Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-20
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-20 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 SDAJ40X75-20
The AirTAC SDAJ40X75-20 is a double-acting compact cylinder featuring an external M12x1.25 adjustment screw that dials the extend stop directly on your machine. You can tune the forward stroke anywhere between 55 and 75 mm without swapping shims or parts, making it ideal for setups requiring frequent positional tweaks. The retract motion remains at the full length.
The short riveted body saves valuable axial mounting depth where larger profile cylinders cannot fit. End shock is handled by a fixed NBR bumper rather than an adjustable air cushion.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-20 Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-20 |
|---|---|
| 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 SDAJ40X75-20
| 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 SDAJ40X75-20 Is Used
Machining Clamp Depth
Dial the extend stop from 55 to 75 mm to perfectly seat clamps on castings of varying widths without reprogramming the motion controller.
Carton Flap Folding
Fine-tune the folding arm position on the fly during size changeovers, using the mechanical stop to maintain consistent folding force.
Tiered Pallet Stops
Adjust the downward extend endpoint in 1 mm increments to create precise mechanical stops for different pallet layer heights.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-20 the Right Cylinder?
Choose this exact configuration if your fixture needs on-site stroke tuning across a 20 mm window. Confirm your porting matches the bore-fixed PT1/8 thread, and note this specific SKU lacks a magnet (-S) so it cannot host reed or electronic switches. Remember that a plain cylinder drifts on air loss; the fixed bumper only decelerates the end of travel and is not a lock, so add an external rod lock or pilot-operated check valve if you must hold a load vertically without live pressure.
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 SDAJ40X75-20 FAQ
Turning the external M12x1.25 screw mechanically shortens the extend endpoint from the 75 mm maximum down to 55 mm. It sets the physical stop position without altering the pneumatic force, and retract remains at the full stroke length.
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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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