SPEX SamplePrep 8000M Mixer/Mill "The Spex Mill"
SPEX SamplePrep 8000M Mixer/Mill "The
Description: SPEX SamplePrep 8000M Mixer/Mill "The Spex Mill"
8000M Mixer/Mill® High-Energy Ball Mill, Shaker Mill
Operating Manual Included
Includes Stainless Steel Vial, P/N: 8007
Vial size 2 1/4 in. diameter x 3 in. Vial body and cap
liner made of hardened 440C stainless steel.
Vial includes screw-on cap with O-ring to permit wet or
dry grinding/mixing. Grinding load 3-10 ml;
mixing load approx. 25 ml.
The SPEX SamplePrep 8000-series Mixer/Mills are efficient, compact
laboratory mills capable of pulverizing samples in the 10-gram range.
Functionally described as shaker mills or high-energy ball mills, these
Mixer/Mills shake containers back and forth approximately 1080 cycles
per minute (60 Hz model). These multi-purpose mills are capable of
reducing hard, brittle samples to analytical fineness, blending
powders, making emulsions, and performing mechanical alloying.
The vial, which contains a sample and one or more balls, is shaken in a
complex motion that combines back-and-forth swings with short lateral
movements, each end of the vial describing a figure-8. The length of
that swing is the same as the internal length of a standard 8000 series
vial, about two inches. With each swing the balls impact against one
end of the vial, simultaneously milling the sample to a powder and
blending it. Because of the amplitude and velocity of the clamp’s
swing, each ball develops fairly high G-forces, enough to pulverize the
toughest rocks, slags and ceramics.
The single-clamp 8000M Mixer/Mill, known simply as “the Spex Mill” to
thousands of users, has served spectroscopists and analytical chemists
for over forty years. The clamp mechanism has changed little since the
earliest versions, simply because it has proven extremely durable. Many
of the earliest 8000 Mixer/Mills are still in service. An electronic
100-minute timer has replaced the original wind-up timer and the mill’s
safety features have been improved: the lid is now locked down until
the clamp stops moving.
8000-series Mixer/Mills have been used for pulverizing rocks, minerals,
sand, cement, slag, ceramics, catalyst supports, and hundreds of other
brittle, often hard samples. Early in its market introduction, the 8000
was used to grind samples, then blend them with graphite for arc/spark
spectroscopy; now similar samples are ground, then blended with binder
before being pressed into sample discs for XRF. The vigorous motion of
the clamp is also excellent for making emulsions, such as paints, inks
and pharmaceuticals. 8000M Mixer/Mills have also achieved notoriety for
their ability to mechanically alloy small quantities of materials in
fields such as superconductor research.
Type of mill:
High-Energy Shaker Mill
Grinding Containers: Canister
type vial with one or more balls
Weight (empty, without vial): 70 lbs. (31 kg)
in (48 cm) x 14 in (36 cm) x 18 in (46 cm)
Electrical specifications: 115V/60Hz
115V/60HZ version, two 10 Amp slow-blow fuses in the
power input module
1/3 Hp, 1725 RPM (115V)
Works with the following Vials
8001 Hardened Steel Vial Set.
3111 Polystyrene Vial with Cap
8003 Alumina Ceramic Vial Set
3116 Polystyrene Vial with Cap
8004 Tungsten Carbide Vial Set
6133 Polystyrene Vial with Cap
8005 Zirconia Ceramic Vial Set
6133PC Polycarbonate Vial with Cap
8006 Methacrylate Vial Set
6134 Polystyrene Vial with Cap
8007 Stainless Steel Vial Set
6135 Polystyrene Vial with Cap
8008 Silicon Nitride Vial Set
8002 Polystyrene Vial with Cap
8009 Round-Ended Hardened Steel Vial Set
8006 Methacrylate Vial Set
8014 Agate Vial Set
3114 Stainless Steel Vial Set
3117 Hardened Tool Steel Vial Set
3127 Hardened Tool Steel Vial Set
3118 Agate Vial Set
5004 Tungsten Carbide Lined Vial Set
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