Roundtest - 4 / 10 Pages

An inspection certificate is supplied as standard.
Refer to page IX for details.

Roundtest RA-2200
• Highly accurate and easy-to-use turntable
The rotational accuracy in the radial direction
is better than 0.02+3.5H/10000μm, and in
the axial direction 0.02+3.5X/10000μm is
achieved. High accuracy measurement of not
only roundness or cylindricity but also flatness
is assured. A turntable with an automatic
centering and leveling function is adopted
for RA-2200AS/AH as a standard feature,
which frees operators from manual centering
and leveling operations. Furthermore, for the
RA-2200DS/DH models, a guidance system
is incorporated as a standard feature help
untrained operators perform centering and
leveling simply and smoothly.
• Greater productivity achieved by continuous
inside/outside diameter measurement
Both the ID and OD of a workpiece*1 can be
traced in succession without changing the
detector traverse direction. *1: Up to ID ø50mm.
• Sliding detector holder is equipped as standard
A sliding mechanism is incorporated in
the detector holder. It enables one-touch
measurement of a workpiece with a
deep hole having a thick wall, which has
been difficult with the standard detector.
To perform measurement, the contact
point can be positioned higher than the
workpiece, and then
the detector holder
is simply lowered.
Furthermore, internal/
outside diameters can
be easily measured with
the continuous ID/OD
measurement function.
• Positioning sensor equipped to enable
high accuracy repetitive measurement
A Mitutoyo linear scale is used in the X-axis
drive unit to directly detect the position of
the drive unit. It guarantees the highly precise
positioning vital for repetitive measurement.
• Safety mechanism provided as a standard feature
A collision-sensing function is equipped in
the detector unit (when it is in the vertical
orientation) to prevent a damaging collision
in the Z direction. Additionally, an overrun
prevention function is equipped, which stops
the system when the detector displacement
exceeds its range.

Refer to the Roundtest RA-2200 series
(Catalog No.E4385) for more details.

SERIES 211 — Roundness/Cylindricity Measuring System

RA-2200 AS

System vibration isolator (monitor arm type)*
* Printer table (provided by the customer)
not shown.

RA-2200 AS

System vibration isolator (with side table)

SPECIFICATIONS
Model No.

RA-2200AS

RA-2200DS

RA-2200AH

RA-2200DH

(0.02+3.5H/10000)μm H: Probing height (mm)
Rotational accuracy Radial direction
(JIS B 7451-1997)
Axial direction (0.02+3.5X/10000)μm X: distance from the center of rotation (mm)
Rotational speed
2, 4, 6, 10 rpm
Effective diameter of the table
ø 235mm
ø 200mm
ø 235mm
ø 200mm
Centering/leveling mechanism
A.A.T
D.A.T
A.A.T
D.A.T
Turntable
Centering adjustment range
±3mm
±5mm
±3mm
±5mm
Leveling adjustment range
±1°
Maximum loading mass
30kg
Maximum probing diameter
ø 300mm
Maximum loading diameter
ø 580mm
0.10μm/100mm
0.10μm/100mm
Straightness of traverse (λc2.5)
0.15μm/300mm
0.25μm/500mm
Parallelism to the rotation axis (with
0.7μm/30a0mm
1.2μm/500mm
respect to the generating line)
Moving speed
Maximum: 50mm/s (at measurement: 0.5,1.0, 2.0, 5.0 mm/s)
Vertical movement
At OD
300mm
500mm
(Z-axis column unit) Maximum probing measurement
height
At ID
300mm
500mm
measurement
Maximum probing depth (when using
ø 32×85mm (depth), ø7×50mm (depth)
a standard stylus)
Straightness (λc2.5)
0.7μm/150mm
Perpendicularity to the rotation axis
1.0μm/150mm
(with respect to the generating line)
X axis
Travel range
175mm (–25mm to +150mm from the rotation center)
Drive speed
Maximum: 30mm/s (at measurement: 0.5, 1.0, 2.0, 5.0 mm/s)
Measuring force
Approx. 10 to 50mN, 1 to 5 steps
Stylus tip form, material
ø1.6mm Carbide
Standard
±400μm/±40μm/±4μm
Detection range
Detector
Tracking
±5mm
In/out switching feature, Measuring force switching feature (5-step),
Others
Stylus angle graduations (±45°), Z direction collision detection
function, sliding detector holder (3 positionings)
Power supply
100-240VAC
Required air pressure
0.39MPa
Others
Air consumption (in normal state)
30L/min in normal state (80L/min or more as air source)
Main unit weight
180kg
200kg
*1: Auxiliary stage for a low-height workpiece is required for the measurement 20mm or less from the table top.

Mitutoyo operates a policy of continuous improvement that aims to provide the customer with the benefit of the latest technological advances.
Therefore the company reserves the right to change any or all aspects of any product specification without notice.

L-36

L

Roundtest
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    An inspection certificate is supplied as standard.Refer to page IX for details.• Highly accurate and easy-to-use turntableThe rotational accuracy...
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  8. P. 8

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