Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X80-50B
The AirTAC Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X80-50B 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 80 mm on the machine — no shims, no part change.
- BoreØ40 mm
- Max stroke80 mm
- Adjustable range30–80 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 SDAJ40X80-50B
The AirTAC SDAJ40X80-50B is a compact double-acting single-rod cylinder built for on-site extend tuning. An external M12x1.25 adjuster screw lets you dial the outward stop anywhere between 30 and 80 mm, eliminating the need for shims or part swaps during machine commissioning. Because the adjuster sets the mechanical stop rather than the piston area, output force remains identical to a standard SDA of this bore, delivering 628.3 N of push at 0.5 MPa.
This variant features a male M14x1.5 piston rod thread and a short riveted body that conserves axial mounting depth where larger profile cylinders cannot fit. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion. Note that this specific SKU lacks a piston magnet, so it cannot support reed or electronic sensing without switching to the -S option.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X80-50B Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X80-50B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Max stroke | 80 mm |
| Adjustable range | 30 – 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 50 mm. Force is unchanged from a standard SDA of the same bore. Specifications follow the official AirTAC SDAJ datasheet.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Force matches a standard SDA of the same bore; the adjuster only sets the stop position, not the area. Actual usable force is lower than theoretical due to friction.
Model Code: Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X80-50B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 40 | Bore size in mm. |
| ×80 | Maximum stroke length in mm. |
| -50 | 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 SDAJ40X80-50B Is Used
Tooling Depth Calibration
Dial in the exact 30 to 80 mm extend stop during initial setup to seat forming tools precisely without machining custom spacers.
Carton Flap Folding
Adjust the mechanical stop on the fly to accommodate varying box heights on a packaging line while maintaining 628.3 N of extend force.
Vertical Lift Stops
Safely raise loads up to 32 kg using the male M14x1.5 rod, tweaking the extend endpoint to prevent over-travel into upper fixtures.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X80-50B the Right Cylinder?
When sizing this 40 mm bore, compare the thrust against your actual load requirements. Stepping down to an SDAJ32 yields 402.1 N of push at 0.5 MPa, whereas stepping up to an SDAJ50 provides 981.7 N. Based on the 628.3 N output here, a safe working load is roughly 377 N (about 60 percent of capacity), translating to a vertical lift capability of approximately 32 kg with a 2:1 safety margin.
Choose this male-rod (-B) configuration when your tooling requires an externally threaded M14x1.5 attachment point. The on-site adjustability is ideal for trial positioning and frequent changeovers. Remember that a standard cylinder does not hold position if air pressure drops or the valve centers; for load holding without live pressure, integrate an external rod lock or pilot-operated check valve. Confirm your requirements for the 80 mm maximum stroke, 50 mm window, PT1/8 port, and lack of a magnet.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 30–80 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 SDAJ40X80-50B FAQ
This 40 mm bore cylinder features a PT1/8 port and generates 628.3 N push / 527.8 N pull at 0.5 MPa, and 879.6 N push / 738.9 N pull at 0.7 MPa. The theoretical maximum push force is 128 kgf at 1.0 MPa.
The M12x1.25 adjuster screw mechanically shortens the extend stroke by up to 50 mm, allowing on-machine tuning between 30 and 80 mm. This specific SKU lacks a piston magnet, so you cannot mount reed or electronic switches unless you select the -S magnet option.
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