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Rock Tumbler Manufacturers and Brands


Thumlers Model A Rock Tumbler
Built in the 1960s, this is one of the oldest commercially made rock tumblers. It is an original Thumler's Model A on a wooden base, and it used paint cans for barrels. We believe Thumler's is the oldest tumbler manufacturer in the world. They are still in business, having sold hundreds of thousands of tumblers, if not over a million. Companies who make great products persist in the marketplace.



Manufacturers and Brands


Belt, Inc.
Chicago Electric
Covington Engineering
Dan & Darci
Diamond Pacific
Diamond Pacific Tool Corporation
Discover with Dr. Cool
Harbor Freight
JMW Sales, Inc.
Lot-O-Tumbler
Lortone
Mini-Sonic
National Geographic
NSI International, Inc.
Raytech
Reentel International, Inc.
Thumler's Tumblers
Tru-Square Metal Products
Tumble-Bee
Vibra-Sonic


Need Help With a Rock Tumbler?



If you buy a rock tumbler and have problems after the purchase, where can you go for help? Here are four places to find help:


1) The Instructions

that came with the tumbler should explain how to operate the tumbler and answer the most common questions that a buyer might have. Consult your instructions for immediate answers. If you don't have a copy of the instructions, then contact the manufacturer. They will probably be happy to send a copy to you.


2) The Manufacturer

of the tumbler has a legal duty to provide all warranty services that they promised. In our opinion, they also have some moral duty to provide other assistance, within reason, especially during the warranty period. If you don't know how to contact the manufacturer of your tumbler, check the instruction manual, or check this list of rock tumbler manufacturers.


3) The Vendor

who sold you the tumbler is not responsible for warranty service (unless they are also the manufacturer). However, they have (in our opinion) some moral duty to provide kind assistance to the customer, within reason. The vendor, at minimum, should be able to provide the customer with the name, address, phone number, and email address of the manufacturer, and tell the customer where replacement parts can be purchased.


4) Kind People

who share their knowledge. These are people who publish informative articles on websites or post instructional videos on YouTube. These people have no legal and no moral duty to help you; however, they freely allow you to view content that they have published. They are often supported by advertisers. You can find their content using a search engine such as Google, or you can visit YouTube and perform a search there. Our company has published a library of rock tumbling articles on this website that you can view without charge and a small collection of YouTube videos.



Rock Tumbler Manufacturers


A list of rock tumbler manufacturers and brand owners who we believe are in business today.


A Lot-O-Tumbler Vibratory Rock Tumbler

Belt, Inc.



Belt, Inc. is the name of the company that manufactures Lot-O-Tumblers, a brand of vibratory rock tumblers. Lot-O-Tumblers are made in two models: a "single" with one four-pound capacity rubber barrel, and a "twin" with two four-pound barrels.

Their address is Belt, Inc., 2746 Hoffman Drive NW, Owatonna, Minnesota 55060. Their website is at lototumbler.com, (507) 451-2254.

Shown in the accompanying photo is a Lot-o-Tumbler single with a four-pound barrel.





Chicago Electric



Chicago Electric is a brand of hobbyist rock tumblers sold by Harbor Freight Tools. They sell two rotary tumblers. A "single drum" model and a "dual drum" model - both of these are supplied with three-pound capacity rubber barrels.

Their address is 26541 Agoura Rd, Calabasas, California 91302. Their website is at harborfreight.com, (888) 866-5797.

Shown in the photo is a Chicago Electric rotary tumbler with two three-pound rubber barrels.





Covington Engineering



Covington Engineering is the manufacturer of hobbyist and commercial rock tumblers in three different designs. Their "Rolling Tumblers" are hobbyist machines with barrel capacities of 3, 6, and 12 pounds. They have a 40-pound commercial tumbler. And, they have a "Deluxe Tumbler" with a barrel that is inclined and hexagonal to produce what they call a "3-way tumbling action".

Their address is 715 W Colton Ave, Redlands, CA 92374. Their website is covington-engineering.com, (877) 793-6636.





Dan & Darci

is the trade name of a beginner's rock tumbler that is imported by Surreal Brands, 1303 53rd St. #249, Brooklyn, NY 11234. We purchased one of their tumblers in 2019, and a photo of that tumbler is shown on this page. For support you can find their website at dananddarci.com or contact them by email at support@dananddarci.com.



Diamond Pacific

rotary tumblers are made by the Diamond Pacific Tool Corporation. They are commercial-size machines with 25-pound, 40-pound and 65-pound barrels. Their address is Diamond Pacific Tool Corporation, 2620 West Main Street, Barstow, CA 92311. Their website is at diamondpacific.com, 800-253-2954.



Diamond Pacific Tool Corporation

is the manufacturer of Diamond Pacific rotary tumblers and three brands of vibratory tumblers, Mini-Sonic, Raytech, and Vibrasonic (all listed on this page). Their address is Diamond Pacific Tool Corporation, 2620 West Main Street, Barstow, CA 92311. Their website is at diamondpacific.com, 800-253-2954.



Discover with Dr. Cool

is a trade name of a beginner's rotary tumbler made and imported by JMW Sales, Inc., 340 A Street, Suite 1, Ashland, OR 97520, 541-708-6738. In 2019 we purchased one of their tumblers (photo shown on this page). Their web address is jmwsales.com, info@jmwsales.com.



Harbor Freight

rotary rock tumblers are sold by Harbor Freight Tools. A marketing name used for their tumblers is Chicago Electric Tumblers. They are hobbyist rotary rock tumblers in single drum and dual drum models - both with three-pound capacity barrels. Harbor Freight's address is 26541 Agoura Rd, Calabasas, California 91302. Their website is at harborfreight.com, (888) 866-5797.



JMW Sales, Inc.

, makes and imports a number of beginner's rock tumblers. These include the National Geographic rock tumblers shown in photos on this page, and the Discover with Dr. Cool rock tumbler shown on this page. Their address is 340 A Street, Suite 1, Ashland, OR 97520, 541-708-6738. Their web address is jmwsales.com, info@jmwsales.com.



Lot-O-Tumbler

is a brand of vibratory rock tumblers manufactured by Belt, Inc., 2746 Hoffman Drive NW, Owatonna, Minnesota 55060. The Lot-O-Tumbler is made in two models: a "single" with one four-pound barrel, and a "twin" with two four-pound barrels. Their website is at lototumbler.com, (507) 451-2254.


A Lortone QT-12 rotary rock tumbler
A Lortone QT-12 rotary rock tumbler with a 12-pound capacity barrel.




Lortone

is a brand of rotary rock tumblers built by Lortone, Inc., 12130 Cyrus Way, Mukilteo, Washington 98275-5700. They produce a number of tumbler models, ranging from hobbyist tumblers with a small 3-pound barrel, to large commercial tumblers with 40-pound barrels. Their 12-pound capacity QT-12 is shown in the accompanying photo. Their website is at lortone.com, (425) 493-1600.



Mini-Sonic

is a brand of small vibratory tumblers produced by Diamond Pacific Tool Corporation, 2620 West Main Street, Barstow, CA 92311. Mini-Sonic tumblers are sold with one 4-pound hopper, two 4-pound hoppers, a 4- and a 10-pound hopper, and a single 14-pound hopper . Their vibrating action is produced without using a motor - unlike many other vibratory machines. The intensity of vibration is controlled with a dial. Their website is at diamondpacific.com, 800-253-2954.



National Geographic

has relationships with numerous companies who manufacture products that are sold with the National Geographic name and logo. In 2019 we purchased two of their beginner's rock tumblers (photos shown on this page). They were made and imported by JMW Sales, Inc., 340 A Street, Suite 1, Ashland, OR 97520, 541-708-6738. Their web address is jmwsales.com, info@jmwsales.com.


A Smithsonian Rock Tumbler by NSI
One of the NSI International tumblers sold under names such as "Smithsonian Rock Tumbler" or "Rolling Stones Rock Tumbler".



NSI International, Inc.

has been selling toy rotary rock tumblers under a number of marketing names for at least 20 years. The names include: "Rolling Stones Rock Tumbler", "The Original Rock Tumbler", and the "Smithsonian Rock Tumbler" (shown in the accompanying photo). They have been selling toy tumblers for a long time, and our guess is that they have sold over a million of them. NSI's address is 12 West 27 Street, 5th Floor, New York, NY 10001. Their website is at nsi-intonline.com, (888) 425-9113.



Raytech

is the marketing name used for two brands of vibratory tumblers sold by Diamond Pacific Tool Corporation. Their Tumble-Vibe tumblers are hobbyist-size machines with 5- and 10-pound bowls. Their Adjusta-Vibe tumblers are commercial-size machines with 18- and 40-pound bowls. Diamond Pacific Tool Corporation's address is 2620 West Main Street, Barstow, CA 92311. Their website is at diamondpacific.com, 800-253-2954.



Reentel International, Inc.

is the manufacturer of Tumble-Bee rock tumblers. They are small rotary tumblers with two- and four-pound barrels. You can recognize Tumble-Bee tumblers by their yellow and black bumblebee colors. Their address is Reentel International Inc., 808 Burr Oak Drive, Westmont, IL 605591. Their website is at tumble-bee.com, (253) 833-2310.


Burnishing tumbled stones in a Thumler's UV-10 vibratory rock tumbler. Burnishing can often improve the luster of your tumbled stones.



Thumler's Tumblers

is a brand name for a large number of rotary and vibratory rock tumblers. These range from a beginner's rotary tumbler with a 2-pound capacity barrel to a quality hobbyist tumbler with a 15-pound capacity barrel. They also sell hobbyist and commercial size vibratory tumblers with bowl sizes between 4 and 45 pounds (you can see their 10-pound model operating in the accompanying video). They are built by Tru-Square Metal Products, P.O. Box 585, Auburn, WA 98071. Their website is at thumlerstumbler.com, (253) 833-2310.



Tru-Square Metal Products

is the name of the company that builds Thumler's Tumblers. They produce a wide range of rotary and vibratory tumblers. Their rotary tumblers range from a 2-pound beginners model to a 15-pound hobbyist/commercial model. Their vibratory tumblers are all upright with a wide, easy-to-reach-in bowl. They range in size from the 4-pound mini bowl to a 45-pound commercial model. Their address is P.O. Box 585, Auburn, WA 98071. Their website is at thumlerstumbler.com, (253) 833-2310.


Tumble-Bee Rock Tumbler
A Tumble-Bee TB-22 rock tumbler with two 2-pound barrels.




Tumble-Bee

is the name of a brand of rock tumblers manufactured by Reentel International, Inc. They make three models of rotary rock tumblers that use 2-pound and 4-pound barrels. You can recognize them by their yellow and black bumblebee colors. You can see their TB-22 model with two 2-pound barrels in the accompanying photo. Their address is Reentel International Inc., 808 Burr Oak Drive, Westmont, IL 605591. Their website is at tumble-bee.com, (253) 833-2310.



Vibra-Sonic

is a brand of commercial grade vibratory tumblers produced by Diamond Pacific Tool Corporation, 2620 West Main Street, Barstow, CA 92311. Vibra-Sonic tumblers are sold with 6-, 14-, and 35-pound hoppers. Their vibrating action is produced without using a motor, unlike many other vibratory machines. The intensity of vibration is controlled with a dial. Their website is at diamondpacific.com, 800-253-2954.


Happy Tumbling!

RockTumbler.com Authors



Hobart King Hobart M. King: Most of the articles on this website have been written by Hobart King. He is owner and manager of RockTumbler.com and has decades of rock tumbling experience. He has a PhD in geology and is a GIA graduate gemologist. He has also written most of the information about rocks, minerals and gems on the Geology.com website.