Airtac Adjustable Cylinder SAIJ32 SAIJ32BX950-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX950-40S 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 SAIJ32BX950-40S
The AirTAC SAIJ32X950-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a SUS304 stainless steel rod and a built-in magnet for position sensing. With a nominal stroke of 950 mm and a 40 mm adjustment range, you can dial back the retract end-position to achieve an exact usable travel window between 910 and 950 mm without adding external stops. Delivering 402 N of push force at 0.5 MPa, it suits lighter-duty positioning tasks.
The extruded aluminum barrel includes sensor grooves on both sides, directly supporting AirTAC CMSE reed and DMSE electronic solid-state switches. The rear adjuster acts purely as a mechanical travel stop; it decelerates the motion alongside the 27 mm air cushion but does not lock the load without live air pressure. For load-holding requirements, a SAIL or BSAI series cylinder is required instead.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX950-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX950-40S |
|---|---|
| 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 SAIJ32BX950-40S
| 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 SAIJ32BX950-40S Is Used
Variable End-Stop Tuning
Perfect for dialing in the exact retract distance between 910 and 950 mm during machine commissioning, allowing precise positioning without physically replacing the cylinder.
Product Size Changeovers
Ideal for packaging lines that handle multiple product lengths, letting operators quickly adjust the stroke end-position on the fly to accommodate varying material sizes.
Light-Force Positioning
Suited for lighter-duty automated assembly tasks requiring 402 N of push force at 0.5 MPa, where a SUS304 rod provides enhanced corrosion resistance.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX950-40S the Right Cylinder?
Choose this 32 mm bore when an application demands 402 N push force at 0.5 MPa, stepping down from a 40 mm bore that yields 628 N. The adjustable stroke is ideal for machine changeovers, letting you fine-tune the 910-950 mm travel window during commissioning rather than swapping out a fixed-stroke SAI cylinder. Because the 950 mm stroke is long relative to the 12 mm rod diameter, an external guide is strongly recommended to prevent excessive side-loading and premature seal wear.
When specifying a replacement, verify the 32 mm bore, 950 mm stroke, 40 mm adjustment range, PT tapered port threads, and the -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR brackets. Remember that the rear adjuster only sets the end-stop and provides no braking force.
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 SAIJ32BX950-40S FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke by up to 40 mm. This creates a usable travel window between 910 and 950 mm, allowing fine-tuning of the end position at commissioning without changing the cylinder.
It delivers 402 N of push force and 345 N of pull force at 0.5 MPa. The rear adjuster and air cushions only set the travel end and deceleration; they do not hold the load without live air. For load-holding, consider a SAIL or BSAI cylinder.
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