Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 375mm 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
- Stroke375 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-30S
The AirTAC SAIJ100X375-30-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 345 to 375 mm, allowing you to dial back the nominal 375 mm stroke by up to 30 mm during commissioning. In the 100 mm bore class, it generates 3927 N of push force and 3681 N of pull force at 0.5 MPa, making it well-suited for heavy positioning tasks.
This unit includes a standard carbon steel piston rod with an M20x1.5 thread and PT tapered port threads. The extruded aluminum barrel incorporates sensor grooves on both sides, and because this is the -S variant, it is equipped with a magnet for use with AirTAC CMSE reed and DMSE electronic solid-state switches. It uses variable air cushions at both ends and relies on a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 375 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 SAIJ100X375-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×375 | 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 SAIJ100X375-30S Is Used
Machine Changeover
Dial in the exact end position from 345 to 375 mm when switching production formats, eliminating the need to reposition physical hard stops.
Variable Product Routing
Adjust the retraction point on the fly to handle different package sizes on a packaging line without changing out the actuator.
Commissioning Fine-Tuning
Trim the final 30 mm of travel during initial setup to perfectly time machine sequencing without adding external bumpers.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-30S the Right Cylinder?
Selecting this 100 mm bore over a smaller 80 mm option steps the thrust up significantly from 2513 N to 3927 N at 0.5 MPa, which is critical if you are moving heavier pallets or actuators. The adjustable stroke is chosen over a fixed-stroke SAI when you need variable end-stops for product size changeovers on a line without physically swapping out the cylinder or adding external stops. To match this ISO 15552 interchangeable replacement exactly, specify: 100 mm bore, 375 mm stroke, 30 mm adjustment, PT ports, your required mounting from the SAIJ subset, and the -S magnet.
Because the 375 mm stroke is relatively long, the M20x1.5 rod and carbon steel piston are robust but still require an external guide to prevent excessive side-loading damage to the barrel seals. Remember that the rear adjuster is a travel stop, not a locking device; this plain SAIJ cylinder will not hold its load without live air pressure, so for fail-safe load holding you should look at the SAIL or BSAI series instead.
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 SAIJ100X375-30S FAQ
At 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 acts as a stopper that lets you shorten the effective stroke from its nominal 375 mm down to 345 mm. It is a travel stop for end-position tuning, not a lock, and does not hold the load without live air pressure.
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