This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X225-40 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X225-40 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 SIJ80X225-40
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X225-40 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 225mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X225-40, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke225 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X225-40
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X225-40
The AirTAC SIJ80X225-40 is a double-acting single-rod ISO 15552 adjustable-stroke cylinder, now discontinued. Its external stop screw lets you trim the extend stroke by up to 40mm on-site, giving a usable range of 185-225mm (225mm is the maximum). This 80mm bore delivers 2513N push and 2268N pull at 0.5MPa, features a G3/8 port, and has 36mm adjustable cushions. The exact drop-in replacement is the SAIJ80X225-40, matching the interface, force, and mounting.
The stop screw sets the end position but is not a load lock; loads drift on air loss. For safe sizing, the working load is roughly 1508N (60% of the 2513N push at 0.5MPa), yielding a 128kg vertical lift with a 2:1 margin. Upgrading to the SAIJ brings an improved two Y-shaped one-way piston seal for lower start-up pressure. Because this SKU lacks a -S magnet, it cannot accept a magnetic switch.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X225-40 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X225-40 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X225-40 |
| Bore size | Ø80 mm |
| Stroke | 225 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 SAIJ80X225-40 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 SAIJ80X225-40 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 SIJ80X225-40
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×225 | 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 SIJ80X225-40 Is Used
Press Fit Tuning
Adjust the extend stroke by up to 40mm on-site to set precise pressing depth for bearings without machining hard stops.
Variable Length Diverter
Trim the actuation reach on a sorting line to accommodate different package sizes on the fly using the external stop screw.
Adjustable Sealing Head
Fine-tune the downstroke end position for various carton heights, ensuring consistent sealing pressure across product changeovers.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X225-40 with the SAIJ80X225-40
To replace the discontinued SIJ80X225-40, order the drop-in SAIJ80X225-40, retaining the 225mm nominal stroke and 40mm adjust window. If sizing both ways, the neighboring 63mm bore yields 2182N push at 0.7MPa, while the 100mm bore yields 5497N push at 0.7MPa. Choose the 40mm adjust window if you need to fine-tune the extend end position on-site. Mounting options include FA, LB, and TC. 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 guidance to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X225-40
- ✓ 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 SIJ80X225-40 FAQ
Yes, the SIJ80X225-40 is discontinued. The exact drop-in replacement is the SAIJ80X225-40, offering the same ISO 15552 interface, 225mm stroke, 40mm adjust window, and G3/8 port. The SAIJ also features an upgraded two Y-shaped one-way piston seal for longer life.
The 80mm bore provides 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, and 4523N push at 0.9MPa. The external stop screw allows trimming the extend stroke by up to 40mm on-site (usable range 185-225mm). The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
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