Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-30
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 300mm 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
- Stroke300 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-30
The AirTAC SAIJ200X300-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust up to 18095N at 0.9 MPa. It features a robust 40mm piston rod and a PT tapered port. By integrating an external stopper at the rear, this unit allows you to dial back the nominal 300mm travel by up to 30mm, creating a precise 270-300mm usable window without swapping out the entire actuator.
This adjustable-stroke design is ideal for high-force applications requiring exact end-position tuning during commissioning. The extruded aluminum barrel includes sensor grooves on both sides for straightforward mounting of CMSE or DMSE switches. Constructed with a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance, it operates at speeds of 30-500mm/s and utilizes a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-30 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 300 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 SAIJ200AX300-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×300 | 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 SAIJ200AX300-30 Is Used
Heavy Press Tuning
Fine-tune the 270-300mm travel window during setup to achieve exact pressing depth on heavy industrial assemblies without changing hardware.
Product Changeover Stops
Adjust the rear stopper on the fly to accommodate different pallet sizes on a high-thrust transfer line, avoiding external stop modifications.
Large Fixture Positioning
Dial in the exact end position for massive welding or machining fixtures, leveraging 18095N of force to secure heavy workpieces.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX300-30 the Right Cylinder?
Select this 200mm bore actuator when your machinery demands extreme push force, as stepping down to a 160mm bore limits you to 14074N at 0.9 MPa. The 30mm adjustment window is perfect for variable end-stops or product-size changeovers, preventing the need to bolt on external stops. To replace an ISO 15552 cylinder, match the 200mm bore, 300mm stroke, PT port, and desired mounting style. Since the stroke is 300mm, ensure external guide rails are used to support the load and prevent excessive side-loading on the 40mm rod.
Keep in mind the rear adjuster functions strictly as a travel stop and works alongside the air cushion for deceleration; it does not hold the load without live air pressure. For applications requiring true load-holding in the event of air loss, consider an AirTAC SAIL pneumatic lock, a BSAI clamp-lock cylinder, or an external pilot-operated check valve.
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 SAIJ200AX300-30 FAQ
At an operating pressure of 0.9 MPa, this 200mm bore cylinder generates a push force of 18095N and a pull force of 15080N. It reaches a maximum push force of 3204 kgf at 1.0 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke by up to 30mm, providing a usable travel window of 270-300mm. It allows precise end-position tuning at commissioning without requiring cylinder replacement.
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