Airtac SAIJ50 Adjustable Cylinder SAIJ50AX800-75S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX800-75S 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 SAIJ50AX800-75S
The AirTAC SAIJ50X800-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel window from 725 to 800 mm. Delivering 982 N of push thrust at 0.5 MPa, it uses a G1/4 port and includes a magnet for position sensing. The rod is constructed from SUS420J2 stainless steel, offering enhanced corrosion resistance for harsher industrial environments.
This adjustable-stroke design lets you dial in the exact retract end-position during commissioning or product changeover without swapping the cylinder or adding external stops. The rear adjuster acts purely as a travel stop to set deceleration, not as a lock, meaning the load is not held without live air. For load-holding without pressure, an external rod lock or pilot-operated check valve is required.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX800-75S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX800-75S |
|---|---|
| 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 SAIJ50AX800-75S
| 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 SAIJ50AX800-75S Is Used
Variable Length Diverter
Dial in the exact 725 to 800 mm retract position to deflect packages of varying sizes on a conveyor line without physically remounting the actuator.
Machine Changeover Setup
Quickly fine-tune the end-of-stroke stop during product format changes, using the rear adjuster to adapt the travel window instead of swapping hardware.
Long-Stroke Assembly Press
Leverage the 982 N of thrust at 0.5 MPa for long-travel pressing tasks, using the adjustable stop to limit the final pressing depth accurately.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX800-75S the Right Cylinder?
Choose this 50 mm bore when you need more force than the 40 mm version (628 N at 0.5 MPa) but want to avoid the bulk of the 63 mm option (1559 N). The 75 mm adjustment range is particularly useful for machinery that processes varying product sizes, allowing you to set a variable end-stop on the fly. It uses a PT tapered port thread and supports AirTAC CMSE reed and DMSE electronic sensors via the integrated side grooves.
Because this cylinder features a long 800 mm stroke, the 20 mm rod diameter may not adequately support high side loads if the rod is left unsupported; an external guide mechanism is highly recommended to prevent premature seal wear. This SAIJ model uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets. It is dimensionally interchangeable per ISO 15552.
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 SAIJ50AX800-75S FAQ
It delivers 982 N of push force and 825 N of pull force at 0.5 MPa. The nominal stroke is 800 mm, but the rear adjuster allows you to reduce the effective travel by up to 75 mm, creating a usable window of 725 to 800 mm.
No, the rear adjuster functions only as a travel stop to set the end position and deceleration. It does not lock or hold the load without live air. For fail-safe load holding, you should use an SAIL lock cylinder, BSAI clamp-lock, or an external pilot-operated check valve.
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 SAIJ50AX800-75S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.