Airtac B01-SDAJ Special Cylinder B01-SDAJ25X75-30SB
The AirTAC Airtac B01-SDAJ Special Cylinder B01-SDAJ25X75-30SB is a genuine double-acting COMPACT cylinder (Ø25mm bore) whose extend end-position is set by an external M8×1.25 adjustment screw. You can dial the stroke anywhere from 45 to 75 mm on the machine — no shims, no part change.
- BoreØ25 mm
- Max stroke75 mm
- Adjustable range45–75 mm
- Adjuster threadM8×1.25
- Port sizeM5×0.8
- 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-SDAJ25X75-30SB
The B01-SDAJ25X75-30SB is a double-acting compact cylinder with an external adjustable extend stop. The leading "B01-" prefix marks this as AirTAC's application-dedicated (customer-specified) variant of the base SDAJ25X75-30SB, meaning it is mechanically identical to the standard model. It features a 25mm bore and generates 245.4 N push at 0.5 MPa. A built-in piston magnet (-S) enables position sensing, while the male-thread piston rod (-B) provides an M8x1.25 mounting interface.
You can dial the extend end-position on the machine between 45 and 75 mm using the R (M8x1.25) adjuster screw, shortening the stroke by up to 30 mm without changing parts. The adjuster sets the mechanical stop, so force remains equal to a standard SDA of this bore. The short riveted body saves axial mounting depth where round-body or profile cylinders will not fit. End shock is handled by a fixed NBR bumper, not an adjustable air cushion.
Airtac B01-SDAJ Special Cylinder B01-SDAJ25X75-30SB Technical Specifications
| Model | Airtac B01-SDAJ Special Cylinder B01-SDAJ25X75-30SB |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø25 mm |
| Max stroke | 75 mm |
| Adjustable range | 45 – 75 mm |
| Adjuster thread (R) | M8×1.25 |
| Port size | M5×0.8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M5×0.8 F / M8×1.25 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 30 mm. Force is unchanged from a standard SDA of the same bore. Specifications follow the official AirTAC SDAJ datasheet.
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | — |
| Max (@1.0 MPa) | 50 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-SDAJ25X75-30SB
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 25 | Bore size in mm. |
| ×75 | Maximum stroke length in mm. |
| -30 | 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-SDAJ25X75-30SB Is Used
Trial Positioning Jigs
Dial the extend stop from 45 to 75 mm via the R screw to find the exact contact point for a 12.5 kg vertical lift jig before locking the setting.
Quick Changeover Lines
Swap product fixtures and re-tune the extend end on-site without shims, relying on the 245.4 N push to seat the new component reliably.
Variable Depth Flap Folding
Adjust the mechanical stop for different carton depths on the fly, letting the fixed NBR bumper absorb the end shock during rapid cycling.
Is the Airtac B01-SDAJ Special Cylinder B01-SDAJ25X75-30SB the Right Cylinder?
When sizing this bore, compare its 245.4 N push at 0.5 MPa with neighbouring models. Stepping down to the SDAJ20 yields 157.1 N, whereas stepping up to the SDAJ32 provides 402.1 N. A practical safe working load is roughly 147 N (about 60% of the 0.5 MPa figure), allowing a vertical lift of approximately 12.5 kg with a 2:1 margin. This model suits setups requiring frequent on-site stroke tuning or changeovers.
Confirm the 25 mm bore, 75 mm maximum stroke, 30 mm adjustment window, M5x0.8 air port, male M8x1.25 rod thread, and built-in magnet. Note that a plain cylinder does not hold its load on air loss or when the valve is centred; the piston drifts and the fixed bumper only decelerates near the stroke end. For a held load without live pressure, install an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 45–75 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 M8×1.25 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-SDAJ25X75-30SB FAQ
The B01- prefix designates an application-dedicated variant of the SDAJ25X75-30SB with identical mechanics. This 25mm bore double-acting cylinder delivers 245.4 N push and 206.2 N pull at 0.5 MPa, 343.6 N push at 0.7 MPa, and a theoretical maximum of 50 kgf at 1.0 MPa. It operates at 30-500 mm/s.
The R (M8x1.25) screw shortens the extend stroke by up to 30 mm, giving a usable range of 45 to 75 mm without altering the force. The -S code indicates a built-in piston magnet compatible with AirTAC reed or electronic switches for end-position sensing.
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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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