This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X30-20, 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 SIJ80 Dual Axis Adjustable Cylinder SIJ80X30-20
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X30-20 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 30mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X30-20, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke30 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X30-20
- 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 SIJ80 Dual Axis Adjustable Cylinder SIJ80X30-20
The AirTAC SIJ80X30-20 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with an 80 mm bore and 30 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 10-30 mm end position. The stop sets the end position; it is NOT a load lock.
The direct replacement is the SAIJ80X30-20, retaining the same ISO 15552 mounting interface, force, and adjust window. The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This SKU lacks a -S magnet and cannot take a magnetic switch.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X30-20 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X30-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X30-20 |
| Bore size | Ø80 mm |
| Stroke | 30 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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 SAIJ80X30-20 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAIJ80X30-20 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X30-20
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×30 | 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 SIJ80 Dual Axis Adjustable Cylinder SIJ80X30-20 Is Used
Short-Stroke Clamping
Clamp parts where the exact grip distance varies by up to 20 mm, using the external stop screw to tune the extend position on-site.
Diverting Gate Stop
Actuate a short diverting gate or flow barrier, adjusting the extend reach precisely to accommodate different package profiles.
Press Pin Seating
Drive pins over a 10-30 mm stroke, dialing in the exact seating depth with the stop screw without reprogramming the machine.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X30-20 with the SAIJ80X30-20
To replace the discontinued SIJ80X30-20, order the direct replacement SAIJ80X30-20. The 20 mm adjust window is ideal if your end-stop varies slightly, but remember the stop is not a lock. Reuse FA, LB, or TC mounts via the ISO 15552 interface. Because this SKU has no -S magnet, it cannot accept legacy CS1-B/DS1-B sensors. A plain cylinder drifts on air loss; for held loads use an external rod lock, pilot-operated check valve, or the SAIL/BSAI lock variant. Side-load note: stroke is 30 mm, so no deflection concerns apply.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X30-20
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X30-20 FAQ
Yes, the AirTAC SIJ80X30-20 is discontinued. The direct replacement is the SAIJ80X30-20. It shares the same ISO 15552 interface, 80 mm bore, 30 mm stroke, 20 mm adjust window, G3/8 port, and force ratings. The SAIJ family uses an upgraded two Y-shaped one-way piston seal for longer life.
The double-acting double-rod SIJ80X30-20 has a 20 mm adjust window (usable extend stroke 10-30 mm). It uses a G3/8 port. The stop sets end position but is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X30-20
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X30-20 replacement — usually within 7-8 hours.