Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X85-50
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X85-50 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 85 mm on the machine — no shims, no part change.
- BoreØ100 mm
- Max stroke85 mm
- Adjustable range35–85 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 SDAJ100X85-50
The AirTAC SDAJ100X85-50 is a compact double-acting single-rod cylinder built for heavy-duty positioning where the extend endpoint must be dialed in on the machine. An external M27x2.0 adjuster screw lets you shorten the forward stroke anywhere between 35 and 85 mm without changing parts, making it highly effective for commissioning large actuators. Because the screw only sets the mechanical stop and not the piston area, output force remains identical to a standard SDA of this bore, delivering 3927 N of push at 0.5 MPa.
Housed in a short riveted body, this design saves substantial axial mounting depth compared to conventional large-bore units, fitting into tight heavy-machinery frames. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning external shock absorbers are recommended for high-energy approaches. This specific SKU lacks a piston magnet, so it cannot host reed or electronic switches; choose the -S option if sensing is required.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X85-50 Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X85-50 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 85 mm |
| Adjustable range | 35 – 85 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 50 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 SDAJ100X85-50
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 100 | Bore size in mm. |
| ×85 | Maximum stroke length in mm. |
| -50 | 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 SDAJ100X85-50 Is Used
Heavy Press Fit Tuning
Dial in the exact 35 to 85 mm insertion depth for large bearings on an assembly line, using the M27x2.0 screw to perfect the push force without swapping physical spacers.
Large Mold Changeover
Adapt the extend stop quickly during heavy mold or tooling swaps, leveraging the 3927 N push capacity to seat components while fine-tuning the final position on the fly.
Vertical Lift Dampening
Raise a 200.2 kg payload with a 2:1 safety margin, relying on the fixed NBR bumper to absorb the end shock while setting the precise lower stop via the external adjuster.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X85-50 the Right Cylinder?
When sizing this 100 mm bore actuator, compare its 3927 N push at 0.5 MPa against neighboring bores. Stepping down, the SDAJ80 delivers 2513.3 N at the same pressure, which may be insufficient for heavy loads, whereas stepping up is not available in this compact family. A practical safe working load is about 2356 N (roughly 60 percent of the 0.5 MPa rating), allowing a vertical lift of approximately 200.2 kg with a 2:1 safety margin. Choose this 85 mm stroke with a 50 mm window if your fixture requires extensive on-site endpoint tuning across a wide 35 to 85 mm range.
Confirm the PT3/8 air port and the female M18x1.5 rod-end thread match your mechanical interface, and note the 32 mm piston rod diameter helps resist deflection under high thrust. Remember that a plain SDAJ does not hold position or load when air is lost or the valve is centered; the fixed bumper only decelerates near the end of travel and the adjuster is a mechanical stop, not a lock. 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 35–85 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 SDAJ100X85-50 FAQ
This 100 mm bore double-acting cylinder features a PT3/8 air port and delivers 3927 N push and 3524.9 N pull at 0.5 MPa. At 0.7 MPa it provides 5497.8 N push and 4934.8 N pull. The theoretical maximum push force is 801 kgf at 1.0 MPa.
The external M27x2.0 screw shortens the extend stroke by up to 50 mm, allowing you to set the forward stop anywhere between 35 and 85 mm while retract remains full. This specific SKU has no piston magnet and cannot take a switch; you must select the -S variant to use AirTAC reed or electronic sensors.
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