Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-30S
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-30S 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 20 to 50 mm on the machine — no shims, no part change.
- BoreØ80 mm
- Max stroke50 mm
- Adjustable range20–50 mm
- Adjuster threadM20×1.5
- Port sizePT3/8
- CushionFixed NBR bumper (both ends)
About the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-30S
The AirTAC SDAJ80X50-30S 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 extend stroke on-site between 20 and 50 mm without shims or part changes. The adjuster sets the mechanical stop position, so output force remains identical to a standard SDA of this bore, delivering 2513.3 N push at 0.5 MPa.
Its short riveted body saves axial mounting depth where larger profile cylinders will not fit. The piston rod measures 25 mm, and the -S suffix indicates a built-in magnet for AirTAC reed or electronic switches. End deceleration relies on a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-30S Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-30S |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Max stroke | 50 mm |
| Adjustable range | 20 – 50 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 30 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 SDAJ80X50-30S
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 80 | Bore size in mm. |
| ×50 | Maximum stroke length in mm. |
| -30 | 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 SDAJ80X50-30S Is Used
Heavy Clamping Changeover
Dial the extend stop from 20 to 50 mm to accommodate varying part widths on a machining fixture without fabricating new spacers.
Vertical Lift Dampening
Lift loads up to 128.1 kg with a 2:1 margin, relying on the fixed NBR bumper to absorb end shock at the top of the travel.
Press Fit Positioning
Fine-tune the 2513.3 N extend thrust on the assembly line to seat components precisely before the final stroke end.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X50-30S the Right Cylinder?
When sizing this 80 mm bore, compare it both ways: stepping down to an SDAJ63 yields 1558.6 N push at 0.5 MPa, while stepping up to an SDAJ100 provides 3927 N. This SDAJ80X50-30S provides a safe working load of roughly 1508 N (about 60% of its 0.5 MPa rating), translating to a vertical lift capacity near 128.1 kg with a 2:1 safety margin.
Choose this specific model if your machine commissioning requires frequent trial positioning or changeover. It includes the S magnet option and a female rod-end thread (M14x1.5). Note that a plain cylinder does not hold position on air loss; 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 20–50 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 SDAJ80X50-30S FAQ
At 0.5 MPa it provides 2513.3 N push and 2267.8 N pull. At 0.7 MPa it provides 3518.6 N push and 3175 N pull. The theoretical maximum push is 513 kgf at 1.0 MPa.
The -S suffix means a built-in magnet is present for AirTAC reed or electronic switches. The M20x1.5 adjuster screw mechanically shortens the extend stop by up to 30 mm (range 20-50 mm); it does not alter the force or lock the piston mid-stroke.
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