Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-100S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 250mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ32 mm
- Stroke250 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-100S
The AirTAC SAIJ32X250-100-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 250 mm nominal stroke with an adjustable travel window of 150 to 250 mm, allowing precise end-position tuning without swapping the cylinder. In the 32 mm bore class, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa. Equipped with a SUS304 stainless steel rod, it handles minor side loads while resisting corrosion.
This model includes a magnet (-S) for position sensing and uses PT tapered ports. The rear adjuster acts strictly as a travel stop to decelerate the piston, not as a lock, meaning it cannot hold a load without live air pressure. For load-holding without air, an external rod lock or a SAIL cylinder is required. It supports AirTAC CMSE reed and DMSE electronic sensors mounted in the dual-side barrel grooves.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-100S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 250 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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, 27 mm |
| Max stroke | Up to 1000 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×250 | 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 Adjustable Cylinder SAIJ32 SAIJ32BX250-100S Is Used
Product Size Changeover
Dial in the exact 150 to 250 mm travel needed for different product lengths on a packaging line without changing out the physical cylinder.
Commissioning Fine-Tune
Trim the retract end-position by up to 100 mm during machine setup to perfect the alignment of tooling without adding external stopper blocks.
Variable End Stops
Use the rear adjuster screw to create a custom end-stop distance for delicate positioning tasks within the 32 mm bore force range.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX250-100S the Right Cylinder?
Choose this 32 mm bore if your application requires 402 N push force at 0.5 MPa. If your setup demands higher thrust, stepping up to the 40 mm bore yields 628 N. The 100 mm adjustment range is ideal for machines requiring significant product-size changeovers, letting you dial back the stroke from 250 mm down to 150 mm on the fly. Because the total stroke is 250 mm, ensure an external guide supports the load to prevent excessive rod side-loading.
When replacing an ISO 15552 cylinder, match the 32 mm bore, 250 mm stroke, PT port thread, and the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that SAIJ omits FB, CA, CB, and CR mounts. Remember that the rear screw stopper fine-tunes the retract end position but does not function as a brake; use a BSAI clamp-lock cylinder if you need to secure the load safely during air loss.
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 Adjustable Cylinder SAIJ32 SAIJ32BX250-100S FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. At 0.7 MPa, the push force increases to 563 N.
The rear adjuster screw allows you to shorten the effective stroke by up to 100 mm, creating a usable travel window of 150 to 250 mm. The adjuster acts as a stop to set the end position and does not lock the load without live air pressure.
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