This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X80-50TC, 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 SIJ80X80-50TC
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-50TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 80mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X80-50TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke80 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X80-50TC
- 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 SIJ80X80-50TC
The AirTAC SIJ80X80-50TC is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a TC mount. An external stop screw lets you trim the extend stroke by up to 50 mm on-site, giving a usable 30-80 mm stroke out of the 80 mm nominal maximum. This 80 mm bore uses a G3/8 port, a Ø25 mm rod, and 36 mm adjustable air cushions. The direct replacement is the SAIJ80X80-50TC, matching the interface, force, and mounting.
The SAIJ successor uses an upgraded two-piece Y-shaped piston seal for lower start-up pressure. Remember the stop screw sets end position only; it is not a load lock, so use an external rod lock for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-50TC Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-50TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X80-50TC |
| Bore size | Ø80 mm |
| Stroke | 80 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 SAIJ80X80-50TC 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 SAIJ80X80-50TC 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 SIJ80X80-50TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | 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 SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-50TC Is Used
Press Fit Tuning
Pin insertion lines needing field stroke tuning to accommodate varying material thicknesses without swapping the cylinder body.
Divert Stop Adjustment
Package diverters where the extend stop position must be precisely trimmed on-site to handle different carton depths safely.
Pallet Positioning
End-of-line pallet handling using the TC mount to set variable push-off distances based on pallet configuration changes.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X80-50TC with the SAIJ80X80-50TC
To replace the discontinued SIJ80X80-50TC, order the direct replacement SAIJ80X80-50TC, keeping the 80 mm bore, 80 mm stroke, 50 mm adjust window, and TC mounting. The 50 mm adjust window is ideal if your extend stroke needs field tuning between 30 and 80 mm. Because this SKU lacks the -S suffix, it has no magnet and cannot accept a reed switch. The TC mount allows ISO 15552 interface reuse. For strokes of 300 mm or longer, verify side-load limits to prevent rod distortion.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X80-50TC
- ✓ 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 SIJ80X80-50TC FAQ
Yes, the SIJ80X80-50TC is discontinued. The direct replacement is the SAIJ80X80-50TC, offering the same ISO 15552 interface, 80 mm bore, 80 mm stroke, 50 mm adjust window, G3/8 port, and TC mounting.
The external stop screw provides a 50 mm adjust window, allowing you to trim the extend stroke from the 80 mm maximum down to 30 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X80-50TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X80-50TC replacement — usually within 7-8 hours.