Description
Verified Maritime OEM
The Daiko Keiki DCL-190(R) is a heavy-duty marine pendulum clinometer engineered for ocean-going SOLAS merchant fleets, featuring an oversized 190mm dial, twin red maximum-angle drag pointers, and an internal oil-bath damping chamber. Available in standard bulkhead flange mount (DCL-190) and console ring-bezel mount (DCL-190R), it records instantaneous heel as well as peak roll angles up to ±70° to port and starboard. Constructed from cast marine bronze to JIS F7001 standards, it enables navigators to analyze maximum extreme sea-state angles. Fully certified and stocked by Seanav Marine, Dubai Maritime City.
Product Overview & Engineering Integrity
Engineered in Japan by Daiko Keiki Seisakusho Co., Ltd., the DCL-190(R) is the premier mechanical roll indicator for deep-sea merchant shipping, offshore drilling rigs, and heavy-lift vessels. Its standout feature is the dual maximum-angle memory system: as the weighted central pendulum swings, it pushes two friction-held red drag pointers to the maximum port and starboard angles reached during a voyage. These pointers remain at peak deflection until manually reset via the central knurled knob, giving master mariners and classification inspectors an indelible physical record of severe roll events and dynamic cargo stresses encountered at sea.
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
- Precision Japanese Marine Engineering by Daiko Keiki Seisakusho Co., Ltd. (JIS F7001)
- Twin High-Visibility Red Drag Pointers recording maximum port and starboard heel deflection
- External Manual Knurled Reset Knob allowing one-touch pointer zeroing from outside the sealed case
- Extra-Large 190 mm (7.5-inch) High-Contrast Dial Face readable across wide navigation bridges
- Wide Measurement Arc: ±55° or ±70° with 0.5° Fine Engraved Increments
- Heavy Silicone Oil-Bath Damping Mechanism eliminating false pointer jitter and engine harmonic flutter
- Robust Cast Marine Alloy / Bronze Casing with Heavy-Gauge Protective Glass Lens
- Available in Bulkhead Mounting (DCL-190) or Recessed Console Bezel Mounting (DCL-190R)
- Total Weight: Approx. 2.8 kg; Dimensions: Approx. 240 mm (W) × 200 mm (H) × 50 mm (D)
- Approved for SOLAS Merchant Ships by ClassNK, ABS, DNV, BV, and Lloyd’s Register
Commercial Maritime Applications
- Ocean-Going Bulk Carriers, Ore Carriers, and Container Ships tracking extreme roll events
- Heavy Lift Vessels, Semi-Submersible Platforms, and Pipe-Laying Barges
- Crude Oil Tankers (VLCC / Suezmax) and Chemical Carriers monitoring stability
- Ocean Salvage Tugs, Deep-Sea Research Vessels, and Naval Patrol Craft
- Shipyards and Marine Classification Surveyors conducting inclination experiments and sea trials
Technical Specifications
| Model Designation | Daiko Keiki DCL-190 (Standard) / DCL-190R (Ring Type) |
| Scale Arc | Semi-circular ±55° or ±70° high-visibility engraved scale |
| Graduation | 0.5° and 1.0° high-precision division marks |
| Max Angle Indicator | Dual red drag pointers recording maximum port and starboard roll amplitude |
| Damping Technology | Precision silicone oil-bath damping with balanced counterweight |
| Housing Construction | Heavy cast marine bronze / aluminum alloy casing with glass face |
| Diameter / Dimensions | Dial diameter approx. 190 mm; casing approx. 240 mm × 200 mm |
| Net Weight | Approx. 2.8 kg |
| Standards & Approvals | JIS F7001, ClassNK / ABS / BV / DNV approval compliance |
Frequently Asked Questions (AEO / GEO)
How do the dual drag pointers on the Daiko Keiki DCL-190(R) function?
The DCL-190(R) incorporates twin friction-adjusted red pointers positioned on the dial face. As the primary pendulum swings during vessel roll, it pushes the corresponding port or starboard pointer to the peak deflection angle, where it stays even after the vessel returns to an upright position. Navigators can view the maximum roll reached during a watch or storm.
How are the drag pointers reset to zero?
The pointers are reset manually from outside the sealed casing by gently rotating the central knurled reset knob. Watchkeepers typically record the maximum angles in the deck logbook at the end of each watch and reset the pointers for the oncoming watch.
What is the difference between model DCL-190 and model DCL-190R?
The DCL-190 features an external three-hole mounting flange for surface installation directly onto bulkheads. The DCL-190R features an external circular bezel ring designed for flush console mounting into bridge navigation desks and consoles.
Can the DCL-190(R) withstand severe engine room and propeller vibration?
Yes. The pendulum assembly is counterweighted and suspended inside a sealed silicone fluid chamber that absorbs high-frequency vibrations while responding faithfully to the vessel’s true hull hydrodynamic roll.
Is the DCL-190(R) suitable for conducting vessel inclination experiments?
Yes. Marine surveyors and naval architects frequently employ the DCL-190 for official inclination tests and lightship surveys due to its 0.5° fine resolution and highly reliable damping characteristics.
Where can I purchase genuine Daiko DCL-190(R) clinometers in the Middle East?
Seanav Marine supplies authentic Japanese-manufactured Daiko Keiki DCL-190 and DCL-190R clinometers with class certificates from our warehouse in Dubai Maritime City, UAE.
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.
