Airtac SAIJ50 Adjustable Cylinder SAIJ50AX250-30S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX250-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 250mm 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
- Stroke250 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 SAIJ50AX250-30S
The AirTAC SAIJ50X250-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 220-250 mm usable travel window. Delivering 982 N of push force at 0.5 MPa, it handles mid-range actuation with precision. The SUS420J2 stainless steel rod provides excellent corrosion resistance for demanding environments.
Equipped with a magnet for position sensing, this unit works seamlessly with AirTAC CMSE reed and DMSE electronic switches. The extruded aluminum barrel includes sensor grooves on both sides, and the PT tapered ports ensure a tight pneumatic seal. The rear stopper screw allows you to dial in the exact end position without adding external stops.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX250-30S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX250-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 250 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 SAIJ50AX250-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×250 | 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 SAIJ50AX250-30S Is Used
Product Changeovers
Quickly dial in the 220-250 mm stroke window during line format changes to accommodate different package sizes without changing hardware.
Adjustable Diverters
Fine-tune the retract position of sorting gates on a conveyor to handle varying product widths accurately during commissioning.
Machine Setup
Set precise end-stops for machining fixtures, allowing operators to trim the 250 mm nominal travel by up to 30 mm for exact tool positioning.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX250-30S the Right Cylinder?
Choose this 50 mm bore when you need more force than the 40 mm bore (which provides 628 N push at 0.5 MPa) but want a smaller footprint than the 63 mm option. The 30 mm adjustment range is perfect for applications requiring variable end-stops during product changeovers. Because the stroke is 250 mm, ensure an external guide supports the load to prevent excessive side-loading on the rod.
This adjustable-stroke design allows for fine-tuning at commissioning without swapping the cylinder, unlike a fixed SAI model. Remember that the rear adjuster acts only as a travel stop, not a lock; the cylinder will not hold a load without live air. For load-holding requirements, consider the SAIL or BSAI series. This SKU uses PT ports and the standard SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, 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 SAIJ50AX250-30S 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 allows you to shorten the effective travel from the nominal 250 mm down to 220 mm. This creates a 220-250 mm adjustable window for fine-tuning the end position without needing external stops.
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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.
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