About Qianfeng

Qianfeng provides smart, automated solutions for PP/PE woven bag production. Our main products include woven bag cylinder-free reel-to-reel printing machine and automatic cutting and sewing machine with optional functions such as liner insertion, top hemming, bottom edge sealing, printing, perforation & handle punching, valve bag top folding and more.

With 28 years of industry experience, Qianfeng is a certified national high-tech enterprise holding over 40 patents. Our ISO-certified machines reduce labor, lower costs, improve quality, and maximize efficiency worldwide.

Trusted by 2,000+ clients across Southeast Asia, the Middle East, Central Asia, Russia, and Africa, we continue to lead innovation in woven bag machinery with smart, space-saving designs and reliable performance.

1997

Establishment

20000+ m²

Factory Area

70+

Exporting Countries

ISO

Quality Certification System

Development History

1997

Our founder began independently designing and selling woven bag machinery - the unofficial start of Qianfeng's journey.

2008

Pingyang Qianfeng Machinery Factory was established, formalizing the company’s presence in the woven bag machinery industry.

2011

The company upgraded to Wenzhou Qianfeng Technology Co., Ltd., expanding its production capacity and patent portfolio.

2025

Wenzhou Qianfeng Machinery Co., Ltd. was founded as the company’s international trading arm, focusing on overseas markets and export business.

R&D and Technology

Our R&D team of 12 engineers holds over 40 high-value patents.

In 2024, we gained 7 new patents (3 invention, 4 utility) focused on automation and precision.

Highlights include:

Intelligent top-hemming system

Cold-cutting & folding for valve bags

Secure clamping and dual-cam suction

Integrated feeding and cutting mechanisms

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Certification

In 2024, Qianfeng obtained triple certification for ISO 9001 (Quality Management), ISO 45001 (Occupational Health & Safety), and ISO 14001 (Environmental Management). We have also passed SGS certification, reflecting our commitment to high industry standards.

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At Qianfeng, quality is built into every step

From raw material inspection to final machine testing, we follow strict quality control procedures to ensure stable machine operation and long-term reliability through ISO 9001 certified processes

Machining Process

Key components such as tool holders and main frames undergo high-temperature heat treatment to ensure structural stability.

Critical contact surfaces are precisely finished using CNC grinding machines for superior accuracy and long-term durability.

Scale Production

Cost optimisation through bulk purchasing of high quality raw materials

ISO certification, full-process quality inspection, 100% test run before shipment.

Production Workshop

Each machine is fully tested at full load before shipment and parameters are fine-tuned according to customer needs. Only after passing the performance test will the machine be cleaned, safely packed and boxed for delivery.