This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ200X75-50S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ200X75-50S 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 SIJ200X75-50S
The AirTAC Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X75-50S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 75mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ200X75-50S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke75 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAIJ200X75-50S
About the Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X75-50S
The AirTAC SIJ200X75-50S is a discontinued double-acting single-rod adjustable-stroke ISO 15552 cylinder. An external stop screw trims the extend stroke by up to 50 mm on-site, yielding a usable 25-75 mm extension from the 75 mm nominal maximum. The 200 mm bore delivers 15708 N push and 15080 N pull at 0.5 MPa, scaling to 28274 N push at 0.9 MPa. It features a 40 mm rod, M36x2 thread, 50 mm adjustable cushions, G3/4 port, and a built-in magnet (-S) for legacy CS1-B/DS1-B sensors. The exact drop-in replacement is the SAIJ200X75-50S, retaining the same interface, force, and adjust window.
The SAIJ upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. For sizing, the safe working load is roughly 9425 N (60% of the 0.5 MPa push), equating to an 801 kg vertical lift with a 2:1 margin. The external stop sets end position but is not a lock; the cylinder drifts on air loss, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X75-50S Technical Specifications
| Model | Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X75-50S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ200X75-50S |
| Bore size | Ø200 mm |
| Stroke | 75 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 SAIJ200X75-50S 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 SAIJ200X75-50S 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 SIJ200X75-50S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×75 | 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 SIJ200X75-50S Is Used
Heavy Press Tonnage
Provides 28274 N of push force at 0.9 MPa for heavy forming operations, with the 50 mm stop screw allowing exact bottom-dead-center tuning on the production floor.
Variable Height Stops
Handles 801 kg vertical loads with a 2:1 safety margin, using the adjustable extend window to set precise descending endpoints without swapping mechanical spacers.
Large Mold Clamping
Secures substantial tooling with a 40 mm rod and M36x2 thread, dialing in the 25-75 mm clamp extension to accommodate varying mold base thicknesses on-site.
Replacing the Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X75-50S with the SAIJ200X75-50S
To replace the discontinued SIJ200X75-50S, order the drop-in SAIJ200X75-50S, which preserves the ISO 15552 mounting dimensions, G3/4 port, 50 mm adjust window, and 15708 N @0.5 MPa push force. When sizing both ways, the neighboring 160 mm bore yields 10053 N push @0.5 MPa, while the 200 mm bore offers 21991 N @0.7 MPa. Choose the 50 mm adjust window when your extend stroke needs on-site tuning between 25 and 75 mm. Mounting options include Basic, FA, LB, and TC. The -S suffix ensures a piston magnet for legacy CS1-B/DS1-B switches (the SAIJ uses current switches). For stroke lengths over 300 mm, carefully manage side loading to prevent excessive guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ200X75-50S
- ✓ 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 SIJ200X75-50S FAQ
Yes, the SIJ200X75-50S is discontinued. The exact drop-in replacement is the SAIJ200X75-50S, which maintains the same ISO 15552 interface, 200 mm bore, 75 mm stroke, 50 mm adjust window, G3/4 port, and 15708 N push force. The SAIJ upgrades the piston seal to a two Y-shaped one-way element for longer life.
The 200 mm bore provides 15708 N push and 15080 N pull @0.5 MPa, 21991 N push @0.7 MPa, and 28274 N push @0.9 MPa, with a theoretical max of 3204 kgf @1.0 MPa. The 50 mm external stop screw window allows you to trim the extend stroke by up to 50 mm on-site, giving a usable extension range of 25-75 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
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