Specifications: QCKL32X50SG is an AirTAC 32 mm rotary clamp cylinder. Left rotation is selected by the current order code. The cylinder has a 50 mm straight clamping stroke. The specification and dimensions below apply to the 2022 catalog configuration identified by the individual code elements.
Product Catalog
Download Airtac Product Catalog (PDF)
Download AirTAC 2022 Sensor and Mounting Compatibility Guide (PDF)
Download 2022 slide, clamp and stopper accessories (PDF)
For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.
This model code
Parameter
Details
QCK
rotary clamp cylinder; double acting
L
Left / counterclockwise rotation during the downward clamping sequence, as viewed in the catalog rotation diagram
32
32 mm nominal bore
X50
50 mm clamping stroke
S
Built-in magnet; sensor switch ordered separately
(rod-end code omitted)
Tapered rod end with clamp arm
(mounting code omitted)
No mounting bracket
G
G1/8
Design and operating features
The QPQ-treated rod improves resistance to welding spatter. The detailed parts table specifies a stainless dust scraper on bores above 16 mm; it is absent on 12/16 mm versions.
Cylinder-body mounting dimensions follow the corresponding ACQ size. The catalog explicitly identifies the shared flange order codes.
The tapered rod-end arm can be set to the required angular position before tightening; the M flat rod-end version does not include a clamp arm.
Technical specifications
Parameter
Details
Nominal bore
32 mm
Actuation
double acting
Working medium
Compressed air, filtered through a 40 μm filter element
Operating temperature
−20 to +70 °C
Port thread
G1/8
Operating pressure
0.15–1 MPa
Proof pressure
1.5 MPa
Repeatability
±2°
Rotation angle
90°
Rotation travel drawing tolerance
90° ±3°; distinct from ±2° repeatability
Rotation stroke
15 mm
Straight clamping stroke
50 mm
Clamping-stroke tolerance
+1.0/0 mm
Piston speed
50–200 mm/s, subject to the inertia graph
Cushion
Bumper
Compatible position sensors
The 2022 selection information for QCK32 lists G profile: CMSG / DMSG / EMSG; J profile: CMSJ / DMSJ. Select the full sensor code for the required output, supply voltage, cable length and connector. Sensors are ordered separately; a matching mounting profile alone does not specify the electrical configuration.
For normal magnets, QCK refers to the matching ACQ sensor selection. The installation note recommends DS1-69AM for a strong-magnet version; the S code in this product does not separately identify a strong-magnet option.
Force and load selection
Parameter
Details
0.1 MPa
IN (clamping): 60.3 N; OUT (extension): 80.4 N
0.2 MPa
IN (clamping): 120.6 N; OUT (extension): 160.8 N
0.3 MPa
IN (clamping): 181 N; OUT (extension): 241.3 N
0.4 MPa
IN (clamping): 241.3 N; OUT (extension): 321.7 N
0.5 MPa
IN (clamping): 301.6 N; OUT (extension): 402.1 N
0.6 MPa
IN (clamping): 361.9 N; OUT (extension): 482.5 N
0.7 MPa
IN (clamping): 422.2 N; OUT (extension): 563 N
0.8 MPa
IN (clamping): 482.5 N; OUT (extension): 643.4 N
These are theoretical catalog outputs, not a rated workpiece mass. Values below the specified operating-pressure range are table references and do not extend the permitted operating range. Arm bending and rotational inertia can require a lower pressure or speed than the cylinder maximum.
Parameter
Details
Standard clamp-arm assembly rotational inertia
0.0001653 kg·m²; this reference does not mean an arm is included with an M rod end
Arm-length / pressure example
At 80 mm arm length: QCK20/25 below 0.45 MPa; QCK32/40 below 0.55 MPa.
Inertia / speed example
At 10⁻³ kg·m²: QCK20/25 peak speed below 82 mm/s; QCK32/40 below 150 mm/s.
Use the arm-length versus pressure and inertia versus maximum-speed curves for the actual bore and fixture. The catalog relates maximum piston speed to average speed by a factor of 1.6; use peak speed when checking the graph. Add the inertia of the selected arm and attached tooling. Keep the assembly within both bending and inertia limits.
Inertia calculation references
Parameter
Details
Units
Mass in kg; lengths in m; inertia I in kg·m²
Slender rod, axis at its center
I = m × a² / 12
Slender rod, divided at the rotation axis
I = (m₁ × a₁² + m₂ × a₂²) / 3
Thin rectangular plate, central perpendicular axis
I = m × (a² + b²) / 12
Cylindrical fixture offset from the axis
I = m × D² / 8 + m × L²
Total moving inertia
I_total = I_arm + I_fixture; include every moving attachment
Dimensions for this configuration
Linear drawing dimensions are in mm unless a thread or angle is stated. Letter labels retain their meaning in the corresponding catalog view. Only the current action and attachment form are selected; parenthesized single-acting values from the source are resolved to this model.
Parameter
Details
AD
19
B
45
BC
19
C
82
CA
49.5
CB
67
D
16
E
M10×1.5
G
5
J
9
JA
5.5
JB
34
JC
—
K
M6×1
KA
17
L
M8×1.25
LA
13.5–25.5
LB
45
LC
10
M
30
MA
7
N
29.5
P
G1/8
PA
34.5
PB
8.5
A + 2 × clamping stroke
108 + 100 = 208
AB + clamping stroke
17.5 + 50 = 67.5
AC + clamping stroke
71.5 + 50 = 121.5
For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.
Internal structure and principal materials
Parameter
Details
1 Clamp arm
Free-cutting steel
2 Countersunk socket screw
Medium-carbon or low-carbon steel
3 Dust scraper
Not fitted for 12/16 mm; stainless steel for other bores
4 Front-cover seal
NBR
5 Piston rod
SCr440
6 Front cover
Aluminum alloy
7 C-type retaining ring
Spring steel
8 Anti-rotation screw
Medium-carbon or low-alloy steel
9 Steel pin
SCr440
10 O-ring
NBR
11 O-ring
NBR
12 Body
Aluminum alloy
13 Magnet holder
Brass for 12/16 mm; aluminum alloy for other bores
14 Magnet pad
NBR
15 Magnet
Sintered neodymium-iron-boron for 12–25 mm; plastic for other bores
16 Piston seal
NBR
17 Rear cover
Aluminum alloy
18 Bumper
TPU for 12–25 mm; NBR for other bores
19 Wear ring
Not fitted for 12–32 mm; wear-resistant material for other bores
20 Piston
Brass for 12/16 mm; aluminum alloy for other bores
21 Hex nut
Carbon steel
22 Screw
Free-cutting steel
23 Bumper
PTFE for 12–40 mm; POM for other bores
Part numbers refer to this series and the illustrated configuration. The parts list describes construction; it is not a supplied spare-parts kit or an independent ordering list.
Accessories and configuration boundaries
The catalog lists F-ACQ32FA as the shared aluminum-alloy flange order code for the 32 mm QCK size. It is used with the rear FB mounting configuration shown on the QCK installation drawing; the printed accessory code remains FA.
This full order code has no FB mounting suffix; do not treat a separately illustrated flange as included.
A front-flange requirement is referred to the manufacturer in the source. Do not rename the shared FA part code or assume all other ACQ accessories suit every QCK configuration.
Installation and use
Use clean compressed air filtered through a 40 μm element and flush all tubing before connection. Fit meter-out flow control at the ports; rotational impact grows rapidly when speed is excessive.
Clamp only during the straight clamping stroke, after rotation is complete. The clamping face must be parallel to the workpiece and perpendicular to the cylinder axis; avoid clamping on a slope.
Keep the workpiece stationary after clamping. Prevent side loads and impacts; do not use the cylinder to straighten a workpiece.
When adjusting or removing a clamp arm, support the arm with an open-ended wrench and use the hex wrench on its fastener. Do not lock the cylinder body and transmit the tightening torque through its internal mechanism.
Protect the ports and rod against contamination and corrosion during storage. Exhaust residual air and support the load before maintenance.
Do not mount the cylinder horizontally; the dedicated selection page expressly excludes that mounting orientation.
Clean welding spatter from the rod and dust-scraper area. The FB configuration uses a rear flange; the source shows both upper and lower fixture-plate mounting arrangements.
Optional magnetic sensors and matching cables
G-profile: CMSG — standard/A05 reed sensorsTwo-wire reed operation at 5–240 V AC/DC.CMSG-020, CMSG-030, CMSG-050, CMSG-100, CMSG-M08, CMSG-M08010, CMSG-M08020, CMSG-M08030, CMSG-M12, CMSG-M12010, CMSG-M12020, CMSG-M12030, A05-CMSG-020, A05-CMSG-030, A05-CMSG-050, A05-CMSG-100
G-profile: CMSG — high-temperature reed sensors (final -H suffix)Two-wire reed operation at 5–240 V AC/DC.CMSG-020-H, CMSG-030-H, CMSG-050-H, CMSG-100-H, CMSG-M08-H, CMSG-M08010-H, CMSG-M08020-H, CMSG-M08030-H, CMSG-M12-H, CMSG-M12010-H, CMSG-M12020-H, CMSG-M12030-H
G-profile: DMSG — two-wire electronic sensorsTwo-wire electronic operation at 10–28 V DC.DMSG-020, DMSG-030, DMSG-050, DMSG-100, DMSG-M08, DMSG-M08010, DMSG-M08020, DMSG-M08030, DMSG-M12, DMSG-M12010, DMSG-M12020, DMSG-M12030, DMSG-020-W, DMSG-030-W, DMSG-050-W, DMSG-100-W, A05-DMSG-020, A05-DMSG-030, A05-DMSG-050, A05-DMSG-100, A06-DMSG-020, A06-DMSG-030, A06-DMSG-050, A06-DMSG-100
G-profile: DMSG — NPN electronic sensorsNPN three-wire output with a 5–30 V DC supply.DMSG-N020, DMSG-N030, DMSG-N050, DMSG-N100, DMSG-NM08, DMSG-NM08010, DMSG-NM08020, DMSG-NM08030, DMSG-NM12, DMSG-NM12010, DMSG-NM12020, DMSG-NM12030, DMSG-N020-W, DMSG-N030-W, DMSG-N050-W, DMSG-N100-W
G-profile: DMSG — PNP electronic sensorsPNP three-wire output with a 5–30 V DC supply.DMSG-P020, DMSG-P030, DMSG-P050, DMSG-P100, DMSG-PM08, DMSG-PM08010, DMSG-PM08020, DMSG-PM08030, DMSG-PM12, DMSG-PM12010, DMSG-PM12020, DMSG-PM12030, DMSG-P020-W, DMSG-P030-W, DMSG-P050-W, DMSG-P100-W
G-profile: EMSG — miniature two-wire sensorsMiniature two-wire electronic operation at 10–28 V DC.EMSG-020, EMSG-030, EMSG-050, EMSG-100, EMSG-M08, EMSG-M08010, EMSG-M08020, EMSG-M08030, EMSG-M12, EMSG-M12010, EMSG-M12020, EMSG-M12030, EMSG-020-W, EMSG-030-W, EMSG-050-W, EMSG-100-W, EMSG-M08-W, EMSG-M08010-W, EMSG-M08020-W, EMSG-M08030-W, EMSG-M12-W, EMSG-M12010-W, EMSG-M12020-W, EMSG-M12030-W, A05-EMSG-020, A05-EMSG-030, A05-EMSG-050, A05-EMSG-100, A06-EMSG-020, A06-EMSG-030, A06-EMSG-050, A06-EMSG-100
J-profile: CMSJ — standard/A05 reed sensorsTwo-wire reed operation at 5–240 V AC/DC.CMSJ-020, CMSJ-030, CMSJ-050, CMSJ-100, CMSJ-M08, CMSJ-M08010, CMSJ-M08020, CMSJ-M08030, CMSJ-M12, CMSJ-M12010, CMSJ-M12020, CMSJ-M12030, A05-CMSJ-020, A05-CMSJ-030, A05-CMSJ-050, A05-CMSJ-100
J-profile: CMSJ — high-temperature reed sensors (final -H suffix)Two-wire reed operation at 5–240 V AC/DC.CMSJ-020-H, CMSJ-030-H, CMSJ-050-H, CMSJ-100-H, CMSJ-M08-H, CMSJ-M08010-H, CMSJ-M08020-H, CMSJ-M08030-H, CMSJ-M12-H, CMSJ-M12010-H, CMSJ-M12020-H, CMSJ-M12030-H
J-profile: DMSJ — two-wire electronic sensorsTwo-wire electronic operation at 10–28 V DC.DMSJ-020, DMSJ-030, DMSJ-050, DMSJ-100, DMSJ-M08, DMSJ-M08010, DMSJ-M08020, DMSJ-M08030, DMSJ-M12, DMSJ-M12010, DMSJ-M12020, DMSJ-M12030, DMSJ-020-W, DMSJ-030-W, DMSJ-050-W, DMSJ-100-W, A05-DMSJ-020, A05-DMSJ-030, A05-DMSJ-050, A05-DMSJ-100
J-profile: DMSJ — NPN electronic sensorsNPN three-wire output with a 5–30 V DC supply.DMSJ-N020, DMSJ-N030, DMSJ-N050, DMSJ-N100, DMSJ-NM08, DMSJ-NM08010, DMSJ-NM08020, DMSJ-NM08030, DMSJ-NM12, DMSJ-NM12010, DMSJ-NM12020, DMSJ-NM12030, DMSJ-N020-W, DMSJ-N030-W, DMSJ-N050-W, DMSJ-N100-W
J-profile: DMSJ — PNP electronic sensorsPNP three-wire output with a 5–30 V DC supply.DMSJ-P020, DMSJ-P030, DMSJ-P050, DMSJ-P100, DMSJ-PM08, DMSJ-PM08010, DMSJ-PM08020, DMSJ-PM08030, DMSJ-PM12, DMSJ-PM12010, DMSJ-PM12020, DMSJ-PM12030, DMSJ-P020-W, DMSJ-P030-W, DMSJ-P050-W, DMSJ-P100-W
Two-wire mating cables (B)For a matching M8 or M12 two-wire male sensor; ordered separately.F-ECM08B020, F-ECM08B030, F-ECM08B050, F-ECM08B100, F-ECM12B020, F-ECM12B030, F-ECM12B050, F-ECM12B100
Three-wire mating cables (C)For a matching M8 or M12 NPN/PNP male sensor; ordered separately.F-ECM08C020, F-ECM08C030, F-ECM08C050, F-ECM08C100, F-ECM12C020, F-ECM12C030, F-ECM12C050, F-ECM12C100
The listed G-profile and J-profile groups are alternative sensor choices for the normal-magnet QCK configuration. Confirm that magnet version before selecting a listed sensor; the S suffix alone does not identify a strong-magnet version, which is outside this list. Match the actual switch groove, electrical circuit and cable. These separately ordered options are not a required set. A final -H on a CMS order code selects the high-temperature reed version.
CMSG and CMSJ reed sensors are limited to 100 mA, 10 W and 200 Hz, with no internal consumption or leakage. Standard/A05 voltage drop is at most 2.5 V at 100 mA DC; versions with the final -H suffix have no residual voltage or indicator LED.
Two-wire DMSG/DMSJ and EMSG require 2.5–100 mA loads, up to 2.8 W and 1,000 Hz. Maximum consumption, residual voltage and leakage are 3 mA, 3.5 V and 0.06 mA respectively.
NPN/PNP DMSG/DMSJ outputs are rated to 30 V / 200 mA, 6 W and 1,000 Hz. Maximum consumption, residual voltage and leakage are 5 mA, 0.7 V and 0.01 mA respectively. Check controller input compatibility as well as load ratings.
Sensor and female-cable endings 020/030/050/100 mean 2/3/5/10 m. M08/M12 sensors have M8/M12 male connectors on 0.5 m leads; M08010/M08020/M08030 and M12010/M12020/M12030 give 1/2/3 m leads. Select lead length to suit the installation independently of the clamping stroke.
Match female cables to the male connector size and wire count; direct-lead sensors need none. B pinout: 1 brown (+), 4 blue (−), 3 unused. C pinout: 1 brown (+), 3 blue (−), 4 black output. Check the mating cable and connector ratings separately.
A05 flex-resistant robotics cable and A06 oil-resistant flex cable have a recommended minimum bend radius of 19 mm. Both are two-wire direct-lead types, without M8/M12, NPN/PNP or W options; A05-CMS also excludes the final high-temperature -H suffix. W means waterproof: DMS-W has direct leads only; the listed EMS-W options also include connectors. DMSJ is not available with A06 cable; the listed A05-DMSJ options use two-wire direct leads.
Sensor temperature limits are −10 to +70°C, or −10 to +125°C for CMS versions with the final -H suffix. The QCK cylinder remains limited to +70°C. Ordinary, high-temperature and A05 sensors are IP64; W/A06 are IP68. These ratings do not extend to the cylinder, connectors or whole assembly; use their common limits.
CMS has no protection circuit; DMS/EMS have reverse-polarity and surge protection, and EMS also has temperature-overload protection. Reed, two-wire electronic, NPN and PNP circuits are not interchangeable. Complete and insulate wiring before powering it; keep it separate from power/high-voltage wiring. For direct leads, connect brown and blue in series with the load on two-wire types; do not connect the switch alone across the supply. On three-wire types, brown is positive supply, blue is negative and black is output; connect an NPN load to positive and a PNP load to negative.
Install the selected sensor in its matching switch groove on the normal-magnet QCK body; no separate sensor mounting bracket is required. For a G-profile sensor, loosen the locking screw so it does not project below the sensor base. For a J-profile sensor, loosen the screw enough to let its lower mounting piece enter the groove. Slide it to the required position, then tighten. Set detection at the actuation-range centre. Recommended sensor-screw torque is 0.15–0.20 N·m, never over 0.25 N·m; these are not cylinder mounting torques. Prevent impacts; keep cables free of strain and avoid unnecessary movement or bending. Observe the stated bend-radius guidance for flex-resistant versions, and inspect fixings, cables and indication.
Keep ordinary sensors dry and do not immerse waterproof types for long periods. Avoid explosive gas, aggressive chemicals, sudden temperature changes, welding interference and magnetic debris. Provide suitable protection for A05 cables exposed to heat, dust, water or oil, and for A06 cables exposed to weld spatter.
Optional air connections, tubing and electrical controls
These separately ordered options use a selected 6 mm OD tube circuit. The tube size and valve are interface examples, not a catalog flow recommendation or a validated clamp assembly. Select capacity and response for the actual arm, fixture inertia and required motion time.
GPC601: G1/8 male × 6 mm tube ODStraight connection at each cylinder working port; no speed adjustment
GPTL601A: G1/8 male × 6 mm tube OD; A-typeCylinder-port meter-out speed control instead of the straight fitting
PC6M5: M5×0.8 male × 6 mm tube ODStraight connection at the separately selected valve P/A/B ports
US98A060040100MBU: polyester polyurethane; 6 mm OD × 4 mm ID; blue, 100 m rollOptional tube packaging example; cut to installed length
UE95A060040100MBU: polyether polyurethane; 6 mm OD × 4 mm ID; blue, 100 m rollOptional tube packaging example; cut to installed length
BSLM5: M5×0.8 male; 0–1 MPa, −20 to +70°COptional silencer at selected valve exhaust R/S only; not at cylinder working ports
5V110M5A050, 5V110M5A200, 5V120M5A050, 5V120M5A200: M5×0.8 female main ports; M5×0.8 female exhaust ports; terminal-cable version220 V AC solenoid direction control for rotation and clamping/release
5V110M5B050, 5V110M5B200, 5V120M5B050, 5V120M5B200: M5×0.8 female main ports; M5×0.8 female exhaust ports; terminal-cable version24 V DC solenoid direction control for rotation and clamping/release
5V110M5C050, 5V110M5C200, 5V120M5C050, 5V120M5C200: M5×0.8 female main ports; M5×0.8 female exhaust ports; terminal-cable version110 V AC solenoid direction control for rotation and clamping/release
5V110M5E050, 5V110M5E200, 5V120M5E050, 5V120M5E200: M5×0.8 female main ports; M5×0.8 female exhaust ports; terminal-cable version24 V AC solenoid direction control for rotation and clamping/release
5V110M5F050, 5V110M5F200, 5V120M5F050, 5V120M5F200: M5×0.8 female main ports; M5×0.8 female exhaust ports; terminal-cable version12 V DC solenoid direction control for rotation and clamping/release
Choose GPC601 or GPTL601A at each G1/8 cylinder chamber port; the A-type controller restricts cylinder-to-tube exhaust and permits free charging. Keep the two work lines separate. Use PC6M5 at the separate M5×0.8 valve P/A/B ports. Match each end by its stated thread rather than assuming cylinder and valve ports are identical.
Fittings/controllers accept exact 6 mm OD soft nylon or polyurethane tubing at 0–1 MPa and −20 to +70°C. The recommended controller-cap rotation torque is 0.08 N·m, not thread-tightening torque. Seat the G parallel-thread sealing ring correctly; G and PT threads are not interchangeable. Seat the separate M5 valve-side gasket correctly.
The listed 5V100 options are 5/2 valves with M5×0.8 supply P, work A/B and exhaust R/S ports. The 5V110 is single-solenoid spring return; 5V120 is double-solenoid with memory. Select the loss-of-power behavior for the clamp sequence; valve memory is not mechanical load retention.
Select one complete valve code for the installed supply. Final 050/200 selects a 0.5/2 m terminal cable, not a DIN plug. AC tolerance is +15%/−10% at 2.0 VA; DC is ±10% at 1.6 W. Connect the selected voltage and signals according to the valve wiring requirements.
The selected branch is limited to 0.15–0.8 MPa. The 5V100 valve limit is 0.15–0.8 MPa; the common temperature range is −20 to +70°C, subject to derating and lower installed-component limits. The original cylinder body rating remains 0.15–1 MPa. Its 50–200 mm/s range remains subject to the original load and inertia limits and is not an achieved-speed guarantee for this circuit.
BSLM5 fits the selected valve exhaust R/S ports (M5×0.8) only. Silencer limits are 0–1 MPa and −20 to +70°C; it does not belong in a cylinder working port.
The two blue 100 m tube codes are alternative packaging examples, not required installed lengths. US98A polyester-PU is rated −20 to +70°C and UE95A polyether-PU −40 to +70°C; both are rated 1 MPa at 23°C. Minimum bend radii (US/UE) are 15/12 mm. Apply temperature derating and the lowest component limit.Estimated weight
950 g. This is an estimated reference, not an AirTAC measured product or shipping weight.
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