Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 650mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke650 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-30S
The AirTAC SAIJ100X650-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 620 to 650 mm. Featuring a robust 25 mm SUS304 stainless steel rod and a G1/2 port, it delivers 3927 N of push force at 0.5 MPa. This bore size operates at speeds from 30 to 800 mm/s and includes variable air cushions at both ends to manage kinetic energy.
Because this unit carries the -S option, it includes a magnet for position sensing and works seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches mounted in the dual-side sensor grooves. The external rear stopper allows you to fine-tune the retract end position during commissioning without adding external stops. Note that the adjuster acts purely as a travel stop and does not lock the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 650 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×650 | 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 SAIJ100 Adjustable Cylinder SAIJ100BX650-30S Is Used
Product Size Changeovers
Quickly dial the retract stroke back by up to 30 mm when switching between product lengths on a packaging line, avoiding mechanical rebuilds.
End-Position Tuning
Fine-tune the 620 to 650 mm travel window during machine commissioning to achieve exact seating forces without adding external stopper blocks.
Long-Stroke Forming
Leverage the 3927 N push force at 0.5 MPa for large pressing or forming tasks, using the adjustable stop to set precise material engagement depth.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX650-30S the Right Cylinder?
Choose this 100 mm bore when an 80 mm bore (providing 2513 N push at 0.5 MPa) is insufficient, but a 125 mm bore is too large. The 30 mm adjustment range is ideal for product changeovers on a line, allowing you to dial in the exact end position without swapping the cylinder. For load-holding without continuous air pressure, you would need a SAIL pneumatic lock, a BSAI clamp-lock, or an external rod lock, as the SAIJ adjuster is strictly a stop. To replace an ISO 15552 cylinder, match the 100 mm bore, 650 mm stroke, PT port threads, SUS304 rod, and -S magnet.
With a 650 mm stroke, the unsupported 25 mm rod is subject to side loading. Even with the durable SUS304 rod material, you should use an external guide to prevent binding and premature seal wear over this long travel distance.
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 SAIJ100 Adjustable Cylinder SAIJ100BX650-30S FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw allows you to shorten the effective stroke from its 650 mm nominal length down to 620 mm. This stopper sets the travel end and deceleration point but does not hold the load without live air pressure.
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