This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X250-10S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X250-10S 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 SIJ80X250-10S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X250-10S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 250mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X250-10S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke250 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X250-10S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X250-10S
The AirTAC SIJ80X250-10S is a double-acting, single-rod ISO 15552 adjustable-stroke cylinder featuring a 250 mm nominal stroke and a built-in piston magnet (-S). An external stop screw allows you to trim the extend stroke by up to 10 mm on-site, yielding a usable extend range of 240-250 mm. This 80 mm bore utilizes a G3/8 port, a Ø25 mm piston rod, and 36 mm adjustable air cushions at each end. The stop screw strictly sets the end position; it is not a load lock, and the cylinder requires live air to function.
This SIJ model is discontinued and the exact drop-in replacement is the SAIJ80X250-10S, retaining the same ISO 15552 mounting interface, bore, and force. The SAIJ upgrade introduces a two-piece Y-shaped piston seal for lower start-up pressure and longer life. At 0.5 MPa it delivers 2513 N push and 2268 N pull force. For sizing, the safe working load is approximately 1508 N (60% of the 0.5 MPa push), translating to a 128 kg vertical lift capacity with a 2:1 safety margin.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X250-10S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X250-10S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X250-10S |
| Bore size | Ø80 mm |
| Stroke | 250 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 SAIJ80X250-10S 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 SAIJ80X250-10S 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 SIJ80X250-10S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×250 | 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 SIJ80X250-10S Is Used
Press Fit Calibration
Fine-tune a 240-250 mm extend stroke on-site to perfectly seat bearings without redrawing the entire pneumatic layout.
Variable Package Diverter
Adjust the extend stop by up to 10 mm to alter the pusher reach for slightly different carton widths on a packaging line.
Pallet Stop Positioning
Dial in the exact end position for a pallet stop gate, ensuring precise alignment without needing custom spacers.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X250-10S with the SAIJ80X250-10S
To replace the discontinued SIJ80X250-10S, order the drop-in SAIJ80X250-10S, which preserves the G3/8 port, M20x1.5 rod thread, and 36mm cushion. If resizing, the neighboring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N. The -10 mm adjust window is ideal for fine 240-250 mm extend tuning; for larger trims, select a wider adjust model. Mounting choices include Basic, FA, LB, and TC brackets. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches (the SAIJ uses current switches). For stroke lengths of 300 mm or more, verify side-load limits to prevent rod distortion. Remember, the stop screw sets position but does not lock; for load holding on air loss, use an external rod lock or the SAIL/BSAI variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X250-10S
- ✓ 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 SIJ80X250-10S FAQ
Yes, the SIJ80X250-10S is discontinued. The exact drop-in replacement is the SAIJ80X250-10S. It shares the identical ISO 15552 interface, 80mm bore, 250mm stroke, 10mm adjust window, and G3/8 port, but features an upgraded two-piece Y-shaped piston seal for longer life.
The 80mm bore provides 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 10 mm adjust window, allowing the 250 mm extend stroke to be shortened to 240 mm on-site. The stop sets position and is not a load lock.
Related AirTAC SAI Cylinders
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