Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-20S
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-20S 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 SDAJ80X45-20S
The AirTAC SDAJ80X45-20S is a double-acting, single-rod compact cylinder featuring an external extend-stop mechanism. By turning the M20x1.5 adjuster screw, you can shorten the forward stroke on the machine, dialling the rod end anywhere between 25 and 45 mm without swapping shims or components. Retract travel remains full length. Because the adjuster only sets the mechanical stop position and not the piston area, output force equals a standard SDA of this bore, delivering 2513.3 N of push at 0.5 MPa.
This 80 mm bore unit carries a 25 mm piston rod and a PT3/8 air port. Its short riveted body saves axial mounting depth in tight machinery envelopes where longer profile designs will not fit. The end-of-stroke deceleration is handled by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion. Equipped with a built-in magnet (-S), the body sensor grooves accept AirTAC reed or electronic switches for position confirmation.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-20S Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-20S |
|---|---|
| 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 SDAJ80X45-20S
| 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 SDAJ80X45-20S Is Used
Press Fit Dial-In
Allows operators to fine-tune the 25-45 mm extend stop on the machine floor during press fit setups, ensuring precise seating without machining custom spacers.
Heavy Vertical Lift
Handles vertical lifting tasks up to roughly 128.1 kg with a 2:1 margin, where the 2513.3 N thrust at 0.5 MPa is sufficient and the compact body saves headroom.
Changeover Positioning
Speeds up product changeovers on packaging lines by letting technicians quickly turn the M20x1.5 screw to alter the extend endpoint for different package sizes.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X45-20S the Right Cylinder?
Choosing this 80 mm bore makes sense when you need substantial thrust but require on-site stroke tuning to dial in a final position. At 0.5 MPa it provides 2513.3 N of push force, offering a safe working load of roughly 1508 N (about 60 percent of capacity) and a vertical lift capability near 128.1 kg with a 2:1 safety margin. If your application requires less force, the neighbouring SDAJ63 drops to 1558.6 N at 0.5 MPa; stepping up to the SDAJ100 yields 3927 N for heavier demands.
Engineers integrating this model should confirm the 45 mm maximum stroke, the 20 mm adjustment window, the PT3/8 port, and the male M22x1.5 rod thread (or female M14x1.5). The -S magnet enables switch integration. Remember that a plain cylinder does not hold position when air is lost or the valve is centred; the piston drifts and the bumper only decelerates near the end. For load holding without live pressure, specify an external rod lock or a 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 SDAJ80X45-20S FAQ
This double-acting cylinder delivers 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 force is 513 kgf at 1.0 MPa. The adjustment screw does not alter these force values.
The M20x1.5 external screw shortens the extend stop by up to 20 mm, giving a usable forward range of 25 to 45 mm. The included -S magnet works with AirTAC reed or electronic switches mounted in the body grooves for end-position sensing.
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Standard models usually ship in 3-4 days.
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