Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X55-20B
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X55-20B is a genuine double-acting COMPACT cylinder (Ø100mm bore) whose extend end-position is set by an external M27×2.0 adjustment screw. You can dial the stroke anywhere from 35 to 55 mm on the machine — no shims, no part change.
- BoreØ100 mm
- Max stroke55 mm
- Adjustable range35–55 mm
- Adjuster threadM27×2.0
- Port sizePT3/8
- CushionFixed NBR bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X55-20B
The AirTAC SDAJ100X55-20B is a double-acting compact cylinder featuring an external adjustable extend stop. Turning the R (M27x2.0) screw lets you dial the outward stroke anywhere between 35 and 55 mm directly on your machine, eliminating the need for shims or part swaps. Because the adjuster only sets the mechanical stop position, output force remains identical to a standard SDA of this bore, delivering 3927 N of push at 0.5 MPa.
This model uses a short riveted body to save axial mounting depth where a round-body or profile cylinder will not fit. It features a male-thread piston rod (M26x1.5) and a PT3/8 air port. End-of-travel deceleration is handled by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion. Note that this specific SKU lacks a piston magnet, so it cannot support reed or electronic switches without upgrading to the -S variant.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X55-20B Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X55-20B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 55 mm |
| Adjustable range | 35 – 55 mm |
| Adjuster thread (R) | M27×2.0 |
| Port size | PT3/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M18×1.5 F / M26×1.5 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3525 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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 SDAJ100X55-20B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 100 | 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 SDAJ100X55-20B Is Used
Heavy Press Fitment
Dial in the 35-55 mm extend stop during setup to apply exactly 3927 N of push force at 0.5 MPa without over-traveling delicate bearings.
Multi-Product Clamping
Turn the M27x2.0 adjuster screw on the fly to accommodate varying workpiece heights on a single fixture, avoiding part changes.
Vertical Lift Stops
Lift loads up to 200.2 kg with a 2:1 safety margin and fine-tune the downward extend position to prevent hard bottoming.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X55-20B the Right Cylinder?
When sizing this 100 mm bore actuator, compare its 3927 N push at 0.5 MPa against adjacent options. Stepping down to the SDAJ80 yields 2513.3 N, whereas this 100 mm bore provides a safe working load of roughly 2356 N (about 60% of the 0.5 MPa figure) and a vertical lift capacity of approximately 200.2 kg with a 2:1 margin. Choose this model if your fixture requires heavy push force combined with on-site stroke tuning to perfect a press or clamping position.
Confirm your requirements against these specs: 100 mm bore, 55 mm maximum stroke, 20 mm adjustment window, PT3/8 port, and a male M26x1.5 rod thread. Remember that a plain SDAJ does not hold position or load when air is lost or the valve is centred; the fixed bumper only decelerates near the end of travel. 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 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 M27×2.0 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 SDAJ100X55-20B FAQ
At 0.5 MPa it provides 3927 N push and 3524.9 N pull. At 0.7 MPa it provides 5497.8 N push and 4934.8 N pull. The theoretical maximum push is 801 kgf at 1.0 MPa.
The external R (M27x2.0) screw acts as a mechanical stop, allowing you to shorten the extend stroke from the 55 mm maximum down to 35 mm. It sets the end position without changing the force, and it is not a mid-stroke lock.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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