
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X70-50B 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 20 to 70 mm on the machine — no shims, no part change.
The SDAJ100X70-50B is a double-acting compact riveted-body cylinder featuring an external extend stop. Turning the R (M27x2.0) adjuster screw lets you dial the outward stroke down from 70 mm to 20 mm directly on the machine, eliminating the need for shims or part swaps. Output matches a standard SDA of this bore, delivering 3927 N of push force at 0.5 MPa.
This 100 mm bore unit uses a PT3/8 port and a male M26x1.5 piston rod. Its short body profile saves axial mounting depth where larger profile or round-body units will not fit. End shock is handled by a fixed NBR bumper, which decelerates the piston near the end of travel rather than acting as an adjustable air cushion.
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X70-50B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 70 mm |
| Adjustable range | 20 – 70 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 50 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. |
| ×70 | Maximum stroke length in mm. |
| -50 | 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 20-70 mm extend stop during initial tooling commissioning to find the exact contact point for high-force press operations without changing parts.
Use the male M26x1.5 rod to secure heavy clamps, relying on the 3927 N push at 0.5 MPa to hold steel assemblies firmly in place.
Lift loads up to 200.2 kg vertically with a 2:1 safety margin, adjusting the outward stroke on the fly to accommodate varying pallet thicknesses.
Choosing this 100 mm bore provides 3927 N push at 0.5 MPa, yielding a safe working load of roughly 2356 N (about 60 percent of capacity) and a vertical lift capability near 200.2 kg with a 2:1 margin. If your application requires less force, sizing down to the SDAJ80 gives 2513.3 N push at 0.5 MPa. Since 100 mm is the largest standard SDA bore, moving beyond this capacity requires a different cylinder family.
Operators needing on-site stroke tuning for trial positioning will benefit from the 20-70 mm adjustable window. This SKU includes the -B option for a male-threaded M26x1.5 rod, but lacks the -S magnet, meaning it cannot host reed or electronic switches. Note that a plain cylinder does not hold position on air loss; the fixed bumper only decelerates near the end, so add an external rod lock or pilot-operated check valve for load holding.
Quick checklist
This 100 mm bore double-acting cylinder uses a PT3/8 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, with a theoretical maximum of 801 kgf at 1.0 MPa.
The R (M27x2.0) screw mechanically shortens the extend stop from the 70 mm maximum down to 20 mm without altering the 3927 N force. The -B code denotes the male M26x1.5 piston rod thread. This unit has no magnet, so it cannot support 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.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.