This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X150-50H, 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 SIJ80X150-50H
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-50H 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 SAIJ80X150-50H, 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 → SAIJ80X150-50H
- 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 SIJ80X150-50H
The AirTAC SIJ80X150-50H is a double-acting double-rod ISO 15552 adjustable-stroke cylinder featuring a 80mm bore and 150mm nominal stroke. An external stop screw allows you to trim the extend stroke by up to 50mm on-site, yielding a usable 100-150mm extension. The -H designation specifies a Viton/FKM seal enabling 0-150C high-temperature operation. This SIJ model is discontinued; the direct replacement is the SAIJ80X150-50H, retaining the same interface, force, and adjustability.
The SAIJ successor incorporates an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life. Because this SKU lacks a -S suffix, it has no magnet and cannot accept a magnetic switch. Remember the stop screw sets end position only; it is not a load lock, and a plain cylinder drifts on air loss. For held loads, use an external rod lock or the SAIL/BSAI variants.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-50H Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-50H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X150-50H |
| 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 SAIJ80X150-50H 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 SAIJ80X150-50H 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 SIJ80X150-50H
| 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 SIJ80X150-50H Is Used
High-Temp Press Tending
Positioning parts in a heated press where the Viton -H seal survives 0-150C, while the 50mm adjust window tunes the extend stroke to accommodate varying die thicknesses.
Variable-Length Diverter
Actuating a sorting arm where the extend stroke must be precisely shortened on-site by up to 50mm to redirect different package sizes without changing the cylinder.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-50H with the SAIJ80X150-50H
To replace the discontinued SIJ80X150-50H, order the direct replacement SAIJ80X150-50H, which preserves the G3/8 port, 25mm rod, 36mm cushion, and ISO 15552 mounting dimensions. Choose the 50mm adjust window if your application requires field tuning the extend stroke down to 100mm. FA, LB, and TC mountings reuse existing ISO 15552 interface dimensions. This non-magnetic SKU cannot take a sensor; for legacy sensing use CS1-B/DS1-B on -S models. For strokes >=300mm, verify side-load tolerance to prevent guide wear. The stop screw is not a lock; for load holding on air loss, specify a pilot-operated check valve or SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X150-50H
- ✓ 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 SIJ80X150-50H FAQ
Yes, the SIJ80X150-50H is discontinued. The direct replacement is the SAIJ80X150-50H, which matches the 80mm bore, 150mm stroke, 50mm adjust window, G3/8 port, and ISO 15552 mounting interface. The SAIJ family also features an upgraded piston seal for longer life.
The nominal 150mm extend stroke can be shortened on-site by up to 50mm via the external stop screw (usable range 100-150mm). The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X150-50H
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X150-50H replacement — usually within 7-8 hours.