Engineered for maximum reliability and structural integrity in critical industrial fluid networks. Explore our core range below.
As structural demands on modern heavy equipment increase, the performance of diagnostic components becomes paramount. At TM Hydraulic (operating under our globally registered trademark IKIN), we take a highly specialized approach to engineering. We manufacture hydraulic test points, test couplings, and micro-bore high-pressure hoses, focusing exclusively on diagnostic interfaces to ensure absolute manufacturing excellence.
Operating a state-of-the-art 5,000㎡ manufacturing facility in Changzhou City, Jiangsu Province, we implement automated CNC technologies, material spectroscopy, and extreme pressure simulation testing. Backed by rigorous ISO 9001 and SGS certifications, we offer standard-setting cone-seal, zero-leakage configurations. We guarantee our build quality with a comprehensive 3-year warranty, providing OEM parts to market-defining brands such as SANY, XCMG, Parker, Hawe, GE, Rexroth, and Caterpillar.
By integrating dual metal-to-elastomer sealing dynamics, our couplings maintain structural integrity even under extreme vibration and pressure impulses up to 630 Bar.
A breakdown of the specific quality control pipelines and raw material configurations that set our factory apart.
Certified under strict ISO Quality Management systems. Our diagnostic equipment and test connections conform completely to the ISO 15171-2 standard, ensuring international compatibility.
Equipped with a patented cone-seal interface design. Primary metal-to-metal seating backed by an elastomeric ring prevents fluid loss during dynamic pressure cycling.
Every single test point is pressure tested in our facility before shipping. Our multi-stage inspection checks tolerances, thread accuracy, and seal placement to eliminate field failures.
We do not dilute our expertise. For over a decade, we have focused exclusively on pressure testing fittings, couplings, and related accessories to build deep domain expertise.
Trusted by global OEMs like Parker and SANY. We serve as a direct factory supplier, ensuring reliable, long-term part supply and consistent quality.
We provide full white-label and custom laser engraving services for diagnostic fittings. Build brand authority with custom logos at no additional cost.
Enterprise capacity, manufacturing precision, and field performance metrics.
In high-pressure hydraulic circuits, diagnostic points serve as the vital window for sensor communication and field testing. The integration of TM Hydraulic (IKIN) diagnostic test couplings protects system components, isolates test gauges, and enables safe line access under full operating pressure. We examine the design principles, material selections, and localization challenges that define modern high-pressure diagnostics below.
Traditional diagnostic points rely on single metal ball-seat interfaces. However, high-vibration environments, such as wind power generation and heavy excavating, can cause micro-displacement of the ball, leading to gradual fluid bypass. Our test points feature a conical seal with an elastomeric O-ring backup. When a diagnostic hose or gauge adapter is threaded onto the test point, the internal valve opens. When disconnected, the spring-actuated cone seal seats against both the metal shoulder and the primary O-ring, ensuring leak-free performance under pressure spikes up to 630 Bar.
Operating in aggressive offshore marine, wind power, and mining environments requires premium metallurgy. We manufacture diagnostic components from high-strength carbon steel (typically C10C or 11SMnPb30) or marine-grade 316 Stainless Steel. Our standard carbon steel components undergo an advanced Zinc-Nickel (Zn-Ni) electroplating process. This surface treatment provides superior rust protection, exceeding 400 hours of salt spray exposure before red rust formation (per ISO 9227 standards), outperforming traditional zinc plating.
To transmit pressure signals without introducing volumetric expansion errors, diagnostic systems require micro-bore capillary hoses. IKIN high-pressure hoses feature a multi-layer design:
Tracing our evolution from a regional distributor to an independent manufacturer of high-pressure diagnostic products.
Founded as the exclusive distributor of Germany's Beta brand in China. Developed a deep understanding of European quality standards and market requirements.
Terminated partnership with Beta to pursue independent development of localized high-precision diagnostic parts.
Began R&D on proprietary hydraulic test fittings. Tested prototype designs in high-vibration wind power systems to establish reliable performance baselines.
Established a production facility in Changzhou City, Jiangsu Province, scaling operations and introducing automated mass-production processes.
Recognized as a "High-Tech Enterprise of Jiangsu Province," reflecting our ongoing investment in manufacturing and engineering innovation.
Renewed High-Tech Enterprise status and certified as a "Municipal Engineering Technology Research Center," allowing us to expand our analytical labs.
Honored as a "Gazelle Enterprise of Jiangsu Province" and received "Municipal Specialized, Refined, Special Enterprises Certification," highlighting our role in the high-pressure diagnostic supply chain.
In modern industrial manufacturing, supply chain stability is critical. TM Hydraulic has built a resilient export infrastructure, supplying diagnostic test points and high-pressure hoses to Europe, North America, and Southeast Asia. Located in Changzhou, near major shipping ports in Shanghai and Ningbo, our facility ensures rapid fulfillment times for international distributors and OEMs.
By sourcing raw materials from certified steel mills and maintaining buffer stocks of finished standard M16x2 and DKO configurations, we protect our clients from supply disruptions. This reliable supply chain has allowed us to build long-term partnerships with major manufacturers like SANY, XCMG, CRRC, Hengli, Bucher, Argo-Hytos, Caterpillar, Parker, and Hawe.
From offshore wind projects to mobile earthmoving equipment, IKIN couplings are designed to perform in challenging environments.
Wind turbines require precise hydraulic adjustments to control blade pitch. Operating high above the ground, these systems demand zero-leakage diagnostic ports. IKIN's cone-seal couplings resist vibration, allowing technicians to check system pressures and bleed air safely without fluid loss.
Heavy machinery like excavators and mobile cranes operate under constant pressure shocks, dust, and temperature shifts. Our M16x2 test points allow field engineers to connect digital pressure gauges under full system pressure, simplifying troubleshooting without shut-downs.
Industrial hydraulic power packs operate under high pressures and duty cycles. Our micro-bore test hoses and gauge connectors allow for continuous pressure monitoring, preventing downtime in production-critical environments.
Detailed engineering answers for system designers and procurement specialists.
Complete your diagnostic setup with our premium micro-bore hoses and system-wide adaptors.