Airtac Adjustable Cylinder SAIJ32 SAIJ32BX950-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX950-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 950mm 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
- Stroke950 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX950-40
The AirTAC SAIJ32X950-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that allows you to trim the effective travel back by up to 40 mm. This yields a usable movement window of 910 to 950 mm, enabling precise end-position tuning during commissioning without swapping out the physical actuator. It delivers a push force of 402 N and a pull force of 345 N at 0.5 MPa operating pressure.
This specific SKU is configured with a SUS304 stainless steel rod (option B) for superior corrosion resistance, paired with PT tapered port threads. Because the 950 mm stroke is lengthy for a 32 mm bore, an external guide is highly recommended to prevent excessive side-loading on the rod. The rear adjuster acts purely as a mechanical stop to set the retraction end-point; it does not hold the load if air pressure drops. For true load-holding without live air, consider the SAIL or BSAI series.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX950-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX950-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 950 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 SAIJ32BX950-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×950 | 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 SAIJ32BX950-40 Is Used
Machine Changeover
Dial in the 910-950 mm travel window during product size changes without swapping the cylinder or adding external stopper blocks to the fixture.
Variable End-Stop Positioning
Fine-tune the retraction end-point at commissioning to align pushers or stops perfectly along a long 950 mm stroke conveyor line.
Long-Stroke Assembly Press
Use the 40 mm adjustment range to set precise lower end-points for a light-duty 402 N assembly press, compensating for mechanical wear over time.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX950-40 the Right Cylinder?
Choose this 32 mm bore adjustable-stroke cylinder when your machine setup requires variable end-stops or frequent product-size changeovers, allowing you to dial in the 910-950 mm travel window on the fly rather than machining external stopper blocks. If your application requires higher thrust, stepping up to the 40 mm bore increases push force to 628 N at 0.5 MPa. Conversely, if you need less travel and force, the smaller options should be evaluated.
When replacing an ISO 15552 cylinder, ensure you match the 32 mm bore, 950 mm nominal stroke, 40 mm adjustment range, PT port thread, and the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that this unit lacks a magnet, so electronic DMSE or reed CMSE sensors cannot be used for position feedback. Given the 950 mm stroke, always support the load with an external guide to protect the 12 mm rod from deflection.
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 SAIJ32BX950-40 FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides a push force of 402 N and a pull force of 345 N. At the maximum 1.0 MPa pressure, it delivers up to 82 kgf of thrust.
The rear adjusting screw acts as a mechanical stop that lets you shorten the nominal 950 mm stroke by up to 40 mm, creating a usable travel window of 910 to 950 mm. It only sets the end position and does not lock the load without live air pressure.
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