Airtac SAIJ100 Adjustable Cylinder SAIJ100X35-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X35-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 35mm 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
- Stroke35 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X35-20S
The AirTAC SAIJ100X35-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers 3927N of push force at 0.5 MPa and provides a usable travel window of 15 to 35 mm, letting you dial in the exact retract position without swapping hardware.
This extruded aluminum barrel unit includes a standard carbon steel rod and a magnet for CMSE reed and DMSE electronic sensors. It uses a PT tapered G1/2 port and relies on variable air cushions at both ends to decelerate the load.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X35-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X35-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 35 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 SAIJ100X35-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×35 | 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 SAIJ100X35-20S Is Used
Machine Setup Calibration
Fine-tune the 15-35mm travel window during initial commissioning to perfectly align pressing or clamping positions without adding external shims.
Product Size Changeover
Quickly adjust the retract end-stop on packaging lines when switching between different product sizes, keeping downtime to a minimum.
Variable End-Stop Positioning
Use the rear screw to establish a precise, repeatable end position for assembly processes that require slight travel tweaks on the fly.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X35-20S the Right Cylinder?
Choose this 100mm bore when a 63mm cylinder (1559N push) is too weak but an 80mm (2513N) is insufficient. The adjustable stroke is ideal for machine setup and product changeover, allowing you to fine-tune the end stop at commissioning rather than machining external spacers. Because the rear adjuster is a travel stop and not a lock, this cylinder will not hold a load without live air; for true position holding, consider a SAIL or BSAI model. To match this ISO 15552 replacement, specify the 100mm bore, 35mm stroke, 20mm adjustment, PT port, and the -S magnet.
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 SAIJ100X35-20S FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At 0.9 MPa, the push force increases to 7068N.
The rear adjuster acts as a mechanical stop that lets you shorten the 35mm nominal stroke by up to 20mm, giving a usable travel window of 15 to 35mm. It only sets the travel end and does not lock or hold the load without continuous air pressure.
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