Airtac B01-SDAJ Special Cylinder B01-SDAJ20X60-30
The AirTAC Airtac B01-SDAJ Special Cylinder B01-SDAJ20X60-30 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.
- BoreØ20 mm
- Max stroke60 mm
- Adjustable range30–60 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-SDAJ20X60-30
The AirTAC B01-SDAJ20X60-30 is a compact double-acting single-rod cylinder featuring an external adjustable extend stop. The leading "B01-" prefix marks this as an application-dedicated, customer-specified variant of the base SDAJ20X60-30, meaning it is mechanically identical to the standard model. A built-in M6x1.0 adjuster screw lets you dial the extend position down from the 60mm maximum to any point between 30mm and 60mm directly on the machine, eliminating the need for shims or part swaps. Because the adjuster sets the mechanical stop rather than altering the piston area, output force remains equal to a standard SDA of this bore, delivering about 157.1 N of push at 0.5 MPa.
Designed to save axial mounting depth where a round-body or profile cylinder will not fit, this riveted-body unit operates at 30-500 mm/s. The extend and retract endpoints rely on a fixed NBR bumper to decelerate the stroke end; this is not an adjustable air cushion, nor does it act as a brake. Note that this specific SKU lacks a piston magnet and cannot support sensing switches, though the broader series accommodates reed or electronic sensors when specified with the -S option.
Airtac B01-SDAJ Special Cylinder B01-SDAJ20X60-30 Technical Specifications
| Model | Airtac B01-SDAJ Special Cylinder B01-SDAJ20X60-30 |
|---|---|
| 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.
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-SDAJ20X60-30
| 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).
Where the Airtac B01-SDAJ Special Cylinder B01-SDAJ20X60-30 Is Used
Prototype Dial-In
Perfect for prototype tooling where the exact extend endpoint is unknown; turn the M6 screw to test positions between 30mm and 60mm without machining new spacers.
Changeover Diverter
Ideal for packaging lines running mixed product sizes, allowing operators to quickly re-set the extend stroke on the fly to handle varying package widths.
Trial Positioning Rig
Useful in lab test jigs needing precise 8 kg vertical lifts, letting technicians fine-tune the downstroke safely within the 30-60mm window.
Is the Airtac B01-SDAJ Special Cylinder B01-SDAJ20X60-30 the Right Cylinder?
When sizing this unit, evaluate both neighboring bores against your actual force needs. Stepping down to the SDAJ16 yields 100.5 N of push at 0.5 MPa, while stepping up to the SDAJ25 provides 245.4 N. This 20mm bore generates 157.1 N push at 0.5 MPa, translating to a safe working load of roughly 94 N (about 60% of the 0.5 MPa figure) and a vertical lift capacity of approximately 8 kg with a 2:1 safety margin. Choose this adjustable model if your application requires frequent on-machine stroke tuning or trial positioning. Confirm your required bore (20mm), maximum stroke (60mm), adjustment window (30mm), port size (M5x0.8), and female rod-end thread (M4x0.7). Keep in mind a plain cylinder does not hold its load on air loss or when a valve is centred; the piston drifts and the fixed bumper only decelerates near the stroke end. For secure load holding without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 30–60 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 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-SDAJ20X60-30 FAQ
This 20mm bore double-acting cylinder delivers 157.1 N push and 131.9 N pull at 0.5 MPa, and 219.9 N push at 0.7 MPa. The theoretical maximum push is 32 kgf at 1.0 MPa. It operates at speeds of 30-500 mm/s.
The B01- prefix designates an application-dedicated, customer-specified variant of the SDAJ20X60-30, sharing the exact same physical specs. The M6x1.0 adjuster screw mechanically shortens the extend stop by up to 30mm, giving a usable extend range of 30-60mm. It does not alter the force and is not a mid-stroke lock.
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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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