This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X125-20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X125-20S in place of this model. 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 SIJ80X125-20S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-20S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 125mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X125-20S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke125 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X125-20S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-20S
The AirTAC SIJ80X125-20S is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 125 mm nominal stroke and a built-in piston magnet. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, giving a usable extend range of 105-125 mm. The 80 mm bore uses a G3/8 port, a Ø25 mm rod, and 36 mm adjustable cushions, delivering 2513 N push and 2268 N pull at 0.5 MPa. The exact drop-in replacement is the SAIJ80X125-20S, matching the interface, force, and mounting.
The SAIJ upgrade features an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life. A computed buyer insight: the safe working load is roughly 1508 N (60% of the 2513 N push at 0.5 MPa), translating to a 128 kg vertical lift with a 2:1 margin. The stop screw sets the end position but is not a load lock; for held loads use SAIL or BSAI. The -S magnet supports legacy CS1-B/DS1-B switches.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-20S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-20S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X125-20S |
| Bore size | Ø80 mm |
| Stroke | 125 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 SAIJ80X125-20S 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 SAIJ80X125-20S produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-20S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×125 | 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 SIJ80X125-20S Is Used
Press Fit Tuning
Allows operators to dial in the exact 105-125 mm extend position for pressing bearings without machining custom spacers.
Variable Length Diverter
Adjusts the extend stop on-site to deflect varying package sizes on a conveyor line within the 20 mm window.
Adjustable End Stop
Sets a precise mechanical end position for pallet handling where the nominal 125 mm stroke must be shortened to 105 mm.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-20S with the SAIJ80X125-20S
To replace the discontinued SIJ80X125-20S, order the drop-in SAIJ80X125-20S, retaining the same ISO 15552 mounting interface and G3/8 port. Size both ways using 0.5 MPa forces: the neighbouring 63 mm bore yields 1559 N push, while the 100 mm bore yields 3927 N push, compared to this 80 mm bore's 2513 N. Choose the 20 mm adjust window if your extend stroke needs on-site tuning between 105 and 125 mm. Mounting options include FA, LB, and TC brackets. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches. For strokes of 300 mm or longer, verify side-load limits to prevent rod bearing wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X125-20S
- ✓ 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 SIJ80X125-20S FAQ
Yes, the SIJ80X125-20S is discontinued. The exact drop-in replacement is the SAIJ80X125-20S, offering the same ISO 15552 interface, 125 mm stroke, 20 mm adjust window, and G3/8 port. The SAIJ features an upgraded piston seal for longer life.
The 80 mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and 4523 N push at 0.9 MPa, with a theoretical max of 513 kgf at 1.0 MPa. The external stop screw provides a 20 mm adjust window, allowing the 125 mm extend stroke to be shortened to 105 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X125-20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X125-20S replacement — usually within 7-8 hours.