This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X150-20TC, 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 SIJ80X150-20TC
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-20TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 150mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X150-20TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke150 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X150-20TC
- 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 SIJ80X150-20TC
The AirTAC SIJ80X150-20TC is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued and replaced by the SAIJ80X150-20TC. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, giving a usable 130-150 mm window from the 150 mm nominal maximum. This 80 mm bore features a Ø25 mm rod, M20x1.5 thread, 36 mm adjustable cushions, G3/8 port, and 30-800 mm/s speed.
The SAIJ direct replacement reuses your ISO 15552 mounting interface and adds an upgraded two Y-shaped one-way piston seal for lower start-up pressure. Note: this SKU lacks a -S magnet and cannot take a switch. The stop screw sets end position only; it is not a load lock, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-20TC Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-20TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X150-20TC |
| Bore size | Ø80 mm |
| Stroke | 150 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 SAIJ80X150-20TC 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 SAIJ80X150-20TC 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 SIJ80X150-20TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×150 | 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 SIJ80X150-20TC Is Used
Press Fit Tuning
Adjusts the extend stroke on-site by up to 20 mm to set precise pressing depth for bearings without swapping cylinders.
Transfer Diverter
Trims the extend end position to accommodate varying package sizes on a TC-mounted pivoting diverter arm.
End-of-Line Stops
Fine-tunes the stopping point of pallets on a conveyor by adjusting the external stop screw within the 130-150 mm window.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-20TC with the SAIJ80X150-20TC
To replace the discontinued SIJ80X150-20TC, map directly to the SAIJ80X150-20TC direct, keeping the TC mount, G3/8 port, and 20 mm adjust window. Choose the 20 mm adjust window if your field stroke tuning requires trimming the extend by up to 20 mm. The TC mounting accessory provides a trunnion interface for pivoting. Because this SKU has no -S suffix, it cannot accept a magnetic switch; for sensing, select a -S model (legacy CS1-B/DS1-B accuracy). For strokes >=300 mm, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X150-20TC
- ✓ 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 SIJ80X150-20TC FAQ
Yes, the SIJ80X150-20TC is discontinued. The direct replacement is the SAIJ80X150-20TC. It shares the same ISO 15552 interface, 80 mm bore, 150 mm stroke, 20 mm adjust window, G3/8 port, and TC mounting, but adds an upgraded piston seal.
The external stop screw window is 20 mm, allowing you to trim the extend stroke from the 150 mm nominal maximum down to 130 mm. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X150-20TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X150-20TC replacement — usually within 7-8 hours.