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ProMark Offroad Blog

Drum Diameter and Line Speed for Offroad Winches

Along with the gear ratio, the drum diameter of your winch has a direct effect on line speed and pulling power. As more layers of cable pile up on the drum, the pulling power from your winch decreases and the line speed of the cable drops.

The rated line pull per layer drops up to 20 percent for the first layer of cable on top of the base layer and then 10 percent or more for layers after that.

Typical Rated Line Pull Per Layer

Example: 8000 lb. Winch

Layer of Cable 1st layer 2nd layer 3rd layer 4th layer
Rated line pull per layer 8000 lbs. 6540 lbs. 5550 lbs. 4750 lbs.

 

The smaller the diameter of the drum, the faster the layers pile up and the faster your pulling power drops. On the other hand, a larger diameter drum means that the size of the winch housing has to increase in order to make room for the cable wrapped around the drum. For vehicles with tight mounting spaces, this can be a problem.

Same thing goes for drum length. The shorter the winch drum, the faster the pulling power will drop. Yet the longer the winch drum, the bigger the winch housing needs to be.

The drum diameter and length of ProMark Offroad winches are designed to provide the best combination of optimal line speed and compact housing dimensions.

Electrical Requirements for Winches

Winching Tip of the Week from ProMark Offroad

 

Winching Tip of the Week: Make sure your battery and alternator are up to the challenge of winching.

Silver Back Recovery WinchElectrical winches use a lot of power. Make sure your battery and power supply meet the electrical requirements for your winch model. Check the specifications for your winch supplied by the manufacturer to make sure your battery and power supply are able to handle the electrical load, or you could risk damaging your winch, battery, or alternator.

If the winch is under heavy use, consider upgrading to dual batteries and a heavy-duty alternator for best performance.

Dynamic vs Mechanical Winch Brakes

The Outback Series winches have both dynamic and mechanical brakes.

The Outback Series winches have both dynamic and mechanical brakes.

A dynamic winch brake uses the resistance from the winch motor to prevent the drum from turning. It’s a natural braking mechanism built into the winch.

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Unless you plan to use your winch as a hoist, a dynamic brake should be all you need. Winches with dynamic brakes should never be used for a hoist system.

The excessive force on the winch cable caused by hoisted weight will cause the line to “bleed” out, making the load unsafe and endangering the user. If you plan to use your winch as a hoist, make sure the winch you purchase is specifically designed for this purpose.

A mechanical winch brake is a physical brake, like on a car, that stops the drum from turning when there is a load on the cable. Mechanical brakes are optional on most ATV winches, although some winches come with both dynamic and mechanical brakes.

Which Is Better: Dynamic or Mechanical?

The dynamic braking system is sufficient for most ATV winch owners; however, a mechanical brake can be installed in addition to the dynamic brake in order to offer better control and prevent roll back. The XT 1500 winch and the Outback Series winches are designed with a mechanical winch braking system.

The downside of a mechanical brake is the added weight (winches are heavy enough as it is) and the increased size of the winch body. The weight and size issue can be a big deal for ATVs and UTVs with tight mounting spaces.

If you plan to use your winch as a hoist, however, you will need a winch with a mechanical brake to securely hold a vertical load.

ATV Plow Weight

Compensating for the Weight of the Plow

A heavy ATV plow may require a stiffer suspension using spring spacers.

A heavy ATV plow may require a stiffer suspension using spring spacers.

Depending on the size of your ATV and the weight of your plow, you might find that even the stiffest suspension setting isn’t enough to compensate for the weight of the plow. One of the easiest ways to fix this is to add spacers to the front and rear springs. It’s a quick fix, and the spacers can just as quickly be taken out when plow season is over.

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Stiffening the suspension with spacers will keep the plow blade from bottoming out on hills and steep driveways and improve the performance of your ATV when a heavy plow is attached.

Why Spacers Are Better Than HD Springs

Heavy duty springs are another option to stiffen the suspension, but spacers are preferred, since they can easily be inserted or removed as needed. When you have the plow on, you can install the spacers. And when plow season is over, you can just as easily remove the spacers for a better ride. (HD springs tend to make for a harder ride and tougher handling.) Spacers are also easier to install than new springs because they don’t require you to take anything apart. Just jack up the bike and install the spacers.

Keeping It Even

It’s best to keep the front and rear suspension at the same stiffness, so if you add spacers to the front springs, you’ll also want to add them to the rear. Since the spacers will raise the machine in the front end, make sure the rear is raised to the same height.

Adding Rear Weight

Another way to compensate for the extra plow weight on the front of your ATV is to load a few sandbags on the rear rack. The rear weight will help with traction and keep the plow from scraping the ground on steep grades. Make sure you strap down the sandbags to secure them in place.

Winch Contactor Location

4 Post Winch Contactor

4 Post Winch Contactor

The contactor is mainly a safety component for your winch system. It separates the winch from the power source when not in use and prevents the motor from overheating. The contactors that come with ProMark Offroad winches are sealed, which prevents moisture from seeping into the contactor box.

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Keeping It Clean and Dry

The winch contactor location may affect how long the contactor will last. Despite the fact that the contactor is sealed, we still recommend that the contactor be located in a clean, dry area to protect it from exposure to rain, water, and other elements that wear down the protective seal prematurely. Repeatedly submerging the contactor in water may compromise the waterproof seal. The more you can keep the contactor out of the water, the better.

Keeping It Close to the Power Source

The contactor should also be mounted close to the battery, if possible. The closer the contactor is to the source of power, the better. Also, the length and gauge of the wires supplied with the winch are designed to safely carry a certain amount of electrical load. If you swap out these wires for longer wires, make sure the new wires can handle the load.

Wire Length and Gauge

If the wires are not long enough to reach the battery, switch mounting point, and winch, you may need to increase the length and/or wire gauge of the wiring. If you choose to locate the winch or switch at a greater distance than the wires permit, it may also be necessary to purchase a heavier gauge wire to get the best performance from your winch. If the total length of the additional wire to be added exceeds 10 feet, use a heavier wire gauge.

Typical Mounting Locations

Typical locations for mounting the winch contactor include in or near the rear storage box and, on some models, under the seat. Other locations include under the front hood, in or near the battery compartment, and inside the tool box. The location options will vary depending on the make and model of your ATV. Make sure the location you choose allows sufficient clearance from all metal components, such as frame tubes.

Wiring the Contactor

Once you choose a location, drill mounting holes, but do not install the contactor yet, as it is easier to wire the contactor before mounting. Disconnect the vehicle ground and positive leads from the battery before connecting the wiring. Secure the wiring to hard points on the vehicle with cable ties and/or electrical tape. Make sure the wiring is not pinched (for example, by the seat) or pulled (such as when the handle bars are turned). Also make sure that the wiring does not interfere or come in contact with the engine, suspension, steering, braking, exhaust, or any sharp edges or moving parts.

Winch Mounting Kits

A vehicle-specific winch mount makes it easy to install your winch.

A vehicle-specific winch mount makes it easy to install your winch.

Although it’s possible to mount your winch directly to your vehicle, the best and most secure way to mount a winch is with a mounting kit. If you choose not to use a mounting kit, you’ll need to drill holes in the structural support of your vehicle (which most guys don’t want to do), and you need to be 100% sure that drilling those holes won’t compromise the strength of the structural support.

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The pulling forces of the winch can put a tremendous amount of pressure on the mounting location, so be aware of this if you choose to mount the winch directly to the structural support. Also be aware that without some of the equipment included in the mounting kit, you may not be able to operate your winch safely.

A winch mounting kit can be universal or vehicle-specific. Universal mount plates are generally cheaper, but you’ll most likely need to do a custom fab job to get the plate to fit just right. Vehicle-specific plates are designed with your vehicle’s specifications in mind, which means you can easily mount your winch without customizing the plate. So although you might shell out a few more dollars for a vehicle-specific plate, the ease of installation is worth it.

Another option is to go with a receiver hitch mount. These mounts are designed to be moved from front to rear for more winching options. You can also remove the winch and mount altogether if you don’t need it. It takes some extra weight off your quad or truck and keeps your winch out of the elements when it’s not being used.

Winter Off Road Trail Driving

Dont drive off road in the winter without a winch.

Don't drive off road in the winter without a winch.

Driving off road in the winter has its own unique challenges and rewards. Despite the cold, many off roaders enjoy the solitude and beauty of a winter excursion. Driving off road on snow and ice is a lot of fun, but you should be aware of several differences between trail riding in the summer and trail riding in the winter.

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When driving off road anytime, especially in winter, use common sense. Getting stuck in cold weather is a lot more dangerous and life-threatening than getting stuck in the warmer months of the year. Don’t take your safety, or the safety of those traveling with you, lightly.

Driving in Snow

Make sure you have a good gauge of how deep the snow is and how dense it is. If the snow has frozen and thawed several times, or the snow depth includes layers from several snowstorms, there may be differing densities in the snow. For example, a hard layer of snow may be crusted between two soft layers. This hard layer can make driving difficult. Also, remember that even though in the morning you may pass easily over a hard layer of snow on your way in, the afternoon sun can melt that top layer and make the return pass much more difficult.

Usually early season snow is easier to drive through than late season snow because there’s less snow (and densities) built up from snowstorms throughout the season. If the snow is too deep, your rig can easily get high centered. And if the snow is heavy and deep enough, even a good, solid recovery winch might have trouble pulling you out.

Don’t let too much snow pack under the rig. It can freeze the engine and clog the radiator. Snow bashing is hard on the rig, so take it easy when you’re trying to break through the trail. Drive forward slowly, back up, and repeat. Take turns breaking a trail with the other rigs in your group. It saves your rig from taking all the abuse, and it gives everybody a chance to get in on the fun.

Driving with Tire Chains

Use your discretion on when to use tire chains. If you can drive easily on top of a hard-crusted, deep drift, you might be better off without chains, which can churn up the top crust and sink you deeper into the drift. Chains work great in more shallow drifts, say up to 3 feet deep, where the bottom is hard enough to provide solid traction for the chains. Be extra careful when driving on icy rock faces with chains. You’ll have very little control on these surfaces.

Watch out for stumps, logs, roots, rocks, and other obstacles that are hidden under the snow. These can cause major damage, especially if you’re driving with chains. You can easily break an axle or hub, or worse.

Besides the precautions for winter off road driving, remember to follow other off road safety tips, such as traveling with other rigs, checking the weather before you leave, and leaving your travel plans with friends or family at home.

An Inside Look at ProMark Offroad

Along with the transition to our new Web site at ProMarkOffroad.com, we’ve also been moving into our new, expanded office and warehouse space. Now that we’re a little more settled in, we thought you might like to take a look around.

Entrance to the office

Entrance to the office

Unloading containers and shipping out more winches to our customers

Unloading containers and shipping out more winches to our customers

Our new office (and yes, the Christmas tree is still up)

Our new office (and yes, the Christmas tree is still up)

Our new warehouse with 51,000 square feet of space for more new off road products!

Our new warehouse with 51,000 square feet of space for more new off road products!

The ProMark Offroad ATV, ready for another brutal Minnesota winter

The ProMark Offroad ATV, ready for another brutal Minnesota winter

Welcome to ProMarkOffroad.com!

ProMark Offroad LogoWelcome to the new ProMarkOffroad.com! We’re excited to announce that the transformation from Gorilla Winches to ProMark Offroad is now complete with the launch of ProMarkOffroad.com.

Over the next few weeks, you will start to notice changes to our Web site that will make shopping easier for you. Watch for new products to keep rolling in, along with new, more dynamic content right here on the ProMark Offroad Blog. We hope these improvements make you happy, and we look forward to seeing you back here often!

Rest assured that we will continue to offer full service for all Gorilla Winches products as this transformation takes place. As always, questions and comments are welcome!

The PROMARK OFFROAD Team

ATV Plow FAQ

ATV Plow with 52-inch Blade

ATV Plow with 52-inch Blade

What size plow blade should I get?

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Most ATVs are roughly 48 inches wide. In order to clear a path wider than your ATV, you’ll need at least a 50-inch blade. Also, remember that if you angle the blade, the width of the cleared path will narrow.

Plow blade size also depends on the size of your ATV. Smaller ATVs (less than 500cc) may struggle under the weight of a 50-inch blade. In that case, you’ll want to go with something smaller. Larger ATVs (500cc or more) should easily be able to handle a 60-inch blade or longer. The biggest utility quads can handle even more—up to a 72-inch plow blade.

A smaller blade is lighter, easier to maneuver, and—if you use a manual lift—easier to lift. Larger blades are heavier and less maneuverable, but they cut a clean, wide path to get the job done quicker.

Straight plow blade or angled?

Straight blades are the best fit for general plowing needs. They keep the snow (gravel, dirt, etc.) in front of the ATV rather than falling off to the side. They are the best option for pushing materials straight forward and for leveling ground.

An angled plow blade (wider at one end than the other) is best for moving snow or other materials off to the side as you plow. This prevents snow from building up in front of the ATV and creating heavy loads.

What about the extra weight?

Because of the weight of the ATV plow and winch, you will need to up the suspension to the stiffest setting. Most shocks should be able to handle the extra front load, but if the stock shocks don’t cut it, you might need to look into aftermarket shocks.

What about traction?

Most 2WD quads and some underpowered 4WD ATVs will require tire chains for better traction. Two chains are good. Four chains are better. Make sure you have adequate clearance, especially if you chain up the front tires.