How to Choose a Gravity Roller Conveyor?

When you’re in the business of moving goods with solid, flat bottoms—think boxes, bins, pallets—you'll likely be familiar with the trusty gravity roller conveyor. These simple yet effective tools are the workhorses of many a shipping dock, stockroom, and assembly area. Because they're not just budget-friendly, they also keep ticking along without a fuss, requiring hardly any maintenance.

Picking the Right Conveyor for the Job

Conveyors come in all shapes and sizes, designed to take on loads light enough for a single person to handle or heavy enough to challenge a machine. Here's a quick rundown of gravity skate wheel conveyor types:

● Light Duty Conveyors: Ideal for smaller or lighter goods.

● Medium Duty Conveyors: The middle ground for items of moderate weight.

● Heavy Duty Conveyors: Built tough to handle the heaviest loads you can throw at them.

Factors To Consider Before Buying A Gravity Roller Conveyor

Start by figuring out the size and heft of what you'll be moving, both the tiniest and the most massive. This intel will help you nail down a few critical specs:

● How far apart should the rollers be spaced?

● How big around should they be?

● How wide should the conveyor be between its frames?

● What type of frame and floor supports will do the trick?

Your heavy duty gravity roller conveyor needs to keep at least three rollers under your load at any given moment. Why? To keep things steady and prevent your goods from doing a balancing act. If you've got really small or delicate items, you might need to bring those rollers even closer together to share the load and avoid overwhelming any single roller.

Roller Diameter

Choosing the right roller size and axle is a bit like picking out shoes; you need to get the fit right for the weight they’ll support. Go for smaller rollers, and you'll save some cash—but they'll also have a lighter weight limit. Heavier stuff? That calls for bigger, beefier rollers and axles. Also, think about how these rollers will be treated. If you're going to be tough on them, like dropping loads or using a forklift, then you'll need thicker-walled, tougher tubing.

Between Frames

When we talk about the 'between frame' (BF) width, we're measuring the gap between the inner sides of the heavy duty gravity roller conveyor’s rails. To figure out how wide that should be, take the width of your biggest item and add two inches. But there's more to it than that:

● If your rollers sit higher than the frame, you can let your packages hang over the edges a bit—as long as they're stable and not bumping into other stuff.

● If your rollers are lower than the frame, then the frame itself helps keep everything on track, acting like a little fence. In this case, make sure there's at least an inch of wiggle room on either side of your largest item.

Consider the Curves

And don’t forget about the turns. Just like a big rig needs extra room to navigate a corner, your packages will need extra space on conveyor curves compared to straightaways. This might mean adjusting the BF wider for those bends. For the exact numbers, have a look at the charts we’ve included—they’ll steer you in the right direction.

Choosing the Right Frame: Steel vs. Aluminum

When it comes to the skeleton of your gravity roller conveyor—the frame—you've got two main choices: steel or aluminum. Now, if you need something that's a piece of cake to move around and set up, aluminum is your buddy. It's like the difference between picking up a hefty textbook or a lightweight novel. But—and it's a big but—aluminum is kind of the lightweight in the gym; it can't handle as much weight as steel can.

Steel frames, on the other hand, are the heavyweights. They might not be as easy to shuffle around, but they're tough, often more budget-friendly, and they can take on more weight. Plus, they last. Think of it like a trusty old truck that keeps going mile after mile.

But it's not just about holding up your goods. The frame has got to hold its own weight, too. When you're eyeing those frame capacities, they're usually talking about what they can handle with supports spaced out at 5-foot or 10-foot intervals. If your load's really packing on the pounds, you might need to beef up the frame or add more supports underneath.

Floor Support

Okay, so now you've picked out a frame. But what's going to keep it off the ground? That's where floor supports come in. Think of them as the legs on a table. The standard height they give you is from the ground up to where the conveyor's going to sit. And guess what? They're adjustable because nobody's floor is perfect.

Your choices are pretty straightforward: H-stands are for when you want your gravity skate wheel conveyor to stay put, and tripods are for when you want something more like a pop-up stand—easy to move and set up, but just for lighter loads.

How many legs do you need? Well, at a bare minimum, a 10-foot section of conveyor should have two supports. But if you’re piling on the weight, throw in a few extra supports to keep everything steady.

Bottom Line

Let’s bring it all home. Gravity roller conveyors? Brilliant for moving those boxes and flat-bottomed goods around. But to pick the perfect one, run through this checklist:

● Smallest and Largest Load: Know the heaviest and the lightest thing you'll be moving.

● Axle Centers: You want at least three rollers touching your stuff at any time to keep it stable.

● Roller Diameter: More weight means you need bigger rollers and stronger axles.

● Between Frame Width (BF): Measure your biggest package, add a couple of inches, and consider how curves affect the space needed.

● Frame Type: Aluminum is light and easy; steel is strong and durable.

● Floor Supports: Choose tripods for a lightweight, temporary setup or H-stands for a more permanent solution.

Make sure to consider each point carefully to ensure your gravity skate wheel conveyor is a perfect match for your needs—it's all about making your life easier, after all! After you’re done with it, come to YiFan Conveyors, and let us handle the rest!