This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ50X700-10, 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 SIJ50 Double Rod Adjustable Cylinder SIJ50X700-10
The AirTAC SIJ50 Double Rod Adjustable Cylinder SIJ50X700-10 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø50mm bore and 700mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ50X700-10, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke700 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ50X700-10
- 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 SIJ50 Double Rod Adjustable Cylinder SIJ50X700-10
The AirTAC SIJ50X700-10 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder. It features a 50mm bore, G1/4 port, and a 700mm nominal extend stroke that an external stop screw can trim by up to 10mm on-site, yielding a 690-700mm usable stroke. This stop sets the end position but is not a load lock.
This SIJ model is discontinued; the direct replacement is the SAIJ50X700-10, retaining the same interface, force, and port. The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. Note: this non-S SKU lacks a magnet and cannot take a switch.
Airtac SIJ50 Double Rod Adjustable Cylinder SIJ50X700-10 Technical Specifications
| Model | Airtac SIJ50 Double Rod Adjustable Cylinder SIJ50X700-10 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ50X700-10 |
| Bore size | Ø50 mm |
| Stroke | 700 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ50X700-10 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAIJ50X700-10 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ50 Double Rod Adjustable Cylinder SIJ50X700-10
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×700 | 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 SIJ50 Double Rod Adjustable Cylinder SIJ50X700-10 Is Used
Press Fit Tuning
Allows on-site 10mm extend stroke adjustment to dial in exact press-fit depth for 50mm bore assembly operations without machining spacers.
Transfer Stopper Calibration
Trimming the 700mm stroke by up to 10mm lets operators fine-tune the end position of a diverter gate to match varying product sizes.
Carton Sealing Alignment
Provides adjustable end-of-stroke positioning for a sealing head, compensating for minor mechanical drift over a long 700mm extend cycle.
Replacing the Airtac SIJ50 Double Rod Adjustable Cylinder SIJ50X700-10 with the SAIJ50X700-10
To replace the discontinued SIJ50X700-10, use the SAIJ50X700-10 direct, reusing your FA, LB, or TC mounts. The 10mm adjust window is ideal for fine-tuning the 700mm extend. Because this is a non-S model, it cannot accept magnetic switches. For the 700mm stroke, use external guides to prevent rod bending and side-load wear. The stop screw only sets end position; it does not hold loads on air loss—use an external rod lock or SAIL/BSAI variant for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ50X700-10
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ50 Double Rod Adjustable Cylinder SIJ50X700-10 FAQ
Yes, the SIJ50X700-10 is discontinued. The direct replacement is the SAIJ50X700-10. It shares the same ISO 15552 interface, 50mm bore, 700mm stroke, 10mm adjust window, G1/4 port, and mounting options. The SAIJ family also features an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
The external stop screw offers a 10mm adjust window, making the usable extend stroke 690-700mm. The cylinder uses a G1/4 port, has 30mm adjustable cushions, and operates at 30-800mm/s. The stop sets position but is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ50X700-10
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ50X700-10 replacement — usually within 7-8 hours.