Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X55-40B
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X55-40B 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 15 to 55 mm on the machine — no shims, no part change.
- BoreØ40 mm
- Max stroke55 mm
- Adjustable range15–55 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 SDAJ40X55-40B
The AirTAC SDAJ40X55-40B is a compact double-acting cylinder with a male-thread piston rod (M14x1.5) and an external extend stop. An M12x1.25 adjuster screw lets you dial the outward stroke from 15 to 55 mm directly on the machine, avoiding part swaps during setup.
Its short riveted body saves axial mounting depth where round-body or profile cylinders will not fit. End shock is handled by a fixed NBR bumper that decelerates the stroke end; it is not an adjustable air cushion. Note this SKU lacks a piston magnet, so it cannot accept reed or electronic switches.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X55-40B Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X55-40B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Max stroke | 55 mm |
| Adjustable range | 15 – 55 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 SDAJ40X55-40B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 40 | Bore size in mm. |
| ×55 | 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 SDAJ40X55-40B Is Used
Tooling Changeover
Dial the 15-55 mm extend stop during fixture swaps to accommodate varying part heights without machining new spacers.
Carton Forming
Set precise downward travel to fold flaps on varying box sizes, relying on the fixed NBR bumper to absorb end shock.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X55-40B the Right Cylinder?
Choose this male-rod (M14x1.5) version if your tooling requires a threaded attachment point.
Engineers needing on-site stroke tuning for frequent changeovers will benefit from the 15-55 mm adjust window. Remember that a plain cylinder does not hold its load on air loss or valve centring—the piston drifts and the fixed bumper only decelerates near the end. For a held load, specify an external rod lock or pilot-operated check valve. Confirm your 40 mm bore, 55 mm stroke, 40 mm window, PT1/8 port, and lack of a magnet (no -S) for this configuration.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 15–55 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 SDAJ40X55-40B FAQ
The M12x1.25 screw shortens the extend stop by up to 40 mm, giving a usable 15-55 mm range. It acts only as a mechanical stop and does not lock the piston; for load holding without live pressure, use an external rod lock or pilot-operated check valve.
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
Request a Quote for Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X55-40B
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.