Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X90-50B
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X90-50B 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 40 to 90 mm on the machine — no shims, no part change.
- BoreØ32 mm
- Max stroke90 mm
- Adjustable range40–90 mm
- Adjuster threadM10×1.25
- Port sizePT1/8
- CushionFixed NBR bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X90-50B
The AirTAC SDAJ32X90-50B is a compact double-acting double-rod cylinder built for on-site extend positioning. An external M10x1.25 adjuster screw lets you dial the forward stop anywhere between 40 and 90 mm, eliminating the need for shims or part swaps during machine commissioning.
This variant features a male M10x1.25 piston rod thread and lacks a piston magnet, meaning it cannot accept magnetic switches without switching to the -S option. The short riveted body minimizes axial mounting depth where space is tight, while a fixed NBR bumper decelerates the stroke end. Note that this bumper is not an adjustable air cushion, nor does it lock the load if air pressure drops.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X90-50B Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X90-50B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Max stroke | 90 mm |
| Adjustable range | 40 – 90 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.
Theoretical Output Force (Ø32mm)
| 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.
Model Code: Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X90-50B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 32 | Bore size in mm. |
| ×90 | 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).
Where the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X90-50B Is Used
Tooling Changeover
Dial the extend stop from 40 to 90 mm via the M10x1.25 screw to accommodate different part heights on a machining line without machining new spacers.
Flap Folding
Adjust the mechanical stop on-site to vary the tuck depth for varying carton sizes, relying on the fixed NBR bumper to absorb the end shock.
Press Fit Tuning
Fine-tune the forward position during assembly commissioning to find the exact seating depth, operating safely within the 241 N working load limit.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X90-50B the Right Cylinder?
Stepping down, the SDAJ25 yields 245.4 N at 0.5 MPa, which may be insufficient for moderate loads; stepping up, the SDAJ40 provides 628.3 N at 0.5 MPa for heavier duty.
Choose this specific model if your fixture requires frequent changeovers or trial positioning within the 40-90 mm window. Confirm your setup requires the male M10x1.25 rod end and the PT1/8 port. Remember that a plain SDAJ does not hold position when air is lost or the valve is centered—the piston will drift. For load holding without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 40–90 mm
- ✓ Force at your working pressure
- ✓ Access to reach the R adjuster
- ✓ Magnet (S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Lock the M10×1.25 adjuster after setting the stroke.
- check Avoid side load on the piston rod.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X90-50B FAQ
At 0.7 MPa, push increases to 563 N and pull to 483.8 N. The theoretical maximum push is 82 kgf at 1.0 MPa.
Turning the external R (M10x1.25) screw shortens the extend stroke by up to 50 mm, allowing the rod to stop anywhere between 40 and 90 mm. The retract stroke remains full, and the adjuster acts as a mechanical stop, not a mid-stroke lock.
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