Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-50S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 450mm 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
- Stroke450 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-50S
The AirTAC SAIJ200X450-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 400-450 mm from its 450 mm nominal stroke. It delivers immense thrust, generating 21991N of push force and 15080N of pull force at 0.7 MPa. This bore size features a robust 40 mm piston rod, PT tapered port threads, and 50 mm variable air cushions at both ends to manage heavy kinetic energy.
This specific SKU includes an -S magnet for position sensing with AirTAC CMSE reed or DMSE electronic switches, and uses a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance. The rear adjuster acts purely as a mechanical stop for fine-tuning the retract end position during commissioning; it does not lock or hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 450 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 SAIJ200AX450-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×450 | 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 SAIJ200AX450-50S Is Used
Heavy Press Tuning
Dial in the exact 400-450 mm retract position during heavy press commissioning without machining external spacers.
Product Changeover
Quickly adjust the end-stop for varying large product sizes on a conveyor line using the 50 mm rear screw.
Large Assembly Jigs
Fine-tune the clamping travel on massive assembly jigs where 21991N of force at 0.7 MPa is required.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-50S the Right Cylinder?
Choose this 200 mm bore when an application requires maximum thrust—stepping down to a 160 mm bore drops the 0.7 MPa push force to 14074N. The 50 mm adjustment range is ideal for setups needing precise variable end-stops during product changeovers without swapping cylinders or adding external stops. When replacing an ISO 15552 cylinder, match the 200 mm bore, 450 mm stroke, 50 mm adjustment, PT ports, and -S magnet. Note that SAIJ uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR mounts.
Given the 450 mm stroke on this large bore, the heavy 40 mm rod and M36x2 thread handle substantial loads, but long unsupported strokes still require an external guide to prevent side-load damage. The cylinder operates at speeds of 30-500 mm/s, and its extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
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 SAIJ200AX450-50S FAQ
At 0.7 MPa operating pressure, this 200 mm bore cylinder provides 21991N of push force and 15080N of pull force. It can deliver a maximum push force of 28274N at 0.9 MPa.
The rear adjuster screw allows you to mechanically shorten the 450 mm nominal stroke by up to 50 mm, giving a usable travel window of 400-450 mm. This stopper only sets the end position and does not hold the load without live air pressure.
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