This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the drop-in replacement SAIJ200X900-50, with the same bore, stroke, output force, port and mounting, so it fits the same application. 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 SIJ200X900-50
The AirTAC Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X900-50 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 900mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ200X900-50, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke900 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAIJ200X900-50
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X900-50
The AirTAC SIJ200X900-50 is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 50 mm on-site, giving a usable forward travel of 850-900 mm. This 200 mm bore delivers 15708 N push and 15080 N pull at 0.5 MPa, peaking at 28274 N push at 0.9 MPa. It features a 40 mm rod, M36x2 thread, 50 mm adjustable cushions, and a G3/4 port.
The exact drop-in replacement is the SAIJ200X900-50, matching the ISO 15552 mounting interface, bore, force, and adjust window. The SAIJ upgrade introduces a two-piece Y-shaped piston seal for lower start-up pressure and longer life. For sizing, a 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. Note this non-magnetic SKU lacks sensing, and the stop screw sets end position but is not a load lock.
Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X900-50 Technical Specifications
| Model | Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X900-50 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ200X900-50 |
| Bore size | Ø200 mm |
| Stroke | 900 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 SAIJ200X900-50 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 SAIJ200X900-50 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 SIJ200X900-50
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×900 | 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 SIJ200X900-50 Is Used
Heavy Press Tonnage
Delivers 28274 N push at 0.9 MPa for heavy forming operations, with the 50 mm stop screw allowing precise on-site tuning of the final press depth without changing the cylinder body.
Large Mold Handling
Moves substantial tooling over a 900 mm travel where the exact seating position varies by mold batch, using the external stop to trim the extend stroke perfectly.
Bulk Material Compaction
Ideal for compacting dense materials in large hoppers, where the 50 mm adjustable window compensates for varying fill volumes to achieve consistent final material density.
Replacing the Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X900-50 with the SAIJ200X900-50
To replace the discontinued SIJ200X900-50, order the drop-in SAIJ200X900-50, which retains the ISO 15552 interface, G3/4 port, and 50 mm adjust window (850-900 mm usable extend). If sizing down, the 160 mm bore yields 10053 N push at 0.5 MPa; if sizing up, there is no larger standard ISO bore, so dual 160 mm cylinders may be required. Reuse FA, LB, or TC mounts directly. Because this SKU lacks the -S magnet, it cannot accept a magnetic switch; add external sensors if needed. At a 900 mm stroke, the 40 mm rod is vulnerable to bending—always use external guides to manage side loads. The stop screw only sets the end position; for load holding on air loss, use an external rod lock or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ200X900-50
- ✓ 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 SIJ200X900-50 FAQ
Yes, the SIJ200X900-50 is discontinued. The exact drop-in replacement is the SAIJ200X900-50. It matches the ISO 15552 interface, 200 mm bore, 900 mm stroke, 50 mm adjust window, G3/4 port, and mounting footprints, while adding an upgraded two-piece Y-shaped piston seal.
This 200 mm bore cylinder has a 50 mm adjust window (usable extend stroke 850-900 mm). Force ratings are: 15708 N push / 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, 28274 N push at 0.9 MPa, and a theoretical max of 3204 kgf at 1.0 MPa. It uses a G3/4 port and 50 mm adjustable cushions.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ200X900-50
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ200X900-50 replacement — usually within 7-8 hours.