 ROTO-MAX
CENTRIFUGAL DISC FINISHER
High Energy Centrifugal Disc Upflow Finishing System
15 times faster for deburring and surface finishing of parts than the best vibratory
finisher... our own.
A Technology Whose Time Is Now
The technical and chemical engineers from Roto-Finish have perfected the centrifugal
disc technology and have produced a parts finishing system that is second to none in the
world. A bold statement -- we'll back it up with one of the best warranties in the
business. Let us prove it to you!
What Is It?
Simply stated, ROTO-MAX is a high speed finishing system for deburring, surface
improvement, descaling and finishing parts made of metal, rubber or plastic. It's a
finishing machine designed to machine tool specifications. ROTO-MAX machines reduce
vibratory process cycles for deburring hard metals, rough forgings and castings to the
finishing of jewelry, hardware, and medical implants.
How the Upflow Process Works Centrifugal disc
technology involves a machine consisting of a motor-driven,
saucer-shaped rotor mounted inside and near the base of a large processing chamber. Both
the rotor and the stationary lower ring are coated with high-impact resistant molded
polyurethane for extended life.
Parts, media and compound are loaded into the processing chamber, and the high speed
disc rotation creates the centrifugal force that moves the media and parts up the
stationary side wall. When the mass reaches the apex, the force of gravity pulls the
material back to the disc. The process repeats.
The doughnut-shaped path of the mass produces a highly efficient process that is up
to 15 times faster than our own superior vibratory finishing process.
ROTO-MAX Unique Features
Water In/Out Seal and Drain
The small open space between the rotor and the power ring is the seal. The ROTO-MAX
patented seal design uses pressurized solution and processing compound which is
introduced through the lower ring just below the seal. The solution is forced up through
the seal to keep the seal area lubricated and free of small abrasive particles, which
greatly increases the seal life.
Solution in the lower chamber stabilizes the rotor, thus maintaining its symmetrical
alignment during rotation, a process known as hydrostatic balancing. The constant
cooling effect of the water on the urethane prevents expansion and premature seal failure.
Water, compound and contaminates are continuously drained through the side wall
drains in the processing chamber. Upon the cycle completion, the ROTO-MAX allows the
abrasive particles to drain down through the patented hollow-core drive shaft in the
center of the processing chamber. This unique draining agility prevents material form
entering the seal and thus increases the seal life.
Of special note: The ROTO-MAX design is a more forgiving design in the area of
rotor-seal engineering. With all older designs, other than the ROTO-MAX, a hand-held
hose must be used to rinse the rotor, seal and processing chamber area. However, in the
patented ROTO-MAX equipment, this is done by the fully programmable automatic design.
Note: On the ROTO-MAX dry finishing units, an upflow of compressed air (used in place
of solution) is forced up through the lower seal preventing media, parts or other
abrasive material form accumulating in the seal area. The dry ROTO-MAX is used to
achieve high-luster finishes.
Sequence of Operation
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The Automatic ROTO-MAX
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Power
Separation Semi-Automatic ROTO-MAX
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ROTO-MAX RM-1P
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Dry ROTO-MAX
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For the ROTO-MAX automatic processing system, the sequence of operation is:
- Parts and preselected media are placed into the loading hopper.
- On command, the hopper is elevated and transfers its contents into the processing
chamber, and a rinse bar flushes the hopper with water.
- The controlled start-up speed of the motor begins the rotation of the roter. Water
and chemical compound are metered into the processing chamber through the seal. There is
continuous draining through the side drains.
- Following the timed controlled cycle, the unit shuts down and the solution is
drained through the patented hollow-core drive shaft, then the processing chamber pivots
automatically to empty its contents of parts and media. This unloading process is
precisely controlled and the inverted processing chamber is rinsed with water before
returning to its operating position.
- Contents are emptied onto a multi-level vibrating screening system. The top
separating screen, with openings sized to retain the parts, shakes the media through and
transports the finished part to the front of the machine. The lower screen accepts the
separated media and classifies the media as it is transported to the back of the machine
and into the waiting loading hopper.
A ROTO-MAX Size for You
- ROTO-MAX units are available in 2, 3 and 6 cubic-foot models.
- The ROTO-MAX is available either as a fully automatic batch finishing system or as a
semi-automatic system.
- ROTO-MAX dry finishing systems also are available in 2, 3 and 6 cubic-foot models.
Specifications
Machine Model |
Process Capacity Cu. Ft. |
Length |
Width |
Height |
Process Bowl Height |
Process Bowl Diameter |
Motor Horse Power |
460V Amp. Load |
230V Amp. Load |
Approx. Shipping Weight |
RM-1 |
.75 |
50 |
41 |
61 |
46.0 |
19.0 |
3 |
6 |
12 |
1,000 |
RM-1P |
.75 |
97.5 |
41.5 |
60.25 |
46.0 |
19.0 |
3 |
7 |
14 |
1,875 |
RM-2 N/P |
2 |
58 |
54 |
64 |
59.5 |
25.5 |
5 |
8.6 |
16.2 |
2,900 |
RM-2A |
2 |
87.5 |
55 |
108 |
60.0 |
25.5 |
5 |
8.6 |
16.2 |
5,900 |
RM-3 N/P |
3 |
58 |
54 |
64 |
63.5 |
25.5 |
7.5 |
14.0 |
25.0 |
3,100 |
RM-3A |
3 |
87.5 |
55 |
108 |
72.0 |
25.5 |
7.5 |
14.0 |
25.0 |
6,100 |
RM-6 N/P |
6 |
66 |
71 |
82 |
76.5 |
37.5 |
10 |
17.0 |
31.0 |
4,000 |
RM-6A |
6 |
100 |
76 |
129 |
81.0 |
37.5 |
10 |
17.0 |
31.0 |
8,600 |
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Continuous improvement of products is a standard policy. All specifications
and designs are subject to change without notice or obligation. Prices are also subject to
change and do not include taxes and freight where applicable.
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