OPERATING MANUAL
ROTO-TORQUE®HEAVY DUTY ROTATORS
MODEL NOS. 07637-00 AND 07637-10
Cole-Parmer Instrument Company
625 East Bunker Court
Vernon Hills, Illinois U.S.A. 60061-1844
(847) 549-7600
(847) 247-2929 (Fax)
800-323-4340
www.coleparmer.com
e-mail: techinfo@coleparmer.com
A-1299-0029
Edition 09
DESCRIPTION
The COLE-PARMER ROTO-TORQUE Rotator consists of two units; the rotator assembly and the
Multipurpose disc. The rotator assembly is available in two models, wired for 115V AC 50/60 Hz (No.
07637-00) or 230V AC 50/60 Hz (No. 07637-10) input power. The rotator assembly contains a motor ,
speed control circuit, housing, base bracket and the rotor shaft adapter. The Multipurpose disc (No.
07637-01) includes small clips, large clips and mounting hardware.
The ROTO-TORQUE Rotator combines functional features with its attractive packaging. It can be
used for very low to moderate agitation. It has a stepless electronic speed control which can vary
the speed from about 3 to 80 rpm. Even with heavier loads on and around the rotating disc, the disc
will have a smooth rotation without cogging. The unit has an adjustable tilt housing that can be set
by an operator to the correct angle desired for a particular test.
The Multipurpose disc can accept different sizes of clips. They can hold test tubes, flasks and bottles. Clips around the periphery of the disc are placed at an angle. Any test tube placed in this clip
will move through a figure 8 motion causing a sloshing effect and mixing of its contents.
The unit is designed such that in most cases (when the disc is not heavily loaded), the center of
gravity of the system will act to tilt the disc upward. This safety device is provided in case the side
knob is left loose by mistake.
Trademarks bearing the ® symbol in this publication
are registered in the U.S. and in other countries.
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ASSEMBLY AND GENERAL INFORMATION
Install the housing assembly on the base bracket using the top two slots in the sides of the base
bracket. It may be necessary to pull the sides of the base bracket outward for this installation.
Place the fiber washer and two curved washers on the threaded shaft (side-axle) as shown in the
sketch. Use the side knob on the threaded shaft (axle) (it is the largest of the two knobs). Determine
the required tilt of the housing and tighten the side knob. The tilt angle of the housing can be
changed by loosening the side knob.
Slide the rotor shaft adapter onto the motor shaft. Tighten the set screws using the Allen wrench supplied with the unit. Line up the roll pin of the shaft adapter with the corresponding hole in the disc.
Attach the disc by tightening the adapter knob.
Two sizes of clips are supplied with the disc. They can grip diameters of 10 to 20 mm. The clamping diameters can be varied somewhat by slightly bending the clips. An extra large clip (20-25 mm)
and giant (25-40 mm) clip is also available as an accessory.
The clips can be attached on the periphery or the flat surface of the disc. Thirty mounting holes on
the periphery and sixteen holes on the front of the disc are provided for mounting the clips.
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BRACKET
CABINET
HOUSING
CURVED WASHERS
THREADED
SHAFT
FIBER
WASHER