Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-75S
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-75S is a genuine double-acting COMPACT cylinder (Ø80mm bore) whose extend end-position is set by an external M20×1.5 adjustment screw. You can dial the stroke anywhere from 0 to 55 mm on the machine — no shims, no part change.
- BoreØ80 mm
- Max stroke55 mm
- Adjustable range0–55 mm
- Adjuster threadM20×1.5
- Port sizePT3/8
- CushionFixed NBR bumper (both ends)
About the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-75S
The AirTAC SDAJ80X55-75S is a compact double-acting single-rod cylinder featuring an external adjustable extend stop. By turning the R (M20x1.5) screw, you can dial the forward stroke down from its 55 mm maximum all the way to 0 mm directly on the machine, eliminating the need for shims or part changes. The short riveted body saves valuable axial mounting depth where a round-body or profile cylinder will not fit. Force remains identical to a standard SDA of this bore, delivering 2513.3 N push at 0.5 MPa.
This 80 mm bore unit uses a 25 mm piston rod and a PT3/8 air port. End-of-travel deceleration is handled by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion. Equipped with a built-in piston magnet (-S), it supports AirTAC reed or electronic switches for position confirmation. Operating speed ranges from 30 to 500 mm/s.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-75S Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-75S |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Max stroke | 55 mm |
| Adjustable range | 0 – 55 mm |
| Adjuster thread (R) | M20×1.5 |
| Port size | PT3/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M14×1.5 F / M22×1.5 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 75 mm. Force is unchanged from a standard SDA of the same bore. Specifications follow the official AirTAC SDAJ datasheet.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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 SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-75S
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 80 | Bore size in mm. |
| ×55 | Maximum stroke length in mm. |
| -75 | 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 SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-75S Is Used
Heavy Clamping Dials
Adjust the 0-55 mm forward stop on the fly for high-force clamping tasks, leveraging the 2513.3 N push to secure varying workpiece sizes without swapping hardware.
Vertical Lift Stops
Set precise downward travel limits for lifts up to 128.1 kg with a 2:1 margin, using the R screw to prevent over-travel while the fixed NBR bumper absorbs the final shock.
Short-Depth Pressing
Fit the compact riveted body into tight machine frames to deliver 3518.6 N of pressing force at 0.7 MPa, dialing the exact extend position during initial tool commissioning.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-75S the Right Cylinder?
When sizing this model, evaluate both neighbouring bores. Stepping down to the SDAJ63 yields 1558.6 N push at 0.5 MPa, whereas stepping up to the SDAJ100 provides 3927 N. This SDAJ80X55-75S sits comfortably in the middle at 2513.3 N, offering a safe working load of roughly 1508 N (about 60% of the 0.5 MPa figure) and a vertical lift capacity of approximately 128.1 kg with a 2:1 safety margin.
It is the right choice for setups requiring frequent on-site stroke tuning within the 0-55 mm extend window. Confirm the 80 mm bore, 55 mm stroke, 75 mm window, PT3/8 port, female M14x1.5 rod thread, and the -S magnet. Note that a plain cylinder does not hold its load on air loss or valve centring; the piston drifts and the bumper only decelerates near the end. For a held load 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 0–55 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 M20×1.5 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 SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-75S FAQ
At 0.5 MPa, this 80 mm bore cylinder provides 2513.3 N push and 2267.8 N pull. At 0.7 MPa, push increases to 3518.6 N and pull to 3175 N. The theoretical maximum push is 513 kgf at 1.0 MPa.
The M20x1.5 adjuster screw shortens the extend stop by up to 75 mm, allowing you to set the forward stroke anywhere between 0 and 55 mm on-site. The -S option includes a built-in piston magnet for use with AirTAC reed or electronic switches.
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