AirTAC QCK50 Rotary Clamp Cylinder, Ø50, 10-50 mm Stroke
Every stocked AirTAC Ø50 rotary clamp cylinder on one page: 29 order codes in left (QCKL) and right (QCKR) rotation, from $79.06. Pick the rotation, clamp stroke and version to see the exact order code and price.
This combination is not a stock order code. Request a quote and we will confirm availability and price.
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the AirTAC QCK50
The AirTAC QCK50 is a double-acting rotary clamp cylinder with a Ø50 mm bore. As the piston retracts, the rod first turns 90° over a 19 mm rotation stroke and then pulls straight down through the clamp stroke, so the arm swings clear of the part when the clamp opens. On the QCKL the arm turns counterclockwise as it clamps, on the QCKR clockwise.
The piston rod is QPQ treated, which resists weld spatter better than hard chrome, and a stainless steel scraper ring at the front keeps dust and spatter out, so it suits welding fixtures. The body mounting dimensions match the ACQ series, so ACQ mounting accessories fit. It has a magnet and built-in sensor grooves.
QCK50 Technical Specifications
| Model | QCKL50 / QCKR50 |
|---|---|
| Action | Double acting |
| Bore / rod | Ø50 / Ø20 mm |
| Rotation | 90° ±2°, left or right |
| Rotation stroke | 19 mm |
| Clamp strokes | 10, 20, 30, 50 mm (+1.0/0) |
| Force at 0.5 MPa | Clamp (pull) 824.7 N · push 981.7 N |
| Port | PT1/4 |
| Fluid | Air (filtered by 40 µm element) |
|---|---|
| Operating pressure | 0.15-1.0 MPa |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature | -20 to +70 °C |
| Piston speed | 50-200 mm/s |
| Cushion | Bumper |
| Piston rod | QPQ treated |
| Magnet | Built in (S) |
Source: AirTAC Products Catalog 2026A (PDF01-P0700..P0701), QCK series theoretical force, specifications and ordering code.
How the QCK50 Order Code Is Built
| QCK | Rotary clamp cylinder |
|---|---|
| L / R | Rotation: left, right |
| 50 | Bore (mm) |
| ×10 / 20 / 30 / 50 | Clamp stroke (mm) |
| S | Built-in magnet |
| M | Flat rod, no arm (blank = taper rod with arm) |
| FB | Rear flange plate (blank = none) |
| G | G thread (blank = PT) |
All AirTAC QCK50 Order Codes (29)
Each order code links to its own datasheet page. Use Select to load it into the configurator above.
| Order code | Rotation | Stroke | Version | Price | Select |
|---|---|---|---|---|---|
| QCKL50X10S | Left (QCKL) | 10 mm | Taper rod with arm | $91.88 | |
| QCKL50X10SM | Left (QCKL) | 10 mm | Flat rod, no arm | $79.06 | |
| QCKL50X10SMG | Left (QCKL) | 10 mm | Flat rod, no arm, G thread | $79.06 | |
| QCKL50X10SMFB | Left (QCKL) | 10 mm | Flat rod, no arm, rear flange | $86.97 | |
| QCKL50X20S | Left (QCKL) | 20 mm | Taper rod with arm | $97.67 | |
| QCKL50X20SM | Left (QCKL) | 20 mm | Flat rod, no arm | $84.90 | |
| QCKL50X20SMFB | Left (QCKL) | 20 mm | Flat rod, no arm, rear flange | $92.81 | |
| QCKL50X30S | Left (QCKL) | 30 mm | Taper rod with arm | $103.51 | |
| QCKL50X30SFB | Left (QCKL) | 30 mm | Taper rod with arm, rear flange | $111.42 | |
| QCKL50X30SM | Left (QCKL) | 30 mm | Flat rod, no arm | $90.69 | |
| QCKL50X30SMG | Left (QCKL) | 30 mm | Flat rod, no arm, G thread | $90.69 | |
| QCKL50X30SMFB | Left (QCKL) | 30 mm | Flat rod, no arm, rear flange | $98.60 | |
| QCKL50X50S | Left (QCKL) | 50 mm | Taper rod with arm | $115.14 | |
| QCKL50X50SM | Left (QCKL) | 50 mm | Flat rod, no arm | $102.32 | |
| QCKL50X50SMFB | Left (QCKL) | 50 mm | Flat rod, no arm, rear flange | $110.23 | |
| QCKR50X10S | Right (QCKR) | 10 mm | Taper rod with arm | $91.88 | |
| QCKR50X10SM | Right (QCKR) | 10 mm | Flat rod, no arm | $79.06 | |
| QCKR50X10SMG | Right (QCKR) | 10 mm | Flat rod, no arm, G thread | $79.06 | |
| QCKR50X10SMFB | Right (QCKR) | 10 mm | Flat rod, no arm, rear flange | $86.97 | |
| QCKR50X20S | Right (QCKR) | 20 mm | Taper rod with arm | $97.67 | |
| QCKR50X20SM | Right (QCKR) | 20 mm | Flat rod, no arm | $84.90 | |
| QCKR50X20SMFB | Right (QCKR) | 20 mm | Flat rod, no arm, rear flange | $92.81 | |
| QCKR50X30S | Right (QCKR) | 30 mm | Taper rod with arm | $103.51 | |
| QCKR50X30SFB | Right (QCKR) | 30 mm | Taper rod with arm, rear flange | $111.42 | |
| QCKR50X30SM | Right (QCKR) | 30 mm | Flat rod, no arm | $90.69 | |
| QCKR50X30SMFB | Right (QCKR) | 30 mm | Flat rod, no arm, rear flange | $98.60 | |
| QCKR50X50S | Right (QCKR) | 50 mm | Taper rod with arm | $115.14 | |
| QCKR50X50SM | Right (QCKR) | 50 mm | Flat rod, no arm | $102.32 | |
| QCKR50X50SMFB | Right (QCKR) | 50 mm | Flat rod, no arm, rear flange | $110.23 |
Need a combination that is not listed? Request a quote.
Where the QCK50 Is Used
Welding fixtures
QPQ rod and steel scraper stand up to weld spatter on body-in-white and frame jigs.
Machining fixtures
Clamps parts while the arm swings out of the way for loading.
Assembly clamping
Holds parts down during pressing, screwing or gluing.
Choosing the Right QCK50 Configuration
Choose the rotation, left (QCKL, counterclockwise when clamping) or right (QCKR, clockwise), to suit where the arm must swing clear of the part.
Then the clamp stroke: 10, 20, 30, 50 mm on Ø50. The clamp stroke is the straight travel after the 19 mm rotation stroke; tolerance +1.0/0 mm.
The version: the standard taper rod comes with the clamp arm; M has a flat rod with no arm, for your own arm. FB adds the rear flange plate (same as the ACQ F-ACQ50FA). G is G thread; PT is standard.
AirTAC QCK50 FAQ
The direction the arm turns as it clamps: QCKL counterclockwise (left), QCKR clockwise (right), both through 90° ±2°.
The theoretical pull (clamping) force is 824.7 N at 0.5 MPa and the push force 981.7 N. The force at the arm tip is lower and depends on the arm length.
Yes. The body mounting dimensions match the ACQ series, so ACQ mounting accessories fit; the rear flange plate is the F-ACQ50FA.
0.15-1.0 MPa, proof pressure 1.5 MPa, -20 to +70 °C, piston speed 50-200 mm/s, on air filtered to 40 µm.
No. You can order a single piece. Orders are processed and handed to the carrier within 3-5 business days.
Buying the QCK50 from AirtacDistr
Genuine AirTAC parts
Every order code on this page is the AirTAC factory part number. Specifications follow the AirTAC Products Catalog 2026A. About us
Ready in 3-5 business days
That is our time to process the order and hand it to the carrier. No minimum order: a single piece can be ordered.
14-day returns, 1-year warranty
Return within 14 days of delivery; the buyer pays return shipping. The warranty covers defects not caused by misuse. Return policy
Engineering help
Send your application details and we will confirm the right order code, usually within 7-8 hours. Ask us
Page data checked against the live catalog on 2026-11-03.
Request a Quote for the QCK50
Send the order code, quantity and destination. We confirm price, stock and lead time, usually within 7-8 hours.