This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X500-50, 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 SIJ100X500-50
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X500-50 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 500mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X500-50, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke500 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X500-50
- 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 SIJ100X500-50
The AirTAC SIJ100X500-50 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. It uses an external stop screw to trim the extend stroke by up to 50 mm on-site, yielding a usable 450-500 mm window from the 500 mm nominal maximum. It features a 25 mm rod, M20x1.5 thread, 36 mm adjustable cushions, and a G1/2 port.
The direct replacement is the SAIJ100X500-50, preserving 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 non-magnetic SKU lacks a -S sensor groove, and the stop screw sets end position but is not a load lock.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X500-50 Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X500-50 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X500-50 |
| Bore size | Ø100 mm |
| Stroke | 500 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 SAIJ100X500-50 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 SAIJ100X500-50 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 SIJ100X500-50
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×500 | 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 SIJ100X500-50 Is Used
Variable Press Tooling
Accommodates multiple part heights on a single press by trimming the extend stroke up to 50 mm on-site, avoiding the need to swap fixed-stroke cylinders between jobs.
Adjustable Diverter Arms
Allows field tuning of the diverter reach on a packaging line to handle changing carton widths, using the 450-500 mm stroke window to dial in the exact push distance.
Custom Pallet Stops
Provides adjustable end-position stopping for varying pallet load depths, where the external stop screw fine-tunes the 500 mm extend without re-plumbing the G1/2 air connections.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X500-50 with the SAIJ100X500-50
To replace the discontinued SIJ100X500-50, order the SAIJ100X500-50 direct (insert A after the leading S), keeping the 50 mm adjust window and 500 mm nominal stroke. Select FA, LB, or TC mountings to match your ISO 15552 fixture. Because this SKU lacks the -S magnet, it cannot accept legacy CS1-B/DS1-B sensors; add external sensing if needed. For the 500 mm stroke, use an external guide to prevent rod bending and manage side loads. The external stop screw only sets the extend end position; for load holding on air loss, use an external rod lock or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X500-50
- ✓ 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 SIJ100X500-50 FAQ
Yes, the AirTAC SIJ100X500-50 is discontinued. The direct replacement is the SAIJ100X500-50. It shares the identical ISO 15552 interface, 100 mm bore, 500 mm nominal stroke, 50 mm adjust window, and G1/2 port, but adds an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw window is 50 mm, allowing you to shorten the extend stroke from the 500 mm maximum down to 450 mm. The stop sets end position and is not a load lock; use an external rod lock for held loads.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X500-50
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X500-50 replacement — usually within 7-8 hours.