Airtac SAIJ50 Adjustable Cylinder SAIJ50AX800-100
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX800-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 800mm 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
- Stroke800 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 SAIJ50AX800-100
The AirTAC SAIJ50X800-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 700-800mm usable travel window by allowing you to dial back the 800mm nominal stroke by up to 100mm during commissioning. The extruded aluminum barrel includes sensor grooves on both sides, and this specific configuration uses a SUS420J2 stainless steel rod (code A) with PT tapered port threads.
Delivering 982N of push force at 0.5MPa and 1767N at 0.9MPa, it handles robust cycling. The rear stopper mechanism allows fine end-position tuning without adding external stops, while the integrated variable air cushions at both ends manage deceleration across the 30-800mm/s speed range.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX800-100 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX800-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 800 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 SAIJ50AX800-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×800 | 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 SAIJ50AX800-100 Is Used
Machine Changeovers
Dial in the 700-800mm travel window to accommodate different product lengths on the same conveyor line without physically replacing the actuator.
End-Position Tuning
Fine-tune the retract end-position during commissioning using the rear stopper, avoiding the need to bolt on external physical stops.
Long-Stroke Assembly
Leverage the 800mm stroke for large-format press or assembly tasks, using the 100mm trim to compensate for mechanical tolerance stack-up.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX800-100 the Right Cylinder?
Choose this 50mm bore when your application requires 982N of thrust at 0.5MPa, stepping up from a 40mm bore that provides 628N, or scaling down from a 63mm bore delivering 1559N. The 100mm adjustment window is perfect for product-size changeovers on a line, letting you set variable end-stops precisely without swapping the cylinder for a fixed-stroke SAI variant. Because the stroke is 800mm, an external guide is recommended to manage side loads on the long unsupported rod.
For an exact ISO 15552 replacement match, verify the 50mm bore, 800mm stroke, 100mm adjustment, PT port threads, and the SUS420J2 rod material. Note that the rear adjuster acts only as a travel stop; it does not hold the load without live air. For true load-holding without pressure, use a SAIL or BSAI cylinder instead. The mounting set includes 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 SAIJ50AX800-100 FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from the 800mm nominal stroke by up to 100mm, creating a 700-800mm usable window. It sets the end position but does not lock or hold the load without continuous air pressure.
At 0.5MPa it provides 982N of push force and 825N of pull force. At 0.9MPa, the push force increases to 1767N.
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1-Year Warranty
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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