Airtac SAIJ50 Adjustable Cylinder SAIJ50BX260-30S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX260-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 260mm 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
- Stroke260 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 SAIJ50BX260-30S
The AirTAC SAIJ50X260-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 260 mm nominal stroke by up to 30 mm. This creates a 230-260 mm usable travel window for precise end-position tuning during commissioning. It delivers 982 N of push force and 825 N of pull force at 0.5 MPa.
This variant features a SUS304 stainless steel rod for corrosion resistance and includes a magnet for use with AirTAC CMSE reed and DMSE electronic solid-state sensors. The extruded aluminum barrel includes sensor grooves on both sides. Mounting options use the reduced SAIJ set: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR variants.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX260-30S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX260-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 260 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 SAIJ50BX260-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×260 | 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 SAIJ50BX260-30S Is Used
Product Changeover
Dial in the 230-260 mm travel window on the fly to accommodate different product lengths on a packaging line without physically swapping the cylinder.
Machine Setup
Fine-tune the retract end-position during initial commissioning to perfectly align a stopper or tooling, eliminating the need for external shims.
Variable End Stops
Set precise end-of-stroke limits for a machining or clamping fixture where the exact contact point varies slightly between workpieces.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX260-30S the Right Cylinder?
Choose this 50 mm bore when your application requires around 982 N of push force at 0.5 MPa. If your load demands less force, step down to a 40 mm bore offering 628 N; for heavier payloads, step up to a 63 mm bore providing 1559 N. An adjustable stroke is selected over a fixed SAI when you need variable end-stops or fine-tuning during machine changeover without swapping cylinders.
To replace an ISO 15552 cylinder, match the 50 mm bore, 260 mm stroke, 30 mm adjustment, PT tapered port thread, and the -S magnet. The rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding without pressure, use a SAIL or BSAI cylinder. The 16 mm rod and M12x1.25 thread handle side loads well, but with a 260 mm stroke, an external guide is recommended for long unsupported loads.
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 SAIJ50BX260-30S FAQ
It features a rear adjusting screw that lets you shorten the effective travel from the nominal 260 mm by up to 30 mm, providing a 230-260 mm usable window. The adjuster acts as a mechanical stop at the retract end and does not lock the load without live air pressure.
At 0.5 MPa, it provides 982 N of push force and 825 N of pull force. The standard speed range for this 50 mm bore is 30-800 mm/s, supported by adjustable air cushions at both ends.
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Covers non-human-caused product damage.
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