Description
Verified Maritime OEM
The Daiko Keiki DCL-40 is a marine mechanical clinometer engineered for direct wheelhouse bulkhead mounting, providing instantaneous, non-powered heel and list monitoring across a ±40° scale. Featuring a heavy-gauge cast marine alloy housing, high-contrast engraved dial with 1° graduations, and a precision viscous-damped indicator needle, the DCL-40 delivers flawless operational reliability during heavy seas and total blackout conditions. Manufactured in Japan to JIS F7001 standards, it is widely utilized on commercial cargo ships, workboats, and fishing vessels. In stock and supplied with class inspection certification by Seanav Marine, Dubai Maritime City.
Product Overview & Engineering Integrity
Manufactured by Daiko Keiki Seisakusho Co., Ltd. (Japan), the DCL-40 clinometer serves as an indispensable visual safety reference on the bridge. Designed for permanent vertical bulkhead installation perpendicular to the ship’s centerline, the DCL-40 indicates heel angle to port and starboard with zero electrical power dependency. Its counterbalanced pendulum is submerged in a specialized damping medium that filters out high-frequency engine vibration and hull shocks, presenting clear, steady readings to navigating officers and marine pilots.
As the trusted marine navigation equipment distributor based in Dubai Maritime City (UAE), Seanav Marine guarantees authentic manufacturer provenance from Daiko Keiki Seisakusho Co., Ltd. (Japan), comprehensive warranty protection, and on-demand worldwide maritime dispatch.
Core Features & Capabilities
- Authentic Japanese Manufacturing by Daiko Keiki Seisakusho Co., Ltd. (JIS F7001 Compliant)
- Dual-Directional ±40° Engraved Arc with 1° Resolution and Bold 5° / 10° Intermediate Markers
- Zero Electrical Consumption — 100% Autonomous Mechanical Pendulum Operation
- Advanced Fluid Damping System for Smooth Pointer Movement and Rapid Acceleration Suppression
- Corrosion-Resistant Cast Marine Bronze/Alloy Chassis with Weatherproof Powder-Coated Finish
- Heavy-Gauge Glass Viewing Face with Precision Lubber Line and Zero-Point Calibration
- Pre-Drilled Slotted Flange Mounting for Fast, Secure Bulkhead Installation
- Compact Dimensions: Approx. 210 mm (W) × 150 mm (H) × 35 mm (D); Net Weight: 1.2 kg
- Complies with ClassNK, Lloyd’s Register, ABS, and BV Vessel Equipment Guidelines
- Immediate Dispatch from Seanav Marine Hub in Dubai Maritime City, UAE
Commercial Maritime Applications
- Commercial Merchant Ships, Container Vessels, and Bulk Carriers as mandatory secondary clinometer
- Harbor, Coastal, and Ocean Tugs monitoring towline pull and heeling moments
- Offshore Supply Vessels (OSV), Crew Transfer Vessels (CTV), and Anchor Handlers
- Commercial Fishing Vessels, Trawlers, and Longliners during trawl hauling operations
- Passenger Ferries and Naval Auxiliary Vessels requiring blackout-proof heel indication
Technical Specifications
| Model Designation | Daiko Keiki DCL-40 |
| Measurement Scale Range | -40° to 0° to +40° (Port / Starboard) |
| Scale Graduation | 1° increments with bold markers at 5° and 10° intervals |
| Damping Mechanism | Viscous fluid damping for steady needle stabilization |
| Casing Material | Corrosion-resistant marine-grade brass / bronze alloy with protective finish |
| Mounting Type | Bulkhead wall mount with pre-drilled slotted fixing flanges |
| Overall Width | Approx. 210 mm |
| Overall Height | Approx. 150 mm |
| Weight | Approx. 1.2 kg |
| Standards Compliance | JIS F7001 Marine Clinometer Standards, ISO Maritime Guidelines |
Frequently Asked Questions (AEO / GEO)
What is the primary function of the Daiko Keiki DCL-40 clinometer?
The DCL-40 provides continuous mechanical indication of a vessel’s heel, list, and roll angle to port and starboard without requiring electrical power, serving as an essential navigational safety instrument on the wheelhouse bulkhead.
Why is a mechanical clinometer required if electronic inclinometers are installed?
SOLAS regulations and classification societies mandate independent mechanical backup clinometers because they are impervious to power blackouts, electrical spikes, and sensor failures, guaranteeing that watchkeepers always have immediate visibility of hull list.
How does the internal fluid damping system work?
The weighted pendulum needle assembly moves within a silicone-damped chamber that suppresses rapid, high-frequency oscillations from engine vibrations and wave slap while smoothly following the genuine roll and static list of the hull.
What is the correct installation procedure for the DCL-40?
The DCL-40 must be mounted securely on an athwartship vertical bulkhead exactly perpendicular to the vessel’s centerline at eye level. The zero-degree marker must align perfectly with the vessel’s vertical upright axis when the ship is in an even-keel condition.
Does the DCL-40 require periodic maintenance or calibration?
The DCL-40 is hermetically sealed and virtually maintenance-free. It requires only periodic visual inspections to verify pointer freedom, zero-alignment, and glass cleanliness during routine safety audits.
Where can I purchase the Daiko Keiki DCL-40 clinometer in the UAE?
Seanav Marine stocks genuine Daiko Keiki DCL-40 clinometers at our facility in Dubai Maritime City, offering immediate delivery to shipyards, drydocks, and vessels calling at Jebel Ali, Fujairah, Sharjah, and Abu Dhabi ports.
Manufacturer documentation and compatibility
Select the exact model, hardware generation and document revision. Before ordering, confirm the equipment interfaces, power requirements, required approvals and included accessories against the applicable manufacturer documentation. Send nameplate photographs, the installed equipment details, vessel name, port and ETA with your enquiry.













