Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X70-20B
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X70-20B 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 50 to 70 mm on the machine — no shims, no part change.
- BoreØ100 mm
- Max stroke70 mm
- Adjustable range50–70 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 SDAJ100X70-20B
The AirTAC SDAJ100X70-20B is a compact double-acting single-rod cylinder built with a short riveted body to minimize axial mounting depth in tight machinery layouts. An external R (M27x2.0) adjuster screw lets you dial the extend stop down by 20 mm on the machine, yielding a usable extend range of 50 to 70 mm without swapping shims or parts. Retract travel remains full length.
This 100 mm bore generates 3927 N push at 0.5 MPa, matching the output of a standard SDA because the adjuster sets the mechanical stop, not the piston area. End shock is handled by a fixed NBR bumper rather than an adjustable air cushion. This specific SKU features a male M26x1.5 piston rod thread and lacks a piston magnet, so it cannot host reed or electronic switches.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X70-20B Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X70-20B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 70 mm |
| Adjustable range | 50 – 70 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 SDAJ100X70-20B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 100 | Bore size in mm. |
| ×70 | 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 SDAJ100X70-20B Is Used
Heavy Press Positioning
Dial the 50-70 mm extend stop to set exact pressing depth for thick materials, leveraging the 3927 N thrust at 0.5 MPa without part changes.
Large Fixture Clamping
Accommodate varying workpiece heights on a machining line by turning the R screw, securely clamping parts with the male M26x1.5 rod end.
Vertical Lift Dampening
Lift up to 200.2 kg with a 2:1 safety margin and fine-tune the extend endpoint to avoid bottoming out, adding external shock absorbers for high-speed approaches.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X70-20B the Right Cylinder?
When sizing this bore, evaluate both neighbors: the SDAJ80 delivers 2513.3 N push at 0.5 MPa, whereas this 100 mm bore yields 3927 N, providing a safe working load of roughly 2356 N (about 60% of the 0.5 MPa figure) for a 2:1 vertical lift margin of 200.2 kg. Choose the 100 mm if the 80 mm lacks thrust, but avoid oversizing if 2513.3 N suffices, as the larger body consumes more radial space. This configuration includes a 70 mm stroke, a 20 mm adjust window, a PT3/8 port, and a male M26x1.5 rod thread.
Operators needing frequent on-site stroke tuning during changeovers will benefit from the external screw. Remember that a plain cylinder does not hold its load on air loss or valve centering; the piston drifts and the fixed bumper only decelerates near the end. For secure load holding without live pressure, install an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 50–70 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 SDAJ100X70-20B 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 is 5497.8 N and pull is 4934.8 N. The theoretical maximum push is 801 kgf at 1.0 MPa.
The external M27x2.0 screw shortens the extend stroke by up to 20 mm, allowing on-site adjustment between 50 and 70 mm. This SKU has no piston magnet (-S omitted), so it cannot accept reed or electronic switches; order the -S variant if sensing is required.
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