This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ200X80-50S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ200X80-50S 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 SIJ200 Double Rod Adjustable Cylinder SIJ200X80-50S
The AirTAC Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X80-50S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 80mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ200X80-50S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke80 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAIJ200X80-50S
About the Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X80-50S
The AirTAC SIJ200X80-50S is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 200mm bore and 80mm maximum extend stroke. An external stop screw lets you trim the extend stroke by up to 50mm on-site, yielding a usable 30-80mm stroke window. It delivers 15708N push and 15080N pull at 0.5 MPa, features a G3/4 port, and includes a 50mm adjustable air cushion at each end. The exact drop-in replacement is the SAIJ200X80-50S, matching the ISO 15552 mounting interface, force, and porting.
The SAIJ successor retains the core mechanics but incorporates an upgraded piston seal utilizing two Y-shaped one-way elements for lower start-up pressure and extended life. For sizing, the safe working load is approximately 9425N (60% of the 0.5MPa push force), translating to a vertical lift capacity of about 801kg with a 2:1 margin. The -S suffix denotes a built-in piston magnet for legacy CS1-B/DS1-B switches. Remember the stop screw sets end position only; it is not a load lock.
Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X80-50S Technical Specifications
| Model | Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X80-50S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ200X80-50S |
| Bore size | Ø200 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ200X80-50S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAIJ200X80-50S 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 SIJ200 Double Rod Adjustable Cylinder SIJ200X80-50S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×80 | 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 SIJ200 Double Rod Adjustable Cylinder SIJ200X80-50S Is Used
Heavy Press Tonnage Calibration
Requires exacting end-position tuning on a 200mm bore actuator delivering 15708N push at 0.5MPa, using the 50mm adjust screw to dial in the final 30-80mm contact stroke.
Variable Height Pallet Positioning
Demands on-site stroke trimming to accommodate fluctuating pallet load heights without changing the ISO 15552 mounting interface, safely lifting up to 801kg vertically.
Large Mold Clamping Stations
Needs field stroke adjustment to compensate for varying mold dimensions, relying on the 50mm adjust window to set the precise clamping endpoint securely.
Replacing the Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X80-50S with the SAIJ200X80-50S
To replace the discontinued SIJ200X80-50S, order the drop-in SAIJ200X80-50S, preserving the 200mm bore, 80mm nominal stroke, 50mm adjust window, and G3/4 port. When sizing both ways, the neighboring 160mm bore yields 10053N push at 0.5MPa, while the 200mm bore provides 15708N push. Select the 50mm adjust window if your application requires field tuning the extend stroke down to a 30mm minimum; otherwise, a fixed SAI cylinder is simpler. Mounting options include FA, LB, and TC brackets. The -S suffix ensures piston magnet compatibility for position sensing. For strokes at or above 300mm, verify side-load limits to prevent excessive guide wear. The external stop screw sets the end position but does not lock the load; for load holding on air loss, use an external rod lock or pilot-operated check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ200X80-50S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X80-50S FAQ
Yes, the AirTAC SIJ200X80-50S is discontinued. The exact drop-in replacement is the SAIJ200X80-50S. It shares the identical ISO 15552 interface, 200mm bore, 80mm stroke, 50mm adjust window, and G3/4 port, ensuring a seamless swap.
The double-acting single-rod SIJ200X80-50S delivers 15708N push and 15080N pull at 0.5MPa, 21991N push at 0.7MPa, and 28274N push at 0.9MPa, with a theoretical max of 3204kgf at 1.0MPa. The external stop screw provides a 50mm adjust window, allowing the 80mm nominal extend stroke to be shortened to a 30mm minimum on-site.
Related AirTAC SAI Cylinders
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