Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-20
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 350mm 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
- Stroke350 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-20
The AirTAC SAIJ100X350-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 350 mm nominal stroke that can be dialed back by up to 20 mm, giving you a 330-350 mm usable travel window for precise end-position tuning during commissioning. In this configuration, the piston rod is SUS304 stainless steel (code B), and the ports are PT tapered threads.
Delivering 5497 N of push force at 0.7 MPa, this 100 mm bore profile cylinder integrates adjustable air cushions at both ends. The rear stopper screw allows you to trim the retract stroke without swapping out the cylinder body or adding external physical stops, which is highly effective for accommodating minor product size changes on a line.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 350 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 SAIJ100BX350-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×350 | 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 SAIJ100BX350-20 Is Used
Product Changeovers
Quickly adapt the retract end-position by up to 20 mm to handle slightly different product lengths on the same production line without changing cylinders.
Commissioning Fine-Tuning
Dial in the exact 330-350 mm travel window during machine setup to perfect end-of-stroke alignment without adding external mechanical stops.
Automated Assembly Stations
Leverage 5497 N of thrust at 0.7 MPa for heavy pressing or holding tasks while retaining the flexibility to trim the stroke for fixture variations.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-20 the Right Cylinder?
Choose this 100 mm bore if your application requires around 5497 N of push force at 0.7 MPa; stepping down to an 80 mm bore yields 3518 N, while moving up to 125 mm provides 8590 N. The adjustable stroke is specifically beneficial when you need variable end stops or fine-tuning at machine setup, whereas a fixed SAI cylinder locks you into one exact dimension.
Since the stroke is 350 mm, an external guide is recommended to prevent side-load wear on the 25 mm diameter rod and its M20x1.5 thread. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, consider an external rod lock or the SAIL/BSAI series. This model uses the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, 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 SAIJ100BX350-20 FAQ
At 0.7 MPa operating pressure, this 100 mm bore cylinder provides a push force of 5497 N and a pull force of 3681 N. It can deliver up to 7068 N at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the nominal 350 mm down to 330 mm. This creates a 330-350 mm usable window for fine-tuning end positions without replacing the cylinder.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.