Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-20
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 200mm 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
- Stroke200 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-20
The AirTAC SAIJ100X200-20 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 200 mm nominal stroke that can be fine-tuned down by 20 mm, creating a precise 180-200 mm usable travel window for commissioning without external stops. Delivering 3927 N of push force at 0.5 MPa, it handles heavy positioning tasks. The rod is constructed from SUS304 stainless steel (code B) for superior corrosion resistance, and the extruded aluminum barrel includes sensor grooves on both sides.
This model uses a G1/2 port and relies on a 36 mm variable air cushion at both ends to decelerate the load. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure. It supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, fully omitting FB, CA, CB, and CR options.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 200 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 SAIJ100BX200-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×200 | 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 SAIJ100BX200-20 Is Used
Machine Changeover
Dial in the 180-200 mm travel window during product size transitions without adding physical spacers or swapping out the entire cylinder.
End-Stop Tuning
Use the rear adjuster to fine-tune the retraction end position at commissioning, hitting exact dimensional targets on heavy fixtures.
Heavy Assembly Press
Leverage the 7068 N push force at 0.9 MPa to seat large components, relying on the SUS304 rod for durability in demanding environments.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX200-20 the Right Cylinder?
Choose this 100 mm bore when you need 3927 N of push force at 0.5 MPa or up to 7068 N at 0.9 MPa. If your application requires less force, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa, whereas a 125 mm bore offers 6136 N for heavier demands. The adjustable stroke is ideal for machine changeovers, allowing you to dial back the end position by up to 20 mm without swapping the cylinder. For exact ISO 15552 replacement matching, verify the 100 mm bore, 200 mm stroke, 20 mm adjuster, PT tapered port thread, and your required mounting style.
Because the 200 mm stroke is below the 300 mm threshold, side-load stress is moderate, but the 25 mm rod diameter and M20x1.5 rod thread provide robust resistance to bending. The cylinder operates at speeds from 30 to 800 mm/s. Remember that the rear adjuster and air cushions only set the travel end; they do not function as a lock. For load-holding without live air, consider an AirTAC SAIL or BSAI cylinder, or an external rod lock.
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 SAIJ100BX200-20 FAQ
At 0.5 MPa it provides 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster acts as a mechanical stop, allowing you to shorten the 200 mm stroke by up to 20 mm, resulting in a 180-200 mm usable travel window. It only sets the end position and does not hold the load without live air.
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