This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X150-40STC, 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 SIJ100X150-40STC
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X150-40STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 150mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X150-40STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke150 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X150-40STC
- 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 SIJ100X150-40STC
The AirTAC SIJ100X150-40STC is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued. The direct replacement is the SAIJ100X150-40STC, retaining the 150mm maximum stroke, G1/2 port, and TC mounting interface. An external stop screw lets you trim the extend stroke by up to 40mm on-site, yielding a usable 110-150mm extension window. The stop sets the end position and is not a load lock.
The SAIJ successor introduces an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. It also adds the SAIL and BSAI lock variants absent in the legacy SI line.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X150-40STC Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X150-40STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X150-40STC |
| Bore size | Ø100 mm |
| Stroke | 150 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 SAIJ100X150-40STC 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 SAIJ100X150-40STC 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 SIJ100X150-40STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×150 | 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 SIJ100X150-40STC Is Used
Press Fit Tuning
Allows operators to dial in the exact 110-150mm extend position for pressing bearings without machining custom spacers.
Variable Length Diverter
Adjusts the extend stroke on-site to accommodate changing package sizes on a sorting line.
Adjustable End Stop
Provides a field-tunable hard stop for pallet positioning where the exact end point varies by product run.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X150-40STC with the SAIJ100X150-40STC
To replace the discontinued SIJ100X150-40STC, order the direct replacement SAIJ100X150-40STC, ensuring you keep the TC mounting and -S magnet for CS1-B/DS1-B sensors. Select the 40mm adjust window if you need on-site tuning between 110-150mm. For strokes of 300mm or longer, verify side-load limits to prevent rod binding. Remember that the external stop screw only sets end position; for load holding on air loss, use an external rod lock or pilot-operated check valve, or specify the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X150-40STC
- ✓ 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 SIJ100X150-40STC FAQ
Yes, the SIJ100X150-40STC is discontinued. The direct replacement is the SAIJ100X150-40STC, which shares the same ISO 15552 interface, 150mm stroke, 40mm adjust window, G1/2 port, and TC mounting. The SAIJ features an upgraded piston seal for longer life.
The external stop screw provides a 40mm adjustment window, allowing the extend stroke to be trimmed from the 150mm maximum down to 110mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X150-40STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X150-40STC replacement — usually within 7-8 hours.