Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-50S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 80mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke80 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-50S
The AirTAC SAIJ200X80-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust with 15708N push and 15080N pull at 0.5 MPa. The integrated -S magnet enables position detection via AirTAC CMSE reed or DMSE electronic solid-state sensors housed in the dual-side barrel grooves. A robust SUS420J2 stainless steel rod provides excellent corrosion resistance for demanding environments.
With a nominal 80mm stroke and a 50mm adjustment code, this model provides a usable travel window of 30-80mm. This allows you to dial in the exact end position during commissioning without adding external stops. The rear adjuster functions strictly as a travel stop for deceleration alongside the variable air cushions, not as a lock to hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 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 (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×80 | 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 SAIJ200 Adjustable Cylinder SAIJ200AX80-50S Is Used
Heavy Pressing Operations
Delivers up to 3204 kgf at 1.0 MPa for high-force pressing, with the 50mm adjuster allowing precise tuning of the final crush distance.
Product Size Changeover
Quickly adapt the 30-80mm travel window during production line changeovers to accommodate different product dimensions without swapping cylinders.
Automated Clamping Stations
Secures large workpieces with a SUS420J2 stainless rod, using the rear stopper to set exact clamping depth while CMSE/DMSE sensors confirm position.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX80-50S the Right Cylinder?
Choose this 200mm bore cylinder when maximum output force is required, stepping down to the 160mm bore (10053N push at 0.5 MPa) if you need to reduce physical size and weight. The adjustable 30-80mm travel window is ideal for product-size changeovers on a line, replacing fixed-stroke SAI cylinders when frequent end-position tuning is needed. For load-holding without continuous air pressure, select a SAIL air-released lock or BSAI clamp-lock cylinder instead of relying on the rear stopper.
When replacing an ISO 15552 cylinder, match the 200mm bore, 80mm nominal stroke, 50mm adjustment, PT tapered port threads, and the -S magnet. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the 80mm stroke is relatively short for this large bore, side-load risks are minimized, but external guides are still recommended for heavy payloads.
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 SAIJ200 Adjustable Cylinder SAIJ200AX80-50S FAQ
At 0.5 MPa operating pressure, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. At its maximum 1.0 MPa pressure, it achieves 3204 kgf.
The rear adjuster allows you to shorten the 80mm nominal stroke by up to 50mm, creating a usable travel window of 30-80mm. It acts as a mechanical stop to fine-tune the end position and is not a lock to hold loads without air.
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