MJR Tumblers' 30 lb Capacity Rock Tumbler & Grit Kit with Polishing Instructions

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Preparation takes 1-3 business days
Arrives from the United States


Item details

MJR Tumblers' Model 30P Tumbler

30 Pound Capacity, 2 Gallon Rotary Commercial Duty Tumbler

Comes with Grit Kit to Polish 30 Pounds of Stones

Included in this Auction:

One Large Base Unit
One 30 Pound Capacity Barrel
Grit Kit to Polish 30 Pounds of Stones
30 ounces stage 1 60/90 coarse silicon carbide
30 ounces stage 2 120/220 medium/fine silicon carbide
15 ounces stage 3 500/600 pre-polish silicon carbide
15 ounces stage 4 1200 polish aluminum oxide
30 ounces plastic pellets
We use a Green/Black Silicon Carbide blend for our first stage. Green Silicon Carbide works faster than Black Silicon Carbide because it is harder and stays sharp longer.
Instruction Manual for care and usage
Polishing/Tumbling Instructions for multiple applications
Two Year Warranty on parts and labor to cover defects in materials and craftsmanship

MJR Tumblers:

Reliable US company producing highest quality products for over 20 years
All MJR Tumblers come with a TWO YEAR WARRANTY to cover defects in materials and craftsmanship
Offers the most versatile tumblers on the market today
Very competitively priced - compare to Covington or Diamond Pacific - our prices are hundreds of dollars below our competitors for comparable size and quality

Item Description:

Heavy duty 16 gauge welded steel frame, powder coated to be scratch and corrosion resistant
Rubber coated 1/2" diameter steel rollers
Industrial duty flanged STAINLESS STEEL BALL BEARINGS (no plastic sleeve bearings to wear out)
Heavy duty motor with automatic thermo overload protection - intended for continuous use
Driven by heavy duty 2L-V belt
Commercial grade plastic barrel that seals to be water and air tight, tapered neck for easy loading and unloading
Quick and easy to use heavy duty rubber cap
Lifter bars inside the barrel for optimum efficiency and performance - keeps contents revolving
6 foot, 18 gauge power cord


Rock Tumbling
Brass Cleaning
Antique Bottle Cleaning
Beach Sea Glass Production
Ball Milling

MJR Tumblers offers the following tumbler sizes:

6 lb Capacity
10 lb Capacity
12 lb Capacity (Single 12 lb barrel or two 6 lb barrels)
15 lb Capacity
18 lb Capacity (Three 6 lb barrels)
20 lb Capacity (Two 10 lb barrels)
25 lb Capacity
30 lb Capacity
40 lb Capacity

A full line of tumbling media and pre-made kits are available from MJR Tumblers for any size and brand tumbler.

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Preparation takes 1-3 business days
Arrives from the United States
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