Airtac SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ50X80-20SB
The AirTAC Airtac SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ50X80-20SB is a genuine double-acting COMPACT cylinder (Ø50mm bore) whose extend end-position is set by an external M16×1.5 adjustment screw. You can dial the stroke anywhere from 60 to 80 mm on the machine — no shims, no part change.
- BoreØ50 mm
- Max stroke80 mm
- Adjustable range60–80 mm
- Adjuster threadM16×1.5
- Port sizePT1/4
- CushionFixed NBR bumper (both ends)
- 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 SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ50X80-20SB
The AirTAC SDAJ50X80-20SB is a double-acting compact cylinder featuring an external M16x1.5 adjustment screw that dials the extend stop directly on your machine. You can set the forward end-position anywhere between 60 and 80 mm without swapping shims or parts. Because the adjuster only limits travel and not piston area, output force remains identical to a standard 50 mm bore unit, delivering about 981.7 N of push at 0.5 MPa.
This variant includes a built-in piston magnet for AirTAC reed or electronic switches and a male M18x1.5 piston rod end. The short riveted body significantly reduces axial mounting depth where space is tight. End-of-stroke deceleration relies on a fixed NBR bumper rather than an adjustable air cushion. Operating speed spans 30-500 mm/s across a 0.15-1.0 MPa pressure range.
Airtac SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ50X80-20SB Technical Specifications
| Model | Airtac SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ50X80-20SB |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø50 mm |
| Max stroke | 80 mm |
| Adjustable range | 60 – 80 mm |
| Adjuster thread (R) | M16×1.5 |
| Port size | PT1/4 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M10×1.5 F / M18×1.5 male (B) |
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed NBR bumper (both ends) |
The adjustment screw shortens the extend stroke by up to 20 mm. Force is unchanged from a standard SDA of the same bore. Specifications follow the official AirTAC SDAJ datasheet.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Force matches a standard SDA of the same bore; the adjuster only sets the stop position, not the area. Actual usable force is lower than theoretical due to friction.
Model Code: Airtac SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ50X80-20SB
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 50 | Bore size in mm. |
| ×80 | Maximum stroke length in mm. |
| -20 | Adjustable window (10/20/30/40/50/75/100 mm). |
| S / B | S = magnet; B = male-thread rod (both optional). |
Thread: PT standard. Related SDA-family variants: SDA (fixed stroke), SDAD (double rod), SSA/STA (single acting), SDAT (duplex), SDAW (duplex-end).
Where the Airtac SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ50X80-20SB Is Used
Machining Clamp Tuning
Dial the 60-80 mm extend stop during changeovers to clamp raw castings of varying widths without fabricating custom spacers.
Carton Flap Folding
Adjust the male M18x1.5 rod extension on-site to perfectly fold varying box heights, leveraging the 981.7 N push force.
Vertical Lift Dwell
Set a precise upper travel limit for a 50 kg vertical lift fixture, using the sensor magnet to trigger the next cycle.
Is the Airtac SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ50X80-20SB the Right Cylinder?
When sizing this unit, evaluate both neighbours: the 40 mm bore yields 628.3 N push at 0.5 MPa, while the 63 mm bore provides 1558.6 N. This 50 mm model sits comfortably in the middle, offering a safe working load of roughly 589 N (60% of its 981.7 N capacity) and can vertically lift about 50 kg with a 2:1 safety margin. Choose this specific configuration when your fixture requires on-site stroke tuning between 60 and 80 mm, a PT1/4 port, a male M18x1.5 rod thread, and position sensing via the integrated magnet.
Remember that a plain compact cylinder does not hold a load if air pressure drops or the valve centers; the piston will drift. The fixed NBR bumper only decelerates the stroke near its mechanical stop and acts purely as an end limit, never as a brake. For load-holding without live pressure, install an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 60–80 mm
- ✓ Force at your working pressure
- ✓ Access to reach the R adjuster
- ✓ Magnet (S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Lock the M16×1.5 adjuster after setting the stroke.
- check Avoid side load on the piston rod.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ50X80-20SB FAQ
At 0.5 MPa this 50 mm bore cylinder provides 981.7 N push and 824.7 N pull. At 0.7 MPa it delivers 1374.4 N push and 1154.5 N pull. The theoretical maximum push is 200 kgf at 1.0 MPa.
The M16x1.5 screw mechanically shortens the forward stroke from the 80 mm maximum down to 60 mm without altering force. The included -S magnet works with AirTAC reed or electronic switches mounted in the body grooves for position detection.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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