MARINE ELECTRIC ACCOMODATION PNEUMATIC WINCH PD16L/RDD 151227

Product Description: MARINE ELECTRIC ACCOMMODATION PNEUMATIC WINCH MODEL PD16LRDD

1. General Overview
The MARINE ELECTRIC PD16LRDD is a heavy-duty, pneumatically powered accommodation ladder winch designed for safe and reliable deployment and retrieval of accommodation (gangway) ladders on marine vessels. The “151227” denotes a manufacturing date code , indicating a proven design with established service history. This winch is engineered for durability in the harsh offshore and maritime environment.

2. Primary Function & Application

• Purpose: To mechanically lower and hoist the ship’s accommodation ladder, ensuring controlled, safe, and efficient crew and personnel transfer between the vessel and dockside or between vessels (ship-to-ship).

• Typical Vessels: Offshore support vessels (OSVs), platform supply vessels (PSVs), crew transfer vessels, ferries, research vessels, and other commercial ships requiring robust personnel access solutions.

3. Key Designations (Model Code Breakdown: PD16LRDD)

• PD: Likely denotes the Pneumatic Drum winch series.

• 16: Indicates the drum capacity or a key rating, often related to the wire rope diameter (e.g., suitable for 16mm rope) or a specific load rating. (Note: Exact tonnage should be verified from official MARINE ELECTRIC datasheets for this model).

• LR: Typically stands for Low Reflector or Low Rail, referring to the winch’s compact design profile, allowing installation in spaces with limited overhead or lateral clearance.

• DD: Signifies Double Disc brake, a critical safety feature providing redundant braking force to hold the ladder securely in any position.

4. Core Features & Technical Specifications

• Power Source: Pneumatic (Air) Motor. This makes the winch intrinsically safe for use in hazardous areas where flammable gases or vapors may be present (e.g., tanker decks, offshore platforms). It is also resistant to overload and stalling damage.

• Braking System: Fail-safe, spring-applied, air-released double disc brake. This is the primary safety feature. The brake automatically engages to hold the load if air pressure is lost or power is cut. The “double disc” design offers high torque and redundancy.

• Control System: Typically operated via a pendant remote control with forward/stop/reverse functions, allowing the operator a clear view of the ladder during operation.

• Construction: Heavy-duty steel fabrication with corrosion-resistant coatings (e.g., marine-grade paint, galvanization) to withstand saltwater spray and extreme weather.

• Drum: Grooved for even spooling of wire rope. Equipped with rope guards for safety.

• Gearbox: High-efficiency, heavy-duty reduction gearing for smooth operation and controlled speed.

5. Principal Advantages

• Explosion-Proof & Safe: Ideal for hazardous zone classification due to air-powered operation.

• High Reliability & Durability: Simple, robust design with minimal electrical components vulnerable to moisture and corrosion.

• Precise Control: Pneumatic motors allow for smooth start-up and variable speed control.

• Critical Safety: The fail-safe brake system ensures the accommodation ladder cannot free-fall.

• Low Maintenance: Pneumatic systems are generally easier to maintain in marine environments compared to complex hydraulic systems.

6. Typical Components (Included/Related)

• Pneumatic motor unit

• Gear reduction housing

• Winch drum with rope guard

• Double disc brake assembly

• Base frame

• Control valve manifold

• Remote control pendant (on air hose)

• Mounting hardware

7. Compliance
Designed and manufactured to meet or exceed relevant maritime standards, which may include:

• Class Society Rules: ABS, DNV, Lloyd’s Register, etc.

• International Standards: SOLAS (Safety of Life at Sea) requirements for embarkation appliances.