This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X150-50, 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 SIJ100X150-50
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X150-50 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 SAIJ100X150-50, 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 → SAIJ100X150-50
- 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 SIJ100X150-50
The AirTAC SIJ100X150-50 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 50 mm on-site, giving a usable extend range of 100-150 mm from the 150 mm nominal maximum. The stop screw strictly sets the end position and is not a load lock; the 36 mm adjustable air cushions only decelerate the piston near stroke end. This 100 mm bore features a 25 mm rod, M20x1.5 rod thread, and a G1/2 port.
As this SIJ model is end-of-life, the direct replacement is the SAIJ100X150-50, matching the ISO 15552 mounting interface, force, and adjust window. 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 -S magnet and cannot accept a sensor.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X150-50 Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X150-50 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X150-50 |
| 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 SAIJ100X150-50 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 SAIJ100X150-50 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 SIJ100X150-50
| 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 SIJ100X150-50 Is Used
Press Fit Tuning
Allows operators to dial in the exact 100-150 mm extend position for inserting bearings without machining custom fixed stops.
Variable Package Diverter
Adjusts the extend stroke on-site to deflect different carton sizes accurately on a packaging line.
Adjustable End Stop
Provides a field-tunable hard stop for pallet positioning, adapting to varying pallet dimensions without changing cylinders.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X150-50 with the SAIJ100X150-50
To replace the discontinued SIJ100X150-50, order the direct replacement SAIJ100X150-50, keeping the same ISO 15552 interface and G1/2 port. Choose the 50 mm adjust window if your assembly requires field tuning the extend stroke down to 100 mm. Mounting options include FA, LB, and TC brackets. Because this SKU has no -S magnet, it cannot accept legacy CS1-B/DS1-B sensors; add external physical stops if detection is needed. For stroke lengths of 300 mm or greater, carefully manage side-load forces to prevent rod bearing wear. A plain cylinder drifts on air loss—the stop screw is not a lock, so for held loads use an external rod lock or the SAIL/BSAI variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X150-50
- ✓ 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 SIJ100X150-50 FAQ
Yes, the SIJ100X150-50 is discontinued. The direct replacement is the SAIJ100X150-50, offering the same ISO 15552 interface, 150 mm stroke, 50 mm adjust window, and G1/2 port. The SAIJ family features an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw window is 50 mm, allowing you to trim the extend stroke from 150 mm down to 100 mm. The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X150-50
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X150-50 replacement — usually within 7-8 hours.