Marine Cast Iron Screw Lubricating Oil Pump

I. Product Overview

The marine cast iron screw lubricating oil pump is a key equipment of the ship's power lubrication system. It is specially designed for the lubricating oil circulation and transportation conditions of core components such as the ship's main engine, auxiliary engine, gearbox, and stern tube. Its core working principle is to form a closed cavity through the rotation of two or three precision-meshed screws, realizing the smooth suction, pressure boosting and continuous transportation of lubricating oil. Relying on the excellent rigidity, wear resistance and cost-effectiveness of cast iron materials, it can accurately adapt to the conventional marine working conditions of ocean-going, coastal and inland river ships, and stably transport various types of marine lubricating oils such as diesel engine oil and gear oil.

The product strictly complies with international and domestic standards such as the International Convention for the Safety of Life at Sea (SOLAS), IMO Marine Machinery Equipment Rules, GB/T 10832-2011 *Marine Pumps*, and GB/T 34524-2017 *Technical Conditions for Gear Pumps*. It has obtained certifications from mainstream classification societies such as CCS and ABS, and is widely used in various ships including 500-100000 ton-class ocean-going cargo ships, bulk carriers, inland river cargo ships and fishing boats. It is a preferred equipment that balances equipment performance and procurement costs and ensures stable lubrication of the ship's power system.

II. Core Parameters

III. Core Advantages

Cost-Effective Choice: The cost of cast iron materials is controllable, which has obvious price advantages compared with stainless steel and copper alloy pumps. At the same time, it meets the lubrication needs of conventional marine working conditions and adapts to the cost control requirements of small and medium-sized ships.

Wear and Impact Resistance: High-strength cast iron undergoes aging treatment, with high rigidity and excellent wear resistance. It can withstand the bumpy impact during ship navigation and the scouring of a small amount of impurities in lubricating oil, with a low failure rate.

Wide Adaptation Range: It can stably transport marine lubricating oils of different viscosities, adapt to the lubrication systems of various power components of small to medium-sized ships, and support graded customization of flow and pressure parameters according to needs.

IV. Typical Application Scenarios

Marine Main Engine/Auxiliary Engine Lubrication Circulation: Transports circulating lubricating oil for core components such as the crankshaft, connecting rod and cylinder liner of the main engine and auxiliary engine, forms an effective oil film, reduces operation wear, and ensures long-term stable operation of power components.

Marine Gearbox Oil Supply: Provides high-pressure and stable lubricating oil for the internal gear meshing parts of the marine gearbox, reduces meshing wear, prevents gear jamming, and ensures smooth power transmission.

Stern Tube Lubrication System: Provides continuous lubricating oil supply for the marine stern tube, forms a lubricating film between the stern shaft and the bushing, reduces friction loss, and assists in blocking seawater intrusion, extending the service life of the stern tube.

Daily Lubrication Guarantee for Small and Medium-Sized Ships: Suitable for 500-50000 ton-class inland river cargo ships, fishing boats, coastal bulk carriers, etc. As the main equipment of the whole-ship lubrication system, it balances performance and procurement, operation and maintenance costs.