---
product_id: 81318124
title: "20lb Rock Tumbler Machine, Heavy Duty Professional Rock Polisher, Commercial Stone Polishing Kit for Adults, Large Capacity Tumbler Steel Frame, Quiet Motor, Multi Barrel Base, USA Made"
brand: "mjr tumblers"
price: "$1448.98"
currency: USD
in_stock: true
category: "Mjr Tumblers"
url: https://www.desertcart.us/products/81318124-20lb-rock-tumbler-machine-heavy-duty-professional-rock-polisher-commercial
store_origin: US
region: United States of America
---

# Quiet, fan-cooled motor 20lb heavy-duty capacity 16-gauge steel frame durability 20lb Rock Tumbler Machine, Heavy Duty Professional Rock Polisher, Commercial Stone Polishing Kit for Adults, Large Capacity Tumbler Steel Frame, Quiet Motor, Multi Barrel Base, USA Made

**Brand:** mjr tumblers
**Price:** $1448.98
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your rock game with pro-grade polish power!

## Quick Answers

- **What is this?** 20lb Rock Tumbler Machine, Heavy Duty Professional Rock Polisher, Commercial Stone Polishing Kit for Adults, Large Capacity Tumbler Steel Frame, Quiet Motor, Multi Barrel Base, USA Made by mjr tumblers
- **How much does it cost?** $1448.98 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/81318124-20lb-rock-tumbler-machine-heavy-duty-professional-rock-polisher-commercial)

## Best For

- mjr tumblers enthusiasts

## Why This Product

- Trusted mjr tumblers brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Heavy-duty steel frame with industrial-grade bearings ensures longevity.
- • **Proudly USA Made:** Veteran-owned brand with 20+ years of trusted quality and performance.
- • **Powerhouse Polishing:** Commercial-grade motor built for nonstop, professional results.
- • **Customizable Workflow:** Multi-barrel base supports various sizes for ultimate versatility.
- • **Whisper-Quiet Operation:** Fan-cooled, thermally protected motor runs smoothly without noise disruption.

## Overview

The MJR Tumblers 20lb Rock Tumbler Machine is a heavy-duty, professional-grade rock polisher featuring a powerful, quiet motor and a durable 16-gauge steel frame. Designed for serious hobbyists and professionals, it supports multiple barrel sizes for flexible polishing needs. Made in the USA by a veteran-owned company with over 20 years of expertise, this tumbler delivers consistent, high-quality stone finishing with industrial-grade components built to last.

## Description

Buy MJR Tumblers 20lb Rock Tumbler Machine, Heavy Duty Professional Rock Polisher, Commercial Stone Polishing Kit for Adults, Large Capacity Tumbler Steel Frame, Quiet Motor, Multi Barrel Base, USA Made: Rock Tumblers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- COMMERCIAL GRADE POWER & PERFORMANCE: Built for serious rock polishing, this 20lb capacity rock tumbler delivers professional-level results with a powerful motor designed for continuous operation. Ideal for hobbyists and advanced users looking for a reliable, high-performance rock polishing machine.
- VERSATILE DESIGN FOR MULTIPLE BARREL SETUPS: Engineered to support multiple barrel sizes and combinations, this tumbler base offers unmatched flexibility for different polishing needs. Whether you're working with small batches or larger loads, it adapts to your workflow with ease (additional barrels sold separately).
- HEAVY DUTY STEEL FRAME & PREMIUM COMPONENTS: Constructed with a 16-gauge welded steel frame and powder-coated finish for durability and corrosion resistance. Features industrial-grade stainless steel ball bearings and rubber-coated rollers no plastic bushings ensuring long-lasting, smooth operation.
- EFFICIENT MOTOR WITH OPTIMAL SPEED CONTROL: Equipped with a fan-cooled, thermally protected motor that runs at the ideal speed for faster, consistent polishing results. Designed for extended use while maintaining stable, efficient performance for rock tumbling and stone finishing.
- TRUSTED USA-OWNED BRAND WITH PROVEN QUALITY: Proudly offered by a USA-based, veteran-owned company with over 20 years of experience. Designed for durability, performance, and versatility, making it a top choice among rock tumblers for adults, hobbyists, and professionals alike.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FZG41ZJ |
| Age Range Description | Adult, Kid |
| Best Sellers Rank | #203,258 in Toys & Games ( See Top 100 in Toys & Games ) #43 in Kids' Rock Tumblers |
| Brand | MJR Tumblers |
| Brand Name | MJR Tumblers |
| Capacity | 1.25 gallons |
| Color | Yellow |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.2 out of 5 stars 119 Reviews |
| Finish Types | Glossy |
| Included Components | Lid |
| Item Weight | 35 pounds |
| Manufacturer | MJR Tumblers |
| Manufacturer Part Number | MJR20p |
| Material | Metal |
| Material Features | Insulated |
| Material Type | Metal |
| Number of Items | 1 |
| Other Special Features of the Product | Heavy Duty |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Product Style | Modern |
| Recommended Uses For Product | Home |
| Reusability | Reusable |
| Shape | Tumblers |
| Size | 20 Pound |
| Special Feature | Heavy Duty |
| Specific Uses For Product | Rock Tumbling |
| Style | Modern |
| Subject Character | ****Additional Barrels in videos SOLD SEPARATELY**** |
| Theme | Rock,Rocks |
| Unit Count | 1 Count |

## Product Details

- **Brand:** MJR Tumblers
- **Capacity:** 1.25 Gallons
- **Color:** Yellow
- **Material:** Metal
- **Special Feature:** Heavy Duty

## Images

![20lb Rock Tumbler Machine, Heavy Duty Professional Rock Polisher, Commercial Stone Polishing Kit for Adults, Large Capacity Tumbler Steel Frame, Quiet Motor, Multi Barrel Base, USA Made - Image 1](https://m.media-amazon.com/images/I/5184JqQjjyL.jpg)
![20lb Rock Tumbler Machine, Heavy Duty Professional Rock Polisher, Commercial Stone Polishing Kit for Adults, Large Capacity Tumbler Steel Frame, Quiet Motor, Multi Barrel Base, USA Made - Image 2](https://m.media-amazon.com/images/I/71wYBO9K+HL.jpg)
![20lb Rock Tumbler Machine, Heavy Duty Professional Rock Polisher, Commercial Stone Polishing Kit for Adults, Large Capacity Tumbler Steel Frame, Quiet Motor, Multi Barrel Base, USA Made - Image 3](https://m.media-amazon.com/images/I/61K4Iy8sPVL.jpg)
![20lb Rock Tumbler Machine, Heavy Duty Professional Rock Polisher, Commercial Stone Polishing Kit for Adults, Large Capacity Tumbler Steel Frame, Quiet Motor, Multi Barrel Base, USA Made - Image 4](https://m.media-amazon.com/images/I/611g8qB+vML.jpg)
![20lb Rock Tumbler Machine, Heavy Duty Professional Rock Polisher, Commercial Stone Polishing Kit for Adults, Large Capacity Tumbler Steel Frame, Quiet Motor, Multi Barrel Base, USA Made - Image 5](https://m.media-amazon.com/images/I/61c7RST-NuL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: What voltage does the motor require?**
A: Plug into regular outlets

**Q: can you run other containers with a 15# container?  or can you switch out to different size containers?**
A: You can use various different sizes or weight containers..I used a larger one and Iran just fine..only draw back is the length is to short and it shifts from side to side wearing down the the plastic ends..it has plenty of power

**Q: What are the outside barrel dimensions? How far are the rollers apart?**
A: I believe it is 6” pipe with a cap and a reducer

**Q: Does it have a timer for auto shutoff?**
A: No it does not

## Frequently Bought Together

- MJR Tumblers Commercial Duty 20lb Rock Tumbler. Capable of Running 18 Different Barrel Sizes & Combinations. Unmatched Quality, Durability & Versatility. MJR is a USA Disabled & Veteran Owned Company.
- Blue Marble National Geographic Rock Tumbler Grit and Polish Refill Kit - Tumbling Grit Media, Polish Up to 20 lbs. of Rocks, Works with Any Rock Polisher, Rock Tumbler Supplies
- Hiceeden 8 Pounds Rock Tumbling Filler Media, 1/5" x 2/5" Reusable Cylinder Ceramic Pellets Non-Abrasive for Rock Tumbler, Stone Polisher

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-10-10*