ARK Boat Trailer Winch – 900kg, 5:1 & 1:1 Dual Gear with Magnetic Handle & Snap Hook (SKU: W905W)

ARK Boat Trailer Winch – 900kg, 5:1 & 1:1 Dual Gear with Magnetic Handle & Snap Hook (SKU: W905W)

ARK’s W905W Large Boat Winch is designed for serious boaters who need serious pulling power. With a 900kg rating, dual-speed gearing, and a patented magnetic handle system, it makes launching and retrieving large boats smoother, safer, and smarter.

Big Power Meets Smart Design:

This winch includes a game-changing magnetic snap-on handle that stays locked in until you remove it—no more flying handles mid-retrieve! It also features a brake control system for controlled launches, and rust-resistant construction for harsh marine environments.

Key Features:

• Rated capacity: 900kg – ideal for large boats
• Two gear ratios: 5:1 for heavy loads, 1:1 for quick rewind
• Patented magnetic snap-on handle – secure & user-friendly
• UV-coated 50mm x 7.5m polyester webbing
• Forged steel snap hook for high-strength connection
• Launch control brake system for added safety
• Rust and saltwater resistant construction
• Heavy-duty stainless steel bushes and solid plate gears
• Comfort-grip handle for easy cranking

Pull like a pro, winch like a warrior—this is trailer tech done right.

ARK Winch Family Series – Product Overview

Frequently Asked Questions

Q: What’s the load capacity of this winch?

A: It’s rated at 900kg, perfect for large boats and serious trailer loads.

Q: What’s special about the magnetic handle?

A: It locks into place magnetically and only releases when you want it to—safe and secure during use.

Q: How many gear speeds does it have?

A: Two! A 5:1 gear for heavy pulling and a 1:1 for fast rewinding.

Q: Is the strap long enough for boat ramps?

A: Yes, the strap is 7.5m long—ideal for most ramp lengths.

Q: Is it saltwater resistant?

A: Absolutely. Built with rust-resistant components and sealed bearings for marine use.

How to Measure Winch Load Rating – What Does It Really Mean?

When choosing a hand winch for your trailer or boat, it’s crucial to understand what the rated capacity (also called “load rating”) actually refers to, and how it’s determined. Let’s break it down:

1. What Is a Winch’s Load Rating?

The load rating is the maximum weight a winch can pull under ideal conditions on a level surface, assuming no friction. For example, a winch rated to 900kg means it can pull up to 900kg of rolling weight.

Important: This is not the same as lifting weight vertically – it’s pulling a load across a surface (usually a boat hull on rollers or skids).

2. What Is It Measuring?

• It measures the pulling power of the winch itself (the gear system strength and crank leverage).
• It does not measure the load your trailer can carry – that’s a separate rating.
• It does not mean your boat or vehicle has to weigh less than 900kg – more on this next!

3. How Do You Choose the Right Winch for Your Boat?

Here’s a basic rule of thumb:

Winch rating = 1/2 to 1/3 of the boat’s total weight

Why? Because most trailers have rollers or skids to reduce friction. A 1200kg boat on a roller trailer might only need a 400–600kg rated winch.

But if you’re using a skid trailer or launching uphill or on grass, increase the winch rating to be closer to the boat’s weight.

4. Factors That Affect Pulling Power

• Friction: Boat slides on rollers easier than skids.
• Incline: Pulling uphill increases effective load dramatically.
• Winch Gear Ratio: Higher ratios (e.g., 12:1) = more power, less speed.
• Length of Strap Out: More line out = less mechanical advantage due to drum diameter change.

5. What Happens If You Underrate or Overrate?

• Underrated winch = heavy cranking, risk of breakage or failing gears
• Overrated winch = okay, but heavier, more expensive, and sometimes slower

6. What About Dyneema vs Steel Cable vs Webbing?

• Dyneema Rope: Super light, strong, safe to handle, floats – great for marine use
• Steel Cable: Strong but heavy, can fray, needs gloves
• Webbing Strap: Easy to handle, won’t kink, ideal for light to medium boats

7. Final Summary – Who Needs What?

Pro tip: Always check that the winch is mounted securely to a strong point and use quality mounting bolts!

Need Help Choosing?

Browse our full range of ARK winches or contact us for tailored advice based on your setup.