This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ200X275-50S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X275-50S
The AirTAC SIJ200 Double Rod Adjustable Cylinder SIJ200X275-50S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 275mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ200X275-50S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke275 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAIJ200X275-50S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X275-50S
The AirTAC SIJ200X275-50S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 200mm bore. An external stop screw lets you trim the extend stroke by up to 50mm on-site, yielding a usable 225-275mm extension out of the 275mm nominal maximum. The G3/4 port and 50mm adjustable cushions handle a 30-500mm/s speed range. This unit is discontinued; the direct replacement is the SAIJ200X275-50S, retaining the same interface, port, and force.
The SAIJ upgrade features an improved two-piece Y-shaped piston seal for lower start-up pressure. Remember the stop screw sets end position only; it is not a load lock, so use an external rod lock for held loads.
Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X275-50S Technical Specifications
| Model | Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X275-50S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ200X275-50S |
| Bore size | Ø200 mm |
| Stroke | 275 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| 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 standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ200X275-50S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / 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 | |
The SAIJ200X275-50S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X275-50S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×275 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X275-50S Is Used
Heavy Press Tonnage Calibration
Needs field stroke tuning to precisely set a 225-275mm press endpoint, accommodating material thickness variations without swapping the cylinder.
Large Mold Clamping Stops
Demands exact end-position adjustment for 200mm bore molding equipment, using the 50mm window to dial in the final mold closure safely.
Replacing the Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X275-50S with the SAIJ200X275-50S
To replace the discontinued SIJ200X275-50S, order the direct replacement SAIJ200X275-50S, ensuring your CS1-B/DS1-B legacy sensors are updated to current AirTAC switches for the -S magnet. The 50mm adjust window is ideal if your final end-position needs on-site tuning between 225mm and 275mm. Reuse your FA, LB, or TC ISO 15552 mounts. Because the 275mm stroke is under 300mm, side-load rod deflection is minimal. Note that the stop screw merely sets the end position; it does not hold loads on air loss—specify an external rod lock or SAIL/BSAI variant for vertical holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ200X275-50S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X275-50S FAQ
Yes, the SIJ200X275-50S is discontinued. The direct replacement is the SAIJ200X275-50S. It shares the identical ISO 15552 interface, 200mm bore, 275mm stroke, 50mm adjust window, G3/4 port, and mounting options, but adds an upgraded piston seal.
The external stop screw provides a 50mm adjustment window, allowing the extend stroke to be trimmed from 275mm down to 225mm on-site. The stop sets position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ200X275-50S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ200X275-50S replacement — usually within 7-8 hours.