
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X50-40S 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 50 mm on the machine — no shims, no part change.
The AirTAC SDAJ100X50-40S is a compact double-acting single-rod cylinder engineered for heavy-duty positioning where the extend endpoint must be dialed in on the machine. An external R (M27x2.0) adjustment screw shortens the forward stroke by up to 40 mm, yielding a usable extend range of 10 to 50 mm without swapping shims or parts. Retract remains full length. Because the adjuster sets the mechanical stop rather than altering the piston area, output force equals a standard SDA of this bore, delivering 3927 N of push at 0.5 MPa.
This 100 mm bore unit features a short riveted body that saves axial mounting depth in tight fixtures, accepting standard AirTAC compact-cylinder accessories. The 32 mm piston rod uses an M18x1.5 female rod-end thread and a PT3/8 port. End-of-travel deceleration relies on a fixed NBR bumper, which is not an adjustable air cushion or a locking brake. The integrated piston magnet supports AirTAC reed or electronic solid-state switches for position sensing.
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X50-40S |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 50 mm |
| Adjustable range | 10 – 50 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 40 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. |
| ×50 | Maximum stroke length in mm. |
| -40 | 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).
Perfect for heavy press operations needing exact endpoint control, using the M27x2.0 screw to set the 10 to 50 mm forward stop while applying 3927 N of thrust at 0.5 MPa.
Enables rapid format adjustments on automated lines, letting operators twist the external adjuster to shift the extend position without changing hardware for different product runs.
Ideal for lifting 200.2 kg loads with a 2:1 safety margin, where the mechanical stop ensures the lift height is precisely capped between 10 and 50 mm.
When sizing this model, evaluate both neighboring bores. Dropping to an SDAJ80 reduces the 0.5 MPa push to 2513.3 N, whereas this 100 mm bore provides 3927 N. For load validation, a safe working load is roughly 2356 N (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 specific unit if your fixture requires on-site stroke tuning across a 10 to 50 mm window.
Confirm the 100 mm bore, 50 mm max stroke, 40 mm adjust window, PT3/8 port, and the built-in magnet (S) for switch readiness. Note that the rod thread is female M18x1.5. Remember that a plain SDAJ does not hold a load when air is lost or the valve is centered; the fixed NBR bumper only decelerates near the end of travel. For secure load holding without live pressure, install an external rod lock or a pilot-operated check valve.
Quick checklist
This double-acting cylinder 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, with a theoretical maximum of 801 kgf at 1.0 MPa. It operates between 0.15 and 1.0 MPa at speeds of 30-500 mm/s.
The external R (M27x2.0) screw mechanically limits the extend stroke, shortening it from the 50 mm maximum down to 10 mm without affecting force. The S suffix denotes a built-in piston magnet designed to trigger AirTAC reed or electronic solid-state switches.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
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