Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-75
The AirTAC Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-75 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 0 to 75 mm on the machine — no shims, no part change.
- BoreØ40 mm
- Max stroke75 mm
- Adjustable range0–75 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 SDAJ40X75-75
The AirTAC SDAJ40X75-75 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 end-position from 0 to 75 mm directly on your machine, eliminating the need for shims or part swaps during changeovers. Retract remains full length, and because the adjuster sets the mechanical stop rather than the piston area, output force equals a standard SDA of this bore.
Delivering 628.3 N push at 0.5 MPa, this unit integrates a short riveted body that saves axial mounting depth where round-body or profile cylinders will not fit. The bore dictates a 16 mm rod and PT1/8 porting. End shock is handled by a fixed NBR bumper, which decelerates the stroke end but is not an adjustable air cushion. Note this specific SKU lacks a piston magnet, so it cannot host reed or electronic switches.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-75 Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-75 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Max stroke | 75 mm |
| Adjustable range | 0 – 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 75 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 SDAJ40X75-75
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 40 | Bore size in mm. |
| ×75 | Maximum stroke length in mm. |
| -75 | 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 SDAJ40X75-75 Is Used
Machining Clamps
Dial the 0-75 mm extend stop to secure raw castings of varying widths, utilizing the 628.3 N push force for rigid holding during milling.
Carton Flappers
Adjust the forward stroke on the fly to fold different box sizes without changing cylinders, relying on the fixed NBR bumper to absorb end shock.
Vertical Lift Stops
Set precise lower stopping heights for a 32 kg lift payload, using the M12x1.25 adjuster screw to define the exact extend endpoint.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X75-75 the Right Cylinder?
When sizing this 40 mm bore, look 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 at 0.5 MPa gives a safe working load of roughly 377 N (about 60 percent of capacity), translating to a vertical lift of approximately 32 kg with a 2:1 safety margin. Choose this model when your fixture requires frequent trial positioning or on-site stroke tuning.
Confirm the 40 mm bore, 75 mm maximum stroke, 75 mm adjustment window, and PT1/8 porting suit your manifold. This base configuration has no magnet (no -S), meaning position sensing is unavailable unless you specify the -S variant. Remember that a plain cylinder does not hold its load on air loss or valve centring; the fixed bumper only decelerates near the end and the R screw is a mechanical stop, not a lock. For load holding without live pressure, integrate an external rod lock or pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 0–75 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 SDAJ40X75-75 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 of 128 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa, proof pressure is 1.5 MPa, and speed ranges from 30-500 mm/s.
The external R (M12x1.25) screw mechanically shortens the extend stroke by up to 75 mm, giving a usable forward range of 0-75 mm without altering the 628.3 N force. This specific SKU lacks a piston magnet, so it cannot take magnetic switches; you must select the -S variant to use AirTAC reed or electronic sensors.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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