- The document describes the ROBO Cylinder RCP2-RA8C/RA8R rod type actuators, which have an 85mm width. - A new RA8 size has been added to the RCP2 series to expand the lineup, with a pushing force of 1714N. - The document provides details on specifications, dimensions, controller options and selection guides for determining push force and payload based on speed.

1. ROBO Cylinder® RCP2-RA8C/RA8R
Rod type
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2. 1
RA8 (85-mm wide) actuators have been
added to the ROBO Cylinder® RCP2
series, rod type, to expand the lineup.
<RCP2 rod type variations>
Features
RA2 RA3 RA4 RA6 RA8 RA10
Section view
of
the actuator
A new addition
to the series
25mm 35mm 45mm 64mm 85mm 100mm
Width
Maximum
pushing force 100N 156.8N 358N 800N 1714N 6000N
● The RA8 (pushing force: 1714 N), positioned between
the RA6 (pushing force: 800 N) and RA10 (pushing
force: 6000 N) size-wise, has been added to the series.
● The side-mounted motor type with a shorter overall
length is available.
● A desired side-mounted motor direction and cable
exit direction can be selected.
Coupling type
RCP2-RA8C Side-mounted motor type
RA8C RA8R
Specification table
RCP2-RA8R
Motor installation method Coupling Side-mounted
Motor type 60 Pulse motor
Actuator section dimensions (*1) (mm) 85×86
Stroke (mm) 50~300
Drive system 016 Ball screw 016 Ball screw
+ Timing belt
Ball screw lead (mm) 5 10 5 10
Maximum speed (mm/s) 150 300 100 200
Maximum pushing force (*2) (N) 1714 857 1714 857
Horizontal payload (*3) (kg) 100 60 100 60
Vertical payload (*3) (kg) 70 40 70 40
Positioning repeatability (mm) ±0.02
Lost motion (mm) 0.1
Rod non-rotation accuracy (deg) ±1.0
Ambient operating temperature, humidity 0 to 40⁰C, 85%RH or less (No condensation)
(*1) The motor dimensions are not included.
(*2) For the pushing force, refer to “Selection Guide (Correlation Diagrams of Pushing Force and Current Limiting Value)” on P6.
(*3) When the actuator is operated at a rated acceleration of 0.2 G (or 0.1 G if the lead is 5). The horizontal payload assumes use of an external guide. Due to the
characteristics of the pulse motor, the payload will decrease as the speed increases. For details, refer to “Correlation Diagrams of Speed and Payload” on P6.
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3. 2
Model Description
RCP2
Series Type
60P
P2
Motor type Ball screw lead Stroke Compatible controllers Cable length
Option
I
Encoder type
RA8C Actuator width: 85mm
Coupling type
RA8R Actuator width: 85mm
Side-mounted motor type
60P Pulse motor
60 size
5 5mm lead
10 10mm lead
N None
P 1m
S 3m
M 5m
X Length
designation
R Robot cable
To change the direction for cable exit, indicate an appropriate option code such as A1, A2 or A3.
(Note) The direction for connector cable exit is determined by viewing from the rear of the motor.
Take note that the directions are reversed on the coupling type and side-mounted motor type.
A1~A3 Change direction for connector
cable exit
B Brake
NM Reversed-home specification
MT1/MT2/MT3 Side-mounted motor at the top
MR1/MR2 Side-mounted motor to the right
ML1/ML3 Side-mounted motor to the left
FL Flange
FT Foot bracket
50 50mm
300 300mm
I Incremental type
(Set in steps every 50mm)
P2 PCON-CF
Standard exit direction
No option specified (blank)
Cable exiting from the left direction
Option code: A1
Cable exiting from the right derection
Option code: A3
RA8C
Cable exiting from the opposite side of
the standard direction
Option code: A2
RA8C
RA8C
RA8C
RA8R
RA8R
RA8R
RA8R
Change direction for cable exit
Side-mounted motor direction/cable exit position (for RA8R)
Note
Be sure to include the option
code indicating the side-mounted
motor direction/
cable exit position for your
model in the model number.
Option code MT1 MT2 MT3 MR1 ML1 MR2 ML3
Side-mounted motor direction Top (standard) Top Top Right Left Right Left
Cable exit position Top (standard) Right Left Top Top Right Left
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4. 3
Stroke list
Stroke (mm)
Standard price
RA8C RA8R
50 − −
100 − −
150 − −
200 − −
250 − −
300 − −
Cable list Option list
■ Controller
Title Option code Standard price
Change direction for connector cable exit A1~A3 −
Brake B −
Reversed-home specification NM −
Side-mounted motor at the top MT1/MT2/MT3 −
Side-mounted motor to the right MR1/MR2 −
Side-mounted motor to the left ML1/ML3 −
Flange FL −
Foot bracket FT −
The RCP2-RA8C/RA8R controllers are shown below. For details, refer to the ROBO Cylinder® General Catalog.
Name External view Model number Features Maximum number of
positioning points
Notes • Unlike with the PCON-C/CG/CY/PL/PO/SE controllers, the applicable encoder cable is designed exclusively for
the PCON-CF type. Exercise caution when ordering this cable separately.
• Take note that simple absolute units cannot be used.
• For the details of controllers, refer to the ROBO Cylinder® General Catalog.
Input
power
Power supply
capacity
Standard
price
Positioner
type PCON-CF-60PI-NP-2-0
Up to 512
positioning
points are
supported
512 points DC24V 6A max. −
Type Cable symbol Standard price
Standard type
P (1m) −
S (3m) −
M (5m) −
Special length
X06 (6m) ~ X10 (10m) −
X11 (11m) ~ X15 (15m) −
X16 (16m) ~ X20 (20m) −
Robot cable
R01 (1m) ~ R03 (3m) −
R04 (4m) ~ R05 (5m) −
R06 (6m) ~ R10 (10m) −
R11 (11m) ~ R15 (15m) −
R16 (16m) ~ R20 (20m) −
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5. 4
Dimensions
Note
Do not apply an external force to the rod from any direction other than the moving
direction of the rod. If a force is applied to the rod from the direction perpendicular
to the rod or rotating direction of the rod, the stopper may be damaged.
(Across flats area) (*3)
Dimensions of
foot bracket type Dimensions of brake type
D
35 (Eective thread)
5
Cable joint connector *1
Secure at least 100mm
Ø70
Ø40 (Outer diameter of rod)
4
ME
(*2)
st
(67)
st+124.5 34.5 111 (2.6)
L
15
12 (Across flats area)
40
S.E.
M20x1.5
4
M.E.
Home
67
67
86
85
(18)
4-M8, depth 16
43.5
Dimensions of flange type
4-Ø8.5, through
50
85
100
16
67
120
55
60
C-M8, depth 16
2-Ø5H7, reamed, depth 5
35 50 50 Ax100 (B)
(Reamer pitch±0.02)
st+124.5 34.5 50 111
67 st+320 (Brake)
4-Ø8.5, through
35
130
100
25
16 86 (18)
27
Stroke 50 100 150 200 250 300
L 320 370 420 470 520 570
A 0 0 1 1 2 2
B 39.5 89.5 39.5 89.5 39.5 89.5
C 6 6 8 8 10 10
D 100 100 200 200 300 300
Mass
(kg)
No brake 6.5 7.4 8.2 9.1 9.9 10.7
Brake-equipped
7.5 8.4 9.2 10.1 10.9 11.7
*1. Connect the motor/encoder cables.
*2. During home return, the rod will move all the way to the ME. Accordingly,
pay attention to prevent possible contact between the rod and
surrounding parts during home return.
ME: Mechanical End SE: Stroke End
Reference dimensions are shown in parentheses.
*3. The orientation of the bolt will vary depending on the product.
■ Dimensions by Stroke (mm)
■ RA8C
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6. 5
1
Cable joint connector *1
177 (17)
■ RA8R
4-M8, depth 16 4-M8, depth 16
(Across flats area) (*3)
27
M20x1.5
35 (Eective thread)
Home
M.E.
ME
(*2)
S.E.
(67) L
67
60
C-M8, depth 16
35 50
50 Ax100 (B)
67
67
16
4
4 st 40 st+124.5 47 67
85
208.5
Secure at least 100mm 110
20.5 30
5
15
85 12 (Across ˆats area)
100
120
25
247
111 20.5 68.5 47
35 D
176
67
(43.5)
86
16 177 (17) 130 50
85
100
67
(Reamer pitch±0.02)
55
43.5
Ø40 (Outer diameter of rod)
4-Ø8.5, through
2-Ø5H7, reamed, depth 5
4-Ø8.5, through
Ø70
Dimensions of flange type
Dimensions of foot bracket type Dimensions of brake type
st+171.5
Dimensions
*1. Connect the motor/encoder cables.
*2. During home return, the rod will move all the way to the ME. Accordingly,
pay attention to prevent possible contact between the rod and
surrounding parts during home return.
ME: Mechanical End SE: Stroke End
Reference dimensions are shown in parentheses.
*3. The orientation of the bolt will vary depending on the product.
■ Dimensions by Stroke (mm)
Stroke 50 100 150 200 250 300
L 221.5 271.5 321.5 371.5 421.5 471.5
A 0 0 1 1 2 2
B 39.5 89.5 39.5 89.5 39.5 89.5
C 6 6 8 8 10 10
D 100 100 200 200 300 300
Mass
(kg)
No brake 7.7 8.6 9.4 10.3 11.1 12
Brake-equipped
8.6 9.5 10.3 11.2 12.0 12.9
Note
Do not apply an external force to the rod from any direction other than the moving
direction of the rod. If a force is applied to the rod from the direction perpendicular
to the rod or rotating direction of the rod, the stopper may be damaged.
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7. 6
Selection Guide (Correlation Diagrams of Speed and Payload)
RA8C
RA8R
Horizontal installation Vertical installation
80
70
60
50
40
30
20
10
3 2
0
0 50 100 150 200 250 300
Speed (mm/sec)
5mm lead
10mm lead
80
70
60
50
40
30
20
15
10
0
0 50 100 150 200 250 300
Speed (mm/sec)
Payload (kg)
Payload (kg)
5mm lead
10mm lead
120
100
80
60
40
20
0
5mm lead
10mm lead
10
0 50 100 150 200 250 300
Speed (mm/sec)
Payload (kg)
120
100
80
60
40
20
0
5mm lead
10mm lead
75
12
0 50 100 150 200 250 300
Speed (mm/sec)
Payload (kg)
Selection Guide (Push Force and Current Limiting Value Correlation Diagram)
RA8C
RA8R
Notes
1. Life
2500
2000
1500
1000
500
5mm lead
1714
571
857
286
10mm lead
0
0 10 20 30 40 50 60 70 80
Current limiting values (%)
Push force (N)
*When the pushing speed is 10mm/s
Rod-type ROBO Cylinder® actuators have a service life of 5,000km, but the
RCP2-RA8C/RA8R types with a lead of 5 may have a shorter service life
depending on the payload because the applicable thrust is higher.
Check the relationship of payload and service life for your actuator on the
graph shown to the right.
2. External Force on the Rod
Do not apply an external force to the rod from any direction other than the
moving direction of the rod. If a force is applied to the rod from the direction
perpendicular to the rod or rotating direction of the rod, the stopper may be
damaged.
3. Run-out of the Rod
Note
The moving speed is fixed to 10mm/s during push-motion operation.
Take note that the graphs assume the actuator pushes the work at a
speed of 10mm/s and that the pushing force will decrease as the
speed changes.
Also note that, while the RA8C/RA8R can perform push-motion
operation at current limiting values of up to 70%, certain conditions
must be met if the current limiting value exceeds 60%.
For details, refer to the operation manual of your actuator.
Relationship of payload and service life (lead 5, used vertically)
6000
5000
4000
3000
2000
1000
Service life (km)
×
4
0
0 10 20 30 40 50 60 70
Payload (kg) 48.5kg
With the standard rod types, the run-out at the tip of the rod is not considered. If there is a noticeable run-out of the rod, use an external guide.
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