Airtac SAIJ50 Adjustable Cylinder SAIJ50AX270-100
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX270-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 270mm 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
- Stroke270 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 SAIJ50AX270-100
The AirTAC SAIJ50X270-100 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 270 mm stroke that can be dialed back by up to 100 mm, creating a precise 170-270 mm usable travel window for highly flexible machine setup. Delivering 982 N of push force at 0.5 MPa, it is built with an SUS420J2 stainless steel rod for enhanced corrosion resistance and features PT tapered port threads.
This adjustable-stroke design allows you to fine-tune the retract end position during commissioning or product changeovers without swapping out the cylinder or adding external stops. The rear adjuster acts purely as a travel stop to set the end position and deceleration point; it does not hold the load without live air pressure. For load-holding requirements without continuous air, consider the SAIL or BSAI series instead.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX270-100 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX270-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 270 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 SAIJ50AX270-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×270 | 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 SAIJ50AX270-100 Is Used
Variable End-Stop Positioning
Ideal for assembly stations where the retract distance must be modified on the fly to accommodate varying component heights without disassembling the pneumatic circuit.
Product Size Changeover
Perfect for packaging lines that process different carton sizes, allowing operators to dial back the 270 mm stroke by up to 100 mm to match the new format requirements quickly.
Machine Setup Commissioning
Provides a 170-270 mm travel window to fine-tune the exact end-of-stroke position during initial machine setup, preventing the need to order custom-length fixed cylinders.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX270-100 the Right Cylinder?
Select this 50 mm bore cylinder when your application requires 982 N of push force at 0.5 MPa and significant on-the-fly stroke modification. If you need less force, the 40 mm bore offers 628 N; if you need more, the 63 mm bore provides 1559 N. The 100 mm adjustment range is ideal for machinery handling multiple product sizes, allowing you to shorten the stroke dynamically rather than maintaining an inventory of fixed-stroke SAI cylinders.
Because the 270 mm stroke exceeds 300 mm when fully extended, ensure you use an external guide rail to prevent excessive side-loading on the rod. This model uses PT tapered ports and omits the -S magnet option, so position sensing requires external mechanical switches rather than embedded CMSE or DMSE sensors. It supports the SAIJ mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ50AX270-100 FAQ
At a standard operating pressure of 0.5 MPa, this 50 mm bore cylinder generates 982 N of push force and 825 N of pull force. If you increase the pressure to 0.7 MPa, the push force rises to 1374 N.
The SAIJ50X270-100 features a rear adjusting screw that allows you to shorten the effective stroke by up to 100 mm. This creates a usable travel window of 170 to 270 mm, enabling you to set the exact retract end-position without changing the cylinder itself.
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