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Rock Tumblers - Large Base - 18 Combinations!

Rock Tumblers - Large Base - 18 Combinations!

Best price now

$430.00at MJR TUMBLERSChecked Nov 8

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Price facts

  • Last seen at $430.00 at MJR TUMBLERS on Nov 8.
  • Our take on the Rock Tumblers - Large Base - 18 Combinations!

    The MJR Large Base is a rotary rock tumbler built on a 21-inch, 16-gauge welded steel frame with a powder-coated finish and rubber-coated steel rollers. It runs a commercial-grade polymer barrel with internal fins and a tapered neck, driven by a heavy-duty motor with automatic thermal overload protection for continuous use. It suits hobbyists and small shops that want a durable, long-running tumbler and a two-year warranty rather than a plastic toy unit. Against budget tumblers it trades portability for sturdier construction and a sealed barrel.

    Best forHobbyists tumbling batches for days at a timeSmall lapidary or jewelry workshopsBuyers who want a steel-framed, repairable machineGift for a serious rock collector
    Pros
    • 16-gauge welded steel frame with powder coating
    • Rubber-coated rollers reduce barrel slip and noise
    • Motor rated for continuous use with thermal overload protection
    • Water- and air-tight barrel with internal fins
    • Two-year warranty on materials and craftsmanship
    Cons
    • Large 21-inch base takes up bench or floor space
    • Single barrel per unit, so no multi-barrel tumbling
    • Heavy steel frame makes it hard to move
    • No speed control mentioned

    Rock Tumblers - Large Base - 18 Combinations! prices at every store

    • MJR TUMBLERSNew

      In stockReturn policy

      $430.00Checked Nov 8
      Visit MJR TUMBLERS

    About the Rock Tumblers - Large Base - 18 Combinations!

    This rock tumbler has a base unit and a tumbling barrel. The base has a heavy duty 16 gauge welded steel frame with a powder coat finish that resists scratches and corrosion. Rubber coated steel rollers turn the barrel.

    The barrel is commercial grade polymer and seals water and air tight. Fins inside keep the contents revolving. A tapered neck makes loading and unloading easier, and a heavy duty rubber cap closes it.

    The heavy duty motor has automatic temperature overload protection and is intended for continuous use. A 6 foot, 18 gauge power cord is attached.

    Base size
    Large base, 21 inches
    Frame
    16 gauge welded steel, powder coated
    Rollers
    Rubber coated steel
    Barrel
    Commercial grade polymer, water and air tight seal, internal fins, tapered neck
    Cap
    Heavy duty rubber
    Motor
    Heavy duty, automatic temperature overload protection, intended for continuous use
    Power cord
    6 foot, 18 gauge
    In the box
    1 base unit, 1 tumbling barrel, instruction manual for care and usage, polishing/tumbling instructions for multiple applications
    Warranty
    Two years, covering defects in materials and craftsmanship

    Questions and answers

    What comes in the box?
    One base unit, one tumbling barrel, a care and usage manual, and polishing and tumbling instructions for several applications. Grit and rocks are not included.
    Can it run overnight or for days?
    The motor has automatic temperature overload protection and is intended for continuous use, which suits the multi-day stages of tumbling.
    How does the Large Base differ from the Medium Base?
    The frame is 21 inches long versus 14 inches on the Medium Base. Both use the same barrel design and motor features.
    Does the barrel leak?
    The commercial-grade polymer barrel is described as sealing water- and air-tight, with a heavy-duty rubber cap and a tapered neck for loading.
    Is it loud?
    Rubber-coated rollers and a sealed polymer barrel help, but rotary tumblers with steel frames still produce steady running noise; place it on a solid surface away from living areas.
    What is the warranty?
    Two years covering defects in materials and craftsmanship from MJR, a US company that has made tumblers for over 20 years.
    Where is the Rock Tumblers - Large Base - 18 Combinations! cheapest?
    At MJR TUMBLERS, for $430.00, as of our latest check.

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