The "Test 20" standard (M16x2) has become the backbone of modern hydraulic diagnostics. As industries shift toward Industry 4.0 and predictive maintenance, the demand for high-precision Test 20 fittings has skyrocketed. These components are no longer just simple connection points; they are the gateways for critical system data, enabling engineers to monitor pressure, vent air, and take fluid samples without shutting down entire production lines.
Globally, the hydraulic equipment market is projected to reach billions, driven by infrastructure growth in Southeast Asia and the modernization of manufacturing in North America and Europe. In this ecosystem, China Wholesale Test 20 Fitting Manufacturers play a pivotal role by providing high-quality, ISO-standardized components that meet the rigorous safety demands of heavy machinery, wind energy, and aerospace sectors.
Standard Pressure Capacity
Leak-Free Reliability
Global Compatibility
IKIN is our registered trademark, and TM Hydraulic is the operating company. We specialize exclusively in manufacturing hydraulic test points & hoses — nothing else. With ISO and SGS certifications, a 5,000㎡ production facility, and new workshops under development, we ensure reliable quality and professional standards.
Our products feature cone-seal, zero-leakage designs, 100% inspection, and a 3-year quality warranty. Based in China, we offer a full range of models and have become a trusted supplier to major brands such as SANY, XCMG, Parker, Hawe, GE, Rexroth, Caterpillar and so on. Contact us to quote — we’re ready.
The industry is moving towards Zinc-Nickel coatings that offer over 720 hours of salt spray resistance, ensuring longevity in maritime and offshore applications.
Smart Test 20 fittings are now being integrated with Bluetooth and IoT sensors for real-time wireless pressure monitoring in remote locations.
Leak-free technology is not just about efficiency; it's about preventing hydraulic fluid contamination of the environment, a key metric for ESG-conscious companies.
As a leading Test 20 fitting factory in China, TM Hydraulic is at the forefront of these trends. We invest heavily in R&D to ensure our fittings can withstand extreme temperatures (-40°C to +120°C) and provide the seamless connectivity required for high-frequency pulse environments found in modern excavators and plastic injection molding machines.
Founded as the exclusive distributor of Germany’s Beta brand in China.
Began developing proprietary hydraulic test fittings for the wind power industry.
Established manufacturing facility in Changzhou City. Mass production officially began.
Awarded "High-Tech Enterprise" and "Gazelle Enterprise" of Jiangsu Province.
Global partners include SANY, XCMG, CRRC, Parker, and Caterpillar.
International procurement teams today prioritize supply chain resilience and technical compatibility. Whether you are a distributor in Europe or an OEM in South America, sourcing from a reliable Test 20 fitting manufacturer ensures that your systems remain operational with minimal downtime.
Test 20 fittings are installed on main pumps and valves of excavators and cranes (like SANY and Zoomlion) to allow field technicians to check system health instantly.
In the nacelles of wind turbines, space is limited. Our compact test points allow for safe pressure measurement in high-vibration environments.
Stainless steel Test 20 fittings are essential for hydraulic steering and winch systems on ships, where salt corrosion is a constant threat.
Modern tractors use complex hydraulics for precision farming. Our fittings provide easy access for maintenance without fluid loss.
TM Hydraulic have steadily expanded into international markets, supplying hydraulic test points & hoses to Europe, North America, and Southeast Asia.
Certified to ISO standards for consistent quality and global trade compliance.
Our patented cone-seal design ensures leak-free performance even under high-pressure pulses.
Every single product is fully pressure tested before delivery. We do not compromise on safety.
Over 10 years of focus. We are recognized as "High-Tech" and "Gazelle" enterprise in Jiangsu.
Partnered with world-class brands: Parker, Caterpillar, SANY, and Rexroth.
Free custom logo support to help build your brand. Tailored hydraulic solutions available.
Choosing a Chinese Test 20 fitting factory like TM Hydraulic offers more than just competitive pricing. Our location in Changzhou—a hub for high-end manufacturing—gives us access to a world-class supply chain and elite engineering talent. This allows us to maintain a 5,000㎡ production facility that utilizes automated CNC machining for unmatched precision.
Furthermore, our "Specialized, Refined, Special Enterprises" certification proves our commitment to niche expertise. Unlike general hydraulic retailers, we eat, sleep, and breathe test points. This specialization results in faster lead times, deeper technical support, and the ability to customize designs—such as ORFS, JIC, or DKO connections—to fit your specific regional market needs.