The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X20-10B 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 10 to 20 mm on the machine — no shims, no part change.
The AirTAC SDAJ100X20-10B is a double-acting compact cylinder featuring an external adjustable extend stop. By turning the R (M27x2.0) screw, you can dial the extend end-position down from the 20mm maximum to 10mm directly on the machine, avoiding part swaps or shims. Because the adjuster only sets the mechanical stop rather than altering the piston area, output force remains identical to a standard SDA of this bore, delivering 3927 N of push at 0.5 MPa.
This 100mm bore unit saves valuable axial mounting depth through its short riveted body, fitting where round-body alternatives cannot. It uses a PT3/8 air port and a male M26x1.5 piston rod thread (option B). End-of-stroke deceleration is handled by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion. This specific SKU lacks a piston magnet, so it cannot host reed or electronic switches without upgrading to the -S variant.
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X20-10B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 20 mm |
| Adjustable range | 10 – 20 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 10 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. |
| ×20 | Maximum stroke length in mm. |
| -10 | 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 20mm down to 10mm during press commissioning to set exact contact depth without machining new spacers.
Lift loads up to 200.2 kg safely using the 3927 N push force, relying on the fixed NBR bumper to absorb end-of-stroke shock.
Install the compact riveted body in tight machine frames where axial space is restricted, using the male M26x1.5 rod for secure tool mounting.
When sizing this actuator, evaluate both neighbouring bores. Dropping down to the SDAJ80 yields 2513.3 N of push at 0.5 MPa, which is likely insufficient for heavy pressing, whereas the 100mm bore provides a robust 3927 N. Moving up would require a custom or larger profile, so this model represents the top standard compact option. A computed safe working load is roughly 2356 N, equating to about 60% of the 0.5 MPa push figure, allowing a vertical lift of approximately 200.2 kg with a 2:1 safety margin.
Choose this configuration if your fixture requires precise on-site stroke tuning between 10 and 20 mm. Confirm your setup needs the male M26x1.5 rod end, the PT3/8 port, and the 10mm adjustment window. Remember that a plain SDAJ does not hold position if air pressure drops or the valve centres; the piston will drift. For suspended or vertical loads, integrate an external rod lock or a pilot-operated check valve, as the fixed NBR bumper only decelerates near the stroke end and acts purely as a mechanical stop.
Quick checklist
At 0.5 MPa this 100mm bore cylinder provides 3927 N of push and 3524.9 N of pull. At 0.7 MPa, push increases to 5497.8 N and pull to 4934.8 N. The theoretical maximum push is 801 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa, with a speed of 30-500 mm/s.
The external R (M27x2.0) screw mechanically shortens the extend stroke by up to 10mm, allowing you to set the end position anywhere between 10 and 20mm. This SKU does not include a piston magnet, so it cannot accept reed or electronic switches; you must select the -S variant for position sensing.
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