Can an Arbor Press be used for pressing cartridges?

If you’ve ever worked in industries like ammunition manufacturing, reloading, or even certain types of 3D printing and robotics, you’ve likely encountered the humble arbor press — a tool that’s been a staple in machine shops, small production lines, and hobbyist garages for decades. As an arbor press supplier, I get this question all the time: Can an arbor press be used for pressing cartridges? The short answer? Yes — but it’s not as simple as picking up a press and shoving a cartridge into it. There’s a lot to unpack here, from the different types of arbor presses to the specific needs of cartridge pressing, and the risks that come with cutting corners. Let’s dive into this, because I’ve seen firsthand how the right tool for the job done wrong can lead to costly mistakes, or worse, safety hazards. Arbor Press

First, let’s clarify what we’re talking about when we say “cartridges.” For most people, that’s ammunition cartridges — the combination of a primer, propellant, bullet, and casing all crimped together into a single round. But it can also include things like inkjet cartridges, specialty 3D printer cartridges, or even small industrial cartridges used in hydraulic systems. For the sake of this conversation, I’ll focus on ammunition cartridges, since that’s where most of the demand for arbor press use comes from, but I’ll touch on other types too later on.

Arbor presses themselves aren’t a single tool. There are lever-operated hand presses, benchtop manual presses, and even electric or pneumatic arbor presses for higher-volume work. The core function of every arbor press is to apply controlled, linear force to a workpiece — usually with a ram that moves up and down, powered by leverage, a screw, or a motor. That makes them ideal for pressing components into place, removing bearings, straightening parts, and yes, assembling or disassembling cartridges.

Let’s start with why people even consider using an arbor press for cartridge work. For hobbyist reloaders, who assemble their own ammunition to save money or tailor rounds for specific shooting needs, arbor presses are often more accessible than specialized cartridge presses. They’re affordable, take up minimal space on a workbench, and if you already own one, you don’t have to invest in a separate tool just for reloading. For small-scale ammunition operations, arbor presses can also be a way to scale up from hand-crimping rounds without the high cost of a dedicated production press. And for things like replacing a nozzle in an inkjet cartridge or seating a bearing in a small industrial cartridge, an arbor press is perfect because it lets you apply even, consistent force without damaging delicate components.

But here’s the catch: not all arbor presses are created equal, and not all cartridge work is the same. Let’s break down the specific tasks you might be doing with cartridges, and which arbor presses work best for each.

First, disassembling cartridges. If you’re reloading, one of the first steps is often resizing spent casings — that means pulling the bullet, removing the old propellant, and expanding or shrinking the casing back to its original dimensions. Using an arbor press to pull bullets is a common application, but you have to get the right setup. A lever-style arbor press with a small, dedicated bullet puller die works here. The die fits inside the casing, and as you apply force with the press, the bullet is pulled straight out without damaging the casing’s mouth. I’ve seen hobbyists use a too-small arbor press here, though — one that can’t generate enough consistent force to pull the bullet cleanly, leading to the bullet getting stuck, or worse, the casing cracking. That’s why, as a supplier, I always recommend a benchtop arbor press with a minimum of 1 ton of force for bullet pulling. Anything less, and you’re fighting uphill every time.

Next, seating bullets. Once you’ve resized and cleaned a casing, you need to seat the new bullet into the casing’s mouth. This is a precision task — if the bullet is seated too shallow, it can move inside the casing, causing accuracy issues. If it’s seated too deep, it can increase pressure in the barrel, leading to dangerous malfunctions. An arbor press can work here, but only if you use a bullet seating die that’s compatible with the press. The die clamps onto the casing, and the ram of the press pushes the bullet into the casing to the exact depth you set. The key here is consistency — you need the press to apply the same amount of force every time, so the bullet is seated uniformly. A cheap, flimsy lever press will have uneven force, leading to inconsistent seating depths. That’s why I suggest an arbor press with a calibrated ram stop — a feature that lets you set exactly how far the ram moves, so you can repeat the same seating depth hundreds of times.

Then there’s crimping. Crimping is the step where you pinch the casing’s mouth around the bullet to hold it securely in place, so it doesn’t move when fired. This is another precision task, and it’s where arbor presses really shine for small-scale operations. A crimping die fits into the press, and the ram applies even force to crimp the casing evenly around the bullet. Again, consistency is key here. Uneven crimping can lead to the bullet moving during firing, or the casing splitting at the mouth, which is a safety risk. That’s why I always tell customers that a manual arbor press with a screw-style ram (rather than a lever) is better for crimping — it lets you control the force more precisely, so you don’t over-crimp and damage the casing.

Now, let’s talk about the risks when using an arbor press for cartridges, because this is where things can go wrong fast. The biggest risk is inconsistent force. If your press applies too much force, you can crush the casing, damage the bullet, or even ignite the propellant inside the casing. Propellant is highly sensitive to heat and impact, and a concentrated blow from an arbor press can cause it to ignite prematurely, leading to a dangerous overpressure in the cartridge. That’s why, for ammunition work, I never recommend using a used, uncalibrated arbor press. Old presses can have worn screws, loose rams, or uneven frames, which lead to unpredictable force application. If you’re working with ammunition, safety isn’t a luxury — it’s a requirement.

Another risk is using the wrong dies. A lot of people will try to repurpose dies meant for other tools, like drill presses, in an arbor press. That’s a bad idea. Drill press dies are designed for spinning, not linear force, and they can break under the pressure of an arbor press, sending shrapnel flying. You need dies specifically made for arbor press cartridge work — these dies are made from hardened steel, designed to withstand the uniform force of the press, and sized to fit exactly the type of cartridge you’re working with. As a supplier, we stock a range of these dies for all common calibers, so you don’t have to worry about mismatched parts.

What about non-ammunition cartridges? Like inkjet or laser printer cartridges, or small hydraulic cartridges for industrial equipment? Here, an arbor press is not just usable — it’s often the best tool for the job. For example, replacing an empty ink tank in an inkjet cartridge requires pushing the new tank into the housing, and an arbor press lets you apply even force to avoid breaking the delicate plastic parts. For hydraulic cartridges, pressing a new seal or valve into the housing requires precision, and an arbor press eliminates the risk of off-center force that can damage the cartridge. In these cases, even a small lever-style arbor press works, as long as you have the right fixtures to hold the cartridge steady while you press.

Now, let’s talk about scaling up. If you’re a small business looking to expand beyond hobbyist work, you might wonder if an arbor press can handle higher-volume cartridge work. For low to medium volume — up to a few hundred rounds a day — a good benchtop arbor press can work, especially if you pair it with a simple feed mechanism to load cartridges quickly. But for high-volume work, like thousands of rounds a day, an electric or pneumatic arbor press is better, because it can cycle faster and apply consistent force for hours without fatigue. That’s what we specialize in as a supplier — electric arbor presses with digital force gauges, so you can track exactly how much force you’re applying to each cartridge, reducing waste and improving safety.

I’ve had customers come to me who tried to use a cheap, $50 arbor press from a big-box store for cartridge work, and they always end up frustrated. These presses are made for light-duty work, like assembling toys or pressing parts into plastic, not for the precision required for cartridges. They have weak frames, wobbly rams, and no way to control force, leading to inconsistent results and even safety issues. That’s why investing in a quality arbor press, specifically designed for the tasks you’ll be doing, is worth every penny.

Let me share a story that illustrates this. A few months ago, a customer came to us who had been using a cheap lever press to reload .223 Remington rounds. He was crimping bullets by hand, but he was having a 10% failure rate — bullets were coming loose, or casings were splitting. He upgraded to a mid-range benchtop arbor press from our line, paired with a crimping die for .223, and his failure rate dropped to less than 1%. He told me that not only was he saving money on ammunition, but he was also much safer, because he didn’t have to worry about faulty rounds misfiring at the range. That’s the difference a good tool makes.

Now, let’s go over the key points you need to remember if you’re considering using an arbor press for cartridges:

1. Choose the right press: For ammunition work, get a benchtop arbor press with at least 1 ton of force, a calibrated ram stop, and a sturdy steel frame. For small industrial or ink cartridge work, a light-duty lever press works, but make sure it’s rated for the force you’ll need.
2. Use the right dies: Never use repurposed dies. Get hardened steel dies specifically made for arbor press cartridge work, sized for your caliber or cartridge type.
3. Prioritize consistency: The biggest advantage of an arbor press is uniform force — make sure your press delivers that, and avoid cheap, flimsy models that can’t hold consistent force.
4. Safety first: For ammunition work, always wear eye protection, work in a well-ventilated area, and never apply more force than needed. Too much force can ignite propellant or damage casings, leading to dangerous malfunctions.
5. Know your limits: If you’re doing high-volume ammunition work, an electric arbor press is a better investment than a manual one.

At the end of the day, an arbor press can absolutely be used for pressing cartridges — but only if you approach it with the right equipment, knowledge, and respect for the task. It’s not a one-size-fits-all tool, but when you match the press to the job, it’s reliable, affordable, and precise, whether you’re a hobbyist reloading rounds or a small business servicing industrial cartridges.

If you’re looking for an arbor press that’s purpose-built for cartridge work, or if you have questions about which model is right for your needs, reach out to our team to discuss your requirements and get a custom recommendation tailored to your operations. We’re here to help you choose the right tool for the job, so you can work safely, efficiently, and get consistent results every time.

Wood Lathes References:

1. Reloading Press Basics, National Rifle Association of America, 2022.
2. Arbor Press Selection Guide, American Machinist’s Association, 2021.
3. Safety Standards for Ammunition Reloading, Occupational Safety and Health Administration, 2020.
4. Precision Press Tools for Cartridge Assembly, Industrial Manufacturing Journal, 2023.

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