Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 135mm 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
- Stroke135 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-50S
The AirTAC SAIJ32X135-50-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 402N push force at 0.5 MPa and incorporates a built-in magnet for position sensing. With a nominal 135mm stroke and a 50mm adjustment range, it delivers a usable travel window of 85 to 135mm, allowing you to dial in exact end positions without adding external stops.
This variant uses a SUS304 stainless steel rod for superior corrosion resistance and carries PT tapered port threads (G1/8). The extruded aluminum barrel includes sensor grooves on both sides, seamlessly accepting CMSE reed and DMSE electronic solid-state switches. The rear adjuster acts purely as a travel stop for fine-tuning at commissioning; it does not lock the load, so a SAIL or BSAI model is required if you need to hold position without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 135 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 SAIJ32BX135-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×135 | 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 SAIJ32BX135-50S Is Used
Variable End-Stop Tuning
Dial in the exact clamping distance on test fixtures by adjusting the rear screw, trimming the travel anywhere from 85 to 135mm on the fly.
Product Changeover
Quickly adapt a packaging line for different carton sizes by turning the rear stopper, eliminating the need to physically swap out the entire cylinder.
Stainless Rod Positioning
Leverage the SUS304 stainless steel rod and CMSE/DMSE sensor compatibility for precise, repeatable positioning in light manufacturing environments.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX135-50S the Right Cylinder?
Choose this 32mm bore actuator when your application requires precise end-position tuning during machine setup or product changeover. It delivers 345N of pull force at 0.5 MPa. If your assembly needs more thrust, stepping up to the 40mm bore increases the push force to 628N. Conversely, if you need a fixed travel distance and want to simplify the BOM, the standard SAI cylinder is a direct alternative.
When replacing an ISO 15552 cylinder, match the 32mm bore, 135mm stroke, 50mm adjustment, PT port thread, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting the FB, CA, CB, and CR styles. For this 135mm stroke, the 12mm rod and M10x1.25 thread handle standard loads well, but long unsupported strokes always require an external guide to prevent side-loading damage.
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 SAIJ32BX135-50S FAQ
At 0.5 MPa operating pressure, this 32mm bore cylinder provides 402N of push force and 345N of pull force. It can reach a maximum of 80kgf (784N) at 1.0 MPa.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the nominal 135mm down to 85mm. It only sets the end position and does not lock the load without live air pressure.
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