Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-20SB
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-20SB 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 25 to 45 mm on the machine — no shims, no part change.
- BoreØ80 mm
- Max stroke45 mm
- Adjustable range25–45 mm
- Adjuster threadM20×1.5
- Port sizePT3/8
- CushionFixed NBR bumper (both ends)
About the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-20SB
The SDAJ80X45-20SB is a compact double-acting single-rod cylinder built for tight axial spaces, featuring a short riveted body that saves mounting depth where round-body units fail to fit. It utilizes a male-thread M22x1.5 piston rod and a PT3/8 air port. A built-in piston magnet (-S) enables position sensing with AirTAC reed or electronic switches.
An external R (M20x1.5) adjuster screw lets you dial the extend stop directly on the machine between 25 and 45 mm without changing parts. Because the adjuster sets the mechanical stop rather than the piston area, force remains identical to a standard SDA of this bore, delivering 2513.3 N push at 0.5 MPa. End shock is managed solely by a fixed NBR bumper that decelerates the stroke, meaning it is not an adjustable air cushion.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-20SB Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-20SB |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Max stroke | 45 mm |
| Adjustable range | 25 – 45 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 SDAJ80X45-20SB
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 80 | Bore size in mm. |
| ×45 | 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 SDAJ80X45-20SB Is Used
Heavy Press Fitment
Dial the 25-45 mm extend stop to seat heavy bearings precisely during automated press cycles, leveraging the 2513.3 N push without swapping shims.
Tooling Changeover
Quickly reposition the male M22x1.5 rod end for varying jig heights on a machining line, using the M20x1.5 adjuster to fine-tune the extend endpoint on the floor.
Vertical Lift Stops
Lift loads up to 128.1 kg with a 2:1 margin and set the exact lower stop position, knowing the fixed NBR bumper decelerates the approach rather than locking the load.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-20SB the Right Cylinder?
When sizing this unit, evaluate both neighbors: stepping down to an SDAJ63 yields 1558.6 N push at 0.5 MPa, while stepping up to an SDAJ100 provides 3927 N. The 80 mm bore here outputs 2513.3 N at 0.5 MPa, translating to a safe working load of roughly 1508 N (about 60 percent of capacity) and a vertical lift capacity near 128.1 kg with a 2:1 margin.
Choose this specific configuration when your fixture requires on-site stroke tuning across a 25-45 mm window. Confirm the 80 mm bore, 45 mm max stroke, 20 mm adjustment range, PT3/8 port, male M22x1.5 rod thread, and magnetic switch readiness. Note that a plain cylinder drifts on air loss or valve centering; the fixed bumper only decelerates near the end and the R screw is a mechanical stop, not a lock. For load holding without live pressure, install an external rod lock or pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 25–45 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 SDAJ80X45-20SB FAQ
This 80 mm bore cylinder uses a PT3/8 port. It generates 2513.3 N push and 2267.8 N pull at 0.5 MPa, 3518.6 N push and 3175 N pull at 0.7 MPa, with a theoretical maximum of 513 kgf at 1.0 MPa.
The R (M20x1.5) screw shortens the extend stroke by up to 20 mm, allowing usable end positions between 25 and 45 mm. The included -S magnet works with AirTAC reed or electronic solid-state switches for position confirmation.
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Standard models usually ship in 3-4 days.
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