Single-Leaf A-60 Fire-Rated Marine Door | Hinged Steel Door for A-Class Bulkheads

Single-Leaf A-60 Fire-Rated Marine Door | Hinged Steel Door for A-Class Bulkheads

Product Overview

The single-leaf A-60 fire-rated marine door is a hinged access door assembly for openings in A-class bulkheads where the vessel fire control plan requires A-60 integrity and insulation performance. It is normally installed in accommodation, service, control, stairway, galley-boundary, or machinery-space access positions according to the approved vessel arrangement.

The A-60 rating applies to the complete tested door assembly—not only to the steel leaf or insulation material. The approved configuration includes the door leaf, frame, insulation system, hinges, latch and handle arrangement, closing device, seals, installation orientation, supporting bulkhead, and any approved vision panel or access opening. Door size, opening direction, frame type, bulkhead thickness, and certificate scope should therefore be confirmed before quotation.

Quick Specifications

• Fire classification: A-60 marine fire door assembly → intended for an A-class bulkhead opening where 60-minute insulation classification is specified by the vessel fire control plan.
• Door configuration: Single-leaf hinged type → simpler access arrangement than double-leaf or sliding fire doors; left-hand or right-hand opening should be confirmed.
• Reference standards: SOLAS chapter II-2, 2010 FTP Code Part 3, and CB/T 3234-2011 → final compliance depends on the approved drawing, test report, and certificate scope.
• Clear opening range from supplied data: 1,500–2,000 mm high × 500–1,000 mm wide → actual approved maximum size must not exceed the certificate limitation.
• Construction: Steel leaf and steel frame with approved fire insulation → stainless steel facing or special finish is possible only when covered by the approved configuration.
• Installation: Welded or otherwise approved into a steel bulkhead / tested bulkhead assembly → frame interface, insulation continuity, and surrounding structure must match the approved installation.
• Closing arrangement: Manual hinged door with self-closing device where required → hold-open release, remote release, lock, and escape hardware are project-specific options.
• Certification: Type approval, class certificate, and MED approval can be arranged according to vessel flag, class, exact model, and order scope; they are not automatically included with every configuration.

Main Technical Parameters

Selection & Inquiry Guide

Step 1: Confirm the required fire rating as A-60 and provide the vessel fire control plan location, bulkhead type, and whether the door is for accommodation, control station, stairway, galley boundary, machinery-space boundary, or another approved position.

Step 2: Confirm clear opening width and height, steel wall cut-out, bulkhead thickness T, frame type A1 / A2 / A3, sill / threshold arrangement, and available installation space.

Step 3: Confirm door handing and operation: left-hand or right-hand hinge, opening direction, manual handle / latch, self-closing device, hold-open release, remote release, escape hardware, or locking requirement.

Step 4: Confirm material and finish: painted mild steel, stainless steel facing / construction, primer system, final topcoat, color, and corrosion-protection requirement.

Step 5: Confirm all openings and accessories before quotation: vision panel, ventilation panel, fire-hose aperture, door closer, gasket, nameplate, anti-piracy lock, or access-control interface. Each item must be covered by the approved assembly.

Step 6: Confirm certificate scope: maker certificate, material certificates, class type approval, individual class inspection, EC MED approval where applicable, quantity, delivery destination, and required delivery time. Provide the approved door schedule or drawing if available.

Structure

Single steel door leaf | Approved fire insulation core | Steel door frame | Hinges and pivot reinforcement | Latch and handle set | Self-closing device when required | Fire-resistant seals / clearances according to approval | Welded or approved bulkhead interface | Optional approved vision or access opening

Fire Safety, Installation & Quality Advantages

• The complete leaf-and-frame assembly is selected against the vessel fire control plan, avoiding the common mistake of treating A-60 as a material-only property.
• The door size and frame arrangement are controlled against the tested and approved configuration; larger openings or changed hardware require approval review rather than simple dimensional scaling.
• Frame welding, bulkhead cut-out, surrounding insulation, and fire-side orientation are checked together so that the installed boundary remains consistent with the fire-test arrangement.
• Door leaf flatness, hinge alignment, latch engagement, closing speed, and gasket / clearance condition are checked to support reliable closing and avoid local gaps at the frame.
• Self-closing and hold-open functions can be configured according to the door location and SOLAS requirement. Remote release is supplied only when specified and included in the approved control arrangement.
• Vision panels, ventilation openings, fire-hose apertures, locks, and access-control hardware are not treated as generic add-ons; their size and position must be covered by the applicable certificate.
• Watertight, weathertight, gastight, acoustic, or anti-piracy performance is specified separately. An A-60 fire rating alone does not establish these additional functions.
• Material traceability, insulation identification, production inspection, dimensional records, and certificate marking can be arranged according to the agreed quality and class inspection scope.

Custom Attributes

• Standard Basis: SOLAS chapter II-2 / 2010 FTP Code Part 3 / CB/T 3234-2011 → final applicable standard and approval route follow vessel flag, class, and project specification.
• Fire Rating: A-60 → classification applies to the tested complete door assembly and approved installation boundary.
• Leaf Type: Single-leaf hinged → confirm handedness, opening direction, and escape-route requirement.
• Clear Opening: 1,500–2,000 mm × 500–1,000 mm from supplied data → actual order size must remain within certificate limits.
• Frame Type: A1 / A2 / A3 → cut-out allowance and installation interface require approved drawing confirmation.
• Material: Painted steel or approved stainless steel option → aluminium should not be offered for this A-class steel-door page unless an equivalent approved construction is documented.
• Closing Device: Self-closing / hold-open release according to location → not every accessory is standard or included by default.
• Additional Tightness: Watertight, weathertight, or gastight only when separately designed, tested, and certified → not implied by A-60 classification.
• Certificate Requirement: Type approval / class inspection / MED according to project → certificate model, size, hardware, and validity must match the supplied door.

How It Works

Door remains closed or closes automatically when required → Steel leaf, frame, insulation, seals, and controlled clearances resist fire exposure as an approved assembly → Frame transfers mechanical loads into the supporting bulkhead → The door maintains the required integrity and insulation classification for the approved test duration and configuration

Applications

Ship accommodation corridors | A-class bulkhead access | Control stations | Stairway enclosures | Service spaces | Galley boundaries | Machinery-space boundary access subject to location requirements | Offshore accommodation modules subject to project rules | Newbuilding and approved replacement projects

Certifications & Advantages

Certificates can be arranged according to the exact approved model, door size, hardware, fire-test configuration, vessel flag, classification society, and project inspection scope. EC MED approval is applicable only when the product and certificate meet the current Marine Equipment Directive requirements.

Certification: CCS, NK, BV, ABS, DNV, LR, KR, IRS, RS, RINA, CRS, Makers Test Certificate.

Drawing & Photos

FAQ

Q1: What does A-60 mean for a marine fire door?

A1: A-60 is a fire classification of the complete tested door and supporting boundary. The assembly must satisfy the required integrity criteria and the A-60 insulation classification for the specified test period. A steel door leaf or insulation material alone cannot be described as an approved A-60 door.

Q2: Does an A-60 fire door automatically provide watertight, gastight, soundproof, or anti-piracy performance?

A2: No. These are separate functions with different structural details, seals, operating gear, tests, and approval scope. They may be combined only when the complete door model has been designed and certified for the additional requirement.

Q3: What information is required before quotation and certificate confirmation?

A3: Provide fire class, clear opening, bulkhead thickness and construction, frame type, door handing and opening direction, sill arrangement, closer / hold-open requirement, lock and accessories, material and coating, vessel flag and class, quantity, destination, required delivery time, and the approved door schedule or drawing.

Zhongyuan Ship Machinery Manufacture (Group) Co., Ltd. was founded in the 1990s and has developed into an integrated marine equipment manufacturer and project supply partner combining manufacturing, technical support, and export services. The group consists of four factories and one export trading company, with more than 300 employees, including over 20 experienced technicians and engineers. Our export company supports global customers with project communication, technical documentation, logistics coordination, and after-sales service.

Our factories are certified to ISO 9001, ISO 14001, ISO 45001, and related occupational health and safety management standards. We also hold type approval certificates from major classification societies such as DNV, LR, BV, and ABS, as well as works approval certificates, class-approved WPS procedures, and qualified welders. Our products can be supplied with certificates from IACS classification societies including DNV, ABS, LR, BV, CCS, RINA, KR, NK, IRS, and RMRS, depending on project requirements.

We manufacture a wide range of marine and offshore equipment, including deck equipment and machinery, mooring and towing equipment, deck outfitting, shafting components, rudder stocks, shaft and rudder systems.

In addition to our manufactured products, we also supply selected marine equipment through qualified partner manufacturers, including hydraulic cylinders, hydraulic power units, marine hardware, lifting and lashing equipment, hoisting and rigging products, lifeboats, rescue boats, launching appliances and davits, life-saving equipment, fire-fighting equipment, rubber fenders, rubber packing, marine pumps, valves, pipe fittings, multi-core pipes and accessories, steel wire ropes, mooring ropes, rope nets, anchors, anchor chains, and various marine chains.

Our main production facilities include CNC machining centers, CNC machine tools, CNC cutting machines, boring and milling machines, hydraulic presses, plate rolling machines, welding robots, welding equipment, shot blasting equipment, and dust-free painting workshops. These facilities enable us to support customized manufacturing and project-based production for shipbuilding, ship repair, offshore, and marine engineering projects.

We are committed to providing reliable, high-quality, and cost-effective marine equipment to customers worldwide. With our manufacturing capability, technical support, qualified supply network, and export coordination experience, Zhongyuan aims to be a trusted partner for shipyards, shipowners, offshore companies, and marine equipment distributors.