This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X500-20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X500-20S 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 SIJ80X500-20S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-20S 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 SAIJ80X500-20S, 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 → SAIJ80X500-20S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-20S
The AirTAC SIJ80X500-20S is a double-acting single-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, giving a usable 480-500 mm window. This 80 mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa, features a G3/8 port, and includes a piston magnet (-S) for legacy CS1-B/DS1-B switches.
This SIJ model is discontinued; the exact drop-in replacement is the SAIJ80X500-20S, retaining the same interface, force, and port. The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. Computed buyer insight: safe working load is ~1508 N (60% of push@0.5), yielding a ~128 kg vertical lift with a 2:1 margin. The stop sets end position but is not a load lock; use SAIL/BSAI for holding.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-20S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-20S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X500-20S |
| 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 SAIJ80X500-20S 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 SAIJ80X500-20S 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 SIJ80X500-20S
| 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 SIJ80X500-20S Is Used
Press Fit Tuning
Fine-tune the 480-500 mm extend on-site to dial in exact press fits for bearing insertion without machining hard stops.
Divertor Positioning
Adjust the extend end-point by up to 20 mm to perfectly align a divertor arm with varying package widths on the line.
Pallet Stop Calibration
Trim the extend stroke on the fly to calibrate pallet stops for mixed load depths, ensuring precise placement.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-20S with the SAIJ80X500-20S
To replace the discontinued SIJ80X500-20S, order the drop-in SAIJ80X500-20S, reusing your ISO 15552 FA, LB, or TC mounts. Size both ways: the 63 mm neighbor gives 1559 N push@0.5, while the 100 mm gives 3927 N. The 20 mm adjust window allows precise extend tuning (480-500 mm). The -S suffix provides a piston magnet for CS1-B/DS1-B switches. For the 500 mm stroke, use external guides to prevent rod bending and side-load wear. Note: the stop screw sets end position, not a lock; for load-holding without live air, specify an external rod lock or SAIL/BSAI variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X500-20S
- ✓ 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 SIJ80X500-20S FAQ
Yes, the SIJ80X500-20S is discontinued. The exact drop-in replacement is the SAIJ80X500-20S, sharing the same ISO 15552 interface, 80 mm bore, 500 mm stroke, 20 mm adjust window, G3/8 port, and mounting. The SAIJ features an upgraded two Y-shaped one-way 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, 4523 N at 0.9 MPa, and 513 kgf max at 1.0 MPa. The external stop screw window is 20 mm, allowing the extend stroke to be shortened from the 500 mm maximum down to 480 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
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