This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ200X75-20, 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 SIJ200X75-20
The AirTAC SIJ200 Double Rod Adjustable Cylinder SIJ200X75-20 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 75mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ200X75-20, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke75 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAIJ200X75-20
- 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 SIJ200X75-20
The AirTAC SIJ200X75-20 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 200 mm bore and 75 mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 55-75 mm end position. As this SKU lacks a -S suffix, it cannot accept a magnetic switch.
Because the SIJ line is end-of-life, the direct replacement is the SAIJ200X75-20—retaining the same ISO 15552 mounting interface, force, and adjust window. The SAIJ family incorporates an upgraded piston seal using two Y-shaped one-way elements for lower start-up pressure and longer life. Note the stop screw sets end position only; it is not a load lock.
Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X75-20 Technical Specifications
| Model | Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X75-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ200X75-20 |
| Bore size | Ø200 mm |
| Stroke | 75 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 SAIJ200X75-20 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 SAIJ200X75-20 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 SIJ200X75-20
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×75 | 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 SIJ200X75-20 Is Used
Heavy Press Fit Tuning
Allows on-site extend stroke adjustment from 75 mm down to 55 mm to dial in the exact bottoming position for large bushing insertions without machining spacers.
Pallet Positioner Stops
Provides a field-tunable end-stop for heavy pallet lifting, letting operators shorten the extend stroke by up to 20 mm to adapt to varying pallet heights.
Large Mold Clamping
Delivers 15708 N of clamping force at 0.5 MPa with an adjustable 55-75 mm reach to accommodate slight variances in mold base thickness on heavy machinery.
Replacing the Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X75-20 with the SAIJ200X75-20
To replace the discontinued SIJ200X75-20, order the direct replacement SAIJ200X75-20, which matches the 200 mm bore, 75 mm nominal stroke, 20 mm adjust window, G3/4 port, and ISO 15552 mounting footprint (Basic, FA, LB, TC). Select the 20 mm adjust window if your assembly requires precise 55-75 mm extend tuning. This non-magnetic SKU cannot support sensors; for position detection you must migrate to a -S designated model. Because the nominal 75 mm stroke is under 300 mm, side-load rod deflection is minimal. Remember that a plain cylinder drifts on air loss—the cushion only decelerates near stroke end, so for load holding use an external rod lock or the SAIL/BSAI variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ200X75-20
- ✓ 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 SIJ200X75-20 FAQ
Yes, the SIJ200X75-20 is discontinued. The direct replacement is the SAIJ200X75-20. It matches the 200 mm bore, 75 mm stroke, 20 mm adjust window, G3/4 port, and ISO 15552 mounting interface. The SAIJ family also features an upgraded piston seal for longer life.
The external stop screw provides a 20 mm adjust window, allowing the extend stroke to be shortened from the 75 mm maximum down to 55 mm. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ200X75-20
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ200X75-20 replacement — usually within 7-8 hours.