Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 325mm 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
- Stroke325 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-50
The AirTAC SAIJ100X325-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel by up to 50 mm. This creates a usable 275-325 mm travel window, enabling fine end-position tuning at commissioning without swapping the cylinder or bolting on external stops. It delivers a robust 3927 N push force at 0.5 MPa, scaling up to 7068 N at 0.9 MPa.
Built with a SUS304 stainless steel rod (option B) for corrosion resistance, this model uses PT tapered port threads (G1/2) and operates at speeds from 30-800 mm/s. The rear adjuster acts purely as a mechanical stop to set deceleration alongside the variable air cushions; it does not hold the load without live air. For true position holding, consider the SAIL or BSAI series.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 325 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 SAIJ100BX325-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×325 | 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 SAIJ100BX325-50 Is Used
Variable End Stops
Dial in precise end positions during machine setup without fabricating custom external stoppers, using the 50 mm rear adjustment screw.
Product Changeover
Quickly adapt the 275-325 mm travel window on automated lines when switching between different product sizes or packaging formats.
Long-Stroke Forming
Leverage the 3927 N push force at 0.5 MPa for pressing or forming tasks, while relying on the stainless rod for corrosion resistance.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-50 the Right Cylinder?
Choose this 100 mm bore when you need substantial thrust—stepping down to an 80 mm bore yields 2513 N at 0.5 MPa, while this 100 mm bore provides 3927 N. The adjustable stroke is ideal for product-size changeovers on a line, allowing operators to dial in the 275-325 mm travel window on the fly rather than machining custom spacers. To match this ISO 15552 cylinder, specify the 100 mm bore, 325 mm stroke, 50 mm adjustment, PT port thread, and the SUS304 (B) rod material.
Because the 325 mm stroke is relatively long, the 25 mm rod diameter and M20x1.5 rod thread carry good side-load capacity, but an external guide is still recommended to prevent rod binding. Note that SAIJ uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. As a non-magnet model, it lacks internal sensors; adding the -S option enables AirTAC CMSE reed and DMSE electronic switches in the dual-side sensor grooves.
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 SAIJ100BX325-50 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 0.9 MPa, the push force increases to 7068 N.
The rear adjusting screw acts as a mechanical stop that lets you shorten the 325 mm nominal stroke by up to 50 mm, providing a usable 275-325 mm travel window. It sets the end position but does not lock or 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 SAIJ100BX325-50
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.