This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X150-100STC, 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 SIJ80X150-100STC
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-100STC 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 SAIJ80X150-100STC, 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 → SAIJ80X150-100STC
- 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 SIJ80X150-100STC
The AirTAC SIJ80X150-100STC is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 150 mm nominal stroke and a built-in piston magnet (-S). An external stop screw lets you trim the extend stroke by up to 100 mm on-site, yielding a usable extend range of 50-150 mm. The stop sets the end position; it is not a load lock.
The direct replacement is the SAIJ80X150-100STC, retaining the same ISO 15552 interface, TC mounting, force, and adjust window. The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. Remember, a plain cylinder drifts on air loss; for held loads use an external rod lock or SAIL/BSAI variant.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-100STC Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-100STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X150-100STC |
| 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 SAIJ80X150-100STC 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 SAIJ80X150-100STC 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 SIJ80X150-100STC
| 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 SIJ80X150-100STC Is Used
Variable Depth Drilling Feed
Trimming the extend stroke by up to 100 mm on-site allows a single cylinder to drive multiple drilling depths on a machining line without swapping the entire actuator.
Adjustable Transfer Pusher
A packaging transfer station can fine-tune the 50-150 mm extend window to push varying carton widths to diverging lanes, using the TC mount for rigid trunnion support.
Variable Height Pallet Stops
Inbound pallet conveyors use the external stop screw to set precise stopping heights for different pallet configurations, adjusting the end position without reprogramming valves.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-100STC with the SAIJ80X150-100STC
To replace the discontinued SIJ80X150-100STC, map directly to the SAIJ80X150-100STC. The 100 mm adjust window allows on-site extend tuning from 50 to 150 mm. The TC mounting accessory uses the ISO 15552 interface for exact interchange. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches (the SAIJ uses current AirTAC switches). For strokes >=300 mm, verify side-load guidance to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X150-100STC
- ✓ 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 SIJ80X150-100STC FAQ
Yes, the SIJ80X150-100STC is discontinued. The direct replacement is the SAIJ80X150-100STC, which shares the same ISO 15552 interface, 80 mm bore, 150 mm nominal stroke, 100 mm adjust window, G3/8 port, and TC mounting. The SAIJ family also upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life.
The 80 mm bore has a G3/8 port, Ø25 mm rod, and M20x1.5 thread. The external stop screw provides a 100 mm adjust window, allowing the extend stroke to be shortened from the 150 mm maximum down to 50 mm. The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X150-100STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X150-100STC replacement — usually within 7-8 hours.