Airtac B01-SDAJ Special Cylinder B01-SDAJ40X40-10
The AirTAC Airtac B01-SDAJ Special Cylinder B01-SDAJ40X40-10 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 40 mm on the machine — no shims, no part change.
- BoreØ40 mm
- Max stroke40 mm
- Adjustable range30–40 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 B01-SDAJ Special Cylinder B01-SDAJ40X40-10
The B01-SDAJ40X40-10 is a double-acting compact cylinder where the B01- prefix designates an application-dedicated, customer-specified variant of the standard SDAJ40X40-10. Mechanically, it retains all base specifications, offering a 40 mm bore and a short riveted body that saves axial mounting depth in tight tooling spaces. An external M12x1.25 adjustment screw lets you dial the extend stop directly on the machine between 30 and 40 mm without shims or part changes.
Because the adjuster sets the mechanical stop rather than the piston area, output force remains identical to a standard SDA of this size, delivering about 628.3 N push at 0.5 MPa. End-of-travel deceleration is handled by a fixed NBR bumper, not an adjustable air cushion. Note that this specific SKU lacks a piston magnet, so it cannot support reed or electronic switches without upgrading to the -S option.
Airtac B01-SDAJ Special Cylinder B01-SDAJ40X40-10 Technical Specifications
| Model | Airtac B01-SDAJ Special Cylinder B01-SDAJ40X40-10 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Max stroke | 40 mm |
| Adjustable range | 30 – 40 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 10 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 B01-SDAJ Special Cylinder B01-SDAJ40X40-10
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 40 | Bore size in mm. |
| ×40 | Maximum stroke length in mm. |
| -10 | 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 B01-SDAJ Special Cylinder B01-SDAJ40X40-10 Is Used
Custom Tooling Calibration
Dial in the exact 30-40 mm extend stop during initial fixture setup to precisely position a 32 kg workpiece without swapping shims.
Changeover Adjustments
Quickly re-tune the extend position on a packaging line running varied product heights, leveraging the 628.3 N push to seat components firmly.
Trial Positioning Rigs
Use the external M12x1.25 screw to find the optimal reach for a testing probe, then lock the mechanical stop for repeatable cycles.
Is the Airtac B01-SDAJ Special Cylinder B01-SDAJ40X40-10 the Right Cylinder?
When sizing this unit, evaluate both neighboring bores: the SDAJ32 provides 402.1 N push at 0.5 MPa, while the SDAJ50 offers 981.7 N. This 40 mm bore yields a safe working load of roughly 377 N (about 60 percent of its 0.5 MPa rating) and can vertically lift approximately 32 kg with a 2:1 safety margin. Choose this model when your fixture requires precise on-site extend tuning within that 30-40 mm window.
Confirm your parameters: 40 mm bore, 40 mm maximum stroke, 10 mm adjust window, PT1/8 port, and a female M8x1.25 rod-end thread on a 16 mm rod. A plain cylinder drifts when air is lost or the valve centers, as the fixed bumper only decelerates near the end and the adjuster acts as a stop, not a lock. 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 30–40 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 B01-SDAJ Special Cylinder B01-SDAJ40X40-10 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. The B01- prefix simply marks it as an application-dedicated variant of the SDAJ40X40-10, mechanically identical to the base model.
Turning the R (M12x1.25) screw mechanically shortens the extend stroke by up to 10 mm, allowing you to set the end position anywhere between 30 and 40 mm on the machine. This SKU has no piston magnet and cannot take a magnetic switch; you must select the -S variant to use reed or electronic sensors.
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Standard models are processed and dispatched in 3-5 business days.
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