This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X500-40 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X500-40 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 SIJ80X500-40
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-40 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 SAIJ80X500-40, 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 → SAIJ80X500-40
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-40
The AirTAC SIJ80X500-40 is a double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 500 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 40 mm on-site, giving a usable extend range of 460-500 mm. This 80 mm bore uses a G3/8 port, a 25 mm rod, and 36 mm adjustable air cushions at each end. The stop sets the end position; it is not a load lock, and this non-magnetic SKU cannot take a switch.
This SIJ model is discontinued; the exact drop-in replacement is the SAIJ80X500-40, retaining the same ISO 15552 mounting interface, bore, stroke, and 2513 N push force at 0.5 MPa. The SAIJ upgrade uses a two-piece Y-shaped piston seal for low start-up pressure and long life. As a computed buyer insight, the safe working load is about 1508 N (60% of the 0.5 MPa push force), allowing a 128 kg vertical lift with a 2:1 margin.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-40 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-40 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X500-40 |
| 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 SAIJ80X500-40 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 SAIJ80X500-40 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 SIJ80X500-40
| 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 SIJ80X500-40 Is Used
Variable Depth Drilling Jigs
Allows operators to dial in the exact 460-500 mm extend position for different material thicknesses on-site without swapping the entire actuator.
Adjustable Transfer Pushers
Fine-tunes the extend end-point by up to 40 mm to accommodate varying package sizes on a packaging line while maintaining a rigid external stop.
Multi-Position Pallet Stops
Sets a hard mechanical end position for pallets at 460 to 500 mm, ensuring precise placement without relying solely on valve timing.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X500-40 with the SAIJ80X500-40
To replace the discontinued SIJ80X500-40, order the SAIJ80X500-40 drop-in. It matches the 80 mm bore, 500 mm stroke, 40 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. Choose the 40 mm adjust window if your extend stroke needs 460-500 mm of field tuning. Because this SKU lacks the -S magnet, it cannot accept legacy CS1-B/DS1-B sensors. For the 500 mm long stroke, use external guides to prevent rod bending and side-load wear. A plain cylinder does not hold loads on air loss; for held loads use an external rod lock or the SAIL/BSAI variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X500-40
- ✓ 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 SIJ80X500-40 FAQ
Yes, the SIJ80X500-40 is discontinued. The exact drop-in replacement is the SAIJ80X500-40. It shares the identical ISO 15552 interface, 80 mm bore, 500 mm stroke, 40 mm adjust window, G3/8 port, and mountings. The SAIJ features an upgraded two-piece Y-shaped 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 provides a 40 mm adjust window, allowing the extend stroke to be shortened from the 500 mm maximum down to 460 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
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