logistics and intelligent conveying systems.
* **AC MOTOR ROLLER** – AC-driven rollers featuring impedance protection and robust gear assemblies, optimized for consistent conveyor power.
* **FREE ROLLER** – Non-driven rollers built with high-durability bearings for smooth, low-resistance rotation.
* **AC MOTOR PULLEY** – Pulley units for belt conveyors, engineered for increased motor output and compact reliability.
* **PDU90 Unit** – A right-angle divert unit driven by pulse roller, ideal for tight layout configurations.
* **PSU30 Unit** – Swing-type high-speed sorter optimized for narrow transfer zones and lightweight sorting.
* **PPU30/45 Unit** – Lift-type diverter unit operating without pneumatics; compact and energy-efficient.
#### **2. General Machinery Division**
Producing cold‑forged and precision-machined shafts, gears, and spline components for automotive, agricultural machinery, motorcycles, and industrial equipment:
* Cold‑forged gears and spline shafts
* Helical gear sets
* Internal and external spline processing
* Multi-stage gear assemblies
* Tapered, chamfered, OD/ID ground components
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### **Product Series & Model Highlights**
#### **Industrial Machinery Units**
* **PULSEROLLER® Series** – DC brushless motor rollers used in intelligent, high-speed conveyor lines.
* **AC MOTOR ROLLER Series** – Impedance-protected AC motors integrated into durable roller housing.
* **FREE ROLLER Series** – Companion rollers for non-driven positions in conveyor systems.
* **AC MOTOR PULLEY Series** – Durable pulley-driven motor units designed for high-efficiency belt transport.
* **PDU90 Series** – Right-angle push diverter with low-profile structure.
* **PSU30 Series** – Compact swing-type sorter designed for high throughput.
* **PPU30/45 Series** – Lift and diverter units powered by motor rollers with no air supply needed.
#### **Precision Shafts & Gears**
* Cold-forged precision shafts with customized spline patterns
* Spur and helical gear combinations
* Internally broached or ground splines
* Multi-gear assemblies with hardened steel finishes
* Full-profile accuracy suitable for transmission and rotating assemblies
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### **Technical Strengths & Advantages**
1. **Fully Integrated Production**
KYOWA controls all processes in-house, from design and forging to machining, assembly, and final inspection. This vertical integration ensures high-quality and consistent performance across all products.
2. **High Precision Engineering**
Decades of experience in tight-tolerance machining has allowed KYOWA to produce transmission components meeting or exceeding OEM specifications.
3. **Industrial Versatility**
KYOWA’s products are deployed in:
* Conveyor and logistics automation
* Automotive transmissions and differentials
* Printing and office machinery
* Construction and agricultural equipment
4. **Quality Management**
The company is ISO 9002 (since 1998) and ISO 14001 (since 2000) certified, reflecting its dedication to quality assurance and environmental sustainability.
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### **Product Summary Table**
| Division | Product Series | Function / Use |
| -------------------- | ----------------- | ----------------------------------------------- |
| Industrial Machinery | PULSEROLLER® | DC pulse roller for intelligent conveyors |
| | AC MOTOR ROLLER | Durable AC motorized conveyor rollers |
| | FREE ROLLER | Passive rollers for unpowered conveyor sections |
| | AC MOTOR PULLEY | Pulley-type motorized conveyor unit |
| | PDU90 | Right-angle divert module |
| | PSU30 | Swing-type sorter for single-lane sortation |
| | PPU30/45 | Lift-type diverter with motor roller drive |
| General Machinery | Precision Shafts | Transmission shafts, internal/external splines |
| | Cold-Forged Gears | Spur, helical, multi-stage gear sets |
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### **Conclusion**
KYOWA Manufacturing Co., Ltd. is a precision manufacturer with over six decades of experience in engineering components for motion control, power transmission, and material handling. Its advanced roller units—including the PULSEROLLER®, AC MOTOR ROLLER, and specialty diverters—enable high-efficiency automation in logistics and industrial systems. In parallel, KYOWA’s forged and machined components meet the stringent standards of automotive and machinery manufacturers worldwide.
With a full in-house production system, ISO-certified quality, and constant investment in high-speed and intelligent material movement solutions, KYOWA remains a trusted partner for companies needing precision rollers, transmission components, and custom-engineered automation solutions.