Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 250mm 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
- Stroke250 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-30S
The AirTAC SAIJ100X250-30-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 220 to 250 mm usable travel window, allowing you to dial back the nominal 250 mm stroke by up to 30 mm during commissioning without adding external stops. It delivers 5497 N of push force at 0.7 MPa.
This variant uses a SUS304 stainless steel rod for corrosion resistance and includes a magnet for CMSE and DMSE sensors. The extruded aluminum barrel provides sensor grooves on both sides. The rear adjuster functions strictly as a travel stop for end-position tuning, not a lock, so live air is required to hold the load.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 250 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 SAIJ100BX250-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×250 | 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 SAIJ100BX250-30S Is Used
Product Changeover Tuning
Dial in the 220-250 mm retract end-stop precisely during production line changeovers without swapping out the entire cylinder.
Machine Setup Calibration
Fine-tune the final end-position at commissioning using the rear screw, avoiding the need to bolt on external physical stops.
Variable End-Stop Forming
Adjust the travel window on the fly for multi-format production lines, leveraging the 5497 N push force to handle heavy dies.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-30S the Right Cylinder?
Choose this 100 mm bore when an 80 mm bore (3518 N push at 0.5 MPa) lacks the necessary thrust, but a 125 mm bore is oversized. The 30 mm adjustment window is ideal for product changeovers or fine-tuning the retract end-position on the fly. For fixed travel without a stopper, use the standard SAI cylinder instead.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 250 mm stroke, 30 mm adjustment, PT tapered ports, and the -S magnet. The 250 mm stroke is under the 1500 mm maximum, but for any stroke of 300 mm or more, an external guide is recommended to manage side loads. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. If position holding without air pressure is needed, use a SAIL or BSAI cylinder instead.
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 SAIJ100BX250-30S FAQ
At 0.7 MPa it provides 5497 N of push force and 5497 N of pull force. At 0.5 MPa the push force is 3927 N.
The rear adjuster allows you to shorten the effective travel from 250 mm down to 220 mm. It acts as a mechanical stop to fine-tune the end position, but it is not a lock and requires live air to hold the load.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ100 Adjustable Cylinder SAIJ100BX250-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.