Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-20
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-20 is a genuine double-acting COMPACT cylinder (Ø80mm bore) whose extend end-position is set by an external M20×1.5 adjustment screw. You can dial the stroke anywhere from 35 to 55 mm on the machine — no shims, no part change.
- BoreØ80 mm
- Max stroke55 mm
- Adjustable range35–55 mm
- Adjuster threadM20×1.5
- Port sizePT3/8
- CushionFixed NBR bumper (both ends)
About the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-20
The AirTAC SDAJ80X55-20 is a compact double-acting single-rod cylinder featuring an external adjustable extend stop. By turning the R (M20x1.5) screw, you can dial the forward stroke down by up to 20 mm directly on the machine, yielding a usable extend range of 35 to 55 mm without swapping shims or parts. Retract remains at the full length, and the adjuster strictly sets the mechanical stop position without altering the bore's output force.
This unit delivers a substantial 2513.3 N push at 0.5 MPa, identical to a standard SDA of this size. The short riveted body saves axial mounting depth where round-body or profile cylinders will not fit. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, so for high-energy cycles you should slow the approach or add an external shock absorber.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-20 Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-20 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Max stroke | 55 mm |
| Adjustable range | 35 – 55 mm |
| Adjuster thread (R) | M20×1.5 |
| Port size | PT3/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M14×1.5 F / M22×1.5 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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 SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-20
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 80 | Bore size in mm. |
| ×55 | 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 SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-20 Is Used
Heavy Press Fitment
Dial in the 35-55 mm extend stop to set precise pressing depth for heavy bearings, utilizing the 2513.3 N force without over-traveling.
Large Package Diverting
Adjust the stroke on-site to accommodate varying pallet sizes on a packaging line, ensuring the 25 mm rod pushes exactly to the required guide position.
Tooling Changeover
Rapidly reconfigure the extend endpoint during machine format changes, saving setup time by turning the R M20x1.5 screw instead of replacing hardware.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-20 the Right Cylinder?
Choosing this 80 mm bore provides 2513.3 N push at 0.5 MPa. If your application is lighter, the neighbouring SDAJ63 drops to 1558.6 N, whereas stepping up to the SDAJ100 raises the output to 3927 N. This SKU carries no piston magnet, so it cannot accept AirTAC reed or electronic switches; select the -S variant if you require position sensing.
The on-machine tuning window is perfect for setups requiring frequent changeovers or trial positioning. 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 end. For a locked load without live pressure, install an external rod lock or a pilot-operated check valve. Confirm your bore, 55 mm stroke, 20 mm window, PT3/8 port, and female M14x1.5 rod-end thread.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 35–55 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 M20×1.5 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 SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-20 FAQ
This 80 mm bore cylinder provides 2513.3 N push and 2267.8 N pull at 0.5 MPa, and 3518.6 N push at 0.7 MPa. The theoretical maximum push is 513 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa, with a speed range of 30-500 mm/s.
The R (M20x1.5) screw shortens the extend endpoint by up to 20 mm, giving a 35-55 mm range. It acts only as a mechanical stop and does not change the force. The cylinder cannot hold a load on air loss; you need an external rod lock or pilot-operated check valve for load holding.
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