Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X80-20B
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X80-20B 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 60 to 80 mm on the machine — no shims, no part change.
- BoreØ40 mm
- Max stroke80 mm
- Adjustable range60–80 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 SDAJ40X80-20B
The AirTAC SDAJ40X80-20B is a double-acting compact cylinder featuring an external adjustable extend stop. An M12x1.25 adjuster screw lets you dial the outward stroke down by 20 mm directly at the machine, yielding a usable extend range of 60 to 80 mm without swapping shims or parts.
The short riveted body drastically reduces axial mounting depth where a larger profile or round-body unit will not fit. This specific SKU includes a male M14x1.5 piston rod thread and lacks a piston magnet, meaning magnetic switches cannot be used unless you specify the -S variant. End-of-travel deceleration is handled strictly by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X80-20B Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X80-20B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Max stroke | 80 mm |
| Adjustable range | 60 – 80 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 SDAJ40X80-20B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 SDAJ40X80-20B Is Used
Machining Clamp Depth
Dial the M12x1.25 screw to set the extend between 60 and 80 mm, ensuring a 628.3 N clamping force hits the part without over-compressing fragile castings.
Package Divert Stroke
Fine-tune the male M14x1.5 rod extension on-site to accommodate varying box widths, relying on the fixed NBR bumper to absorb the stop impact.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X80-20B the Right Cylinder?
Choose this model if your fixture requires on-site stroke tuning during changeovers.
Confirm the 80 mm maximum stroke, 20 mm adjustment window, and PT1/8 air port match your pneumatic layout. This SKU uses a male M14x1.5 rod end and has no magnet. Remember that a standard cylinder drifts when air is lost or the valve centres—the fixed bumper only decelerates near the end and the R screw acts as a mechanical stop, not a lock. For suspended loads, install an external rod lock or pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 60–80 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 SDAJ40X80-20B FAQ
The theoretical maximum push is 128 kgf at 1.0 MPa.
The M12x1.25 screw mechanically shortens the extend stroke from the 80 mm maximum down to 60 mm. It does not alter force and is not a mid-stroke lock. Because this SKU lacks a -S magnet, it cannot accept magnetic switches.
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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.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SDAJ Cylinders
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