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致力于节能减排技术的研发与应用，现有业务聚焦于造纸行业重要设备的设计、制造、销售以及与节能降耗和环境保护相关的技术服务和工程实施 -
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We specialize in core paper-making equipment such as enclosed hoods, Yankee dryers, dust removal systems, heat recovery systems, plant ventilation systems, and steam condensate water systems.
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Technical solutions, equipment manufacturing, engineering implementation, and operation and maintenance training; full-chain services, deep penetration into the domestic market, and business coverage in multiple overseas countries.
MORE +PRODUCTS
Product
Enclosed hood
Yank gas hood
Dust removal system
Heat recovery system
Paper-stabilizing bellows
Steam Condensate System
Hot air penetration drying
Air steering device
Factory ventilation system
CASE
Case
CASE
Case
ABOUT US
HunanZhengding Environment
Hunan Zhengding Environmental Technology Co., Ltd. (ZDET) was founded in 2009 and is recognized as a National High-Tech Enterprise, a specialized, refined, distinctive, and innovative SME in Hunan Province, and a contract‑honoring, credit‑worthy enterprise in the province. The company is registered in Yuhua District, Changsha City, Hunan Province, with its production base located in the Yuhu High‑Tech Industrial Development Zone of Xiangtan City, and it is a member of the Huashi Group.
Zhengding Environment specializes in the research, development, and application of energy-saving and emission-reduction technologies, with a deep focus on energy efficiency and consumption reduction in the ventilation and drying processes of the paper-making industry. The company offers end-to-end services covering system design, equipment manufacturing, installation and commissioning, as well as import and export trade for both new construction and retrofit projects.
Our core product lineup includes enclosed hood systems, Yankee hood systems, heat recovery systems, dust collection systems, plant ventilation systems, drying cylinders, paper‑stabilizing air boxes, through‑air drying (TAD), steam condensate recovery systems, air diverters, and hot‑air systems—among other essential papermaking equipment.
The company’s products and services now serve dozens of countries and hundreds of paper‑making enterprises worldwide, and it remains steadfast in its commitment to “putting customer satisfaction first,” creating value for clients through high‑quality products and professional services, and supporting the nation’s strategic goals of peaking carbon emissions and achieving carbon neutrality.
Team Experience
Project implementation
ABOUT US
HunanZhengding Environment
Hunan Zhengding Environmental Technology Co., Ltd. (ZDET) was founded in 2009 and is recognized as a National High-Tech Enterprise, a specialized, refined, distinctive, and innovative SME in Hunan Province, and a contract‑honoring, credit‑worthy enterprise in the province. The company is registered in Yuhua District, Changsha City, Hunan Province, with its production base located in the Yuhu High‑Tech Industrial Development Zone of Xiangtan City, and it is a member of the Huashi Group.
Zhengding Environment specializes in the research, development, and application of energy-saving and emission-reduction technologies, with a deep focus on energy efficiency and consumption reduction in the ventilation and drying processes of the paper-making industry. The company offers end-to-end services covering system design, equipment manufacturing, installation and commissioning, as well as import and export trade for both new construction and retrofit projects.
Our core product lineup includes enclosed hood systems, Yankee hood systems, heat recovery systems, dust collection systems, plant ventilation systems, drying cylinders, paper‑stabilizing air boxes, through‑air drying (TAD), steam condensate recovery systems, air diverters, and hot‑air systems—among other essential papermaking equipment.
The company’s products and services now serve dozens of countries and hundreds of paper‑making enterprises worldwide, and it remains steadfast in its commitment to “putting customer satisfaction first,” creating value for clients through high‑quality products and professional services, and supporting the nation’s strategic goals of peaking carbon emissions and achieving carbon neutrality.
Team Experience
Project implementation
manufacture
Manufacturing
Zhengding Environment leverages its expert technical, manufacturing, and engineering teams, coupled with a mature, standardized customization process, to deliver end-to-end intelligent manufacturing—from R&D through delivery—ensuring both product quality and robust custom‑solution capabilities.
PARTNER
Partner
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Continuously provide services to global customers
News Center
Blog
May 11,2026
![[Good News] Jin Cailun Paper’s PM19 machine has successfully entered production! Zhengding Environmental is helping to propel a major leap in production capacity!](https://omo-oss-image.thefastimg.com/portal-saas/pg2025112709174960722/cms/image/639cb925-b5ec-4a9b-b739-e6d9fad9a6af.png "[Good News] Jin Cailun Paper’s PM19 machine has successfully entered production! Zhengding Environmental is helping to propel a major leap in production capacity!")
Dec 14,2025
Sep 30,2025
Contact Information
Mobile: +86 18807310558 / +86 13907318443
Email:postmaster@hnzdep.com
Address: Room 908–909, New World Chuangdi, No. 139, Laodong East Road, Yuhua District, Changsha City, Hunan Province
Xiangtan Branch: Yuhu High-Tech Industrial Development Zone, Xiangtan City, Hunan Province, China
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