Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ20X15-10S
The AirTAC Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ20X15-10S 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 5 to 15 mm on the machine — no shims, no part change.
- BoreØ20 mm
- Max stroke15 mm
- Adjustable range5–15 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 SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ20X15-10S
The AirTAC SDAJ20X15-10S is a compact double-acting single-rod cylinder featuring an external adjustable extend stop. Turning the M6x1.0 adjuster screw lets you dial the extend end-position anywhere between 5 and 15 mm directly on the machine, eliminating the need for shims or part changes during fine-tuning. Because the adjuster sets the mechanical stop rather than the piston area, output force remains identical to a standard SDA of this bore, delivering about 157.1 N of push at 0.5 MPa.
This 20 mm bore unit features a short riveted body that saves axial mounting depth where a round-body or profile cylinder will not fit. It includes a built-in piston magnet (-S) for AirTAC reed or electronic switches, and relies on a fixed NBR bumper at each end to decelerate the stroke. The bumper is not an adjustable air cushion, and the adjuster functions strictly as a stop, not a mid-stroke lock.
Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ20X15-10S Technical Specifications
| Model | Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ20X15-10S |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Max stroke | 15 mm |
| Adjustable range | 5 – 15 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 10 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 SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ20X15-10S
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 20 | Bore size in mm. |
| ×15 | Maximum stroke length in mm. |
| -10 | 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 SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ20X15-10S Is Used
Trial Positioning Probes
Dial the M6x1.0 screw to find the exact 5 to 15 mm extension for a sensor probe, securing the stop once the optimal measurement depth is reached.
Light Carton Flap Folding
Provides 157.1 N of push at 0.5 MPa to fold lightweight packaging flaps, with on-machine adjustability to handle minor box height variances.
Thin-Metal Alignment Stops
Use the compact riveted body to fit within tight press dies, adjusting the extend stop to push sheet metal precisely without over-bending.
Is the Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ20X15-10S the Right Cylinder?
When sizing this actuator, check both neighbouring bores: 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 SDAJ20X15-10S sits between them, offering a safe working load of roughly 94 N (about 60% of its 157.1 N capacity) and a vertical lift capability of approximately 8 kg with a 2:1 safety margin. Choose this specific model if your fixture requires exact on-site stroke tuning within a 5 to 15 mm window.
Confirm the 20 mm bore, 15 mm maximum stroke, 10 mm adjustability window, M5x0.8 port, and the -S magnet for switch integration. The rod end thread is female M4x0.7. Remember 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 securely 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 5–15 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 SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ20X15-10S FAQ
This 20 mm bore double-acting cylinder provides a push of 157.1 N and a pull of 131.9 N at 0.5 MPa. At 0.7 MPa, the push increases to 219.9 N. The theoretical maximum push force is 32 kgf at 1.0 MPa.
The external M6x1.0 screw shortens the extend stroke by up to 10 mm, allowing a usable extend range of 5 to 15 mm; retract remains full. The -S option denotes a built-in piston magnet designed to trigger AirTAC reed or electronic solid-state 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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