$KSTK\'s Units Global Presence map$

Global Presence

Our units are installed all over the world, from tropical coastlines to subarctic highlands, from bustling metropolises to rural industrial zones.
At KSTK, we don’t just deliver machines — we deliver trust, commitment, and long-term value. We deeply value every customer relationship, no matter where you are in the world. Our international service team ensures responsive and reliable after-sales support, while our experienced technical experts work closely with you to design the most suitable, economical, and efficient gas solutions tailored to your unique needs.

Your success is our mission — and we’re with you, every step of the way.

Countries Installed

Units Delivered

Million Nm³

Annual Gas Produced

Certifications

Hot Product

Modular Oxygen Generator

Unlike traditional multi-tower oxygen generators, our new modular oxygen generator features high-quality aluminum extrusion profile components, offering a more compact design and superior performance. Its innovative system architecture significantly simplifies the equipment structure, reducing both footprint and installation costs. The flexible design allows the unit to be easily placed anywhere in the production facility, providing you with an efficient and hassle-free oxygen generation experience.

Plug & play design

24/7 fully automated operation

Optimized structure, reduced footprint

Unmanned operation, remote monitoring

Quality guaranteed with branded components

Safety guaranteed with intelligent alarm system

Energy-saving design, reduced operational costs

Food-grade piping, corrosion and pressure resistant

Meet Our Solutions

Our gas solutions encompass oxygen, nitrogen, and compressed air systems, featuring PSA & VPSA gas generators, gas purifiers, air dryers, filters, and more.

All designed for efficiency, reliability, and cost-effectiveness.

What Can We Provide

Quick ROI

Our efficient and high-performance solutions help you achieve a faster return on investment, optimizing cost-effectiveness without compromising quality.

Quality Assurance

We prioritize excellence with strict quality control, premium materials, and rigorous testing to ensure long-lasting performance and reliability.

Customize Solution

Tailor-made solutions designed to meet your unique needs, providing flexibility and efficiency for various industries and applications.

Professional R&D

Backed by a highly skilled research and development team, we continuously innovate to deliver cutting-edge technology and superior products.

Exceptional Service

From consultation to after-sales support, our dedicated team ensures a seamless experience with expert guidance and responsive assistance.

Best Price Guarantee

With our fully integrated supply chain and complete product categories, we offer the most competitive prices without compromising on quality or performance.

Industry Coverage

As a leading global gas solutions provider, KSTK serves a wide range of industries with extensive expertise. Our professionals are committed to delivering the right equipment for your gas applications. No matter your industry, you can rely on us for tailored solutions that meet your specific needs.

Oil & Gas

Designed for both onshore and offshore operations, our nitrogen systems serve critical roles in nitrogen blanketing...
Chemical

In the chemical industry, our nitrogen generators are applied for inerting, purging, pressurizing, cleaning, pneumatic conveying...
Coal Mining

Developed specifically for underground coal mining environments, our nitrogen generators help mitigate the risk of gas and coal dust explosions...
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Our product are widely used in industries such as healthcare, chemicals, electronics, food preservation, and more.

Client Testimonials

The design of their units is outstanding, with a neat, compact, and clean appearance. Every detail is beautifully crafted, and you won’t find a single loose wire—everything is built with quality and precision.

Henrik. N (Denmark)

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I love their use of color and cabinet design. The vibrant green paired with beige truly makes their products stand out in the market.

Khalid. Z (Congo)

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We've been proud business partners with KSTK (formerly Yuanda) for over a decade. They have consistently provided top-notch, highly efficient customer service. Even during COVID, when demand was extremely high, they ensured we received the same timely, detailed support and service as always.

Krishiv. P (India)

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Latest Information

KSTK Manufacturing Officially Joins Hanmeida Group as Part of Its Air Separation Equipment Division

Zhejiang KSTK Manufacturing Technology Co., Ltd., a leading manufacturer specializing in PSA nitrogen and oxygen generators and integrated gas systems, officially joined Hanmeida Group on September 21, 2022, as part of the group’s Air Separation Equipment Division.Hanmeida Group is a diversified int

10 March 2025

Nitrogen Generator Used In Oil & Gas And Petrochemical Industries

Discover how onsite nitrogen generators eliminate supply bottlenecks, cut costs, and boost safety in demanding oil and gas environments.

09 June 2026

High-Purity Nitrogen Generators – Why Purity Matters For Critical Applications

Guide to on-site nitrogen generation: Learn how to select (PSA vs. Membrane), size, and maintain systems for optimal purity and ROI.

06 June 2026

Our expert team is dedicated to providing the highest quality products and exceptional service to clients worldwide. Choose KSTK, partner with us, and let's build a successful future together！