Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-30SB
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-30SB 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 20 to 50 mm on the machine — no shims, no part change.
- BoreØ80 mm
- Max stroke50 mm
- Adjustable range20–50 mm
- Adjuster threadM20×1.5
- Port sizePT3/8
- CushionFixed NBR bumper (both ends)
About the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-30SB
The AirTAC SDAJ80X50-30SB is a compact double-acting single-rod cylinder built for tight axial spaces, featuring a built-in magnet and a male M22x1.5 piston rod thread. An external M20x1.5 adjuster screw lets you dial the extend end-position down from the 50 mm maximum to any point between 20 and 50 mm directly on the machine, eliminating the need for shims or part swaps during changeovers. Because the adjuster sets the mechanical stop rather than altering the piston area, output force remains identical to a standard SDA of this bore, yielding 2513.3 N of push force at 0.5 MPa.
Deceleration at the extend and retract extremes is handled by a fixed NBR bumper, which is not an adjustable air cushion. The short riveted body conserves mounting depth where a larger profile cylinder would fail to fit, and the integrated magnet supports AirTAC reed or electronic solid-state switches for precise end-of-stroke detection. Operating speed ranges from 30 to 500 mm/s across a 0.15 to 1.0 MPa pressure envelope.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-30SB Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-30SB |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Max stroke | 50 mm |
| Adjustable range | 20 – 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 30 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 SDAJ80X50-30SB
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 80 | Bore size in mm. |
| ×50 | Maximum stroke length in mm. |
| -30 | 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 SDAJ80X50-30SB Is Used
Heavy Press Fitment
Dialing the extend stop down to 25 mm on the M20x1.5 screw allows precise insertion of heavy hardware without re-machining stops, leveraging the 2513.3 N push force effectively.
Multi-Format Diverters
Adjusting the extend position between 20 and 50 mm accommodates varying package widths on a packaging line, using the integrated magnet to confirm the altered stroke endpoint.
Vertical Lift Stops
Setting the mechanical stop to 40 mm safely limits a 128.1 kg vertical lift, though an external pilot-operated check valve is required to prevent the load from dropping on air loss.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-30SB the Right Cylinder?
When sizing this 80 mm bore actuator, compare its 2513.3 N push at 0.5 MPa against adjacent bores: stepping down to the SDAJ63 yields 1558.6 N, while stepping up to the SDAJ100 provides 3927 N. Based on the 0.5 MPa figure, a safe working load is approximately 1508 N (60 percent capacity), translating to a vertical lift capability of about 128.1 kg with a 2:1 safety margin. Choose this specific model if your fixture requires on-site stroke tuning between 20 and 50 mm, a PT3/8 air port, and a male-threaded M22x1.5 rod end.
Remember that a plain SDAJ does not hold position or load when air is lost or the valve is centered; the piston drifts and the fixed NBR bumper only decelerates near the end of travel, acting as a mechanical stop rather than a lock. For load holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve. Confirm your bore, 50 mm maximum stroke, 30 mm adjustment window, -S magnet, and -B male rod thread before finalizing the assembly.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 20–50 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 SDAJ80X50-30SB FAQ
This double-acting cylinder delivers 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 force is 513 kgf at 1.0 MPa. Adjusting the external M20x1.5 screw changes the stop position only, not the force output.
The M20x1.5 screw shortens the extend stroke by up to 30 mm, providing a usable range of 20 to 50 mm without shims. The built-in -S magnet works with AirTAC reed or electronic switches for position sensing, while the -B suffix denotes the male M22x1.5 piston rod thread.
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