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Configure a Thruster

The Two Shaft Linear Thrusters offer a compact design while offering maximum design flexibility. They feature two precision guide shafts that provide non-rotational linear guidance and high load capacity. Replaceable linear ball bearings are standard and provide long life, high load capacity and low-friction service. Optional composite bushings and chrome plated stainless steel guide shafts provide a solution for more challenging environments. Special Modifications available upon request.

The black anodized precision machined housings are designed for replaceable stainless steel or aluminum body nose mounted cylinders. Cylinder options range from magnetic pistons to dry service. Other options include position sensing, counterbored or tapped short or long tooling plates, auxiliary mounting plates, and external bumpers or hydraulic shock absorbers.

AdditionalBenefits

  • Non-rotational precision linear motion.
  • Compact flexible design with multiple bore size offering per unit.
  • High repeatability allows for dependable positioning.
  • Multiple mounting configurations accommodate most mounting needs.
  • Replaceable cylinder, bearings and guide shafts help prolong unit life.
  • Easily maintained and serviced for long life.

 

two_shaft_dimensions

Dimensions Table

All dimensions are inches.
MODEL OA 1A 1B 2A 2B 2C 3A 3B 4A 4B 6A 6B 5A 5B MODEL
BORE 0.56 0.56 0.75 0.75 1.06 1.25 1.50 1.75 2.00 2.50 2.50 3.00 3.00 4.00 BORE
A 3.50 4.50 4.50 6.25 6.25 6.25 7.50 7.50 @9.50 @9.50 12.50 12.50 15.00 15.00 A
B 2.50 3.00 3.00 4.25 4.25 4.25 5.50 5.50 7.00 7.00 8.50 8.50 11.00 11.00 B
C 1.25 1.50 1.50 2.12 2.12 2.12 2.75 2.75 3.50 3.50 4.25 4.25 5.50 5.50 C
D 0.22 0.25 0.25 0.38 0.38 0.38 0.44 0.44 0.56 0.56 0.63 0.63 0.81 0.81 D
E 1.00 1.25 1.25 2.00 2.00 2.00 2.50 2.50 4.00 4.00 4.50 4.50 6.00 6.00 E
F 0.31 0.38 0.38 0.50 0.50 0.50 0.59 0.59 1.22 1.22 1.25 1.25 1.41 1.41 F
G 0.38 0.50 0.50 1.00 1.00 1.00 1.31 1.31 1.56 1.56 2.00 2.00 3.19 3.19 G
H 1.750 2.125 2.125 3.125 3.125 3.125 4.000 4.000 5.000 5.000 6.250 6.250 8.000 8.000 H
J 0.38 0.44 0.44 0.56 0.56 0.56 0.75 0.75 1.00 1.00 1.13 1.13 1.50 1.50 J
K 3.00 3.75 3.75 5.25 5.25 5.25 6.50 6.50 8.25 8.25 10.50 10.50 13.00 13.00 K
L 3.50 4.12 4.12 4.75 4.75 4.75 6.25 6.25 7.00 7.00 9.50 9.50 11.50 11.50 L
M 0.12 0.16 0.16 0.31 0.31 0.31 0.38 0.38 0.94 0.94 0.94 0.94 1.00 1.00 M
N 0.75 0.94 0.94 1.38 1.38 1.38 1.75 1.75 2.12 2.12 2.63 2.63 4.00 4.00 N
P 0.50 0.62 0.62 1.00 1.00 1.00 1.25 1.25 2.00 2.00 2.25 2.25 3.00 3.00 P
Q 0.25 0.38 0.38 0.50 0.50 0.50 0.50 0.50 0.63 0.63 1.00 1.00 1.00 1.00 Q
R 0.62 0.88 0.88 1.12 1.12 1.12 1.31 1.31 1.50 1.50 1.75 1.75 2.06 2.06 R
S 0.250 0.375 0.375 0.500 0.500 0.500 0.625 0.625 0.750 0.750 1.000 1.000 1.250 1.250 S
T 0.28 0.34 0.34 0.41 0.41 0.41 0.44 0.44 0.50 0.50 0.50 0.50 0.50 0.50 T
U1# 0.67 1.08 0.51 1.00 0.85 0.00 1.44 0.49 0.95 0.95 2.92 2.24 4.25 2.88 U1#
U2# 0.42 0.83 0.20 0.69 0.57 0.20 1.19 0.75 0.67 0.48 2.92 2.24 4.25 2.37 U2#
V 2.25 2.50 2.50 3.00 3.00 3.00 4.00 4.00 4.00 4.00 6.00 6.00 7.00 7.00 V
W 1.25 0.78 0.78 0.81 0.81 0.81 1.12 1.12 0.94 0.94 1.69 1.69 1.50 1.50 W
X 0.25 0.38 0.38 0.38 0.38 0.38 0.50 0.50 0.75 0.75 0.75 0.75 1.00 1.00 X
Y 0.31 0.38 0.38 0.50 0.50 0.50 0.75 0.75 1.00 1.00 1.25 1.25 1.50 1.50 Y
Z 0.86 0.85 0.85 1.00 1.00 1.44 1.50 1.63 1.60 1.60 1.48 1.85 1.50 2.06 Z
AA 0.75 0.94 0.94 1.62 1.62 1.62 2.12 2.12 3.00 3.00 3.50 3.50 4.63 4.63 AA
BB 8-32 10-32 10-32 1/4-20 1/4-20 1/4-20 5/16-18 5/16-18 3/8-16 3/8-16 3/8-16 3/8-16 1/2-13 1/2-13 BB
CC 0.62 0.62 0.81 0.81 1.12 1.34 1.56 1.84 2.08 2.62 2.62 3.16 3.25 4.38 CC
DD 4-40 6-32 6-32 8-32 8-32 8-32 10-32 10-32 1/4-28 1/4-28 1/4-28 1/4-28 1/4-28 1/4-28 DD
EE 10-32 10-32 1/8 NPT 1/8 NPT 1/8 NPT 1/8 NPT 1/8 NPT 1/4 NPT 1/4 NPT 1/4 NPT 1/4 NPT 3/8 NPT 3/8 NPT 1/2 NPT EE
FF 0.69 0.94 0.94 1.12 1.12 1.12 1.12 1.12 1.25 1.25 1.25 1.25 %1.25 %1.25 FF
GG 1.00 1.25 1.25 1.88 1.88 1.88 2.38 2.38 3.25 3.25 4.10 4.10 5.25 5.25 GG
HH 7/16-20 7/16-20 5/8-18 5/8-18 5/8-18 3/4-16 3/4-16 1-14 1 1/4-12 1 3/8-12 1 3/8-12 1 1/2-12 1 3/8-12 1 3/4-12 HH
JJ #8 #10 #10 1/4 1/4 1/4 5/16 5/16 3/8 3/8 3/8 3/8 1/2 1/2 JJ
KK 10-32 10-32 1/4-28 1/4-28 5/16-24 7/16-20 7/16-20 1/2-20 *1/2-20 *1/2-20 *1/2-20 5/8-18 3/4-16 1-14 KK
LL 0.28 0.34 0.34 0.41 0.41 0.41 0.50 0.50 0.63 0.63 0.63 0.63 0.81 0.81 LL
MM 0.188 0.188 0.250 0.250 0.312 0.437 0.437 0.500 0.625 0.625 0.625 0.750 0.750 1.000 MM
NN 0.17 0.20 0.20 0.26 0.26 0.26 0.34 0.34 0.41 0.41 0.41 0.41 0.53 0.53 NN
PP 0.17 0.20 0.20 0.25 0.25 0.25 0.34 0.34 0.41 0.41 0.41 0.41 0.53 0.53 PP
QQ 1.25 1.50 1.50 2.00 2.00 2.00 3.00 3.00 4.00 4.00 4.75 4.75 6.00 6.00 QQ
RR 0.62 0.75 0.75 1.12 1.12 1.12 1.25 1.25 1.50 1.50 1.76 1.76 2.50 2.50 RR
SS 0.50 0.62 0.62 1.00 1.00 1.00 1.25 1.25 1.50 1.50 2.00 2.00 2.00 2.00 SS
TT 0.60 0.75 0.75 1.00 1.00 1.00 1.50 1.50 2.00 2.00 3.00 3.00 3.00 3.00 TT
UU 1.00 1.25 1.25 2.00 2.00 2.00 2.50 2.50 3.00 3.00 4.00 4.00 4.00 4.00 UU
VV 0.20 0.25 0.25 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 VV
WW 8-32 10-32 10-32 1/4-20 1/4-20 1/4-20 5/16-18 5/16-18 3/8-16 3/8-16 3/8-16 3/8-16 1/2-13 1/2-13 WW
XX N/A N/A N/A 5.25 5.25 5.25 6.50 6.50 8.00 8.00 11.00 11.00 13.00 13.00 XX
YY N/A N/A N/A 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.75 0.75 1.00 1.00 YY
ZZ N/A 10-32 X .50 LG
SOC HD CAP SCR
1/4-20 X .62 LG
SOC HD CAP SCR
3/8-16 X 1.00 LG
SOC HD CAP SCR
1/2-13 X 1.25 LG
SOC HD CAP SCR
3/4-16 X 1.50 LG
GRD 8 HEX SCR
ZZ

Notes:

  • @ Long tooling plate dimension is 9.00 inches.
  • # Dimension U1 applies to Bimba Original Line Standard Cylinders and dimension U2 applies to Bimba Original Line Cylinders with magnetic piston option.
  • * 5/8-18 on strokes longer than 6 inches.
  • % Slot is closed on Models 5A and 5B.

Model & Bore

Ultramation offers an extensive combination of cylinder bore to guide shaft sizes. Almost all units accommodate multiple bore sizes to give the designer maximum flexibility when sizing for an application. For bore sizes not listed, please contact our factory.

Cylinder Type & Manufacturer

A variety of cylinders are available for use with the linear thrusters. Both pneumatic and hydraulic cylinders are offered as well as various mounting configurations. Different manufacturers’ cylinders than those listed can easily be supplied and incorporated into thruster designs. Options range from dry service to magnetic pistons for position sensing. Units can also be ordered without the cylinder.

Cylinder Options

Optional internal bumpers are available on most units to reduce end of stroke cycling noise. Optional adjustable cylinder cushions are also available for either the head or cap or both. A captive cushion screw provides easy and safe adjustment of the cylinder cushion while in operation. Most cushion adjusts are located on the opposite side as the cylinder ports. Other cushion locations can be specified.

Bearing Options

Industrial grade linear recirculating ball bearings are standard on all linear thrusters. Optional composite TFE lined bearings are available. Linear ball bearings exhibit higher precision, low sliding friction and require lubrication. Composite bearings have lower precision, increased sliding friction and are self lubricating. Composite bearings function well in washdown or contaminated operating environments.

Auxiliary Mounting Plate

An optional auxiliary mounting plate provides flexible mounting of the linear thrusters. The mounting plate can be specified to be located in three different locations making it an extremely versatile component. Unless otherwise specified, the auxiliary mounting plate is located between the housing and the tooling plate. The gap between the tooling plate and the housing is maintained regardless of mounting plate location. Therefore, no stroke loss is incurred with bottom of housing mounting option.

Tooling Plate

Multiple tooling plate configurations are available for each linear thruster giving the designer maximum interface flexibility. A short counterbored steel tooling plate is supplied as standard. Optional long tooling plates offer increased interface contact and support. Consult factory for tooling plate modifications.

Stainless Steel

The basic linear thruster tooling plates, guide shafts, collars and hardware are carbon alloy steel. Several stainless steel options provide various levels of corrosion protection. The stainless steel options are all supplied with stainless steel tooling plates, shaft collars, cylinder rods and hardware. The F2 option with stainless steel shafting and composite bearings offers the best solution for contaminated or washdown environments.

Position Sensors

Magnetic Reed Switches

sw_mrs

Magnetic reed switches are available on nearly all air cylinders offered with Ultramation Linear Thrusters. Reed switches are actuated by the close proximity of a magnet which is included within the cylinder as part of the piston assembly. A reed switch contains a normally open sealed reed that closes or makes in the presence of a magnetic field. The reed switch returns to the normally open state once the magnetic field is removed. Reed switches, both with and without LED position indicators, are used in the vast majority of applications where the magnetic piston briefly comes to rest at each end of the stroke.

PART NUMBER MRS-.087-B MRS-.087-BL MRS-.087-PBL MRS-1.5-B 1459030000
CONTACTS SPST Form A, NO SPST Form A, NO SPST Form A, NO SPST Form A, NO SPST Form A, NO
CONTACT RATING 10 Watts max. 9 Watts max. 2.5 Watts max. 10 Watts max. 10 Watts (Resistive)
5 Watts (Inductive)
VOLTAGE RATING 200 Volts max. AC/DC 6 to 24 Volts
AC or DC
3 to 120 Volts
AC or DC
12 to 230 Volts
(AC only)
85 to 125 Volts AC
5 to 30 Volts DC
CURRENT RATING 500 mA Resistive (max) 500 mA Resistive (max) 10 mA AC or DC (min)
10 to 20 mA AC or DC (max)
0.1 Amps (min)
1.5 Amps (max)
30 mA to 200 mA (Resistive)
30 mA to 100 mA (Inductive)
ACTUATING TIME (AVG) 1.0 millisecond 1.0 millisecond 1.0 millisecond 2.0 millisecond 3.0 millisecond
TEMPERATURE RANGE -20°F to 200°F -20°F to 200°F -20°F to 200°F -20°F to 200°F 14°F to 140°F
LED INDICATOR No Yes Yes No Yes
STANDARD LEAD LENGTH 24 inches 24 inches 24 inches 24 inches 39 inches
OPTIONAL 144″ LEADS MRS-.087-XB MRS-.087-XBL MRS-.087-XPBL MRS-1.5-XB
CIRCUIT DIAGRAMS mrs087b mrs15b 1459030000

Solid State Switches

sw_hall

Solid state switches are available on nearly all air cylinders offered with Ultramation Linear Thrusters. Like the reed switches, solid state switches are actuated by the close proximity of a magnet which is included within the cylinder as part of the piston assembly. The switch contains circuitry to detect a potential difference when the circuitry is in the presence of a magnetic field. Once detected, the voltage is amplified and used to control a switching output transistor. Being solid state electronic devices, the switches have high trip point accuracies and long life. Models are available in current sinking (NPN) and current sourcing (PNP).

PART NUMBER HSK HSC 1467140000 1467150000 ELECTRICAL CIRCUIT DIAGRAMS
OUTPUT TYPE Sinking (NPN) Sourcing (PNP) Sinking (NPN) Sourcing (PNP)
HSK Sinking Switch
hsk

 

HSC Sourcing Switch

hsc

“ON” VOLTAGE DROP 0.4 Volts max. 1.5 Volts max. 0.7 Volts max. 0.2 Volts max.
INPUT VOLTAGE 5 to 30 VDC 5 to 30 VDC
INPUT CURRENT 25 mA maximum upto 30mA @ 24 VDC
OUTPUT CURRENT 300 mA maximum upto 200mA @ 24 VDC
POWER DISSIPATION 300 mW maximum
TEMPERATURE RANGE -20°F to 160°F 14°F to 140°F
TURN ON TIME 2 microseconds 1 millisecond
TURN OFF TIME 1 microsecond 1 millisecond 1467140000 1467150000
OFF-STATE LEAKAGE 10 µ A maximum 10 µ A maximum
STANDARD LEAD LENGTH 24 inches 39 inches
OPTIONAL 144″ LEAD HSKX HSCX
ADDITIONAL FEATURES Reverse Polarity Protection Over Voltage Protection LED Indicator Reverse Polarity Protection Enclosure Meets IEC IP67 LED Indicator

Inductive Proximity Switches

sw_prox

Ultramation offers a line of highly reliable inductive proximity switches manufactured to provide long-term service in industrial applications. The switches feature a rugged cadmium chrome plated brass case designed to withstand the most aggressive environments.

The proximity switches are fitted into an extremely versatile adapter which can be mounted on any of the eight corners of the Linear Thruster housing. Switch mounting arrangements are designed to sense metal targets attached directly to the tooling plate and a shaft collar. Two-wire AC switches and three-wire DC sinking or sourcing (NPN or PNP) switches are available.

Circuit Type
Sinking (NPN) Sourcing (PNP) 2 Wire AC
OUTPUT MODE NO NO NO
VOLTAGE RANGE 12 to 48 Volts DC 12 to 48 Volts DC 24 to 240 VAC (50/60 Hz)
VOLTAGE DROP (ACROSS SWITCH), CLOSED STATE 2 Volts 2 Volts 7 Volts
MINIMUM LOAD CURRENT 5 mA
MAXIMUM LOAD CURRENT 200 mA 200 mA 200 mA
ON DELAY (MAXIMUM) 0.5 milliseconds 0.5 milliseconds 10 milliseconds
OFF DELAY (MINIMUM) 0.5 milliseconds 0.5 milliseconds 15 milliseconds
SENSING RANGE 0 to 1.6 mm 0 to 1.6 mm 0 to 1.6 mm
TEMPERATURE RANGE -13°F to 176°F -13°F to 176°F -13°F to 176°F
LEAD LENGTH 2m (6 ft) 2m (6 ft) 2m (6 ft)
LED Yes Yes Yes
SHIELDED Yes Yes Yes
PROTECTION CLASS IP68 IP68 IP68
PROTECTION CIRCUITRY Short circuit protection
Overload protection
Radio frequency immunity
Electrostatic; transients; impulse
Reverse polarity protection (DC units)

Circuit Diagrams

3 Wire DC Sinking Diagram 3 Wire DC Sourcing Diagram 2 Wire AC Diagram
3wirenpn 3wirepnp 2wireac

External Bumpers

std_ebLinear Thrusters may be equipped with external urethane bumpers on both the extend and the retract strokes, and are absolutely essential when it is necessary to adjust or limit either stroke length. An extra set of shaft collars is supplied to prevent bumper movement on the extend stroke and included stainless steel washers protect the shaft seals from impact damage. Use of external bumpers between the housing and the tooling plate usually results in reduced cylinder return stroke. When full stroke is essential, compensate by increasing specified stroke.

NOTE:
The single shaft collars supplied with each Linear Thruster are intended for setup purposes only. They must not be used to limit the stroke or serious damage to the Linear Thruster may occur!

Stroke Reduction for YR & YB Options

STROKE REDUCTION
MODEL A L WITHOUT
MOUNTING PLATE
WITH
MOUNTING PLATE
0 0.56 4.00 0.31 0.56
1 0.62 4.62 0.24 0.62
2 0.69 5.38 0.31 0.69
3 0.75 7.00 0.25 0.75
4 0.81 7.88 0.06 0.81
6 1.06 10.88 0.31 1.06
5 1.31 13.00 0.31 1.31

Hydraulic Shock Absorber

shockLinear Thrusters can be equipped with hydraulic shock absorbers to dissipate the kinetic energy associated with stopping a moving load. The HE (shock ready on extend) and HR (shock ready on retract) options include tapped mounting holes in the Linear Thruster housing, one shaft mounted impact bracket, one shock absorber mounting bracket and mounting hardware. The HB option (shock ready on extend & retract) includes all hardware to mount shock absorbers on both the retraction and extension ends of the Linear Thruster.

NOTE:
To prevent damage to the hydraulic shock absorber, a 0.06 inch minimum gap should be set between the shock absorber body and head when fully retracted.

MODEL A B THREAD C D E F
0 0.75 3/8-32 UNEF 1.14 1.88 0.25 1.65
1 0.88 7/16-28 UNEF 2.37 2.13 0.38 2.05
2 1.00 1/2-20 UNF 3.68 3.00 0.38 2.87
3 1.25 3/4-16 UNF 4.47 4.00 0.50 3.75
4 1.50 1-12 UNF 4.75 5.75 0.75 5.50

Flow Controls

Linear Thrusters may be equipped with right angle pneumatic flow controls. Flow controls are useful for controlling the cylinder speed by metering the exhaust air flow from the cylinder.

No Shaft Collars

Linear Thrusters are equipped with a set of shaft collars for setup purposes. Selection of no shaft collars removes the collars from the unit.

Cylinder Specifications

CYLINDER DESIGNATION

A B C D E F G H J K M N
FLUID AIR AIR AIR AIR AIR HYD AIR / HYD AIR AIR AIR AIR AIR HYD
MAX OPERATING PRESSURE (psi) 250 250 250 250 200 500 200 / 500 150 150 250 250 250 3000
OPERATING TEMPERATURE
BUNA-N SEALS
VITON SEALS
-20°F to 200°F
0°F to 400°F
-40 to 250°F
10 to 350°F
-10°F to +165°F
0°F to 400°F
REPAIRABLE No No No No Yes No Yes Yes Yes No No Yes Yes

Theoretical Force Table

MODEL BORE (inches) ROD DIA. (inches) EFF. AREA (in2) DIRECTION OPERATING PRESSURE (PSI)
20 30 40 50 60 70 80 90 100 110 120
0A, 1A 9/16″ 3/16″ .248 EXTEND 5 7 10 12 15 17 20 22 25 27 30
.220 RETRACT 4 7 9 11 13 15 18 20 22 24 26
1B, 2A 3/4″ 1/4″ .441 EXTEND 9 13 18 22 26 31 35 40 44 49 53
.392 RETRACT 8 12 16 20 24 27 31 35 39 43 47
2B 1-1/16″ 5/16″ .886 EXTEND 18 27 35 44 53 62 71 80 89 97 106
.809 RETRACT 16 24 32 40 49 57 65 73 81 89 97
2C 1-1/4″ 7/16″ 1.227 EXTEND 25 37 49 61 74 86 98 110 123 135 147
1.076 RETRACT 22 32 43 54 65 75 86 97 108 118 129
3A 1-1/2″ 7/16″ 1.767 EXTEND 35 53 71 88 106 124 141 159 177 194 212
1.616 RETRACT 32 48 65 81 97 113 129 145 162 178 194
3B 1-3/4″ 1/2″ 2.405 EXTEND 48 72 96 120 144 168 192 216 241 265 289
2.208 RETRACT 44 66 88 110 132 155 177 199 221 243 265
4A 2″ 5/8″ 3.141 EXTEND 63 94 126 157 188 220 251 283 314 346 377
2.834 RETRACT 57 85 113 142 170 198 227 255 283 312 340
4B, 6A 2-1/2″ 5/8″ 4.908 EXTEND 98 147 196 245 294 344 393 442 491 540 589
4.601 RETRACT 92 138 184 230 276 322 368 414 460 506 552
6B, 5A 3″ 3/4″ 7.068 EXTEND 141 212 283 353 424 495 565 636 707 777 848
6.626 RETRACT 133 199 265 331 398 464 530 596 663 729 795
5B 4″ 1″ 12.566 EXTEND 251 377 503 628 754 880 1005 1131 1257 1382 1508
11.780 RETRACT 236 353 471 589 707 825 942 1060 1178 1296 1414

Unit Weight

Model Unit Weight (LBS)
0 0.9 (0.05 x Stroke)
1 1.9 (0.10 x Stroke)
2 4.8 (0.20 x Stroke)
3 9.3 (0.29 x Stroke)
4 20.0 (0.42 x Stroke)
6 38.0 (0.70 x Stroke)
5 65.5 (1.12 x Stroke)