Airtac SAIJ50 Adjustable Cylinder SAIJ50BX150-30S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX150-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 150mm 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.
- BoreØ50 mm
- Stroke150 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX150-30S
The AirTAC SAIJ50X150-30-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 150 mm stroke that can be dialed back by up to 30 mm, giving you a precise 120-150 mm usable travel window for fine-tuning end positions at commissioning. The 50 mm bore delivers 982 N of push force at 0.5 MPa and 1374 N at 0.7 MPa, making it a robust choice for moderate-thrust applications.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a piston magnet (-S) for position detection. It is fully compatible with AirTAC CMSE reed switches and DMSE solid-state electronic sensors, which mount cleanly into the extruded aluminum barrel's dual sensor grooves. The fluid port utilizes a PT tapered thread, and the cylinder relies on adjustable air cushions at both ends to decelerate the load smoothly.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX150-30S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX150-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 150 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ50 Adjustable Cylinder SAIJ50BX150-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×150 | 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 SAIJ50 Adjustable Cylinder SAIJ50BX150-30S Is Used
Machine Changeover
Quickly dial in the 120-150 mm stroke window during product size changes on a packaging line without changing the cylinder mounting.
End-Position Tuning
Fine-tune the exact retract end-position during commissioning to perfect a pressing or clamping operation without adding external stops.
Variable Diverting
Adjust the diverting arm reach on the fly to accommodate different package widths moving through the production facility.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX150-30S the Right Cylinder?
Select this 50 mm bore cylinder when your application requires 982 N of push force at 0.5 MPa, stepping up from a 40 mm bore that provides 628 N. The adjustable 120-150 mm travel window is ideal for machine setups requiring variable end stops or frequent product changeovers, eliminating the need to physically swap cylinders or bolt on external stops. The SUS304 stainless steel rod is specified here for environments where moisture or corrosion is a concern.
When ordering, confirm the ISO 15552 replacement match: 50 mm bore, 150 mm stroke, 30 mm adjustment, PT port thread, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Remember that the rear adjuster acts only as a travel stop and the air cushions provide deceleration; neither will hold a load without live air pressure. For true load-holding, consider the SAIL or BSAI series instead.
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 SAIJ50 Adjustable Cylinder SAIJ50BX150-30S FAQ
At 0.5 MPa, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force increases to 1374 N.
The rear adjuster screw lets you shorten the effective travel from the nominal 150 mm down to 120 mm, creating a 120-150 mm usable window. It functions as a mechanical stop to set the end position, not a load-holding lock.
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