Airtac SAIJ40 Adjustable Cylinder SAIJ40BX155-10S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX155-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 155mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke155 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX155-10S
The AirTAC SAIJ40X155-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 628N of push force and 528N of pull force at 0.5 MPa, featuring a 16mm piston rod and G1/4 port. The integrated -S magnet enables position detection with AirTAC CMSE reed or DMSE electronic sensors.
This specific SKU provides a 145-155mm usable travel window, allowing you to trim the effective stroke by up to 10mm during commissioning without swapping hardware. The rod is constructed from SUS304 stainless steel (code B) for superior corrosion resistance, and the extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX155-10S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX155-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 155 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ40 Adjustable Cylinder SAIJ40BX155-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×155 | 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 SAIJ40 Adjustable Cylinder SAIJ40BX155-10S Is Used
Commissioning Fine-Tuning
Dial in the exact 145-155mm end-of-stroke position during machine setup to perfect product placement without machining external stopper blocks.
Product Changeover
Quickly adjust the rear stopper by up to 10mm when running a slightly different package size, minimizing downtime between production batches.
Corrosive Assembly Tasks
Leverage the SUS304 stainless steel rod for light-duty pushing and clamping in environments where standard carbon steel rods would degrade.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX155-10S the Right Cylinder?
Select this 40mm bore when an application requires precise end-position tuning on the fly, as the rear stopper screw allows fine adjustments that a fixed-stroke SAI cylinder cannot provide. If your setup needs less force, stepping down to a 32mm bore yields 402N push force at 0.5 MPa; stepping up to a 50mm bore provides 982N. The rear adjuster acts strictly as a travel stop and does not hold the load without live air—use an AirTAC SAIL or BSAI cylinder for pneumatic locking. To match this cylinder for an ISO 15552 replacement, specify the 40mm bore, 155mm stroke, 10mm adjustment, PT tapered port thread, SUS304 rod, and -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 SAIJ40 Adjustable Cylinder SAIJ40BX155-10S FAQ
At 0.5 MPa operating pressure, this 40mm bore cylinder provides 628N of push force and 528N of pull force. It can reach up to 1130N of push force at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 155mm nominal stroke anywhere within a 145-155mm travel window. It sets the end position but does not lock the load without continuous air pressure.
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