Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-40
The AirTAC Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-40 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 35 to 75 mm on the machine — no shims, no part change.
- BoreØ40 mm
- Max stroke75 mm
- Adjustable range35–75 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 SDAJ40X75-40
The AirTAC SDAJ40X75-40 is a compact double-acting single-rod cylinder featuring an external adjustable extend stop. By turning the R (M12x1.25) screw, you can dial the forward stroke down from its 75 mm maximum to as low as 35 mm directly on the machine, eliminating the need for shims or part swaps. The short riveted body saves valuable axial mounting depth where a longer profile cylinder will not fit.
Because the adjuster only sets the mechanical stop position, the output force remains identical to a standard SDA of this bore, delivering about 628.3 N push at 0.5 MPa. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, and this specific SKU lacks a piston magnet, so it cannot accept magnetic switches.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-40 Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-40 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Max stroke | 75 mm |
| Adjustable range | 35 – 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 40 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 SDAJ40X75-40
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 SDAJ40X75-40 Is Used
Tooling Changeovers
Dial the extend stop from 75 mm down to 35 mm during fixture swaps, letting one cylinder family serve multiple part depths without machining new spacers.
Transfer Diverters
Fine-tune the pusher endpoint on the fly to accommodate varying carton widths on a packaging line while maintaining a solid 628.3 N push force at 0.5 MPa.
Trial Positioning
Safely probe the optimal reach for a 32 kg vertical lift task, adjusting the mechanical stop in small increments before locking down the final motion sequence.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-40 the Right Cylinder?
When sizing this 40 mm bore unit, compare it both ways: stepping down to an SDAJ32 yields 402.1 N push at 0.5 MPa, while stepping up to an SDAJ50 provides 981.7 N. The 628.3 N output here translates to a safe working load of roughly 377 N (about 60 percent of capacity), or a vertical lift of approximately 32 kg with a 2:1 safety margin. Choose this model if your fixture changeovers require frequent on-site stroke tuning between 35 and 75 mm.
Confirm the required bore, 75 mm max stroke, 40 mm window, and PT1/8 port before ordering. Note that a plain SDAJ does not hold position or carry a load when air is lost or the valve is centred; the fixed NBR bumper only decelerates near the end of travel. For load holding without live pressure, integrate an external rod lock or a pilot-operated check valve. This SKU has no magnet; specify the -S option if you need reed or electronic sensing.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 35–75 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 SDAJ40X75-40 FAQ
This 40 mm bore double-acting cylinder delivers 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push and 738.9 N pull at 0.7 MPa, with a theoretical maximum push of 128 kgf at 1.0 MPa.
Turning the external M12x1.25 R screw shortens the forward stroke by up to 40 mm, providing a usable extend range of 35 to 75 mm. The retract stroke remains full, and the screw acts purely as a mechanical stop, not a mid-stroke lock.
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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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