
The AirTAC Airtac SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ50X110-75B is a genuine double-acting COMPACT cylinder (Ø50mm bore) whose extend end-position is set by an external M16×1.5 adjustment screw. You can dial the stroke anywhere from 35 to 110 mm on the machine — no shims, no part change.
The AirTAC SDAJ50X110-75B is a compact double-acting cylinder featuring an external M16x1.5 adjustment screw that lets you dial the extend stop anywhere between 35 and 110 mm directly on your machine. Because the adjuster sets the mechanical stop rather than altering the piston area, output force remains identical to a standard SDA of this bore, giving you about 981.7 N of push at 0.5 MPa. This specific SKU uses a male M18x1.5 piston rod thread for straightforward external mounting.
Its short riveted body drastically reduces axial mounting depth compared to round-body alternatives, fitting into tight machine footprints. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning the stop absorbs shock but does not act as a mid-stroke lock or brake. Note that this base configuration lacks a piston magnet, so it cannot host reed or electronic switches without upgrading to the -S variant.
| Model | Airtac SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ50X110-75B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø50 mm |
| Max stroke | 110 mm |
| Adjustable range | 35 – 110 mm |
| Adjuster thread (R) | M16×1.5 |
| Port size | PT1/4 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M10×1.5 F / M18×1.5 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 | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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. |
|---|---|
| 50 | Bore size in mm. |
| ×110 | 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).
Dial the 35-110 mm extend stop to secure raw castings of varying widths, using the 981.7 N push force to hold parts firmly against the locator without reprogramming the PLC.
Adjust the male M18x1.5 rod extension on the fly to match different box heights, letting the fixed NBR bumper absorb the repetitive end-of-stroke shock during high-speed sealing cycles.
Set precise mechanical lower limits for multi-layer pallet builds, relying on the compact riveted body to fit within narrow gantry clearances where space is at a premium.
When sizing this 50 mm bore, look both directions: stepping down to the SDAJ40 yields 628.3 N of push at 0.5 MPa, while stepping up to the SDAJ63 provides 1558.6 N. This SDAJ50X110-75B sits comfortably in the middle, delivering a safe working load of roughly 589 N (about 60 percent of its 981.7 N capacity) and a vertical lift capability near 50 kg with a 2:1 safety margin. Choose this model if your fixture design requires frequent on-site stroke tuning to accommodate varying part heights without swapping components.
Verify your setup requires the 110 mm maximum extend and the 75 mm adjustable window, along with the PT1/4 air port. Since this SKU includes the -B option, ensure your tooling mates with the male M18x1.5 rod end and that side loading is minimized. Remember that a plain cylinder drifts when air is lost or the valve centers; the fixed bumper only decelerates near the end of travel. For strict load holding without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This 50 mm bore double-acting cylinder delivers 981.7 N push and 824.7 N pull at 0.5 MPa, 1374.4 N push and 1154.5 N pull at 0.7 MPa, with a theoretical maximum of 200 kgf at 1.0 MPa. It operates between 0.15 and 1.0 MPa, handles speeds of 30-500 mm/s, and functions in temperatures from -20 to +70 C.
Turning the external M16x1.5 screw mechanically shortens the extend stroke by up to 75 mm, giving a usable range of 35 to 110 mm without altering the output force. This specific -B configuration lacks a piston magnet, so it cannot accept AirTAC reed or electronic switches; you would need the -S variant for position sensing.
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