Airtac SAIJ50 Adjustable Cylinder SAIJ50AX160-20S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX160-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 160mm 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
- Stroke160 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 SAIJ50AX160-20S
The AirTAC SAIJ50X160-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 50 mm bore and a 160 mm nominal stroke that can be dialed back by up to 20 mm, providing a usable travel window of 140 to 160 mm for fine end-position tuning. Delivering 982 N of push force at 0.5 MPa, it handles mid-range automation tasks with precision. The piston rod uses SUS420J2 stainless steel (code A) for superior corrosion resistance, and the integrated magnet (-S) enables direct mounting of CMSE reed or DMSE solid-state sensors along the extruded aluminum barrel grooves.
This model utilizes PT tapered port threads and includes adjustable air cushions at both ends to manage impact deceleration. It is important to note that the rear adjuster acts strictly as a mechanical travel stop, not a lock; the cylinder cannot hold a load or maintain position without live air pressure. For applications requiring true load-holding without continuous air, consider the related SAIL or BSAI series.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX160-20S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX160-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 160 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 SAIJ50AX160-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×160 | 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 SAIJ50AX160-20S Is Used
Product Changeover
Dial the rear adjuster up to 20 mm to quickly shift the 160 mm stroke end-position for different product sizes on the line without changing the cylinder.
Machine Setup
Fine-tune the 140-160 mm travel window during commissioning to perfectly time the 982 N thrust without adding external stopper blocks.
Corrosive Assembly Lines
Leverage the SUS420J2 stainless steel rod and 50 mm bore to push loads reliably in washdown or mildly corrosive manufacturing environments.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX160-20S the Right Cylinder?
Choose this 50 mm bore when your application requires roughly 982 N of push force at 0.5 MPa, or step down to a 40 mm bore if 628 N is sufficient. The adjustable 140 to 160 mm travel window is ideal for machine setups requiring variable end-stops or product changeovers, eliminating the need to physically swap cylinders or add external stopper blocks. The 20 mm rod thread and SUS420J2 stainless rod offer good side-load capability, but any stroke over 300 mm requires an external guide. Mounting options include the reduced SAIJ set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. To replace an ISO 15552 cylinder, match the 50 mm bore, 160 mm stroke, 20 mm adjuster, PT port, 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 SAIJ50 Adjustable Cylinder SAIJ50AX160-20S FAQ
At 0.5 MPa, the 50 mm bore 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 allows you to shorten the 160 mm nominal stroke by up to 20 mm, creating a usable travel window of 140 to 160 mm. It acts as a mechanical stop and does not lock the load without air pressure.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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