Airtac SAIJ100 Adjustable Cylinder SAIJ100BX55-50
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX55-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 55mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke55 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 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 SAIJ100 Adjustable Cylinder SAIJ100BX55-50
The AirTAC SAIJ100X55-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that allows you to dial back the nominal 55 mm travel by up to 50 mm. This creates a highly versatile 5 to 55 mm usable window, letting you fine-tune the retract end-position during commissioning without swapping hardware. It delivers substantial thrust, pushing 3927 N at 0.5 MPa and pulling 3681 N.
Equipped with a SUS304 stainless steel rod for superior corrosion resistance and a PT tapered port thread, this 100 mm bore unit operates at speeds of 30-800 mm/s. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to add CMSE reed or DMSE electronic switches if position detection is needed later. The rear adjuster functions strictly as a travel stop to set deceleration, not as a lock to hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX55-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX55-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 55 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100BX55-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×55 | 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 SAIJ100BX55-50 Is Used
End-Stop Calibration
Dial in the exact retract position within the 5-55 mm window during machine setup, using the rear stopper to perfect end-of-stroke positioning without external shims.
Product Changeover
Quickly adjust the cylinder travel to accommodate different product sizes on a packaging line, reducing downtime between production runs.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX55-50 the Right Cylinder?
The adjustable 5-55 mm travel window is ideal for machines requiring variable end-stops or frequent product-size changeovers, eliminating the need to maintain an inventory of multiple fixed-stroke SAI cylinders.
Because the stroke is short, side-load stress is minimal, but always ensure the load is guided externally. Remember that the rear adjuster only sets the travel end; it cannot hold a load safely without continuous air pressure. For true pneumatic locking without live air, consider the SAIL or BSAI series. This SAIJ model is dimensionally interchangeable per ISO 15552 and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ100BX55-50 FAQ
At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster acts as a mechanical stop that can trim the nominal 55 mm stroke back by up to 50 mm, giving a usable travel window of 5 to 55 mm. It sets the end position and deceleration, but does not lock the load without live air.
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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.
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Most inquiries answered within 7-8 hours.
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