We design, build, and deliver AHC systems for winches and cranes – tailored to your operation, your vessel, and your schedule. Whether you need capacity now or are planning a future project, we have a model that fits.

Two Delivery Models – Choose What Works for You

Some clients plan ahead and invest with a long-term horizon. Others need a solution on short notice. We support both paths.

Immediate need

Rental of AHC Systems

If you have an upcoming project and need AHC capacity without the long lead times, renting is the smart choice. We provide complete systems including sensors, control units, and full technical support throughout the rental period.

• Shorter lead time than purchasing
• Kolos provides installation and training
• Technical support included
• Lower capital commitment
• Ideal for single projects and short-term campaigns

Longer planning horizon

Customized Purchase

If your project is further down the line, or you need permanent AHC capacity, we build a system tailored specifically for you — matched to your crane or winch, your vessel, and your operational profile.

• Full customization to your existing equipment
• Engineering support from specification through FAT
• Sized to meet your exact Hs requirements
• Lower total cost over the system’s lifetime

Typical Use Cases

Subsea Installation

Lifting heavy subsea equipment demands precision. AHC eliminates dynamic shock loads and ensures controlled, stable deployment.

ROV Launch and Recovery

AHC reduces the risk of damage to both the ROV and the LARS system during launch and retrieval in wave conditions.

Well Intervention from Rig

Stable lifting is critical for wireline and coiled‑tubing operations, where the toolstring cannot tolerate dynamic loading.

Offshore Wind Maintenance

Component replacement and inspection on both floating and fixed turbine installations require reliable lifting performance in all sea states.

Cable Laying and Pipe Pull‑In

AHC maintains consistent wire tension and prevents sudden load variations that could damage cables or pipes.

Personnel and Equipment Handling

Where personnel safety depends directly on stable loads, AHC becomes a safety‑critical system.

What Happens When You Contact Us?

Needs Assessment

We take the time to understand your operation — area of operation, Hs requirements, existing crane or winch capacity, and project timeline. You don’t need to have all the answers up front.

Technical Specification and Proposal

Kolos prepares a system specification based on your requirements, including an assessment of the crane’s dynamic load capacity — ensuring the crane defines the operational limits, not the AHC system in isolation.

Construction, FAT, and Delivery

We build the system, carry out Factory Acceptance Testing (FAT), and support installation and commissioning onboard.

Training and Follow‑Up

Your operators receive training, and Kolos remains available for technical support throughout the system’s lifetime.