10Best.Guide

Rock Tumbler

Top Picks

Last Updated: April, 2023
Pros
  • Simple and well-constructed tumbler
  • Gives rocks a finished wet look
  • Foam pieces work well after step 4
  • Clear directions
  • Good packaging and containers
Cons
  • Takes a long time to complete the process
  • Price increase
Bottom Line
The National Geographic rock tumbling kit is a good product for those who are patient and willing to wait for the process to complete. It produces polished rocks with a finished wet look. However, buyers should be aware of the price increase and the need for similar-sized rocks. The foam pieces work well, and the clear directions make it easy to use. The bulk buy is a good value and lasts for a couple of years.
Pros
  • Great instruction on the bottle for each step.
  • Comes with everything you need to tumble several batches of rocks.
  • Highly recommended.
  • Good quality grit.
  • Easy to follow instructions.
Cons
  • Bottles came missing a lot of weight in bottles.
  • Jars of grit were not as big as the jar porcelain cylinders.
Bottom Line
This rock tumbler grit kit is highly recommended for beginners and produces good results. However, some customers have reported issues with missing or partially filled bottles.
Pros
  • Provides professional results
  • Quiet and efficient
  • Good customer service
  • Great for making sea glass
  • Good for beginners
Cons
  • Motor not strong enough
  • Screw knob can come off
Bottom Line
This rock tumbler is a good choice for beginners and provides professional results. It is quiet and efficient, but the motor may not be strong enough and the belt can break easily. The customer service is good and it is great for making sea glass.
Pros
  • Great selection of various stones.
  • Comes with everything you need.
  • Beautiful sets of rocks.
  • Enough media to tumble all five pounds.
  • Excellent project for kids.
Cons
  • Poorly packaged and shipped.
  • Stones were tiny and scraps were used to fill the weight.
Bottom Line
The National Geographic Rock Tumbler Refill Kit is a great addition to the rock tumbler kit. It comes with a great variety of stones and everything you need to tumble them. However, the price is high, and some customers have reported issues with the packaging and the tumbler's motor.
Pros
  • Easy to assemble and use.
  • Comes with starter set of rocks and grit.
  • Good customer service.
  • Various speeds cut stage 1 process time in half.
Cons
  • Poor quality and durability.
  • Belt and motor issues.
Bottom Line
The rock tumbler is easy to use and comes with a starter set of rocks and grit. However, it has poor quality and durability issues, with frequent belt and motor problems. The construction is cheap plastic and it is loud and noisy.

The Ultimate Guide to Buying a Rock Tumbler: Types, Features, Prices, and Tips

Overview

Rock tumblers are a great way to polish and shape rocks and stones for jewelry, crafts, and other decorative purposes. But with so many options available, it can be overwhelming to choose the right one. In this guide, we'll cover the different types of rock tumblers, key considerations when buying one, important features to look for, and prices. We'll also provide some tips to help you get the most out of your rock tumbler.

Types

1. There are two main types of rock tumblers: rotary and vibratory.

2. Rotary tumblers are the most common type and are great for beginners. They consist of a barrel that rotates on a motor, and the rocks are tumbled with grit and water. Rotary tumblers are quieter and more affordable than vibratory tumblers, but they take longer to polish stones.

3. Vibratory tumblers use vibration to polish stones instead of rotation. They're faster than rotary tumblers, but they're also louder and more expensive. Vibratory tumblers are better for harder stones and larger batches.

Key Considerations

When choosing a rock tumbler, consider the following:

- Barrel capacity: How many rocks can it hold at once?

- Noise level: How loud is the motor?

- Speed settings: How many speed settings does it have?

- Motor power: How powerful is the motor?

- Durability: Is it made of sturdy materials?

- Ease of use: Is it easy to load, unload, and clean?

- Price range: How much are you willing to spend?

- Brand comparisons: How do different brands compare in terms of quality and price?

- Customer reviews: What are other buyers saying about the product?

Features

Here are some important features to look for in a rock tumbler:

- Grit: What type of grit does it use for polishing?

- Abrasives: What type of abrasives does it come with?

- Barrel material: Is the barrel made of plastic or metal?

- Timer: Does it have a timer to automatically shut off?

- Water-resistant motor: Is the motor water-resistant?

- Rubber feet: Does it have rubber feet to reduce noise and vibration?

Prices

Rock tumblers can range in price from $30 to $500. Rotary tumblers are generally less expensive than vibratory tumblers. Higher-priced tumblers often have more features and are made of sturdier materials.

Tips

Here are some tips to help you get the most out of your rock tumbler:

- Start with softer stones and work your way up to harder ones.

- Keep the barrel no more than 2/3 full to allow room for the rocks to tumble.

- Use the right amount of grit and water for the size of the barrel.

- Clean the barrel and rocks thoroughly between each grit stage.

- Take breaks between grit stages to inspect the rocks and remove any debris.

- Use a plastic or rubber mallet to gently tap the barrel to dislodge any stubborn debris.

FAQs

Q: How long does it take to polish rocks in a tumbler?

A: It can take anywhere from a few days to several weeks, depending on the type of rock and the grit used.

Q: Can I tumble different types of stones together?

A: It's best to tumble stones of similar hardness and size together to avoid damaging them.

Q: Can I use sand instead of grit?

A: No, sand is not recommended as it can damage the barrel and the stones.

Q: Can I polish other materials besides rocks?

A: Yes, you can use a rock tumbler to polish glass, sea glass, and metal jewelry.

Conclusion:

A rock tumbler can be a fun and rewarding hobby for anyone interested in polishing stones and rocks. By considering the types, key considerations, features, prices, and tips outlined in this guide, you'll be able to choose the right rock tumbler for your needs and get the most out of it.

Runner-Ups

Pros
  • Programmable for tumbling speed and cycle time.
  • Holds a good amount of rocks.
  • Easy to use.
  • Comes with rocks to tumble.
  • Runs cool.
Cons
  • Rocks can be worn down or bruised if tumbled too fast.
  • Stone chips can break off during tumbling.
Bottom Line
The National Geographic rock tumbler is a good option for hobbyists and kids. It is easy to use, programmable, and holds a good amount of rocks. However, buyers should be aware of the potential for worn down or bruised rocks, stone chips, and the need for aftermarket polishing materials.
Pros
  • Works well for tumbling rocks and crystals.
  • Good amount of product for the cost.
  • Large containers provide plenty of product for multiple cycles.
  • Product is as advertised and polishes rocks to a high gloss.
Cons
  • Inconsistent packaging - some containers did not come with a measuring spoon.
  • Some customers experienced poor results with the product.
Bottom Line
This product is a good option for those looking for a cost-effective way to polish rocks and crystals. However, some customers have experienced poor results and the quality may not be as good as other brands. It is important to have realistic expectations and experience with polishing stones.
Pros
  • Easy to use for beginners
  • Rocks come out looking great
  • Good for parent-child activity
  • Nicely built drum and base unit
  • Good starter kit
Cons
  • Tumbler may stop working after a break
  • Attachment for lid may dislodge
Bottom Line
This rock tumbler is a good starter kit for beginners and a fun parent-child activity. It produces great results, but may have some issues with the attachment for the lid and the tumbler pushing the barrel towards one side. It is also noisy and may require additional grit for more rounds. However, the drum and base unit are nicely built and the customer service is excellent.
Pros
  • Rubber barrel makes it quiet
  • Sturdy construction
  • Good for beginners
  • Easy to use
  • Does not leak
Cons
  • Lid is difficult to remove
  • No instructions included
Bottom Line
This rock tumbler is a good choice for beginners and is easy to use. The rubber barrel makes it quieter than other tumblers, but the lid can be difficult to remove. The included grit is not the best, but it gets the job done.
Pros
  • Comes with a good variety of stones to get started with.
  • Polishes rocks amazingly.
  • Well-made product.
  • Comes with easy instructions and all tools.
  • Great for rockhounding and experimenting.
Cons
  • Noisy.
  • Takes 4-5 weeks total.
Bottom Line
The NatGeo rock tumbler is a great product for beginners and rockhounding enthusiasts. It comes with a good variety of stones and jewelry kits, and polishes rocks amazingly. However, it is noisy and takes 4-5 weeks to complete the process. The lid becomes increasingly harder to take off and put on, and it is hard to twist tightly together so it doesn't leak.
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