This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X50-10 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X50-10 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 SIJ80X50-10
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X50-10 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 50mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X50-10, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke50 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X50-10
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X50-10
The AirTAC SIJ80X50-10 is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 10 mm on-site, giving a usable 40-50 mm extend window from the 50 mm nominal maximum. The 80 mm bore features a 25 mm rod, G3/8 port, M20x1.5 rod thread, and 36 mm adjustable cushions. It delivers 2513 N push and 2268 N pull at 0.5 MPa, peaking at 4523 N push at 0.9 MPa.
The exact drop-in replacement is the SAIJ80X50-10, retaining the same ISO 15552 interface, force, and mounting. The SAIJ upgrade uses a two Y-shaped one-way piston seal 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), equating to a 128 kg vertical lift with a 2:1 margin. This SKU lacks a magnet (-S) and cannot take a sensor. The stop screw sets end position only; it is not a load lock, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X50-10 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X50-10 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X50-10 |
| Bore size | Ø80 mm |
| Stroke | 50 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 SAIJ80X50-10 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 SAIJ80X50-10 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 SIJ80X50-10
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×50 | 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 SIJ80X50-10 Is Used
Short-Stroke Clamping
Ideal for clamping parts where the tooling requires a 40-50 mm extend stroke, using the 10 mm adjust screw to dial in the exact grip position on-site.
Transfer Stopper Fingers
Acts as a height-specific stop finger on a conveyor line, allowing technicians to trim the 50 mm extend stroke by up to 10 mm to accommodate varied product sizes.
Compact Ejection Pusher
Used in tight machinery footprints to eject components, providing 2513 N push at 0.5 MPa with an adjustable 40-50 mm reach to fine-tune the ejection point.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X50-10 with the SAIJ80X50-10
To replace the discontinued SIJ80X50-10, order the SAIJ80X50-10 drop-in: it matches the 80 mm bore, 50 mm nominal stroke, 10 mm adjust window, G3/8 port, and FA/LB/TC mountings. When sizing both ways, the neighboring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N push. This 80 mm unit provides 2513 N push at 0.5 MPa. Choose the 10 mm adjust window if your application requires fine-tuning the extend end-position within a 40-50 mm range. Because this SKU has no -S magnet, it cannot accept legacy CS1-B/DS1-B sensors. Since the 50 mm stroke is under 300 mm, side-load risks are minimal. The external stop sets the end position but is not a lock; for load-holding without live air, specify an external rod lock or a pilot-operated check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X50-10
- ✓ 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 SIJ80X50-10 FAQ
Yes, the SIJ80X50-10 is discontinued. The exact drop-in replacement is the SAIJ80X50-10. It shares the same ISO 15552 interface, 80 mm bore, 50 mm stroke, 10 mm adjust window, G3/8 port, and mounting options. The SAIJ family also features an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
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 allows you to trim the extend stroke by up to 10 mm on-site, giving a usable extend range of 40-50 mm. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X50-10
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X50-10 replacement — usually within 7-8 hours.