Airtac B01-SDAJ Special Cylinder B01-SDAJ40X60-20S
The AirTAC Airtac B01-SDAJ Special Cylinder B01-SDAJ40X60-20S 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 40 to 60 mm on the machine — no shims, no part change.
- BoreØ40 mm
- Max stroke60 mm
- Adjustable range40–60 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-SDAJ40X60-20S
The AirTAC B01-SDAJ40X60-20S is a compact double-acting single-rod cylinder engineered for tight axial mounting spaces. Its short riveted body saves footprint depth where larger profile or round-body units fail to fit. The integrated M12x1.25 external adjuster screw lets you dial the extend stop directly on the machine, shortening the forward stroke by up to 20 mm to achieve a precise 40 to 60 mm usable range without shims or part changes.
Because the adjuster sets the mechanical stop rather than altering the piston area, output force remains identical to a standard SDA of this bore, delivering about 628.3 N push at 0.5 MPa. The B01- prefix denotes AirTAC's application-dedicated customer-specified variant line, meaning this unit is mechanically identical to the base SDAJ40X60-20S. It features a built-in piston magnet for reed or electronic switches and relies on a fixed NBR bumper to decelerate the stroke end.
Airtac B01-SDAJ Special Cylinder B01-SDAJ40X60-20S Technical Specifications
| Model | Airtac B01-SDAJ Special Cylinder B01-SDAJ40X60-20S |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Max stroke | 60 mm |
| Adjustable range | 40 – 60 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 20 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-SDAJ40X60-20S
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 40 | Bore size in mm. |
| ×60 | Maximum stroke length in mm. |
| -20 | 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-SDAJ40X60-20S Is Used
Prototype Dial-In
Ideal for trial positioning on prototype machining fixtures, letting technicians turn the M12x1.25 screw to find the exact 40-60 mm extend stop before finalizing the setup.
Changeover Diverter
Speeds up packaging line changeovers by allowing operators to quickly reposition a 628.3 N push diverter gate without swapping out the entire cylinder body.
Vertical Lift Stop
Provides a mechanical stop for vertical lifts around 32 kg, ensuring the load reaches a precise lower position while relying on a fixed NBR bumper for end deceleration.
Is the Airtac B01-SDAJ Special Cylinder B01-SDAJ40X60-20S the Right Cylinder?
Size this 40 mm bore by comparing neighbours: stepping down to SDAJ32 yields 402.1 N push at 0.5 MPa, while stepping up to SDAJ50 provides 981.7 N. The 40 mm bore strikes a middle ground, offering a safe working load of roughly 377 N (about 60% of its 628.3 N capacity) and a vertical lift capability near 32 kg with a 2:1 safety margin. Choose this model when your fixture requires on-site stroke tuning across a 40-60 mm window.
Confirm the 60 mm maximum stroke, 20 mm adjust window, PT1/8 port, and the female M8x1.25 rod-end thread. The included -S magnet supports position sensing. Remember that a plain cylinder does not hold its load on air loss or valve centring; the piston drifts and the fixed bumper only decelerates near the end. For secure load holding 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 40–60 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-SDAJ40X60-20S 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. It operates at 30-500 mm/s and uses a PT1/8 port.
The B01- prefix marks this as an application-dedicated variant of the SDAJ40X60-20S, mechanically identical to the base model. The M12x1.25 adjuster screw shortens the extend stop by up to 20 mm, giving a usable 40-60 mm forward range. The -S code means it has a built-in magnet for AirTAC reed or electronic switches.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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