stern tube shaft seal
You are here: Home » Services

Technical Advantages

Independently developed pneumatically controlled marine stern shaft sealing device, through uniform airflow pressure control, dynamic sealing compensation is achieved, rigid connection deformation is avoided, and sealing performance is improved by 30%.

Efficiency Guarantee

Modular installation process, with intelligent pressure regulation system, commissioning time is shortened by 50%, strong adaptability, and support for a variety of working conditions.

Customer Value

Reduce the risk of sealing failure, extend maintenance cycle, and reduce long-term operating costs.

Technical Advantages

Using floating chuck to clamp the tool, combined with cnc boring machine, the processing accuracy reaches it6 level, and the aperture error is controlled within ±0.02mm.

Efficiency Guarantee

Boring process replaces traditional drilling, expanding and reaming, the number of tool changes is reduced by 70%, the single hole processing efficiency is increased by 40%, and the automatic correction of deflected hole position is supported.

Customer Value

Reduce secondary rework, shorten docking time, and shorten the single project cycle by an average of 3-5 days.

Technical Advantages

Original liquid nitrogen pulse cooling system, instantaneous cooling of the inner ring of the bearing by -196℃ liquid nitrogen, and infrared thermometer to achieve ±2℃ temperature difference control.

Efficiency Guarantee

Cold installation process replaces traditional heating method, installation time is shortened by 80%, and the control accuracy of bearing interference is improved by 5 times.

Customer Value

Avoid thermal stress damage, extend the service life of bearings by more than 2 years, and reduce the risk of unplanned downtime.

Time Comparison

Seal commissioning is 2 days faster, hole processing is 3 days faster, bearing installation is 4 hours faster, and the overall project cycle is shortened by 15%-20%.

Cost Advantage

Single project saves more than 100,000 yuan in dock rental and labor costs, and equipment loss is reduced by 30%.

Data Endorsement

Cumulative service cases show that the average annual operating cost of ships that choose haipeng services is reduced by 8%-12%.
Dongtai Haipeng Marine Accessories Co., Ltd. is a professional manufacturer that designs, manufactures and processes all kinds of ship stern shafts, rudder shafts and their supporting products, stern shaft seals, stern tube bearings, upper and lower rudder bearings, intermediate bearings, bulkhead transmission devices and other ship supporting products.
Contact Us
Contact Person: +86-156-0511-1716
Add: In Fangong Industrial Park, Dongtai Town
Dongtai City

Quick Links

Product Category

Contact Us
Copyright © 2025 Dongtai Haipeng Marine Fittings Co., Ltd. All Rights Reserved. Sitemap | Privacy Policy