Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-30B
The AirTAC Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-30B is a genuine double-acting COMPACT cylinder (Ø40mm bore) whose extend end-position is set by an external M12×1.25 adjustment screw. You can dial the stroke anywhere from 45 to 75 mm on the machine — no shims, no part change.
- BoreØ40 mm
- Max stroke75 mm
- Adjustable range45–75 mm
- Adjuster threadM12×1.25
- 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 SDAJ40X75-30B
The AirTAC SDAJ40X75-30B is a compact double-acting single-rod cylinder featuring an external extend stop. An M12x1.25 adjustment screw lets you dial the outward stroke down from 75 mm to 45 mm directly on the machine, avoiding part swaps. Because the adjuster sets the mechanical stop rather than the piston area, output force remains identical to a standard SDA40, delivering 628.3 N push at 0.5 MPa.
This variant uses a male M14x1.5 piston rod thread and a PT1/8 air port. Its short riveted body saves axial mounting depth where a longer cylinder will not fit. End shock is handled by a fixed NBR bumper, which decelerates the stroke but is not an adjustable air cushion. Note this SKU lacks a piston magnet, so it cannot host reed or electronic switches.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-30B Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-30B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Max stroke | 75 mm |
| Adjustable range | 45 – 75 mm |
| Adjuster thread (R) | M12×1.25 |
| Port size | PT1/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M8×1.25 F / M14×1.5 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 30 mm. Force is unchanged from a standard SDA of the same bore. Specifications follow the official AirTAC SDAJ datasheet.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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.
Model Code: Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-30B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 40 | Bore size in mm. |
| ×75 | Maximum stroke length in mm. |
| -30 | 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 SDAJ40X75-30B Is Used
Tooling Changeover
Dial the extend stop from 45 to 75 mm during fixture swaps to accommodate varying part heights without machining new spacers.
Flap Sealing
Set the exact 50 mm push depth for carton sealing heads, leveraging the 628.3 N force to fold heavy corrugated flaps cleanly.
Vertical Lift Stops
Adjust the downward travel precisely for a 32 kg vertical lift rig, ensuring the male M14x1.5 rod seats fully without slamming.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-30B the Right Cylinder?
When sizing this 40 mm bore, look at both neighbours. Dropping down to an SDAJ32 yields 402.1 N push at 0.5 MPa, while stepping up to an SDAJ50 provides 981.7 N. This model delivers a safe working load of roughly 377 N (about 60 percent of its 0.5 MPa rating) and can vertically lift around 32 kg with a 2:1 safety margin. Choose it when you need on-site stroke tuning between 45 and 75 mm.
Confirm the PT1/8 port, the 30 mm adjustment window, and the male M14x1.5 rod thread suit your tooling. A plain cylinder does not hold its load on air loss or valve centring; the piston drifts and the fixed bumper only decelerates near the end. For secure load holding without live pressure, install an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 45–75 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 M12×1.25 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 SDAJ40X75-30B FAQ
At 0.5 MPa this 40 mm bore cylinder provides 628.3 N push and 527.8 N pull. At 0.7 MPa it provides 879.6 N push and 738.9 N pull. The theoretical maximum push is 128 kgf at 1.0 MPa.
Turning the M12x1.25 R screw shortens the extend end position by up to 30 mm, giving a usable outward range of 45 to 75 mm. The retract stroke remains full. This SKU has no piston magnet, so it cannot accept sensing switches.
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Standard models are processed and dispatched in 3-5 business days.
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