
The AirTAC Airtac B01-SDAJ Special Cylinder B01-SDAJ20X60-30S 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 30 to 60 mm on the machine — no shims, no part change.
The B01-SDAJ20X60-30S is a double-acting, single-rod compact cylinder. The leading "B01-" prefix marks this as an AirTAC application-dedicated (customer-specified) variant of the base SDAJ20X60-30S; mechanically, every spec matches the standard unit exactly. It features a short riveted body that saves axial mounting depth where round-body or profile cylinders will not fit.
An external M6x1.0 adjuster screw lets you dial the extend stop on-site between 30 and 60 mm without shims. The adjuster sets the mechanical stop position, not the piston area, so output remains 157.1 N push at 0.5 MPa. A fixed NBR bumper decelerates the stroke end, and the built-in magnet (-S) supports reed or electronic switches.
| Model | Airtac B01-SDAJ Special Cylinder B01-SDAJ20X60-30S |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Max stroke | 60 mm |
| Adjustable range | 30 – 60 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 30 mm. Force is unchanged from a standard SDA of the same bore. Specifications follow the official AirTAC SDAJ datasheet.
| 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.
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 20 | Bore size in mm. |
| ×60 | 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).
Dial the extend stop from 30 to 60 mm to find the exact contact point for a 94 N safe working load during prototype jig setup.
Switch product profiles on a packaging line by turning the M6x1.0 screw, avoiding part changes while maintaining 157.1 N push at 0.5 MPa.
Fit the short riveted body into tight machine bays to eject parts, using the fixed NBR bumper to absorb end-of-stroke shock.
Size this 20 mm bore against its neighbors: dropping to a 16 mm bore yields 100.5 N push at 0.5 MPa, while stepping up to a 25 mm bore provides 245.4 N push at 0.5 MPa. This unit delivers 157.1 N push at 0.5 MPa, translating to a safe working load of roughly 94 N (about 60 percent of capacity) and a vertical lift of approximately 8 kg with a 2:1 margin.
Choose this model for setups requiring frequent on-machine stroke tuning across a 30-60 mm window. Confirm the 20 mm bore, 60 mm max stroke, 30 mm adjustment, M5x0.8 port, female M4x0.7 rod thread, and the -S magnet. A plain cylinder does not hold a load on air loss or valve centering; for load holding without live pressure, install an external rod lock or pilot-operated check valve.
Quick checklist
The B01- prefix indicates an application-dedicated variant of the SDAJ20X60-30S with identical mechanics. It 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 max of 32 kgf at 1.0 MPa. It uses an M5x0.8 port, an Ø8 mm rod, and operates at 30-500 mm/s.
Turning the external R (M6x1.0) screw shortens the extend stop by up to 30 mm, giving a usable extend range of 30-60 mm; retract remains full. The screw sets the stop position only and does not alter force. The -S code means a built-in piston magnet is included for position sensing with AirTAC reed or electronic switches.
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