The Lortone 3A Rotary Rock Tumbler is one of the most trusted rock tumblers for beginners, hobbyists, and anyone who wants a compact, dependable machine for polishing smaller batches of rocks and minerals.
With a 3 lb. rubber barrel, the 3A is ideal for tumbling smaller stones up to approximately 1-1/4" in size. Its durable all-rubber barrel operates quietly while the molded ribs inside the barrel improve tumbling action, helping your rocks move efficiently through each stage of the polishing process.
Whether you're tumbling agate, jasper, quartz, petrified wood, or other suitable materials, the 3A provides the simple, reliable operation that has made Lortone tumblers a favorite among rock tumblers for decades.
Key Benefits:
- 3 lb. Single Barrel – Perfect for smaller batches and individual tumbling projects without the capacity of a larger dual-barrel machine.
- Quiet Rubber Barrel – The thick rubber barrel helps reduce tumbling noise while providing excellent durability for repeated use.
- Enhanced Tumbling Action – Molded ribs inside the barrel help lift and turn the stones for more effective grinding and polishing.
- Compact Footprint – Measuring just 6" wide by 9.5" long, the 3A fits easily on a workbench, hobby table, or other small workspace.
- Built for Long Tumbling Cycles – Designed for the extended operating times required to transform rough rocks into polished stones.
- Easy to Use – A straightforward design makes the 3A an excellent choice for beginners while still providing the reliability experienced rock tumblers expect.
- Versatile Rock Tumbler – Great for polishing agates, jasper, quartz, petrified wood, and many other lapidary materials.
One 3 lb. Barrel for Smaller Batches
The Lortone 3A features a single 3 lb. molded rubber barrel, making it a great choice when you don't need the larger capacity of a dual-barrel tumbler.
The barrel is sized for smaller stones up to approximately 1-1/4 inches. For the best tumbling action, the barrel should be loaded with an appropriate combination of rocks, abrasive, and water rather than simply filling it with rocks.
The single-barrel design also makes the 3A a convenient option for beginners who want to learn the tumbling process without investing in a larger machine.
Quiet, Durable Rubber Barrel
One of the advantages of a Lortone tumbler is its rubber barrel construction. The rubber naturally helps absorb sound and vibration during operation while providing a durable surface that can withstand repeated tumbling cycles.
The inside of the barrel features molded ribs that help lift and reposition the rocks as the barrel rotates. This increased tumbling action helps the abrasive work more effectively against the stones.
Compact Design for Home Rock Tumbling
The 3A is small enough to fit comfortably on most workbenches and hobby tables.
Base dimensions: 6" W × 9.5" L
Its compact footprint makes it particularly appealing for new rock tumblers who want a quality machine without dedicating a large amount of space to their tumbling setup.
Built for the Rock Tumbling Process
Rock tumbling isn't a quick process. Each stage can take several days or longer, and a complete four-stage polishing cycle can take several weeks.
The Lortone 3A is designed specifically for this type of extended operation. Its simple mechanical design and durable construction make it a dependable choice for running repeated batches of stones over time.
Specifications
- Barrel Capacity: 3 lbs.
- Number of Barrels: One
- Barrel Material: Molded rubber
- Maximum Recommended Stone Size: Approximately 1-1/4"
- Base Dimensions: 6" W × 9.5" L
- Barrel Interior: 4-1/8" depth × 3-7/8" diameter
- Barrel Design: Ribbed interior for enhanced tumbling action
- Power: 115V
- Use: Rotary rock tumbling and polishing
- Manufacturer: Lortone
Important: The Lortone 3A requires periodic oiling. Follow the manufacturer's operating and maintenance instructions for proper lubrication and care.
What Comes Included
Your Lortone 3A includes:
- 1 Lortone 3A rotary tumbler
- 1 three-pound molded rubber barrel
- Barrel lid and components
- Operating instructions
Complete Your Rock Tumbling Setup
The tumbler is only one part of the rock polishing process. To turn rough rocks into smooth, polished stones, you'll also need the appropriate tumbling grit, polish, and tumbling media.
If you're just getting started, consider adding a complete 4-stage grit and polish kit along with a great mix of rough stones.
A Great Mix of Rough Stones to Start Tumbling
The included rough stones aren't just filler—they're selected to give you a great introduction to the rock tumbling process.
The set includes a colorful mix of agates, jasper, and petrified wood, three popular tumbling materials that are well suited to rotary tumbling and can produce beautiful results when properly prepared and polished.
Agate is a favorite among rock tumblers because of its hardness, durability, and beautiful colors and patterns. As the rough material is ground and polished, the natural banding, translucency, and patterns within the agate become much more visible.
Jasper is another excellent tumbling stone. Its hardness allows it to hold up well through the multiple stages of grinding and polishing, while its wide variety of colors and patterns gives you plenty of visual variety in the finished stones.
Petrified wood adds something different to the mix. Although it began as wood, the original organic material has been replaced by minerals over millions of years, preserving the wood's natural grain and patterns. When polished, petrified wood can reveal beautiful colors, intricate patterns, and a glassy finish.
Why These Stones Make a Great Starter Mix
One of the most important things when learning to tumble rocks is choosing materials that can successfully go through all four stages of the process. Agate, jasper, and petrified wood are all durable materials that are capable of taking a beautiful polish.
The combination also gives you a chance to see how different types of rocks respond to the tumbling process. You'll start with rough, natural material and watch the stones gradually become smoother and more colorful with each stage.
The stones are selected and sized with small rotary tumblers in mind, making them a convenient starting point for the 3 lb. barrel on the Lortone 3A.
Having everything you need for all four stages makes it much easier to get started and helps eliminate the guesswork of choosing the correct abrasives.
We also offer plastic pellets and ceramic tumbling media that can be used to properly fill the barrel during the later stages of polishing and help protect your stones from excessive impact.
Why Choose the Lortone 3A?
If you want a compact, dependable, easy-to-use rock tumbler, the Lortone 3A is an excellent choice.
It has the capacity to handle smaller batches while offering the quiet operation, durable rubber barrel, and proven design that have made Lortone a trusted name in rock tumbling.
For larger batches or the ability to tumble two loads at once, consider stepping up to the Lortone 33B, which provides two independent 3 lb. barrels.
Start small. Learn the process. And turn your favorite rough rocks into polished stones you'll be proud to keep, display, or use in your next lapidary project.
