
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X80-20B 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 60 to 80 mm on the machine — no shims, no part change.
The AirTAC SDAJ100X80-20B is a double-acting, single-rod compact cylinder featuring an external adjustable extend stop. By turning the R (M27x2.0) screw, you can dial the forward stroke down by up to 20 mm directly on the machine, yielding a usable extend range of 60 to 80 mm without swapping shims or parts. The retract motion remains full length. Because the adjuster only sets the mechanical stop position rather than altering the piston area, output force equals a standard SDA of this bore, delivering 3927 N of push at 0.5 MPa.
Designed to save axial mounting depth where larger profile or round-body units fail to fit, this riveted-body actuator occupies a minimal footprint while handling heavy loads. It features a fixed NBR bumper at each end to decelerate the stroke end; this is not an adjustable air cushion, so for high-energy cycles you should slow the approach or add an external shock absorber. This specific SKU includes a male M26x1.5 piston rod thread and ships without a piston magnet, meaning it cannot host reed or electronic switches.
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X80-20B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 80 mm |
| Adjustable range | 60 – 80 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. |
| ×80 | 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 in the 60-80 mm extend stop on the fly to set precise pressing depth for heavy bearings without changing out hard stops.
Lift loads up to 200.2 kg with a 2:1 margin, using the male M26x1.5 rod for robust mounting in elevated material handling.
Fit high-force 3927 N actuation into tight machine frames where standard cylinders exceed the allowable axial footprint.
When sizing this 100 mm bore actuator, evaluate your force requirements bidirectionally. Stepping down to an SDAJ80 yields 2513.3 N of push at 0.5 MPa, which may undershoot heavy pressing demands. If you require less force to avoid over-stressing tooling, the 80 mm bore provides a safer edge. The 100 mm bore provides a safe working load of roughly 2356 N (about 60 percent of the 3927 N figure at 0.5 MPa), translating to a vertical lift capacity of approximately 200.2 kg with a 2:1 safety margin.
This model is ideal for operators needing on-site stroke tuning during setup or tooling changeovers. Remember that a plain compact cylinder does not hold its load if air pressure drops or the valve centers; the piston will drift, and the fixed bumper only decelerates near the end of travel—it is never a lock. For suspended or vertical loads, integrate an external rod lock or pilot-operated check valve. Confirm your bore, 80 mm maximum stroke, 20 mm adjust window, PT3/8 port, male M26x1.5 rod, and lack of magnet before ordering.
Quick checklist
This 100 mm bore cylinder features a PT3/8 air port. It generates 3927 N push and 3524.9 N pull at 0.5 MPa, 5497.8 N push and 4934.8 N pull at 0.7 MPa, and a theoretical maximum of 801 kgf at 1.0 MPa.
The R (M27x2.0) screw mechanically shortens the extend stop from the 80 mm maximum down to 60 mm. It does not alter force or lock mid-stroke. This SKU uses a male M26x1.5 piston rod thread and lacks a piston magnet, so it cannot support magnetic switches.
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