stainless steel chains, conveyor chains, spur gears

20 YEARS OF FOREIGN TRADE
EXPERIENCE SINCE 2000

All products meet the industry standards of Europe, America and Japan
Strong sales and technical team to provide customers with professional and efficient services

SPECIALIZATION

SYSTEMATIZATION HIGH END

Chain Drive System Solution Experts Around You

CHAINS

SPROCKETS

CHAIN PERIPHERAL PRODUCTS

GEARS

HANGZHOU PERPETUAL

MACHINERY & EQUIPMENT CO.,LTD,

HANGZHOU PERPETUAL MACHINERY & EQUIPMENT CO.,LTD, is a professional power transmission company: producing mainly chain, sprocket, gear , bearing...

The company was founded in 2000, with the name of PLW an Industrial Corporation, as part of our growth in the market, now we have our registered brand ”PLW “.

We dedicate to the manufacture of standard roller chains, stainless steel chains, high quality agricultural chain, conveyor chains, special chains and sprockets etc. Standard products can do under ANSI , BS, DIN, KANA. We have many professional engineers, and professional drawings provided by SOLIDWORK,AUTOCAD. For further growth, PLW also has a advanced enterprise management system that works with the sole purpose of meeting the needs of our customers to improve our service and product quality, innovating with our service and our quality.

COMPANY PROFILE

HONOR CERTIFICATE

COOPERATIVE PARTNER

HOT PRODUCTS

What We Offer

USE OCCASIONS

Industry Case

STAINLESS STEEL CHAIN

USE OCCASIONS

LEAF CHAIN

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AGRICULTURAL CHAIN

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DIGITAL SHOWROOM

If you want to learn more about our manufacturing capabilities, you can click on the avatar in the scene, or accept my invitation!

WHAT OUR CUSTOMERS ARE SAYING

Accurate product description, meticulous service provided by foreign trade companies, worry free international transactions, strongly recommended

Daniel Gafa

Sammut Agricultural Machinery

Excellent service experience! From the first consultation to the final completion of the transaction, I felt the professionalism and enthusiasm of the team at every stage. The product not only has superior quality, but also fully meets expectations

Eng. Dima Khoury

Head of Procurement Department
TECHNO Group

Through multiple collaborations, the foreign trade company has always been honest and reliable, with reasonable prices and easy cooperation

Ing. Paolo Parisi

R&D Manager
FMP COMPONENTS S.R.L

KEEP IN TOUCH WITH US

Feel free to contact us for frequently asked questions. We will reply as soon as possible after receiving your message

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WHAT HAPPENED TO PLW

NEWS

PLW Has Obtained The ISO 9001 : 2015 Management System Certification.

On 31/07/2025, PLW successfully obtained the ISO 9001 management system certification. This certification indicates that PLW has reached the international advanced level in terms of enterprise and product management, laying a solid foundation for the company's sustainable development.

What Are The Common Faults in Sprocket Transmission And How To Prevent Them?

Sprockets are the backbone of many industrial systems and are applied in various industrial settings, including agriculture, automotive, and conveyor systems. But, like any other mechanical product, they encounter issues. This article will address common faults in sprocket transmissions and provide

How Do I Know My Roller Chain Size?

To determine your roller chain size: 1.Measure the pitch, roller diameter, and inner link width. 2.Cross-reference these measurements with a standard size chart (e.g., ANSI). 3.Check for printed markings on the chain for confirmation.

Daniel Gafa

Eng. Dima Khoury

Ing. Paolo Parisi

PLW Has Obtained The ISO 9001 : 2015 Management System Certification.

What Are The Common Faults in Sprocket Transmission And How To Prevent Them?

How Do I Know My Roller Chain Size?

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