Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 275mm 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
- Stroke275 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-50S
The AirTAC SAIJ32X275-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 402N of push force at 0.5MPa and features a 12mm carbon steel core rod upgraded with a SUS304 stainless steel outer surface (code B) for superior corrosion resistance. The integrated -S magnet enables direct mounting of CMSE reed and DMSE electronic sensors along the dual side grooves.
With a nominal 275mm stroke and a 50mm adjustment range, this SKU provides a usable travel window of 225-275mm. This allows you to dial back the retract end-position by up to 50mm during commissioning without swapping the cylinder or adding external stops. The rear screw acts purely as a travel stop for end-position tuning and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 275 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 SAIJ32BX275-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×275 | 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 SAIJ32BX275-50S Is Used
Variable End-Stop Setup
Fine-tune the retract position within the 225-275mm window during machine commissioning to perfectly align tooling without physically replacing the actuator.
Product Changeover
Quickly adapt automated assembly lines for different product lengths by dialing back the stroke up to 50mm, minimizing downtime between production runs.
Corrosion-Resistant Actuation
Leverage the SUS304 stainless steel rod option for light-duty packaging or handling tasks in washdown environments where standard carbon steel rods would degrade.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX275-50S the Right Cylinder?
Choose this 32mm bore when you need precise variable end-stops for product changeovers on a line, stepping up from a 25mm bore if you require more than 402N of thrust at 0.5MPa. If your application demands higher force, the neighbouring 40mm bore provides 628N at the same pressure. The PT tapered port threads ensure a tight, reliable pneumatic seal.
Since the 275mm stroke is relatively long for a 32mm bore, the 12mm rod and M10x1.25 rod thread carry a moderate side-load capacity, but an external guide is recommended for unsupported loads. For load-holding without live air, this cylinder cannot act as a brake; consider the SAIL or BSAI series instead. To match this ISO 15552 interchangeable cylinder, specify bore 32, stroke 275, adjust 50, PT port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, 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 Adjustable Cylinder SAIJ32 SAIJ32BX275-50S FAQ
At 0.5MPa operating pressure, this 32mm bore cylinder provides 402N of push force and 345N of pull force. At the maximum 1.0MPa pressure, it delivers up to 82kgf.
The rear adjuster screw lets you mechanically shorten the effective stroke from 275mm down to a minimum of 225mm. It functions as a hard travel stop for end-position tuning and does not lock or hold the load without continuous air pressure.
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