ISO 9001 CERTIFIEDEST. 1970

PRECISION FORGEDCONNECTINGROD MANUFACTURER

55+ years of precision engineering excellence. Trusted OEM supplier for SYM, Yamaha, Suzuki, and Kymco. ISO 9001 certified manufacturing from Taiwan.

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Year Established
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OEM Partners
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Application Categories
MotorcyclesMotocrossWatercraftChainsawsATVsSnowmobilesLawnmowersDronesMotorcyclesMotocrossWatercraftChainsawsATVsSnowmobilesLawnmowersDrones
MotorcyclesMotocrossWatercraftChainsawsATVsSnowmobilesLawnmowersDronesMotorcyclesMotocrossWatercraftChainsawsATVsSnowmobilesLawnmowersDrones
About ROCKET

FORGED IN PRECISION,DRIVEN BY PERFORMANCE

Founded in 1970, ROCKET Industry (Tzung Dar Industrial Co., LTD.) has spent over half a century perfecting the art of connecting rod manufacturing. Headquartered in Taichung City, Taiwan, we were the first Taiwanese manufacturer to earn ISO 9001:2000 certification — a milestone that reflects our uncompromising commitment to quality.

With a capital base of NT$80M, we proudly supply connecting rods to some of the most recognized names in the powersports industry, including SYM, Yamaha, Suzuki, and Kymco. From high-performance motorcycles to marine engines and power equipment, our components are engineered to perform where it matters most.

"Precision is our tradition. Every connecting rod we produce carries over 55 years of engineering expertise — built to endure, designed to perform."
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Motorcycles

High-performance rods for street and racing bikes

🚤

Watercraft & ATV

Marine and all-terrain vehicle applications

🏁

Motocross

Competition-grade components for extreme performance

⚙️

Power Equipment

Chainsaws, lawnmowers, and industrial tools

SYM
Major OEM Partner
Yamaha
OEM Supplier
Suzuki
OEM Supplier
Kymco
OEM Supplier
Est. 1970
55+ Years Excellence
Our Products

PRECISION CONNECTING RODS

Motorcycle Connecting Rod Assembly

Motorcycle Connecting Rod Assembly

Complete assembly with bearing and pin

Forged Steel Connecting Rod

Forged Steel Connecting Rod

High-tensile forged steel construction

Racing Connecting Rod

Racing Connecting Rod

Lightweight high-performance design

Power Equipment Rod Assembly

Power Equipment Rod Assembly

Durable construction for industrial use

Marine Engine Connecting Rod

Marine Engine Connecting Rod

Corrosion-resistant marine grade

ATV Connecting Rod

ATV Connecting Rod

Heavy-duty all-terrain application

Explore Our Applications
Our Services

COMPREHENSIVE SOLUTIONS

From design to delivery, we provide complete manufacturing solutions backed by decades of expertise.

OEM Manufacturing

Full-scale OEM production for global motorcycle and power equipment manufacturers.

  • →Exclusive SYM partnership
  • →Volume production capacity
  • →Strict quality protocols

ODM Development

Custom engineering and design services tailored to your specific requirements.

  • →In-house R&D team
  • →Prototype development
  • →Design optimization

Aftermarket & Multi-Industry

Versatile solutions spanning motorcycles, watercraft, ATVs, and power equipment.

  • →8+ application categories
  • →Cross-industry expertise
  • →Global distribution

Quality & Testing

ISO 9001 certified processes ensuring every component meets rigorous standards.

  • →100% inspection
  • →Material testing
  • →Performance validation

CNC Machining

Advanced precision machining capabilities for complex geometries and tight tolerances.

  • →Multi-axis CNC centers
  • →Micron-level precision
  • →Surface finishing

Supply Chain & Logistics

Reliable delivery and inventory management for seamless integration with your operations.

  • →Just-in-time delivery
  • →Global shipping
  • →Inventory management
Our Process

FROM RAW STEEL TO FINISHED PRODUCT

1
Design
CAD modeling & engineering
2
Forging
High-strength steel forging
3
Machining
Precision CNC operations
4
Treatment
Heat & surface treatment
5
Inspection
100% quality verification
1970
Year Established
NT$80M
Capital
8+
Application Categories
ISO 9001
First in Taiwan
Why ROCKET

WHY CHOOSE US

Decades of proven expertise, world-class certifications, and partnerships with the biggest names in powersports — here's what sets us apart.

55+ Years of Expertise

Founded in 1970, we bring over half a century of specialized connecting rod manufacturing experience to every project.

First ISO 9001 in Taiwan

We were the first Taiwanese manufacturer to earn ISO 9001:2000 certification, setting the benchmark for quality in our industry.

Complete In-House Production

From forging and CNC machining to heat treatment and final inspection — everything under one roof for maximum quality control.

Trusted by Major Brands

SYM, Yamaha, Suzuki, and Kymco rely on our precision-engineered connecting rods for their most demanding applications.

Rapid Prototyping & Delivery

Our integrated OEM/ODM workflow means faster turnaround from concept to mass production without compromising precision.

Global Reach

From Taiwan to the world — we export connecting rods to manufacturers across Asia, Europe, and the Americas.

50+
Years in Business
5+
Major OEM Partners
8+
Industry Sectors
100%
Inspection Rate
Get In Touch

LET'S BUILDSOMETHING POWERFUL

Whether you're looking for OEM partnership, custom ODM solutions, or aftermarket components, our team is ready to discuss your project. With 55+ years of experience, we deliver precision and reliability every time.

Location
Taichung City, Taiwan
Phone
+886-4-2491-6399
Contact Person
Mr. Wang
Our Location

VISIT OUR FACTORY

251 Renhua Road, Dali District
Taichung City, Taiwan 412
ROCKET Industry — Tzung Dar Industrial Co., LTD.
No. 251, Renhua Rd, Dali District, Taichung City 412, Taiwan
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