Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X65-40B
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X65-40B 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 25 to 65 mm on the machine — no shims, no part change.
- BoreØ40 mm
- Max stroke65 mm
- Adjustable range25–65 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 SDAJ40X65-40B
The AirTAC SDAJ40X65-40B is a double-acting compact cylinder featuring an external M12x1.25 adjustment screw that lets you dial the extend stop anywhere between 25 and 65 mm directly on the machine. This specific SKU uses a male M14x1.5 piston rod thread for direct mounting.
Its short riveted body saves valuable axial mounting depth where round-body or larger profile cylinders cannot fit. End-of-stroke deceleration is handled by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion. Note that this non-magnet variant cannot support position sensing; adding the -S option enables reed or electronic switches.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X65-40B Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X65-40B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Max stroke | 65 mm |
| Adjustable range | 25 – 65 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 SDAJ40X65-40B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 40 | Bore size in mm. |
| ×65 | 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 SDAJ40X65-40B Is Used
Tooling Changeover
Dial the extend stop from 25 to 65 mm during product family swaps to set new pressing depths without machining custom spacers.
Variable Carton Sealing
Accommodate fluctuating flap heights on a packaging line by tweaking the M12x1.25 adjuster, maintaining 628.3 N of firm clamping force.
Trial Bend Positioning
Iterate material bend angles safely during prototype runs by shortening the extend stroke in fine increments before finalizing the mechanical stop.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X65-40B the Right Cylinder?
Choose this male-rod (-B), non-magnet model when you need robust tool mounting and on-site stroke tuning without re-engineering fixtures.
Remember that a plain SDAJ does not hold position if air pressure drops or the valve centers—the piston will drift. The fixed bumper only decelerates near the end of travel and the R screw is a mechanical stop, not a lock. For suspended or vertical loads, install an external rod lock or pilot-operated check valve. Confirm your required extend window (25-65 mm), the PT1/8 port, and the M14x1.5 male rod thread before ordering.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 25–65 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 SDAJ40X65-40B FAQ
Operating pressure is 0.15-1.0 MPa, proof pressure is 1.5 MPa, and speed ranges from 30-500 mm/s.
Turning the external R (M12x1.25) screw shortens the extend stroke by up to 40 mm, giving a usable range of 25-65 mm without changing parts. Because this specific SKU lacks the -S magnet option, it cannot accept reed or electronic switches; you must select the -S variant for position sensing.
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