Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-30S 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 SAIJ100BX375-30S
The AirTAC SAIJ100X375-30-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a substantial 5497N push force at 0.7 MPa, making it suitable for heavy-duty positioning. The built-in adjuster allows you to trim the nominal 375 mm stroke back by up to 30 mm, creating a precise 345-375 mm usable travel window for product changeovers without external stops.
This variant includes a SUS304 stainless steel rod for superior corrosion resistance and comes with a magnet for CMSE / DMSE sensors. It uses a PT G1/2 port and relies on variable air cushions at both ends for end-of-stroke deceleration. The rear adjuster acts strictly as a travel stop, meaning the cylinder cannot hold a load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-30S |
|---|---|
| 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 SAIJ100BX375-30S
| 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 SAIJ100BX375-30S Is Used
Variable End-Stop Positioning
Dial in the exact end-of-stroke position within the 345-375 mm window during machine setup, ensuring perfect alignment for heavy workpieces without swapping cylinders.
Product-Size Changeover
Quickly adapt a conveyor diverter or pusher mechanism to handle different package lengths on the fly by turning the rear adjuster to shorten the effective travel.
Heavy-Duty Assembly Press
Leverage the 5497N output force at 0.7 MPa to seat large components, using the adjustable stroke to fine-tune the pressing depth for different product variants.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-30S the Right Cylinder?
Choose this 100 mm bore when an 80 mm bore (providing 3518N push at 0.7 MPa) is insufficient, but a 125 mm bore is oversized. An adjustable stroke is selected over a fixed SAI when a machine requires fine end-position tuning during commissioning or product-size changes. Because the 375 mm stroke exceeds 300 mm, an external guide rail is strongly recommended to prevent rod side-loading and premature seal wear.
For load-holding without continuous air pressure, note that the rear stopper and cushions do not function as a lock; you must use an external rod lock, a pilot-operated check valve, or AirTAC SAIL / BSAI cylinders. This SAIJ model is dimensionally interchangeable per ISO 15552 and uses the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR mounts.
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 SAIJ100BX375-30S FAQ
At 0.7 MPa operating pressure, this 100 mm bore cylinder provides a push force of 5497N and a pull force of 3681N. It can deliver a maximum push force of 7068N at 0.9 MPa.
The rear adjuster acts as a mechanical stop that allows you to shorten the nominal 375 mm stroke by up to 30 mm, providing a usable travel window of 345-375 mm. It is a travel stop, not a lock, so it cannot hold the load without live air pressure.
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 SAIJ100BX375-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.