What Sea Hercules Cranes Pte. Ltd. does

Sea Hercules Cranes Pte. Ltd. is a Singapore-based, privately held manufacturer (Pte. Ltd., wholly owned subsidiary of Sea Deep Shipyard Pte. Ltd., formerly known as Interseas Shipping Pte. Ltd.) that designs and constructs equipment and components for offshore jack-up drilling rigs. Its principal activities center on the marine offshore environment, with a product portfolio that includes offshore pedestal cranes in the SH 1000 through SH 6000 series (lift capacities from 50,000 to 300,000 lbs at reference radius), customized skidding systems (cantilever/drillfloor configurations in lift-and-shift hydraulic, rack and pinion, and gripper jack variants), jack-up rig rack/chord components fabricated from 100,000 PSI minimum-yield steel, triangular truss-type raw water towers, and ABS-approved electric-drive jacking system upgrades and conversions that replace legacy hydraulic systems on aging rigs.

The company's underlying technology spans mechanical, hydraulic, and electrical systems engineered to API and ABS specifications, supported by certifications including API Q1 (manufacturing), API Q2 (inspection and servicing of pedestal cranes), ABS certification for cranes and jacking systems, ISO 9001, ISO 45001, and bizSAFE Star. Manufacturing is conducted at a waterfront yard at 6 Pioneer Sector 1, Singapore, featuring a 130m wharf at 6m water depth, indoor and outdoor fabrication areas, a 250-ton Kobelco crawler crane, gantry cranes, CNC machines, hydraulic jacking motors, and slipway and stowage facilities, with a regional operations office in Abu Dhabi serving the Middle East market.

Sea Hercules earns revenue primarily through one-time, project-based sales of customized offshore equipment to enterprise-level drilling contractors and shipyards via direct B2B engagement, complemented by onsite service and repair work (including hydraulic-to-electric conversion life-extension programs) and a parts and spares stream covering sheaves, leg guides, HPU cylinders, bolt lifter systems, collision alarms, davit cranes, and Baker Marine jacking components. Pricing is quote-based and project-specific, with no public disclosure of rates; the go-to-market emphasizes engineering expertise, certification-backed quality, and the integrated shipyard capabilities of parent Sea Deep Shipyard rather than marketing or channel-led demand generation.

Name

Sea Hercules Cranes Pte. Ltd.

Legal name

Sea Hercules Cranes Pte. Ltd.

Website

https://seahercules.com.sg

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Sea Hercules Cranes is a Singapore-based subsidiary of Sea Deep Shipyard that designs and manufactures offshore pedestal cranes, jacking systems, skidding systems, rack-chord components, and raw water towers for offshore jack-up drilling rig operators and shipyards.

Ownership category

akta.pro rank

Product category

Offshore Drilling Rig Equipment Manufacturing

NAICS

Oil and Gas Field Machinery and Equipment Manufacturing (333132)

SIC

Oil & Gas Field Machinery & Equipment (3533), Ship & Boat Building & Repairing (3730)

akta.pro primary industry

Cargo Handling & Lifting Equipment (Cranes, Derricks, Hoists) (IMAJAIAB)

akta.pro secondary industries

Drillship & Semi-submersible Rig Hull Construction (IMAJACAB), Cranes, Hoists & Rigging Equipment MRO (Mobile/Tower Cranes, Winches) (TLAKAHAE)

Keywords

• Offshore pedestal cranes
• Jack-up rig components
• Skidding systems
• Jacking system conversions
• Offshore equipment manufacturing

Headquarters

HQ city

Singapore

HQ country

Singapore

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Infrastructure, Technology or R&D, Operations, Marketing or Sales

Revenue model

1. Offshore Equipment Manufacturing: Design and construction of offshore jack-up drilling rig components including pedestal cranes, jacking systems, skidding systems, rack/chords, and raw water towers. Revenue generated from one-time equipment sales with potential for follow-on service and parts.
2. Service and Repairs: Onsite offshore service and repairs, including jacking system upgrades and conversions from hydraulic to electric systems for life enhancement programs.
3. Parts and Spare Components: Supply of spare parts and components for the company's equipment portfolio, including sheave manufacturing and leg guide enhancement.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Sea Hercules Cranes designs, engineers, and manufactures mechanical and hydraulic/electrical equipment for offshore jack-up drilling rigs, including King Post-type pedestal cranes (SH 1000 to SH 6000 series with capacities from 50,000 to 300,000 lbs), electric-drive jacking systems, skidding systems, high-tensile rack/chord components, and raw water towers. The company also provides onsite offshore service, repairs, and hydraulic-to-electric jacking system conversions for life-extension programs of aging rigs, certified to API Q1, API Q2, and ABS standards.

Product overview

Sea Hercules Cranes Pte. Ltd. is a manufacturer specializing in offshore jack-up drilling rig components. The product portfolio comprises a unified offering of offshore pedestal cranes (King Post type available in SH 1000, SH 2000, SH 3000, SH 4500, and SH 6000 series with varying lift capacities and boom lengths), complemented by supporting rig equipment including Skidding Systems (Cantilever/Drillfloor), Jack up Rig Rack/Chord components, Raw Water Tower Design and Manufacture systems, and Jacking System Upgrades and Conversions. Additional products include Bolt Lifter Systems, Collision Alarm Systems, Portable Hydraulic Power Units, HPU Cylinders, Baker Marine Jacking Systems, Davit Cranes, Sheave Manufacturing, and Leg Guide Enhancement. The company also provides Offshore Services for onsite repair and conversion work. These products form an integrated suite for offshore drilling rig operations, from crane lifting to rack/chord systems and jacking functionality.

Differentiator

Problem solved

Functional benefit

Products and services

• SH 1000 King Post Crane Offshore pedestal crane with 100 ft boom available in SH 1000S/BMC 900, SH 1000, and SH Enhanced variants, with lift capacities ranging from 50,000 to 80,000 lbs at reference radius. Diesel engine or electric driven, designed for offshore jack-up rigs and certified to ABS and API Specification 2C 7th Edition.
• SH 2000 King Post Crane Offshore pedestal crane with 120 ft boom available in SH 2000S, SH 2000, SH 2000S Enhanced, SH 2000 Enhanced, and SH 2000SE-M variants with lift capacities ranging from 90,000 to 121,275 lbs at reference radius. Designed for offshore jack-up rigs and certified to ABS and API Specification 2C 7th Edition.
• SH 3000 King Post Crane Offshore pedestal crane with 120 ft boom available in standard (SH 3000) and enhanced (SH 3000S Enhanced) variants with lift capacities up to 200,000 lbs at 30 ft radius. Designed for offshore jack-up rigs and certified to ABS and API Specification 2C 7th Edition.
• SH 4500 King Post Crane Offshore pedestal crane with 160 ft boom rated at 180,000 lbs lift capacity at 30 ft radius. Designed for offshore jack-up rigs and certified to ABS and API Specification 2C 7th Edition.
• SH 6000 King Post Crane Offshore pedestal crane with 150 ft boom rated at 300,000 lbs (133.9 MT) lift capacity at 35 ft radius. Designed for offshore jack-up rigs and certified to ABS and API Specification 2C 7th Edition.
• Skidding Systems (Cantilever/Drillfloor) Customized skidding systems for moving equipment modules, available in lift-and-shift hydraulic type, rack and pinion type (hydraulic or electric), and gripper jack configurations, built to classification approvals. Used on offshore jack-up drilling rigs for cantilever and drillfloor module movement.
• Jack-Up Rig Rack/Chord High-tensile fabricated rack-chord components, rack and pinions, and machine tools for jack-up rigs, manufactured with minimum yield of 100,000 PSI steel grade, flame-cut teeth without machining, hot/cold formed chords, and length ranges of 9 to 12 meters.
• Raw Water Tower Design and Manufacture Triangular truss-type tower systems using rack and pinion elevating mechanism for supplying seawater to jack-up rigs in jacked-up mode, designed and built to customer specifications for efficient and economical seawater supply.
• Jacking System Upgrades and Conversions ABS-approved electric drive elevating systems for upgrading and converting legacy hydraulic jacking systems on offshore jack-up rigs, with pinion speeds exceeding 1 foot per minute and high pinion holding capacity for column or truss legs. Each pinion has separate gear reduction train, electric motor, and brake system.
• Offshore Services – Onsite Service and Repairs Onsite offshore service and repair programs for jack-up rig operators, including hydraulic-to-electric jacking system conversion for life enhancement of aging 1980s-era rigs, plus inspection and servicing of pedestal cranes under API Q2 registration.
• Portable Hydraulic Power Unit Portable hydraulic power unit designed for offshore equipment operations on jack-up rigs.
• Bolt Lifter System Bolt lifter system for offshore crane and rig maintenance operations.
• Davit Cranes Davit crane systems for offshore vessel and rig operations.
• Leg Guide Enhancement Leg guide enhancement solutions for jack-up rigs to improve leg guidance and structural performance.

Quantifiable outcome

• Crane capacity range from 50,000 lbs to 300,000 lbs
• +3 more outcomes

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• Sea Deep Shipyard Pte. Ltd.coreStrategic or Co-development PartnerSea Hercules Cranes Pte. Ltd. is a wholly owned subsidiary of Sea Deep Shipyard Pte. Ltd. The parent company offers integrated shipyard services including jacking system conversion programs for life enhancement of aging hydraulic systems. Sea Hercules focuses on crane manufacturing while leveraging the parent company's shipyard facilities and capabilities.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Palfinger: Austrian manufacturer of loader cranes, marine cranes, and lifting solutions with applications in offshore and industrial markets. Adjacent competitor with marine and offshore crane product lines overlapping Sea Hercules.
• Liebherr: Diversified heavy equipment manufacturer with offshore crane offerings for drilling rigs, offshore vessels, and wind installation. Significant scale and engineering bench make it a credible competitor for large offshore crane tenders.
• MacGregor (Cargotec): Part of Cargotec, MacGregor supplies marine load handling and offshore equipment including cranes, winches, and deck machinery for offshore vessels and drilling rigs. A broader incumbent operating in the same end-market.
• NOV (National Oilwell Varco): Global oilfield equipment giant with extensive offshore drilling and production equipment portfolio including cranes, jacking systems, and rig components. Competes broadly with Sea Hercules across most offshore drilling component categories.
• Konecranes: Global crane manufacturer with broad industrial and port crane portfolio. While primarily focused on container handling and industrial cranes, its marine/offshore crane segment overlaps with parts of Sea Hercules' market.
• TTS-NMF (TTS Group / NMF): Provider of marine and offshore cargo handling equipment, including offshore cranes and deck machinery for drilling rigs and offshore vessels. Overlaps with Sea Hercules in offshore crane manufacturing for jack-up applications.

Direct peers

• Huisman Equipment B.V. Dutch-headquartered manufacturer specializing in offshore pedestal cranes, jacking systems, and heavy-lift equipment for offshore drilling rigs, wind vessels, and offshore construction. Most direct competitor to Sea Hercules in offshore pedestal cranes and rig component systems.
• Baker Marine (a Forum Energy Technologies brand): Originally a US-based specialist in jack-up rig jacking systems and offshore equipment, now part of Forum Energy Technologies. Directly competes with Sea Hercules on jacking systems and rig component offerings, including the Baker Marine jacking system that Sea Hercules explicitly lists in its catalogue.

Regional players

• Apex Logistics Offshore Engineering: Regional offshore equipment and engineering services provider serving Asia-Pacific markets. Competes with Sea Hercules for similar regional rig component work in the Singapore/Southeast Asia offshore basin.
• Sapura Energy (Kencana Offshore / rig services arm): Malaysia-based offshore services company with rig construction and component capabilities. Regional player in jack-up rig construction and outfitting services across Southeast Asia, competing for similar tenders.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/sea-hercules-cranes-pte-ltd

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sea Hercules Cranes Pte. Ltd.