Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-100
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 210mm 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
- Stroke210 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-100
The AirTAC SAIJ100X210-100 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 7068N of push force at 0.9 MPa, making it well-suited for heavy actuation tasks. The integrated rear screw allows you to dial back the nominal 210 mm stroke by up to 100 mm, creating a highly versatile 110 to 210 mm usable travel window for precise end-position tuning.
This model features a SUS304 stainless steel rod for superior corrosion resistance in harsh environments. It uses a PT tapered port and includes adjustable air cushions at both ends to decelerate heavy moving loads. The extruded aluminum barrel incorporates sensor grooves on both sides, ready to accept AirTAC CMSE reed or DMSE electronic sensors if position feedback is later required.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 210 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 SAIJ100BX210-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×210 | 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 SAIJ100BX210-100 Is Used
Variable End-Stop Machining
Dial in the retract position from 110 to 210 mm on the fly to accommodate different part lengths without repositioning the entire fixture.
Product Changeover Diverter
Rapidly adjust the stroke end-point during packaging line format changes to handle varying box widths seamlessly.
Heavy Assembly Press
Leverage the 7068N push force at 0.9 MPa to seat heavy components, using the rear stopper to fine-tune the final pressing depth.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-100 the Right Cylinder?
Selecting this 100 mm bore over a smaller 80 mm variant provides a significant thrust upgrade, jumping from 4523N to 7068N at 0.9 MPa, which is critical for high-inertia loads. The adjustable stroke is chosen over a fixed SAI cylinder when a machine requires frequent product-size changeovers, allowing operators to fine-tune the retract end-stop at commissioning without swapping hardware or adding external stops. Since the 210 mm stroke exceeds 300 mm is not applicable here, standard mounting suffices, but always ensure the load is guided to prevent excessive rod side-loading.
When matching this cylinder for an ISO 15552 replacement, verify the 100 mm bore, 210 mm stroke, 100 mm adjustment range, PT port thread, and the exact mounting set. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, deliberately omitting FB, CA, CB, and CR options. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true pneumatic locking, consider the SAIL or BSAI series 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 SAIJ100BX210-100 FAQ
At an operating pressure of 0.9 MPa, this 100 mm bore cylinder generates 7068N of push force and 3681N of pull force. It can deliver a maximum thrust of 801 kgf at 1.0 MPa.
The rear adjuster screw acts as an external stopper that lets you mechanically trim the effective travel. For this SAIJ100X210-100, you can shorten the 210 mm nominal stroke by up to 100 mm, providing a usable end-position window between 110 mm and 210 mm without needing to replace the cylinder.
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