This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X100-50H — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X100-50H 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 SIJ80X100-50H
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-50H 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 SAIJ80X100-50H, 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 → SAIJ80X100-50H
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-50H
The AirTAC SIJ80X100-50H is a double-acting single-rod ISO 15552 adjustable-stroke cylinder featuring a Viton/FKM -H high-temperature seal rated for 0 to 150 C. Its external stop screw lets you trim the extend stroke by up to 50 mm on-site, yielding a usable 50-100 mm extension out of the 100 mm nominal maximum. The 80 mm bore utilizes a G3/8 port, a Ø25 mm piston rod with an M20x1.5 thread, and 36 mm adjustable air cushions at each end. This SIJ model is discontinued and is fully replaced by the SAIJ80X100-50H.
The SAIJ drop-in maintains the exact ISO 15552 mounting interface, bore, stroke, and force characteristics, while upgrading to a two Y-shaped one-way piston seal for lower start-up pressure and longer life. At 0.5 MPa it delivers 2513 N push and 2268 N pull, scaling to 4523 N at 0.9 MPa. A computed buyer insight from the 0.5 MPa data suggests a safe working load of roughly 1508 N (60% of push), translating to a vertical lift capacity of about 128 kg with a 2:1 margin. Note this SKU lacks a -S magnet and cannot accept a magnetic switch.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-50H Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-50H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X100-50H |
| 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 SAIJ80X100-50H 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 SAIJ80X100-50H 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 SIJ80X100-50H
| 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 SIJ80X100-50H Is Used
High-Temp Press Tending
Utilizing the Viton -H seal for 0-150 C environments, this cylinder tends small presses where the 50 mm stroke trim accommodates varying tooling stack heights without machining new spacers.
Variable-Length Diverter
Acts as a routing diverter on a conveyor line, using the external stop to retract the guide arm between 50 and 100 mm to accommodate different package widths on the fly.
Adjustable Pallet Stop
Functions as an end-stop in a pallet handling cell, allowing technicians to dial in the 80 mm bore extend position precisely to 50 mm for smaller pallets without repositioning the bracket.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-50H with the SAIJ80X100-50H
To replace the discontinued SIJ80X100-50H, order the drop-in SAIJ80X100-50H, which preserves the G3/8 port, M20x1.5 rod thread, and 36 mm cushions. If sizing both ways, the neighboring 63 mm bore yields 2182 N push at 0.7 MPa, while the 100 mm bore provides 5497 N push at 0.7 MPa. The -50 adjust window is ideal if your end position requires field tuning between 50 and 100 mm. Choose FA, LB, or TC mountings based on your ISO 15552 fixture. Because this SKU has no -S magnet, sensing requires external methods. For strokes at or above 300 mm, verify side-load limits to prevent guide wear. The stop screw sets end position but is not a load lock; for held loads use an external rod lock, a pilot-operated check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X100-50H
- ✓ 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 SIJ80X100-50H FAQ
Yes, the SIJ80X100-50H is discontinued. The exact drop-in replacement is the SAIJ80X100-50H, which shares the identical ISO 15552 interface, 80 mm bore, 100 mm nominal stroke, 50 mm adjust window, and G3/8 port. The SAIJ family also introduces upgraded two Y-shaped one-way piston seals and adds the SAIL and BSAI lock variants the SI line lacked.
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 50 mm on-site, giving a usable extension range of 50-100 mm. The stop sets the end position and is not a load lock; a plain cylinder drifts on air loss, so use an external rod lock for held loads.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X100-50H
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X100-50H replacement — usually within 7-8 hours.