Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X120-100B
The AirTAC Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X120-100B 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 20 to 120 mm on the machine — no shims, no part change.
- BoreØ40 mm
- Max stroke120 mm
- Adjustable range20–120 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 SDAJ40X120-100B
The SDAJ40X120-100B is a double-acting compact cylinder featuring a 40mm bore and a 120mm maximum stroke. Its external M12x1.25 adjuster screw lets you dial the extend end-position down to 20mm directly on the machine, providing a 20-120mm usable window without changing parts. Because the adjuster only sets the mechanical stop, output force remains identical to a standard SDA of this bore, delivering 628.3N push at 0.5MPa.
This variant uses a male M14x1.5 piston rod thread and includes a fixed NBR bumper at each end to decelerate the stroke. The short riveted body saves axial mounting depth where larger profile cylinders will not fit. Note this SKU lacks a piston magnet, so it cannot accept reed or electronic switches.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X120-100B Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X120-100B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Max stroke | 120 mm |
| Adjustable range | 20 – 120 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 100 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 SDAJ40X120-100B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 40 | Bore size in mm. |
| ×120 | Maximum stroke length in mm. |
| -100 | 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 SDAJ40X120-100B Is Used
Machine Tending Setup
Dial the extend stop from 20 to 120mm via the M12x1.25 screw during initial commissioning to perfectly strike a part ejector without machining new spacers.
Quick Changeover Lines
Rapidly reposition the 628.3N extend endpoint for different product families, cutting format change times while maintaining consistent push force.
Trial Positioning Jigs
Safely test gripper reach limits in new assembly fixtures by adjusting the mechanical stop on-site, preventing over-travel before finalizing hard stops.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X120-100B the Right Cylinder?
When sizing this unit, verify if the 628.3N push at 0.5MPa fits your load. Stepping down, the SDAJ32 bore provides 402.1N, while stepping up to the SDAJ50 yields 981.7N. A practical safe working load is roughly 377N (about 60% of the 0.5MPa figure), translating to a vertical lift capacity of about 32kg with a 2:1 safety margin.
Choose this 40mm bore with its 20-120mm extend window for changeover-heavy lines requiring frequent trial positioning. Confirm your porting (PT1/8) and the male M14x1.5 rod thread. A plain SDAJ does not hold position on air loss or valve centering; the bumper only decelerates near the end. For load holding without live pressure, install an external rod lock or pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 20–120 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 SDAJ40X120-100B FAQ
At 0.5MPa it provides 628.3N push and 527.8N pull. At 0.7MPa it provides 879.6N push and 738.9N pull. The theoretical maximum push is 128kgf at 1.0MPa.
The M12x1.25 screw shortens the extend stroke by up to 100mm, giving a 20-120mm usable range. The -B suffix means the 16mm rod features a male M14x1.5 thread. This SKU has no magnet, so it cannot use sensing switches.
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