This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X500-30S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X500-30S 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 SIJ80X500-30S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-30S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 500mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X500-30S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke500 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X500-30S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-30S
The AirTAC SIJ80X500-30S is a discontinued double-acting single-rod adjustable-stroke ISO 15552 cylinder. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 470-500 mm range from the 500 mm nominal maximum. The 80 mm bore features a 25 mm carbon rod, M20x1.5 thread, G3/8 port, and 36 mm adjustable cushions. It delivers 2513 N push and 2268 N pull at 0.5 MPa, peaking at 513 kgf. The exact drop-in replacement is the SAIJ80X500-30S, matching the interface, force, and adjust window.
The SAIJ upgrade utilizes an advanced two Y-shaped one-way piston seal for low start-up pressure and extended 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. The stop screw sets end position but is not a load lock; drift occurs on air loss. For held loads, use an external rod lock or the SAIL/BSAI variants. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B sensors.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-30S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X500-30S |
| Bore size | Ø80 mm |
| Stroke | 500 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 SAIJ80X500-30S 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 SAIJ80X500-30S 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 SIJ80X500-30S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×500 | 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 SIJ80X500-30S Is Used
Press Fit Tuning
Allows operators to dial in the exact 470-500 mm extend position for inserting bearings without machining custom spacers.
Variable Length Diverter
Adjusts the extend stop on-site to deflect varying package sizes on a packaging line within the 30 mm trim window.
Adjustable End Stop
Sets a precise physical end position for pallets, where the external screw provides a hard stop independent of pneumatic pressure.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-30S with the SAIJ80X500-30S
To replace the discontinued SIJ80X500-30S, order the drop-in SAIJ80X500-30S, which preserves the G3/8 port, 500 mm nominal stroke, 30 mm adjust window, and ISO 15552 mounting dimensions. 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; this 80 mm bore provides 2513 N. Choose the 30 mm adjust window if your extend stroke needs on-site tuning between 470 and 500 mm. Mounting options include Basic, FA, LB, and TC brackets. The -S suffix ensures a piston magnet is present for legacy CS1-B/DS1-B switches (current AirTAC switches are used on the SAIJ). Because the stroke is 500 mm, add external guides to prevent rod bending and manage side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X500-30S
- ✓ 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 SIJ80X500-30S FAQ
Yes, the SIJ80X500-30S is discontinued. The exact drop-in replacement is the SAIJ80X500-30S. It shares the identical ISO 15552 interface, 80 mm bore, 500 mm stroke, 30 mm adjust window, G3/8 port, and mounting options. The SAIJ family also features an upgraded piston seal for 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. The external stop screw window is 30 mm, allowing the extend stroke to be shortened from 500 mm down to 470 mm on-site. Note the stop sets position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X500-30S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X500-30S replacement — usually within 7-8 hours.