Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-40S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 115mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke115 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-40S
The AirTAC SAIJ100X115-40-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 75 to 115 mm, allowing you to dial back the nominal 115 mm stroke by up to 40 mm during commissioning. This bore delivers 3927 N of push force at 0.5 MPa, making it suitable for heavy positioning tasks.
This specific configuration includes a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and a magnet for CMSE reed or DMSE solid-state sensors. The extruded aluminum barrel includes sensor grooves on both sides, and the unit uses a G1/2 port. It supports a speed range of 30-800 mm/s and relies on adjustable air cushions at both ends to decelerate the load.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 115 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 | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×115 | 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 SAIJ100AX115-40S Is Used
Variable End-Position Tuning
Fine-tune the retract distance within the 75-115 mm window during machine setup to accommodate varying material thicknesses without swapping hardware.
Product Changeover
Quickly adjust the stroke stopper on the production line when switching to a new package size, minimizing downtime and eliminating external stop blocks.
Heavy Clamping Alignment
Leverage the 3927 N push force at 0.5 MPa to securely clamp parts, using the rear screw to precisely set the clamping depth and prevent overtravel.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX115-40S the Right Cylinder?
Choose this 100 mm bore when you need substantial thrust—3927 N at 0.5 MPa or 5497 N at 0.7 MPa. If your application requires less force, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa, whereas moving up to a 125 mm bore provides 6136 N. The adjustable rear stopper is selected over a fixed SAI cylinder when you need variable end-stops for product changeovers without adding external physical stops.
When specifying a replacement, match the 100 mm bore, 115 mm nominal stroke, 40 mm adjuster, PT tapered port thread, and the -S magnet option. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding without pressure, consider an SAIL or BSAI cylinder. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ100AX115-40S FAQ
At a 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw allows you to shorten the effective stroke by up to 40 mm from the 115 mm nominal length, creating a 75 to 115 mm travel window. It acts as a mechanical stop and does not lock the load without live air pressure.
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