This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X170-75S, 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 SIJ100X170-75S
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X170-75S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 170mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X170-75S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke170 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X170-75S
- 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 SIJ100X170-75S
The AirTAC SIJ100X170-75S is a discontinued double-acting double-rod adjustable-stroke ISO 15552 cylinder. It uses an external stop screw to trim the extend stroke by up to 75 mm on-site, yielding a usable 95-170 mm window from the 170 mm nominal maximum. The direct replacement is the SAIJ100X170-75S, matching the G1/2 port, M20x1.5 rod thread, and 36 mm adjustable cushions.
The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure, and adds SAIL/BSAI lock variants. The stop screw sets end position only; it is not a load lock, so use an external rod lock for held loads.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X170-75S Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X170-75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X170-75S |
| Bore size | Ø100 mm |
| Stroke | 170 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 SAIJ100X170-75S 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 SAIJ100X170-75S 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 SIJ100X170-75S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×170 | 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 SIJ100X170-75S Is Used
Press Fit Depth Tuning
Dial in precise bearing seating depth on an assembly line by trimming the extend stroke up to 75 mm on-site without machining new hard stops.
Variable Carton Flap Folding
Accommodate fluctuating corrugated box heights by adjusting the external stop screw to set the exact 95-170 mm folding reach.
Adjustable Pallet Push-Off
Tune the pusher end position for mixed pallet footprints, using the stop screw to set the exact eject distance safely.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X170-75S with the SAIJ100X170-75S
To replace the discontinued SIJ100X170-75S, order the exact direct replacement SAIJ100X170-75S. Choose the 75 mm adjust window if you need to tune the extend stroke down to 95 mm; otherwise, a smaller window avoids excess screw length. Mounting interfaces (FA, LB, TC) reuse existing ISO 15552 holes. The -S suffix provides a piston magnet for CS1-B/DS1-B sensors (SAIJ uses current switches). For strokes over 300 mm, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X170-75S
- ✓ 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 SIJ100X170-75S FAQ
Yes, the SIJ100X170-75S is discontinued. The direct replacement is the SAIJ100X170-75S. It shares the same ISO 15552 interface, 100 mm bore, 170 mm stroke, 75 mm adjust window, G1/2 port, and mounting options, while adding an upgraded piston seal.
The external stop screw provides a 75 mm adjust window, shortening the extend stroke from the 170 mm nominal maximum down to 95 mm. The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X170-75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X170-75S replacement — usually within 7-8 hours.