Airtac B01-SDAJ Special Cylinder B01-SDAJ20X75-75SB
The AirTAC Airtac B01-SDAJ Special Cylinder B01-SDAJ20X75-75SB is a genuine double-acting COMPACT cylinder (Ø20mm bore) whose extend end-position is set by an external M6×1.0 adjustment screw. You can dial the stroke anywhere from 0 to 75 mm on the machine — no shims, no part change.
- BoreØ20 mm
- Max stroke75 mm
- Adjustable range0–75 mm
- Adjuster threadM6×1.0
- 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-SDAJ20X75-75SB
The B01-SDAJ20X75-75SB is an AirTAC double-acting compact cylinder featuring an external adjustable extend stop. The leading "B01-" prefix marks this as an application-dedicated (customer-specified) variant of the base SDAJ20X75-75SB, meaning it is mechanically identical to the standard model. Turning the R (M6x1.0) adjuster screw lets you dial the extend position from 0 to 75 mm directly on the machine without changing parts.
Because the adjuster sets the mechanical stop rather than the piston area, output force remains equal to a standard SDA of this bore, providing 157.1 N push at 0.5 MPa. The short riveted body saves axial mounting depth where round-body or profile cylinders will not fit. This unit includes a built-in magnet for reed or electronic switches and a male M6x1.0 piston rod end.
Airtac B01-SDAJ Special Cylinder B01-SDAJ20X75-75SB Technical Specifications
| Model | Airtac B01-SDAJ Special Cylinder B01-SDAJ20X75-75SB |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Max stroke | 75 mm |
| Adjustable range | 0 – 75 mm |
| Adjuster thread (R) | M6×1.0 |
| Port size | M5×0.8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M4×0.7 F / M6×1.0 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 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-SDAJ20X75-75SB
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 20 | 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 B01-SDAJ Special Cylinder B01-SDAJ20X75-75SB Is Used
Trial Positioning Jigs
Dial the extend stop from 0 to 75 mm during prototype runs to find the exact 157.1 N contact point without machining new spacers.
Changeover Pushers
Switch product formats on a packaging line by turning the M6x1.0 adjuster screw to reposition the male rod tip instantly.
Vertical Lift Stops
Lift roughly 8 kg loads with a 2:1 safety margin and fine-tune the extend endpoint to prevent overtravel on delicate stops.
Is the Airtac B01-SDAJ Special Cylinder B01-SDAJ20X75-75SB the Right Cylinder?
Size this 20 mm bore against its neighbours: stepping down to SDAJ16 yields 100.5 N push at 0.5 MPa, while moving up to SDAJ25 provides 245.4 N. With a safe working load around 94 N (about 60% of the 157.1 N figure) and a vertical lift capacity near 8 kg with a 2:1 margin, this model suits moderate actuation tasks. Choose it when you need on-site stroke tuning between 0 and 75 mm.
Confirm the 20 mm bore, 75 mm maximum stroke, 75 mm adjustment window, M5x0.8 port, -S magnet, and -B male rod thread. A plain cylinder does not hold its load on air loss or valve centring—the piston drifts and the fixed NBR bumper only decelerates near the stroke end. For a held load, specify an external rod lock or a 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 M6×1.0 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-SDAJ20X75-75SB FAQ
This 20 mm bore double-acting cylinder delivers 157.1 N push and 131.9 N pull at 0.5 MPa, 219.9 N push and 184.7 N pull at 0.7 MPa, with a theoretical maximum of 32 kgf at 1.0 MPa. It operates at 30-500 mm/s and the B01- prefix simply denotes an application-dedicated variant of the base SDAJ20X75-75SB.
The R (M6x1.0) screw shortens the extend stroke by up to 75 mm, giving a usable extend range of 0-75 mm without changing force. The included -S magnet works with AirTAC reed or electronic switches for position sensing, while a fixed NBR bumper decelerates the stroke end.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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