This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X150-50H — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X150-50H 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 SIJ80X150-50H
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-50H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 150mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X150-50H, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke150 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X150-50H
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-50H
The AirTAC SIJ80X150-50H is a double-acting single-rod ISO 15552 adjustable-stroke cylinder featuring a 80mm bore and 150mm nominal stroke. An external stop screw allows you to trim the extend stroke by up to 50mm on-site, yielding a usable 100-150mm extension. The -H designation specifies a Viton/FKM seal enabling 0-150C high-temperature operation. Equipped with a 25mm rod, M20x1.5 thread, 36mm adjustable cushions, and a G3/8 port, this unit delivers 2513N push and 2268N pull at 0.5MPa. This SIJ model is discontinued; the exact drop-in replacement is the SAIJ80X150-50H, retaining the same interface, force, and adjustability.
The SAIJ successor incorporates an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life. Because this SKU lacks a -S suffix, it has no magnet and cannot accept a magnetic switch. At 0.5MPa the safe working load is roughly 1508N (60% of push), translating to a 128kg vertical lift with a 2:1 margin. Remember the stop screw sets end position only; it is not a load lock, and a plain cylinder drifts on air loss. For held loads, use an external rod lock or the SAIL/BSAI variants.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-50H Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-50H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X150-50H |
| Bore size | Ø80 mm |
| Stroke | 150 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 SAIJ80X150-50H 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 SAIJ80X150-50H 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 SIJ80X150-50H
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×150 | 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 SIJ80X150-50H Is Used
High-Temp Press Tending
Positioning parts in a heated press where the Viton -H seal survives 0-150C, while the 50mm adjust window tunes the extend stroke to accommodate varying die thicknesses.
Variable-Length Diverter
Actuating a sorting arm where the extend stroke must be precisely shortened on-site by up to 50mm to redirect different package sizes without changing the cylinder.
Adjustable Stop Gate
Controlling a pallet stop gate where the 80mm bore provides 2513N push at 0.5MPa, and the external screw allows rapid reconfiguration of the end position for varying pallet depths.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X150-50H with the SAIJ80X150-50H
To replace the discontinued SIJ80X150-50H, order the drop-in SAIJ80X150-50H, which preserves the G3/8 port, 25mm rod, 36mm cushion, and ISO 15552 mounting dimensions. When sizing both ways, the neighbouring 63mm bore yields 1559N push at 0.5MPa, while the 100mm bore yields 3927N; this 80mm bore provides 2513N at 0.5MPa or 3518N at 0.7MPa. Choose the 50mm adjust window if your application requires field tuning the extend stroke down to 100mm. FA, LB, and TC mountings reuse existing ISO 15552 interface dimensions. This non-magnetic SKU cannot take a sensor; for legacy sensing use CS1-B/DS1-B on -S models. For strokes >=300mm, verify side-load tolerance to prevent guide wear. The stop screw is not a lock; for load holding on air loss, specify a pilot-operated check valve or SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X150-50H
- ✓ 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 SIJ80X150-50H FAQ
Yes, the SIJ80X150-50H is discontinued. The exact drop-in replacement is the SAIJ80X150-50H, which matches the 80mm bore, 150mm stroke, 50mm adjust window, G3/8 port, and ISO 15552 mounting interface. The SAIJ family also features an upgraded piston seal for longer life.
This double-acting single-rod cylinder delivers 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, 4523N push at 0.9MPa, and a theoretical max of 513kgf at 1.0MPa. The nominal 150mm extend stroke can be shortened on-site by up to 50mm via the external stop screw (usable range 100-150mm). The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
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