This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X175-20, 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 SIJ100 Double Rod Adjustable Cylinder SIJ100X175-20
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X175-20 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 175mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X175-20, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke175 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X175-20
- 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 SIJ100 Double Rod Adjustable Cylinder SIJ100X175-20
The AirTAC SIJ100X175-20 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 155-175 mm range (175 mm is the maximum).
The direct replacement is the SAIJ100X175-20, matching the bore, force, adjust window, and mountings. The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. The stop sets end position only; it is not a load lock.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X175-20 Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X175-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X175-20 |
| Bore size | Ø100 mm |
| Stroke | 175 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ100X175-20 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAIJ100X175-20 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X175-20
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×175 | 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 SIJ100 Double Rod Adjustable Cylinder SIJ100X175-20 Is Used
Press Fit Tuning
Dialing in a 155-175 mm extend stroke on-site to seat bearings without bottoming out the tooling.
Variable Format Sealing
Adjusting the extend end position within the 20 mm window to accommodate different carton depths.
End-of-Arm Stop Calibration
Fine-tuning the forward stop distance during setup to prevent over-travel in assembly jigs.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X175-20 with the SAIJ100X175-20
To replace the discontinued SIJ100X175-20, order the direct replacement SAIJ100X175-20, reusing your existing FA, LB, or TC ISO 15552 mounts. The 20 mm adjust window is ideal for precise end-position tuning without machining. Because this SKU lacks the -S suffix, it cannot accept a magnetic switch for sensing. For strokes of 300 mm or longer, verify side-load limits to prevent uneven seal wear. Note that the stop screw is not a lock; for load holding on air loss, specify an external rod lock or the SAIL/BSAI variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X175-20
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X175-20 FAQ
Yes, the SIJ100X175-20 is discontinued.
The external stop screw allows trimming the extend stroke by up to 20 mm on-site (usable range 155-175 mm). It uses a G1/2 port and runs at 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X175-20
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X175-20 replacement — usually within 7-8 hours.