Maritime Stern Roller for Anchor Handling Vessel AHTS, SWL 600KN to SWL7000KN

Description:

Stern roller is designed for anchor handling vessel AHTS or tug boat to reduce the sliding frictional drag of cable rope or anchor chain passing through the poop deck. Stern roller designed to change sliding friction to rolling friction which extend the service life of cable rope or anchor chain and reduce the wear of aft deck.

Stern rollers are designed for safe pay in and pay out operations of steel wire rope, hose, anchor chain without any harm on load and stern. Stern rollers are widely used for Anchor handling operation.

Stern rollers with different load capacities could be customized, we can design and produce SWL 500KN to SWL7000KN stern roller.

Product Features:

1. Slop surface design friendly to towing winch and steel wire rope force transmission.
2. Sea water cooled
3. No grease spills
4. Self-lubricating laminated composite bearings
5. Low friction
6. Easy installation
7. Lighter weight and with less friction between drum bearing and axel shaft

Main Technical Specification:

1. Diameter range is between 500-5000 mm,
2. Length is 3-6 Meter,
3. Capacity: SWL 50-700 T, 500KN to 7000KN
4. Bearing: Grease lubricated or composite bearing
5. High tensile steel in cones
6. High tensile steel in skin
7. Designed for breaking strength of wire with 90º warp on roller
8. Mounting blocks designed for installation into the structure of the vessel
9. Heavy wall construction
10. Interior stiffeners for added strength
11. Application for combination usage with shark jaw and towing pin
12. Non-Destructive Testing: Magnetic Particle Testing, Ultrasonic Testing, Penetrant Testing
13. Air test for tightness
14. Sand blasting SA2.5, and top brand marine epoxy paint as specification
15. All products can be designed according to customers’ requirements
16. Custom sizes and lengths
17. Class Certificate: ABS, DNV, BV, LR, RMRS, etc.

Main Technical Parameter:

Founded in the 1990s, Zhongyuan Ship Machinery Manufacture (Group) Co., Ltd. comprises four factories and one exporting company,
employing over 300 personnel with 20 experienced technicians & engineers. Our export trade company facilitates seamless delivery of
cargo worldwide.

Our factories are certified with ISO 9001, OHSAS 18001, ISO 14001, and ISO 45001, as well as possessing Type Approval certificates
from DNV, LR, BV, and ABS. Additionally, we hold Works Approval certificates from ABS, DNV, LR, and BV, various class approved
WPS & qualified welders. All our products are eligible for certification from IACS classification societies such as DNV, ABS, LR, BV,
CCS, RINA, KR, NK, IRS, and RMRS. Our factories have secured two national patents, one for a steel plate rolling machine and two
utility model patents.

We manufacture Deck Equipment & Machinery, Mooring & Towing Equipment, Deck Outfitting, Hydraulic Cylinder, Hydraulic Power
Unit, Shaft, Rudder Stock, Shaft and Rudder system, Marine Hardware, Lifting & Lashing Equipment, Hoisting & Rigging.

We distribute Lifeboat, Rescue Boat, Boat Launching Appliance and Davit, Life-saving Equipment and Facilities, Fire-fighting
equipment, Rubber Fender, Rubber Packing, Pumps, Valves, Pipe Fittings, Multi-core Pipes and accessories, Steel Wire Rope,
Mooring Rope, Rope Nets, Anchors & Anchor Chains, Various Chains;

We pride ourselves on manufacturing & delivering reliable, high-quality products at competitive prices to our esteemed clients.

Our major equipment and facilities include various CNC machining centers with a range of CNC machine tools & CNC cutting
machines, boring and milling machines, hydraulic press machinery, plate rolling machines, welding robots, welding equipment, and
shot blasting machines, dust free paint workshop, etc.