
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X65-20SB 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 45 to 65 mm on the machine — no shims, no part change.
The AirTAC SDAJ100X65-20SB is a compact double-acting single-rod cylinder featuring an external adjustable extend stop. By turning the R (M27x2.0) screw, you can dial the forward end-position anywhere between 45 and 65 mm directly on the machine without changing parts. Because the adjuster sets the mechanical stop rather than the piston area, output force remains identical to a standard SDA of this bore, delivering 3927 N of push at 0.5 MPa.
This unit includes a built-in piston magnet (-S) for AirTAC reed or electronic switches and a male-thread piston rod (-B, M26x1.5) for secure tooling attachment. Its short riveted body drastically reduces axial mounting depth compared to conventional round-body designs, fitting into tight machinery envelopes. End-of-stroke deceleration is handled by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion.
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X65-20SB |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 65 mm |
| Adjustable range | 45 – 65 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. |
| ×65 | 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 45-65 mm extend stop on the R screw to perfect the seating depth of heavy bearings without machining new spacers.
Leverage the 3927 N push at 0.5 MPa to hold thick steel plates, making micro-adjustments to the jaw opening during product changeovers.
Raise a 200.2 kg payload using the male M26x1.5 rod, setting the exact lift height while relying on an external check valve for safety.
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 is insufficient if you need the full 3927 N generated by this unit. Stepping up is not available in this compact family, making this the maximum thrust option. The 3927 N output at 0.5 MPa translates to a safe working load of roughly 2356 N (about 60 percent of capacity) or a vertical lift of approximately 200.2 kg with a 2:1 safety margin.
This model is ideal for heavy setups requiring frequent on-site stroke tuning between 45 and 65 mm. Remember that a plain cylinder does not hold its load upon air loss or valve centering; the piston will drift. For suspended or vertical loads, integrate an external rod lock or a pilot-operated check valve. Configuration confirmed: 100 mm bore, 65 mm max stroke, 20 mm window, PT3/8 port, -S magnet, and -B male M26x1.5 rod.
Quick checklist
This 100 mm bore cylinder generates 3927 N push and 3524.9 N pull at 0.5 MPa. 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 adjuster screw mechanically shortens the extend stroke from the 65 mm maximum down to 45 mm without altering the force. The built-in -S magnet allows you to mount AirTAC reed or electronic solid-state switches directly into the body sensor grooves for position detection.
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