The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X15-20SB is a genuine double-acting COMPACT cylinder (Ø100mm bore) whose extend end-position is set by an external M27×2.0 adjustment screw. You can dial the stroke anywhere from 0 to 15 mm on the machine — no shims, no part change.
The AirTAC SDAJ100X15-20SB is a compact double-acting single-rod cylinder engineered for heavy-duty positioning where axial depth is restricted. Its short riveted body saves mounting space while delivering 3927 N of push force at 0.5 MPa. An external M27x2.0 adjuster screw lets you dial the extend stop down to 0 mm directly on the machine, eliminating the need for shims or part swaps during changeovers.
This specific configuration includes a built-in piston magnet for AirTAC reed or electronic switches and a male M26x1.5 piston rod end. End-of-travel shock is absorbed by a fixed NBR bumper, which decelerates the load but is not an adjustable air cushion. The adjuster defines the mechanical stop position without altering the bore's force output.
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X15-20SB |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 15 mm |
| Adjustable range | 0 – 15 mm |
| Adjuster thread (R) | M27×2.0 |
| Port size | PT3/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M18×1.5 F / M26×1.5 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3525 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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.
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 100 | Bore size in mm. |
| ×15 | 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).
Dial the extend stop from 0 to 15 mm to set exact contact depth on high-force press tasks without re-engineering the fixture.
Lift loads up to 200.2 kg safely using the 3927 N push force, tweaking the mechanical stop to prevent over-travel.
Rapidly adjust the extend position during format changes on packaging machinery using the external M27x2.0 screw.
Choosing this 100 mm bore provides a theoretical maximum push of 801 kgf at 1.0 MPa. Sizing both ways, stepping down to an SDAJ80 yields 2513.3 N of push at 0.5 MPa, whereas this 100 mm unit delivers 3927 N. Based on the 0.5 MPa figure, the safe working load is approximately 2356 N (about 60% capacity), translating to a vertical lift capability of roughly 200.2 kg with a 2:1 safety margin.
This model is ideal for operators needing on-site stroke tuning to perfect a pressing or lifting action. Remember that a plain cylinder does not hold its load if air pressure drops or the valve is centered; the piston will drift. For secure load holding without live pressure, integrate an external rod lock or a pilot-operated check valve. Configuration confirmed: 100 mm bore, 15 mm nominal stroke, 20 mm window, PT3/8 port, male M26x1.5 rod thread, and an integrated magnet.
Quick checklist
At 0.5 MPa it provides 3927 N push and 3524.9 N pull. At 0.7 MPa it provides 5497.8 N push and 4934.8 N pull. The theoretical maximum push is 801 kgf at 1.0 MPa.
The M27x2.0 screw shortens the extend stop by up to 20 mm, yielding a usable extend range of 0 to 15 mm. The included -S magnet works with AirTAC reed or electronic switches for position sensing.
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