This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ50X100-10, 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 SIJ50 Double Rod Adjustable Cylinder SIJ50X100-10
The AirTAC SIJ50 Double Rod Adjustable Cylinder SIJ50X100-10 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø50mm bore and 100mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ50X100-10, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke100 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ50X100-10
- 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 SIJ50 Double Rod Adjustable Cylinder SIJ50X100-10
The AirTAC SIJ50X100-10 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 10 mm on-site, yielding a usable 90-100 mm extension out of the 100 mm nominal maximum. As an end-of-life unit, its direct replacement is the SAIJ50X100-10, which preserves the original mounting interface, force, and adjust window.
The SAIJ successor upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life, while introducing the SAIL air-released lock, SAIF integrated valve, and BSAI clamp-lock variants absent from the legacy SI line. Note that this non-magnet SKU (-S omitted) cannot accept a position switch, and the stop screw sets end position only—it is not a load lock.
Airtac SIJ50 Double Rod Adjustable Cylinder SIJ50X100-10 Technical Specifications
| Model | Airtac SIJ50 Double Rod Adjustable Cylinder SIJ50X100-10 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ50X100-10 |
| Bore size | Ø50 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ50X100-10 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAIJ50X100-10 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ50 Double Rod Adjustable Cylinder SIJ50X100-10
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×100 | 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 SIJ50 Double Rod Adjustable Cylinder SIJ50X100-10 Is Used
Press Fit Tuning
Final insertion of bearings or pins where the 10 mm on-site extend trim allows operators to dial in the exact 90-100 mm bottoming position without changing the entire cylinder.
Transfer Diverter
Actuating a routing flap on a packaging line where product size variations require slight end-position adjustments to the extend stroke to avoid crushing cartons.
Pallet Stop Adjustment
Deploying a physical stop block for incoming pallets, using the external screw to fine-tune the halt position within a 10 mm window as pallet types change.
Replacing the Airtac SIJ50 Double Rod Adjustable Cylinder SIJ50X100-10 with the SAIJ50X100-10
To replace the discontinued SIJ50X100-10, order the direct replacement SAIJ50X100-10, which matches the 50 mm bore, 100 mm nominal stroke, 10 mm adjust window, G1/4 port, and ISO 15552 mounting footprint. Select the 10 mm adjust window if you need precise 90-100 mm extend tuning. Mounting attachments (FA, LB, TC) reuse standard ISO 15552 interface dimensions. Because this SKU lacks the -S magnet, it cannot support legacy CS1-B/DS1-B sensors. For strokes of 300 mm or longer, verify side-load limits to prevent guide failure. Remember that the stop screw only sets the end position; for load holding on air loss, use an external rod lock, a pilot-operated check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ50X100-10
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ50 Double Rod Adjustable Cylinder SIJ50X100-10 FAQ
Yes, the AirTAC SIJ50X100-10 is discontinued. The direct replacement is the SAIJ50X100-10. It offers the same ISO 15552 interface, 50 mm bore, 100 mm nominal stroke, 10 mm adjust window, G1/4 port, and mounting options, but features an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw provides a 10 mm adjust window, allowing you to shorten the extend stroke from the 100 mm maximum down to 90 mm. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ50X100-10
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ50X100-10 replacement — usually within 7-8 hours.