Airtac SAIJ100 Adjustable Cylinder SAIJ100BX260-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX260-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 260mm 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
- Stroke260 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX260-50
The AirTAC SAIJ100X260-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 210 to 260 mm, allowing you to trim up to 50 mm off the nominal stroke during commissioning without swapping the barrel or adding external stops. It delivers robust thrust, pushing 5497 N and pulling 3681 N at 0.7 MPa, making it ideal for heavy-duty positioning.
This variant uses a SUS304 stainless steel rod (material code B) for superior corrosion resistance. The rod diameter is 25 mm with an M20x1.5 thread, providing high rigidity against side loads, though a dedicated external guide is still recommended for optimal performance. The extruded aluminum barrel includes sensor grooves on both sides, and the rear adjuster acts strictly as a travel stop, not a load-holding lock.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX260-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX260-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 260 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 SAIJ100BX260-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×260 | 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 SAIJ100BX260-50 Is Used
Product Changeover
Dial in the exact end-stop from 210 to 260 mm on the fly when switching product sizes on a packaging line, eliminating the need to physically swap cylinders.
Heavy Press Setup
Leverage the 5497 N push force at 0.7 MPa for heavy pressing operations while fine-tuning the retraction point during initial machine commissioning.
Bending & Forming
Adjust the bending depth precisely via the rear screw to accommodate different material thicknesses without reprogramming the entire motion controller.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX260-50 the Right Cylinder?
Select this 100 mm bore when a 63 mm bore (2182 N push at 0.5 MPa) is insufficient, or step down to it if an 80 mm bore (3518 N push at 0.5 MPa) lacks the required force. Choose the adjustable-stroke SAIJ over a fixed SAI when a machine requires frequent product-size changeovers or precise end-position tuning at setup. The PT tapered port thread and G3/8 port size must match your existing fittings.
For any stroke of 260 mm, ensure an external guide supports the load to prevent excessive side-loading on the rod. Because the plain SAIJ does not hold position without live air, integrate an AirTAC SAIL (pneumatic lock) or BSAI (clamp-lock) cylinder if load-holding is required during a pressure drop. This model uses the reduced SAIJ mounting set: 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 SAIJ100 Adjustable Cylinder SAIJ100BX260-50 FAQ
At an operating pressure of 0.7 MPa, this 100 mm bore cylinder generates a push force of 5497 N and a pull force of 3681 N. At 0.9 MPa, the push force increases to 7068 N.
The nominal stroke is 260 mm, but the rear adjuster allows you to shorten the effective travel by up to 50 mm. This creates an adjustable usable window of 210 to 260 mm for fine-tuning the end position.
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