Airtac SAIJ50 Adjustable Cylinder SAIJ50AX120-100S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX120-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 120mm 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
- Stroke120 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 SAIJ50AX120-100S
The AirTAC SAIJ50X120-100-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. Equipped with a -S magnet for position sensing, it integrates seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches housed in the dual-side sensor grooves. The rod is constructed from SUS420J2 stainless steel (code A), offering enhanced corrosion resistance compared to standard carbon steel.
This model provides a substantial 20-120 mm usable travel window by allowing you to dial back the 120 mm nominal stroke by up to 100 mm. Delivering 982 N of push force at 0.5 MPa, it is designed for applications requiring extreme flexibility in end-position tuning without swapping hardware.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX120-100S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX120-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 120 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 SAIJ50AX120-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×120 | 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 SAIJ50AX120-100S Is Used
Product Changeover
Dial in the exact end-stop for varying package sizes on a packaging line without swapping cylinders or adding external stopper blocks.
Prototyping Fixtures
Test multiple stroke lengths rapidly during machine development by adjusting the travel window anywhere between 20 and 120 mm.
Clamping Force Tuning
Fine-tune the clamping reach on delicate workpieces, using the 982 N thrust at 0.5 MPa while preventing over-travel.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX120-100S the Right Cylinder?
Choose this 50 mm bore when 40 mm bore cylinders (providing 628 N push at 0.5 MPa) lack the necessary thrust, but stepping up to a 63 mm bore (1559 N) would be excessive. The massive 100 mm adjustment range is ideal for prototyping or production lines handling frequent product-size changeovers, replacing the need to stock multiple fixed-stroke SAI cylinders. Note that the rear adjuster acts only as a travel stop; it does not hold the load without live air pressure. For true load-holding, consider an external rod lock or the SAIL/BSAI series.
When replacing an ISO 15552 cylinder, match the 50 mm bore, 120 mm nominal stroke, 100 mm adjustment range, PT tapered port threads, and the -S magnet option. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the 120 mm stroke is relatively short, side-load stress is minimal, but always ensure the M16x1.5 rod thread is aligned properly to prevent binding.
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 SAIJ50AX120-100S 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 the maximum 1.0 MPa pressure, it delivers up to 200 kgf.
The rear adjuster screw allows you to mechanically shorten the 120 mm nominal stroke by up to 100 mm, creating a usable travel window of 20 to 120 mm. This stopper only sets the end position and does not lock the load without continuous air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ50 Adjustable Cylinder SAIJ50AX120-100S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.