This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X700-20S, 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 SIJ63 Double Rod Adjustable Cylinder SIJ63X700-20S
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X700-20S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 700mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X700-20S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke700 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X700-20S
- 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 SIJ63 Double Rod Adjustable Cylinder SIJ63X700-20S
The AirTAC SIJ63X700-20S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued and superseded by the direct replacement SAIJ63X700-20S. It features a 63mm bore, G3/8 port, and a 700mm nominal stroke that you can trim by up to 20mm on-site via an external stop screw, yielding a usable extend range of 680-700mm. The stop sets the end position but is not a load lock; for held loads use an external rod lock or SAIL/BSAI variant.
The SAIJ replacement retains the exact interface, force, and mounting options, while adding an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. This -S model includes a piston magnet for legacy CS1-B/DS1-B switches. With a 700mm stroke, external guides are recommended to prevent rod bending under side loads.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X700-20S Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X700-20S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X700-20S |
| Bore size | Ø63 mm |
| Stroke | 700 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ63X700-20S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAIJ63X700-20S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X700-20S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | 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 SIJ63 Double Rod Adjustable Cylinder SIJ63X700-20S Is Used
Press Fit Tuning
Allows operators to dial in the exact 680-700mm extend position for inserting bearings without machining hard stops.
Transfer Diverter
Adjusts the extend endpoint on-site to accommodate varying package sizes on a sorting line.
Pallet Stopper
Fine-tunes the stopping distance for different pallet depths prior to stretch wrapping.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X700-20S with the SAIJ63X700-20S
To replace the discontinued SIJ63X700-20S, order the direct replacement SAIJ63X700-20S, which preserves the 63mm bore, 20mm adjust window, G3/8 port, and ISO 15552 mounting. Choose the 20mm adjust window if you need fine 680-700mm extend tuning. Reuse existing FA, LB, or TC mounts. The -S suffix ensures a piston magnet is present for switch sensing. Because the stroke is 700mm, ensure external guides support the rod to mitigate bending and side-load stress.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X700-20S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X700-20S FAQ
Yes, the SIJ63X700-20S is discontinued. The direct replacement is the SAIJ63X700-20S, offering the same ISO 15552 interface, 63mm bore, 700mm stroke, 20mm adjust window, G3/8 port, and mounting options.
The external stop screw provides a 20mm on-site adjust window, allowing the extend stroke to be shortened from the 700mm maximum down to 680mm.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X700-20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X700-20S replacement — usually within 7-8 hours.