
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-50B is a genuine double-acting COMPACT cylinder (Ø32mm bore) whose extend end-position is set by an external M10×1.25 adjustment screw. You can dial the stroke anywhere from 35 to 85 mm on the machine — no shims, no part change.
The AirTAC SDAJ32X85-50B is a double-acting compact cylinder featuring a male-thread piston rod and an external extend stop. A built-in M10x1.25 adjuster screw lets you dial the extend position anywhere between 35 and 85 mm directly on your equipment, eliminating the need for shims or part swaps during changeovers. Retract travel remains full length.
The short riveted body minimizes axial mounting depth where space is tight. End shock is handled by a fixed NBR bumper, which decelerates the piston but is not an adjustable air cushion.
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X85-50B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Max stroke | 85 mm |
| Adjustable range | 35 – 85 mm |
| Adjuster thread (R) | M10×1.25 |
| Port size | PT1/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M6×1.0 F / M10×1.25 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. SDAJ is a double-rod cylinder. Specifications follow the official AirTAC SDAJ datasheet.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 346 N | 346 N |
| 0.7 MPa | 484 N | — |
| Max (@1.0 MPa) | 70 kgf | |
SDAJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative), lower than a single-rod SDA push of the same bore. Actual usable force is lower than theoretical due to friction.
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 32 | Bore size in mm. |
| ×85 | 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 in the exact 35-85 mm extend reach for varying part sizes during machine tending changeovers without machining new spacers.
Trial-fit bearings or pins by adjusting the M10x1.25 screw on-site to find the perfect depth before locking down the cycle.
If you need less force, the smaller SDAJ25 provides 245.4 N, while stepping up to the SDAJ40 yields 628.3 N.
This SKU includes a male M10x1.25 rod thread and lacks a piston magnet, so it cannot accept reed or electronic switches. Note that a plain cylinder does not hold position if air pressure drops or the valve centers; the fixed bumper only decelerates near the end of travel. For secure load holding without live pressure, install an external rod lock or pilot-operated check valve. Confirm your required 35-85 mm adjust window, PT1/8 port, and 30-500 mm/s speed range fit the application.
Quick checklist
Turning the R (M10x1.25) screw mechanically shortens the extend stroke by up to 50 mm, giving a usable range of 35 to 85 mm. It sets the stop position only and does not alter force or lock the piston mid-stroke.
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