Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-40SB
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-40SB 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 10 to 50 mm on the machine — no shims, no part change.
- BoreØ80 mm
- Max stroke50 mm
- Adjustable range10–50 mm
- Adjuster threadM20×1.5
- Port sizePT3/8
- CushionFixed NBR bumper (both ends)
About the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-40SB
The AirTAC SDAJ80X50-40SB is a compact double-acting single-rod cylinder engineered with an external adjustable extend stop. By turning the M20x1.5 adjuster screw, you can dial the forward end-position anywhere between 10 and 50 mm directly on your machine, eliminating the need for shims or part swaps. Because the mechanism solely dictates the mechanical stop rather than altering the piston area, output force remains identical to a standard SDA of this bore, delivering 2513.3 N of push at 0.5 MPa.
This specific configuration includes a built-in piston magnet for AirTAC reed or electronic switches, alongside a male M22x1.5 threaded rod end for secure external mounting. The short riveted body significantly reduces axial mounting depth compared to round-body alternatives, fitting into tight machine footprints. End-of-stroke deceleration is handled by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion or a mid-stroke lock.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-40SB Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-40SB |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Max stroke | 50 mm |
| Adjustable range | 10 – 50 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 40 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 SDAJ80X50-40SB
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 80 | Bore size in mm. |
| ×50 | Maximum stroke length in mm. |
| -40 | 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 SDAJ80X50-40SB Is Used
Press Fit Tuning
Dial in the exact 10 to 50 mm extend stop during press fit commissioning to accommodate material variances without swapping out the entire actuator.
Carton Flap Folding
Adjust the male-threaded rod end on the fly to fold varying carton sizes on a high-changeover packaging line, ensuring precise mechanical stops.
Heavy Vertical Lifts
Lift loads up to 128.1 kg with a 2:1 safety margin, using the M20x1.5 adjuster to set precise downward travel limits before the fixed NBR bumper engages.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-40SB the Right Cylinder?
When sizing this 80 mm bore actuator, evaluate your force requirements against its neighbours: stepping down to the SDAJ63 yields 1558.6 N of push at 0.5 MPa, while stepping up to the SDAJ100 provides 3927 N. This model is ideal for applications requiring heavy push force—such as a safe working load of roughly 1508 N, or a vertical lift of about 128.1 kg with a 2:1 margin—combined with frequent on-machine stroke tuning. The PT3/8 air port and 25 mm piston rod are fixed by the bore size.
Confirm the 50 mm maximum stroke, 40 mm adjustment window, and the SB option codes (built-in magnet for solid-state or reed sensors, plus the male M22x1.5 rod thread) match your assembly. Note that a plain cylinder does not hold position or load when air is lost or the valve is centred; the fixed bumper only decelerates near the end of travel. For load holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 10–50 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 SDAJ80X50-40SB FAQ
The double-acting single rod generates 2513.3 N push and 2267.8 N pull at 0.5 MPa, and 3518.6 N push at 0.7 MPa. The theoretical maximum push is 513 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa, with a speed range of 30-500 mm/s.
The M20x1.5 external screw shortens the extend stroke by up to 40 mm, giving a usable forward range of 10 to 50 mm. The included S option provides a built-in piston magnet compatible with AirTAC reed or electronic switches for position sensing.
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