This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X275-75 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X275-75 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 SIJ80X275-75
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X275-75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 275mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X275-75, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke275 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X275-75
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X275-75
The AirTAC SIJ80X275-75 is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder. An external stop screw shortens the extend stroke on-site by up to 75 mm, yielding a usable 200-275 mm stroke window from the 275 mm nominal maximum. The 80 mm bore features a 25 mm rod, M20x1.5 thread, 36 mm adjustable cushions, G3/8 port, and 30-800 mm/s speed. Because this SKU lacks a -S suffix, it cannot accept a magnetic switch.
The exact drop-in replacement is the SAIJ80X275-75, matching the ISO 15552 mounting interface, force, and adjust window. The SAIJ family utilizes an upgraded two Y-shaped one-way piston seal for low start-up pressure and long life. At 0.5 MPa it delivers 2513 N push and 2268 N pull. The stop screw sets end position but is not a load lock; for held loads use an external rod lock or SAIL/BSAI variant.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X275-75 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X275-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X275-75 |
| Bore size | Ø80 mm |
| Stroke | 275 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 SAIJ80X275-75 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 SAIJ80X275-75 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 SIJ80X275-75
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×275 | 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 SIJ80X275-75 Is Used
Variable Depth Forming Press
Tune the 75 mm extend window on-site to alter material bend depth without swapping tooling.
Adjustable Transfer Diverter
Field-trim the extend stroke from 275 mm down to 200 mm to accommodate changing package sizes.
Tiered Pallet Positioning
Set the external stop screw to hit varied pallet heights precisely while using the full retraction.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X275-75 with the SAIJ80X275-75
To replace the SIJ80X275-75, order the drop-in SAIJ80X275-75, retaining your FA, LB, or TC mounts. The 75 mm adjust window lets you tune the extend stroke down to 200 mm without machining. If sizing both ways, the neighboring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N. For safe sizing, the 80 mm bore handles a working load around 1508 N (60% of the 2513 N push at 0.5 MPa) and a vertical lift of roughly 128 kg with a 2:1 margin. For stroke lengths at or above 300 mm, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X275-75
- ✓ 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 SIJ80X275-75 FAQ
Yes, the SIJ80X275-75 is discontinued. The exact drop-in replacement is the SAIJ80X275-75, offering the same ISO 15552 interface, 80 mm bore, 275 mm stroke, 75 mm adjust window, and G3/8 port. The SAIJ uses an upgraded piston seal and is a direct bolt-in upgrade.
The 80 mm 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 75 mm adjust window, allowing the extend stroke to be shortened from the 275 mm nominal maximum down to 200 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
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