Airtac SAIJ50 Adjustable Cylinder SAIJ50BX700-30
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX700-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 700mm 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
- Stroke700 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 SAIJ50BX700-30
The AirTAC SAIJ50X700-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to trim the effective travel within a 670 to 700 mm window. Delivering 982 N of push force at 0.5 MPa, it handles substantial workloads while featuring a SUS304 stainless steel rod for superior corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This model uses a PT tapered port thread and omits the FB, CA, CB, and CR mounting options, utilizing a reduced ISO 15552 set of Basic, FA, LB, TC, FTC, TCM1, and TCM2. The rear screw acts purely as an end-position stop for product changeovers, not a load-holding lock; maintaining position without live air requires an external pilot-operated check valve or a SAIL lock cylinder.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX700-30 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX700-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 700 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 SAIJ50BX700-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×700 | 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 SAIJ50BX700-30 Is Used
Product Changeovers
Dial in the 670 to 700 mm travel window during format size changes on a packaging line without adding external mechanical stops.
End-Position Tuning
Fine-tune the retract end-position at machine commissioning to achieve precise material feeding without replacing the entire actuator.
Variable Diverting
Adjust the stroke length on the fly for a conveyor diverting arm to handle different package dimensions accurately.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX700-30 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 a smaller footprint than the 63 mm option (1559 N at 0.5 MPa). The adjustable stroke is ideal for machine setups requiring variable end-stops without swapping cylinders, contrasting with a fixed-stroke SAI model. To match this cylinder for an ISO 15552 replacement, verify the 700 mm stroke, 30 mm adjustment range, PT G1/4 port, and appropriate mounting bracket.
Because the 700 mm stroke is long and unsupported, the 20 mm rod diameter requires an external guide to prevent excessive side-loading and premature seal wear. The cylinder operates at speeds of 30-800 mm/s, and since no magnet is specified, position sensing via CMSE or DMSE switches is not enabled.
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 SAIJ50BX700-30 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 nominal 700 mm stroke by up to 30 mm, providing a usable travel window of 670 to 700 mm. It functions as a travel stop and does not hold the load without continuous air pressure.
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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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Most inquiries answered within 7-8 hours.
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