Airtac SAIJ40 Adjustable Cylinder SAIJ40BX195-100S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX195-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 195mm 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
- Stroke195 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX195-100S
The AirTAC SAIJ40X195-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a generous usable travel window of 95 to 195 mm, allowing you to dial back the nominal stroke by up to 100 mm. Delivering 628 N of push force at 0.5 MPa, it bridges the gap between smaller 32 mm bores and 50 mm sizes.
This specific SKU includes a SUS304 stainless steel rod (option B) for superior corrosion resistance and is equipped with a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. It utilizes PT tapered port threads and extruded aluminum barrel construction with sensor grooves on both sides, keeping the footprint dimensionally interchangeable with other ISO 15552 cylinders.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX195-100S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX195-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 195 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 SAIJ40BX195-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×195 | 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 SAIJ40BX195-100S Is Used
Variable End-Stop Tuning
Dial in the exact retract position from 95 to 195 mm during machine commissioning to accommodate different product sizes without hardware changes.
Changeover Setup
Quickly adapt automated lines to new packaging dimensions by turning the rear screw, avoiding the downtime of physically swapping cylinders.
Corrosive Environments
The SUS304 stainless steel rod provides reliable actuation in wash-down or mildly corrosive industrial settings where carbon steel fails.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX195-100S the Right Cylinder?
Choose this 40 mm bore when 402 N from a 32 mm bore is insufficient, but 982 N from a 50 mm bore is excessive. The 100 mm adjustment range is ideal for machines processing variable product lengths, letting you fine-tune the retract end position during commissioning without swapping cylinders or adding external stops. Because the stroke is 195 mm, an external guide is recommended to prevent excessive side-loading on the rod.
The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure; for fail-safe load holding, consider the SAIL or BSAI series. To match this ISO 15552 replacement exactly, verify the 40 mm bore, 195 mm stroke, 100 mm adjustment, PT ports, SUS304 rod, and the -S magnet option.
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 SAIJ40BX195-100S FAQ
At 0.5 MPa, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. It can reach up to 1130 N of push force at 0.9 MPa.
The rear adjuster acts as an external stop that lets you trim the effective stroke back by up to 100 mm. This creates a usable travel window between 95 and 195 mm, though it only sets the end position and does not lock the load without air pressure.
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