Airtac SAIJ100 Adjustable Cylinder SAIJ100AX55-20
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX55-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 55mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke55 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- 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 SAIJ100 Adjustable Cylinder SAIJ100AX55-20
It features a SUS420J2 stainless steel rod and PT tapered ports. The integrated adjuster allows you to dial back the 55mm nominal stroke by up to 20mm, creating a precise 35-55mm usable travel window for fine-tuning end positions during commissioning.
Instead of swapping cylinders or adding external stops to perfect a machine setup, the rear screw acts as a hard travel stop to set the retract position. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX55-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX55-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 55 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX55-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×55 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX55-20 Is Used
Machine Setup Calibration
Dial in the exact 35-55mm retract position during initial commissioning without machining custom spacers.
Product Size Changeovers
Quickly adjust the end-stop depth on a packaging line when switching between different product formats.
Variable End-Stop Forming
Provide precise mechanical stops for pressing or forming tasks that require slight depth adjustments.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX55-20 the Right Cylinder?
Select this 100mm bore when an application requires substantial thrust, stepping up from a 63mm bore that provides 1559N at 0.5 MPa, or down from a 125mm bore offering 6136N. An adjustable stroke is ideal for product changeovers on a line, allowing operators to vary the end-stop without replacing the entire actuator. For exact ISO 15552 replacement matching, verify the 100mm bore, 55mm stroke, 20mm adjustment, PT port threads, and mounting style.
Note that the rear adjuster functions strictly as a travel stop and does not lock or hold the load without continuous air pressure. If your setup requires dead-load holding, consider the SAIL or BSAI series. Because the nominal stroke is under 300mm, the 25mm rod handles side loads well without requiring an external guide.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX55-20 FAQ
The rear adjuster screw lets you shorten the 55mm nominal stroke by up to 20mm, resulting in a usable travel window of 35-55mm. It acts as a mechanical stop to fine-tune the retract position without needing live air to hold it.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ100 Adjustable Cylinder SAIJ100AX55-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.