Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40SB
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40SB 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 15 to 55 mm on the machine — no shims, no part change.
- BoreØ80 mm
- Max stroke55 mm
- Adjustable range15–55 mm
- Adjuster threadM20×1.5
- Port sizePT3/8
- CushionFixed NBR bumper (both ends)
About the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40SB
The AirTAC SDAJ80X55-40SB is a compact double-acting single-rod cylinder engineered for on-site extend-position tuning. By turning the external M20x1.5 adjuster screw, you shorten the forward stroke anywhere within a 15 to 55 mm window without swapping shims or components. Because the mechanism solely dictates the mechanical stop rather than altering the piston area, output force remains identical to a standard 80 mm bore SDA, delivering 2513.3 N of push at 0.5 MPa.
This variant features a built-in piston magnet for AirTAC reed or electronic switches, plus a male M22x1.5 threaded rod end for secure external mounting. The short riveted body drastically reduces axial footprint compared to conventional round-body alternatives, fitting into tight machine envelopes. End-of-travel deceleration relies on a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40SB Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40SB |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Max stroke | 55 mm |
| Adjustable range | 15 – 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 40 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 SDAJ80X55-40SB
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 80 | Bore size in mm. |
| ×55 | Maximum stroke length in mm. |
| -40 | 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 SDAJ80X55-40SB Is Used
Press Fit Depth Tuning
Dial in exact insertion depths on bearing presses by adjusting the extend stop from 15 to 55 mm on the fly, preventing over-travel on delicate 128 kg assemblies.
Variable Flap Folding
Adapt carton sealing machinery to different box heights quickly by turning the M20x1.5 screw, utilizing the full 2513.3 N push force to crease heavy corrugated board.
Z-Axis Trial Positioning
Probe vertical clamping heights during machine commissioning using the male M22x1.5 rod end, locking the mechanical stop once the optimal 15-55 mm clearance is found.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ80X55-40SB the Right Cylinder?
When sizing this unit, evaluate your force requirements against neighbouring bores. Dropping down to the 63 mm bore yields 1558.6 N of push at 0.5 MPa, whereas stepping up to the 100 mm bore provides 3927 N. This 80 mm model generates 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 configuration if your assembly process demands frequent changeovers or trial positioning of the extend endpoint. Confirm the 55 mm maximum stroke, 40 mm adjustment window, PT3/8 port, and the male M22x1.5 rod thread. Note that a plain cylinder drifts when air is lost or the valve is centered; the fixed bumper only decelerates near the end and the R screw acts as a mechanical stop, not a lock. For load holding without live pressure, integrate an external rod lock or pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 15–55 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 SDAJ80X55-40SB FAQ
This 80 mm bore cylinder delivers 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 screw shortens the extend endpoint within a 15 to 55 mm range without altering the 2513.3 N force. The included -S magnet enables position sensing with AirTAC reed or electronic switches.
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