Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X85-20B
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X85-20B 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 65 to 85 mm on the machine — no shims, no part change.
- BoreØ100 mm
- Max stroke85 mm
- Adjustable range65–85 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 SDAJ100X85-20B
The AirTAC SDAJ100X85-20B is a double-acting compact cylinder featuring an external adjustable extend stop. A M27x2.0 adjuster screw lets you dial the forward end-position anywhere between 65 and 85 mm directly on the machine, eliminating the need for shims or part swaps. Because the adjuster 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.
This model uses a short riveted body to save axial mounting depth where a larger profile cylinder will not fit. It includes a male M26x1.5 piston rod thread (option B) and a fixed NBR bumper at each end to absorb end-of-stroke shock. Note that this specific SKU lacks a piston magnet, so it cannot host reed or electronic switches without upgrading to the -S variant.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X85-20B Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X85-20B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 85 mm |
| Adjustable range | 65 – 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 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 SDAJ100X85-20B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 100 | Bore size in mm. |
| ×85 | 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 SDAJ100X85-20B Is Used
Heavy Press Tuning
Dial in the 65-85 mm extend stop on a heavy stamping press to accommodate varying material thicknesses without changing out hard stops.
Automated Welding Clamp
Leverage the 3927 N push at 0.5 MPa to securely clamp heavy steel assemblies, using the male M26x1.5 rod for robust tooling attachment.
Vertical Lift Fixture
Lift loads up to roughly 200.2 kg with a 2:1 safety margin, making fine adjustments to the extend position during initial fixture commissioning.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X85-20B the Right Cylinder?
When sizing this 100 mm bore actuator, evaluate your force requirements both ways. Stepping down to an SDAJ80 yields 2513.3 N of push at 0.5 MPa, which may be insufficient for heavy loads, whereas this 100 mm option provides a robust 3927 N. If your application demands extreme force beyond the theoretical 801 kgf maximum at 1.0 MPa, you would need to look outside the compact SDA family. This cylinder is ideal for operators who need on-machine stroke tuning during frequent changeovers. Confirm your requirements for a 100 mm bore, 85 mm maximum stroke, 20 mm adjust window, PT3/8 port, and the male M26x1.5 rod thread.
Keep in mind that a plain SDAJ does not hold position or carry load if air pressure drops or the valve is centered. The fixed NBR bumper only decelerates the stroke near its end; it is not a lock or brake. For vertical or suspended loads requiring safety holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 65–85 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 SDAJ100X85-20B FAQ
This 100 mm bore double-acting cylinder provides 3927 N push and 3524.9 N pull at 0.5 MPa. At 0.7 MPa, push increases to 5497.8 N and pull to 4934.8 N. The theoretical maximum push force is 801 kgf at 1.0 MPa.
The external M27x2.0 screw acts as a mechanical stop, allowing you to shorten the extend stroke from the 85 mm maximum down to 65 mm. It does not alter the cylinder's force output, and the retract stroke remains full length.
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