This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X175-40, 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 SIJ100X175-40
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X175-40 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 SAIJ100X175-40, 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 → SAIJ100X175-40
- 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 SIJ100X175-40
The AirTAC SIJ100X175-40 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 40 mm on-site, giving a usable 135-175 mm window from the 175 mm nominal maximum.
As this SIJ model is end-of-life, the direct replacement is the SAIJ100X175-40, retaining the same interface, bore, force, and port. The SAIJ upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. Note this SKU lacks a magnet (-S) and cannot take a switch; the stop sets end position but is not a load lock.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X175-40 Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X175-40 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X175-40 |
| 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 SAIJ100X175-40 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 SAIJ100X175-40 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 SIJ100X175-40
| 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 SIJ100X175-40 Is Used
Press Fit Tuning
Allows operators to dial in the exact 135-175 mm extend position on-site for pressing bearings without machining hard stops.
Variable Length Diverter
Adjusts the extend stroke by up to 40 mm to deflect different package sizes on a conveyor line without swapping cylinders.
Carton Forming Stop
Provides a field-tunable end position for forming varying carton depths, relying on the external stop for precise depth control.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X175-40 with the SAIJ100X175-40
Choose the 40 mm adjust window if your extend stroke needs 135-175 mm field tuning. Mounting reuses ISO 15552 FA, LB, or TC brackets. Because this SKU has no -S magnet, it cannot accept legacy CS1-B/DS1-B sensors. For strokes at or above 300 mm, verify side-load limits to prevent guide failure. Remember the stop screw sets end position; it is not a lock, and a plain cylinder drifts on air loss, so use an external rod lock for held loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X175-40
- ✓ 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 SIJ100X175-40 FAQ
Yes, the SIJ100X175-40 is discontinued. The direct replacement is the SAIJ100X175-40, matching the ISO 15552 interface, 100 mm bore, 175 mm stroke, 40 mm adjust window, and G1/2 port. The SAIJ family also upgrades the piston seal to a two Y-shaped one-way element for longer life.
The external stop screw provides a 40 mm adjust window, shortening the extend stroke from the 175 mm maximum down to 135 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X175-40
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X175-40 replacement — usually within 7-8 hours.