Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ16X80-20
The AirTAC Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ16X80-20 is a genuine double-acting COMPACT cylinder (Ø16mm bore) whose extend end-position is set by an external M5×0.8 adjustment screw. You can dial the stroke anywhere from 60 to 80 mm on the machine — no shims, no part change.
- BoreØ16 mm
- Max stroke80 mm
- Adjustable range60–80 mm
- Adjuster threadM5×0.8
- 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 SDAJ16X80-20
The AirTAC SDAJ16X80-20 is a compact double-acting single-rod cylinder featuring an external extend stop. An M5x0.8 adjuster screw lets you dial the forward stroke from 60 to 80 mm directly on the machine, avoiding shims or part swaps. Because the adjuster sets the mechanical stop rather than the piston area, output force remains identical to a standard SDA of this bore, providing 100.5 N push at 0.5 MPa.
This unit saves axial mounting depth where round-body or profile alternatives will not fit, thanks to its short riveted body. Note that the 80 mm stroke exceeds the 60 mm standard maximum for a 16 mm bore, making this a made-to-order item. End-of-travel deceleration is handled by a fixed NBR bumper, which is not an adjustable air cushion. This specific SKU lacks a piston magnet and therefore cannot support sensing.
Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ16X80-20 Technical Specifications
| Model | Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ16X80-20 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Max stroke | 80 mm |
| Adjustable range | 60 – 80 mm |
| Adjuster thread (R) | M5×0.8 |
| Port size | M5×0.8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M3×0.5 F / M5×0.8 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 (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 101 N | 86 N |
| 0.7 MPa | 141 N | — |
| Max (@1.0 MPa) | 21 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 SDAJ16X80-20
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 16 | Bore size in mm. |
| ×80 | 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 SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ16X80-20 Is Used
Trial Positioning Jigs
Dial in the exact 60-80 mm extend point during prototype tooling setup without machining new spacers, leveraging the 100.5 N push for light clamping.
Package Diverters
Fine-tune the pusher stroke on the fly for varying carton widths, ensuring the 5.1 kg vertical lift margin is safely maintained during transit transfers.
Compact Assembly Stations
Fit the short riveted body into tight axial spaces where standard cylinders fail, using the fixed NBR bumper to absorb repetitive end-of-stroke impacts.
Is the Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ16X80-20 the Right Cylinder?
When sizing this actuator, consider the neighbouring bores: stepping down to SDAJ12 yields 56.5 N push at 0.5 MPa, while stepping up to SDAJ20 provides 157.1 N. Based on the 100.5 N output at 0.5 MPa, the safe working load is roughly 60 N, allowing a vertical lift of approximately 5.1 kg with a 2:1 safety margin. Choose this 16 mm bore if your fixture requires that specific intermediate force.
On-machine stroke tuning is essential for lines with frequent format changeovers or trial positioning. Be aware that a plain cylinder does not hold its load upon air loss or valve centring; the piston drifts and the fixed bumper only decelerates near the end of travel. For secure load holding without live pressure, integrate an external rod lock or pilot-operated check valve. Confirm your bore, 80 mm stroke, 20 mm window, M5x0.8 port, female rod thread, and lack of magnet for this configuration.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 60–80 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 M5×0.8 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 SDAJ16X80-20 FAQ
This 16 mm bore double-acting cylinder delivers 100.5 N push and 86.4 N pull at 0.5 MPa, 140.7 N push and 121 N pull at 0.7 MPa, with a theoretical maximum of 21 kgf at 1.0 MPa.
Turning the M5x0.8 R screw shortens the extend stop by up to 20 mm, giving a usable forward range of 60 to 80 mm. The retract stroke remains full, and the screw acts purely as a mechanical stop, not a mid-stroke lock.
Authorized Export Seller
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.
Related AirTAC SDAJ Cylinders
Request a Quote for Airtac SDAJ12~25 Adjustable Ultra-Thin Cylinder SDAJ16X80-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.