This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X100-20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X100-20S 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 SIJ80X100-20S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-20S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 100mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X100-20S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X100-20S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-20S
The AirTAC SIJ80X100-20S is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 100 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 80-100 mm end position. The 80 mm bore features a G3/8 port, M20x1.5 rod thread, and 36 mm adjustable air cushions, delivering 2513 N push and 2268 N pull at 0.5 MPa. The exact drop-in replacement is the SAIJ80X100-20S, retaining the same interface, force, and mounting.
The SAIJ upgrade incorporates an improved two-piece Y-shaped piston seal for lower start-up pressure and longer life. For sizing, the computed safe working load is roughly 1508 N (60% of the 0.5 MPa push force), translating to a 128 kg vertical lift with a 2:1 safety margin. Remember the stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, so use an external rod lock or SAIL/BSAI variant for held loads. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-20S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-20S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X100-20S |
| Bore size | Ø80 mm |
| Stroke | 100 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 SAIJ80X100-20S 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 SAIJ80X100-20S 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 SIJ80X100-20S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×100 | 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 SIJ80X100-20S Is Used
Variable Pitch Forming
A metal stamping line uses the 20 mm adjust window to alter the extend end-position for different material thicknesses without swapping the entire cylinder.
Adjustable Diverter Gate
A package sorting diverter trims its extend stroke on-site by up to 20 mm to accommodate varying box widths while maintaining the 80 mm bore push force.
Tiered Stacking Pusher
An automated palletizing cell adjusts the pusher end position to stack varying product heights, relying on the 36 mm cushions to decelerate the load.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-20S with the SAIJ80X100-20S
To replace the discontinued SIJ80X100-20S, order the drop-in SAIJ80X100-20S, keeping the 100 mm maximum stroke and 20 mm adjust window. Size both ways by checking neighboring bores: the 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N. Reuse your existing ISO 15552 FA, LB, or TC mounting hardware. The -S magnet supports legacy CS1-B/DS1-B sensors, though the SAIJ replacement uses current AirTAC switches. Because the nominal stroke is 100 mm, side-load concerns are minimal. The external stop screw provides field stroke tuning, but it does not lock the load pneumatically.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X100-20S
- ✓ 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 SIJ80X100-20S FAQ
Yes, the SIJ80X100-20S is discontinued. The exact drop-in replacement is the SAIJ80X100-20S. It shares the identical ISO 15552 interface, 80 mm bore, 100 mm stroke, 20 mm adjust window, G3/8 port, and mounting options, but adds an upgraded piston seal.
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 20 mm adjust window, allowing the 100 mm extend stroke to be shortened to 80 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
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