This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X80-50, 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 SIJ100X80-50
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X80-50 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 80mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X80-50, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke80 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X80-50
- 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 SIJ100X80-50
The AirTAC SIJ100X80-50 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 100 mm bore and 80 mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 50 mm on-site, yielding a usable 30-80 mm window. The stop sets end position only; it is not a load lock.
The direct replacement is the SAIJ100X80-50, preserving the ISO 15552 mounting interface, force, and adjust window. The SAIJ upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this SKU lacks a magnet (-S), so it cannot accept a reed switch.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X80-50 Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X80-50 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X80-50 |
| Bore size | Ø100 mm |
| Stroke | 80 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 SAIJ100X80-50 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 SAIJ100X80-50 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 SIJ100X80-50
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 SIJ100X80-50 Is Used
Variable Pitch Forming
Sheet metal bending stations requiring field stroke tuning to accommodate different flange heights without swapping the entire cylinder body.
Adjustable Diverter Arms
Package routing gates that need the extend stroke trimmed on-site to match varying product widths on the fly.
Multi-Height Pallet Stops
End-of-line pallet handling where the external stop screw adjusts the extend position for mixed load heights.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X80-50 with the SAIJ100X80-50
To replace the discontinued SIJ100X80-50, order the direct replacement SAIJ100X80-50, which keeps the identical G1/2 port, 80 mm stroke, and 50 mm adjust window. Choose the 50 mm adjust window if your fixture requires trimming the extend stroke down to a 30 mm minimum. Mounting hardware (FA, LB, TC) reuses existing ISO 15552 interface holes. Because this SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors; confirm if sensing is needed. For strokes at or above 300 mm, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X80-50
- ✓ 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 SIJ100X80-50 FAQ
Yes, the SIJ100X80-50 is discontinued. The direct replacement is the SAIJ100X80-50. It matches the 100 mm bore, 80 mm stroke, 50 mm adjust window, G1/2 port, and ISO 15552 mounting interface. The SAIJ family also features an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
The external stop screw allows you to trim the extend stroke by up to 50 mm on-site, creating a usable 30-80 mm stroke window. The stop sets end position only; it is not a load lock. For load holding on air loss, use an external rod lock or the SAIL/BSAI variants.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X80-50
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X80-50 replacement — usually within 7-8 hours.