Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-30
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 115mm 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
- Stroke115 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-30
The AirTAC SAIJ200X115-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 115 mm stroke that can be fine-tuned backward by up to 30 mm, creating a usable travel window of 85-115 mm. This allows precise end-position calibration during commissioning without swapping the cylinder or adding external stops. As the largest bore in the series, it delivers immense thrust, generating 15708 N of push force and 15080 N of pull force at 0.5 MPa.
This specific SKU is configured with a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance compared to standard carbon steel. It uses PT tapered port threads and lacks a magnet, meaning it cannot host internal sensors. The extruded aluminum barrel includes sensor grooves on both sides, but position detection requires external switches. The rear adjuster acts solely as a travel stop and deceleration aid alongside the standard air cushions, not a load-holding lock.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-30 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 115 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 SAIJ200AX115-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×115 | 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 SAIJ200AX115-30 Is Used
Heavy Press Tuning
Dial in the exact 85-115 mm travel during heavy press commissioning to accommodate varying material thicknesses without external stopper hardware.
Product Changeover
Rapidly adjust the end-stop position on a packaging line when switching between different product sizes, leveraging the 30 mm adjustment window.
Large Load Positioning
Move massive payloads using the 15708 N push force at 0.5 MPa, relying on the 40 mm SUS420J2 rod for robust axial performance.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX115-30 the Right Cylinder?
Choose this 200 mm bore cylinder when an application demands maximum thrust, up to 15708 N at 0.5 MPa, combined with a variable end-stop. If the force requirement is lower, stepping down to a 160 mm bore yields 10053 N of push force at 0.5 MPa, which saves space and air consumption. The adjustable stroke is ideal for machine setups requiring product-size changeovers, offering a fixed SAI alternative with on-the-fly travel tuning.
For load-holding without live air pressure, note that the rear adjuster and air cushions do not lock the rod; a SAIL or BSAI cylinder, or an external pilot-operated check valve, is required. This model is dimensionally interchangeable per ISO 15552, featuring a PT G3/4 port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mountings, and no magnet. Because the stroke is 115 mm, an external guide is not strictly necessary for side-load support, but the 40 mm rod and M36x2 thread handle high axial stress effectively.
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 SAIJ200AX115-30 FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder generates 15708 N of push force and 15080 N of pull force. At the maximum pressure of 1.0 MPa, it delivers up to 3204 kgf.
The rear adjuster screw allows you to shorten the nominal 115 mm stroke by up to 30 mm, providing an adjustable travel window of 85-115 mm. The adjuster is a mechanical stop for end-position tuning and is not a lock; it will not hold the load without live air pressure.
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