
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X120-75B 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 120 mm on the machine — no shims, no part change.
The AirTAC SDAJ100X120-75B is a compact double-acting single-rod cylinder built for heavy-duty positioning where the extend endpoint must be dialed in on the machine. An external R (M27x2.0) screw lets you shorten the forward stroke by up to 75 mm, yielding a usable extend range of 45 to 120 mm without changing parts or shims. 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 100 mm bore unit features a male-threaded M26x1.5 piston rod and a PT3/8 air port. Its short riveted body drastically reduces axial mounting depth compared to conventional round-body or profile cylinders, fitting heavy actuators into tight machine footprints. The unit relies on a fixed NBR bumper at each end to absorb end-of-stroke shock, meaning it is not an adjustable air cushion. Operating speed spans 30 to 500 mm/s across a 0.15 to 1.0 MPa pressure range.
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X120-75B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 120 mm |
| Adjustable range | 45 – 120 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 75 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. |
| ×120 | Maximum stroke length in mm. |
| -75 | 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).
Dialing the extend stop down to 45 mm allows precise insertion of heavy bearings at a safe 2356 N working load, preventing over-travel on high-tonnage press lines.
Adjust the forward stroke on the fly between 45 and 120 mm to handle different pallet sizes on a single conveyor line without physically swapping actuator bodies.
Lifting loads up to 200.2 kg with a 2:1 margin, the fixed NBR bumper absorbs the end shock when raising heavy platens, though an external check valve is needed to hold the load.
When sizing this model, look both directions: stepping down to an SDAJ80 yields 2513.3 N of push at 0.5 MPa, whereas this 100 mm bore provides 3927 N. That extra capacity translates to a safe working load of roughly 2356 N (about 60 percent of the 0.5 MPa push figure) and a vertical lift capability near 200.2 kg with a 2:1 safety margin. Choose this specific configuration when your fixture requires on-site stroke tuning between 45 and 120 mm to accommodate multiple product formats without swapping hardware.
Confirm the bore (100 mm), full stroke (120 mm), and adjustment window (75 mm) match your spatial envelope. This SKU includes the -B option, meaning a male M26x1.5 rod end, and lacks the -S magnet, so it cannot host reed or electronic switches. Remember that a plain compact cylinder does not hold position or load when air is lost or the valve is centered; the fixed bumper only decelerates near the end of travel. For load holding without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This 100 mm bore double-acting cylinder provides 3927 N push and 3524.9 N pull at 0.5 MPa, or 5497.8 N push and 4934.8 N pull at 0.7 MPa. The theoretical maximum push is 801 kgf at 1.0 MPa. It uses a PT3/8 air port and a 32 mm piston rod.
The external M27x2.0 adjuster screw mechanically shortens the extend stroke by up to 75 mm, allowing you to set the forward endpoint anywhere between 45 and 120 mm. This -B variant features a male M26x1.5 rod thread. Note that this SKU lacks a piston magnet, so it cannot support position sensing.
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