Industries-Zhenjiang Orienthold Machinery Co., Ltd.

Steel Metallurgy

In the extreme operating conditions of rolling mill production lines—where equipment is subjected to instantaneous impact loads, must accommodate thermal deformation of rolls, and operates in high-temperature, dusty environments—the reliability of couplings is directly critical to the continuity and efficiency of the entire production line.

Our heavy-duty crowned gear couplings and high-dynamic balanced diaphragm couplings, specifically engineered for the metallurgical industry, deliver exceptional torque carrying capacity, superior displacement compensation performance, and long-term stable operation. They provide robust protection for key equipment including rolling mills, straighteners, and fans, helping customers achieve stable production, high output, and cost reduction with efficiency gains.

Marine

In the turbulent depths of the ocean and harsh marine environments, power transmission systems must withstand the challenges of continuous vibration, shaft misalignment, seawater corrosion, and extreme loads.

We provide a full range of highly reliable, maintenance-free coupling solutions for marine and offshore engineering. From main propulsion systems to auxiliary equipment, our solutions ensure smooth, efficient and quiet power transmission, guarantee absolute navigation safety and long-term operational availability, and meet the stringent certification requirements of major global classification societies.

Petrochemical

In the process industry that pursues safe, stable, long-term, full-load and optimal operation, any unplanned downtime can lead to catastrophic losses and safety hazards.

We deeply understand the stringent requirements of the chemical industry for connecting rotating equipment such as high-speed pumps and compressors: absolute reliability, zero leakage and maintenance-free operation.

Our core products—high-performance diaphragm couplings and special elastic couplings—feature an all-metal, lubrication-free design that completely eliminates the risk of media contamination. They also deliver exceptional misalignment compensation and vibration damping, making them the ideal choice for ensuring the continuous and safe operation of process plants.

Mining

Mining crushing and grinding equipment face the harshest challenges of shock, vibration and heavy loads. Couplings must not only transmit enormous torque, but also play a critical buffering role in protecting expensive main motors and reducers.

We provide specially reinforced heavy-duty gear couplings and highly elastic couplings for core equipment such as ball mills, gyratory crushers and mine hoists. Their exceptional shock resistance and fatigue performance effectively absorb irregular loads during the crushing process, maximizing equipment availability and service life under extreme operating conditions.

Hoisting & Construction Machinery

Every lifting, traveling and slewing operation of hoisting equipment is critical to work safety and efficiency. Couplings play a pivotal role in power transmission and safety execution here.

Tailored to the special requirements of the hoisting industry—frequent start-stop, forward-reverse rotation, and integrated braking needs—we provide a full range of products including brake wheel couplings and universal couplings.

With highly reliable connections, precise torque transmission and compact designs, they ensure smooth operation of hoisting and traveling mechanisms, serving as the strong backing for the safe and efficient operation of equipment such as tower cranes, overhead cranes and port gantry cranes.

Power Generation

Electric power is the cornerstone of the stable operation of modern society.

From the stable base load of large power stations to the fluctuating input of renewable energy sources, couplings for power generation equipment must achieve near-perfect power transmission and system protection under the extreme conditions of high speed, high power and continuous uninterrupted operation.

We provide high-precision, high-reliability couplings for power generation units across all sectors including thermal, gas, hydro, wind and nuclear power. We are dedicated to maximizing equipment efficiency and availability, and ensuring the stability and security of the power grid.

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