This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X150-40S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X150-40S 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 SIJ80X150-40S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-40S 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 drop-in replacement is the SAIJ80X150-40S, 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 → SAIJ80X150-40S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-40S
The AirTAC SIJ80X150-40S is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 150 mm nominal stroke and a 40 mm on-site trim window, yielding a usable extend range of 110-150 mm. The external stop screw lets you dial in the exact end position without mechanical remachining, though it only sets the endpoint and is never a load lock. This 80 mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa, peaking at 4523 N push at 0.9 MPa, via a G3/8 port and a 25 mm piston rod. Because the SIJ line is end-of-life, the exact drop-in replacement is the SAIJ80X150-40S—matching the ISO 15552 mounting interface, bore, force, and adjust window.
The SAIJ successor retains the core specs but upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. For sizing, a safe working load is roughly 1508 N (60% of the 0.5 MPa push), translating to a 128 kg vertical lift with a 2:1 margin. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches. Remember that 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 SIJ80X150-40S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-40S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X150-40S |
| 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 SAIJ80X150-40S 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 SAIJ80X150-40S 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 SIJ80X150-40S
| 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 SIJ80X150-40S Is Used
Variable Pitch Indexing
Dialing in the extend stroke by up to 40 mm on-site allows a single cylinder to drive multiple varying pitch lengths without swapping the entire actuator assembly.
Adjustable Transfer Pusher
Trimming the extend stroke from 150 mm down to 110 mm accommodates varying package sizes on a transfer line, ensuring precise push-off positioning without remounting.
Variable Depth Forming
An external stop screw provides repeatable bottom-out positioning for carton forming or flap folding, allowing operators to tweak the 110-150 mm extend depth quickly during format changes.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-40S with the SAIJ80X150-40S
To replace the discontinued SIJ80X150-40S, order the exact drop-in SAIJ80X150-40S, which preserves the 150 mm stroke, 40 mm adjust window, G3/8 port, and ISO 15552 mounting footprint. When sizing both ways, the neighboring 63 mm bore yields 2182 N push at 0.7 MPa, while the 100 mm bore yields 5497 N push at 0.7 MPa. Choose the 40 mm adjust window if your extend stroke needs on-site tuning between 110 mm and 150 mm; the stop screw sets the endpoint but provides no load-holding capability. Mounting options include Basic, FA, LB, and TC brackets. The -S suffix ensures piston magnet compatibility for legacy CS1-B/DS1-B sensors. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X150-40S
- ✓ 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 SIJ80X150-40S FAQ
Yes, the SIJ80X150-40S is discontinued. The exact drop-in replacement is the SAIJ80X150-40S, which shares the same ISO 15552 interface, 80 mm bore, 150 mm stroke, 40 mm adjust window, and G3/8 port. The SAIJ family also features an upgraded two-piece Y-shaped piston seal for longer life.
This 80 mm bore cylinder features a 40 mm adjust window (usable extend stroke 110-150 mm). Force output is 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. It uses a G3/8 port and adjustable 36 mm cushions at each end.
Related AirTAC SAI Cylinders
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