Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X70-40B
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X70-40B 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 30 to 70 mm on the machine — no shims, no part change.
- BoreØ40 mm
- Max stroke70 mm
- Adjustable range30–70 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 SDAJ40X70-40B
The AirTAC SDAJ40X70-40B is a double-acting compact cylinder featuring an external M12x1.25 adjustment screw that lets you dial the extend stop directly on your machine between 30 and 70 mm. This SKU uses a male M14x1.5 piston rod thread and lacks a piston magnet.
Its short riveted body drastically reduces axial mounting depth compared to traditional round-body options, fitting easily into tight machinery envelopes. End-of-stroke deceleration is handled by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion. Operating pressure ranges from 0.15 to 1.0 MPa, with a speed capability of 30-500 mm/s.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X70-40B Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X70-40B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Max stroke | 70 mm |
| Adjustable range | 30 – 70 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 40 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 SDAJ40X70-40B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 40 | Bore size in mm. |
| ×70 | Maximum stroke length in mm. |
| -40 | 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 SDAJ40X70-40B Is Used
Variable Depth Sealing
Adjust the mechanical stop on-site for different carton depths, letting the fixed NBR bumper absorb the end shock while maintaining consistent sealing pressure.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X70-40B the Right Cylinder?
Choose this specific unit when your fixture requires on-site stroke tuning across a 40 mm window without swapping parts.
This configuration includes the -B option, meaning it has a male M14x1.5 rod end instead of the default female thread. Note that this SKU omits the -S magnet, so it cannot accept reed or electronic switches. Remember that a plain cylinder does not hold position if air pressure drops or the valve centres; the fixed bumper only decelerates near the end of travel. For suspended or vertical loads, install an external rod lock or pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 30–70 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 SDAJ40X70-40B FAQ
This 40 mm bore cylinder features a PT1/8 air port.
Turning the external R (M12x1.25) screw mechanically shortens the extend stroke by up to 40 mm, allowing you to set the end position anywhere between 30 and 70 mm. This adjusts the stop only and does not alter the output force.
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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.
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Most inquiries answered within 7-8 hours.
Related AirTAC SDAJ Cylinders
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