Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-20S
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-20S 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 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 SDAJ80X55-20S
The AirTAC SDAJ80X55-20S is a compact double-acting single-rod cylinder featuring an external adjustable extend stop. By turning the R (M20x1.5) screw, technicians can shorten the forward stroke on-site across a 35 to 55 mm window without swapping shims or components. Because the adjuster merely sets the mechanical end position, output force remains identical to a standard SDA of this bore, delivering 2513.3 N of push at 0.5 MPa.
This 80 mm bore actuator utilizes a short riveted body to minimize axial mounting depth in tight machinery layouts. It relies on a fixed NBR bumper at each end to decelerate the piston, meaning it is not an adjustable air cushion. The unit includes a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic solid-state switches along the body grooves.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-20S Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-20S |
|---|---|
| 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 SDAJ80X55-20S
| 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 SDAJ80X55-20S Is Used
Heavy Press Fit Tuning
Dial in the exact 35-55 mm extension on a multi-product assembly line to seat bearings without over-traveling, leveraging the 2513.3 N push force for reliable insertion.
Variable Height Elevation
Adjust the mechanical stop on the fly for lifting platforms handling mixed pallet sizes, safely managing up to 128.1 kg vertical loads with a 2:1 margin.
Compact Clamping Station
Fit the short riveted body into dense automated cells to clamp heavy weldments, tweaking the 20 mm window during setup to avoid deforming softer materials.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-20S the Right Cylinder?
When sizing this model, evaluate the neighboring bores to match your force requirements precisely. Stepping down to the SDAJ63 yields 1558.6 N of push at 0.5 MPa, whereas moving up to the SDAJ100 provides 3927 N. The SDAJ80X55-20S is optimal when your application demands approximately 2513.3 N at 0.5 MPa, translating to a safe working load of roughly 1508 N or a vertical lift capacity of about 128.1 kg with a 2:1 safety margin. Choose this specific unit if your fixture requires frequent on-machine stroke tuning to accommodate varying part heights.
Confirm the 80 mm bore, 55 mm maximum stroke, 20 mm adjustment window, PT3/8 air port, and the female M14x1.5 rod-end thread suit your mounting interface. The included magnet supports position sensing, but remember that a plain cylinder does not hold a load if air pressure drops or the valve centers; the piston will drift. For load holding without live pressure, integrate an external rod lock or a pilot-operated check valve.
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 SDAJ80X55-20S FAQ
This 80 mm bore double-acting cylinder provides 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 push of 513 kgf at 1.0 MPa.
The M20x1.5 R screw mechanically shortens the extend end position from 55 mm down to 35 mm without altering the output force. The built-in magnet (-S) allows you to track piston position using AirTAC reed or electronic switches.
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1-Year Warranty
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Standard models usually ship in 3-4 days.
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