Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-20S
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-20S 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 55 to 75 mm on the machine — no shims, no part change.
- BoreØ40 mm
- Max stroke75 mm
- Adjustable range55–75 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 SDAJ40X75-20S
The AirTAC SDAJ40X75-20S is a compact double-acting double-rod cylinder featuring an external extend stop. An M12x1.25 adjuster screw lets you dial the outward end-position anywhere between 55 and 75 mm directly on your machine, eliminating the need for shims or part swaps.
This thin riveted-body design saves valuable axial mounting depth where round-body or profile cylinders will not fit. It operates at 30-500 mm/s and relies on a fixed NBR bumper at each end to decelerate the stroke. Equipped with a built-in piston magnet (-S), it supports AirTAC reed or electronic solid-state switches for precise end-of-travel signaling.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-20S Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-20S |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Max stroke | 75 mm |
| Adjustable range | 55 – 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 20 mm. SDAJ is a double-rod cylinder. Specifications follow the official AirTAC SDAJ datasheet.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | — |
| Max (@1.0 MPa) | 108 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 SDAJ40X75-20S
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 40 | Bore size in mm. |
| ×75 | Maximum stroke length in mm. |
| -20 | 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 SDAJ40X75-20S Is Used
Carton Flappers
Adjust the outward stroke on the fly to fold different box heights, relying on the fixed NBR bumper to absorb the 30-500 mm/s travel impact.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-20S the Right Cylinder?
Stepping down, the SDAJ32 provides 402.1 N at 0.5 MPa, whereas stepping up to the SDAJ50 yields 981.7 N.
Choose this specific unit when your fixture requires frequent on-site stroke tuning across a 55-75 mm window. It features a 16 mm rod, a PT1/8 port, and female M8x1.25 rod-end threads. Note that a plain 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, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 55–75 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 SDAJ40X75-20S FAQ
The M12x1.25 adjuster screw shortens the extend stroke by up to 20 mm, yielding a usable 55-75 mm range. The included -S magnet enables position detection using AirTAC reed or electronic switches.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SDAJ Cylinders
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