Airtac SAIJ50 Adjustable Cylinder SAIJ50AX145-10S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX145-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 145mm 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
- Stroke145 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 SAIJ50AX145-10S
The AirTAC SAIJ50X145-10-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down to a 135-145 mm window. Delivering 982 N of push force at 0.5 MPa, it bridges the gap between lighter 40 mm bores and heavier 63 mm units. The extruded aluminum barrel includes sensor grooves on both sides for straightforward position feedback.
Equipped with a SUS420J2 stainless steel rod and a PT tapered port thread, this unit is built for durability. The integrated magnet supports AirTAC CMSE reed and DMSE solid-state switches. Remember that the rear adjuster acts only as a travel stop for commissioning precision, not a load-holding lock; for fail-safe braking, consider the SAIL or BSAI series.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX145-10S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX145-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 145 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 SAIJ50AX145-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×145 | 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 SAIJ50AX145-10S Is Used
Machine Changeover
Dial in the exact end-stop during product size transitions without physically swapping cylinders or adding shims.
End-Position Tuning
Fine-tune the 135-145 mm travel window at commissioning to perfect the seating force against a workpiece.
Assembly Station Setup
Adjust the retract distance on the fly to accommodate varying part heights on a single pneumatic assembly line.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX145-10S the Right Cylinder?
Choose this 50 mm bore when you need more thrust than a 40 mm cylinder (628 N at 0.5 MPa) but want to avoid the bulk of a 63 mm model. The 10 mm adjustment range is ideal for product changeovers, letting you dial in the exact end position without adding external stops or swapping the cylinder for a fixed-stroke SAI. It uses the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Because the stroke is under 300 mm, side-load stress is minimal, though the 20 mm rod and M16x1.5 thread handle standard loads well. If your application requires holding a load without continuous air pressure, this cylinder will not suffice; you must use an external rod lock or a pilot-operated check valve.
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 SAIJ50AX145-10S FAQ
At 0.5 MPa operating pressure, 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 145 mm nominal stroke by up to 10 mm, creating a usable travel window of 135-145 mm. It functions as a mechanical stop for position tuning and does not lock the load without live air pressure.
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Covers non-human-caused product damage.
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