This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X700-30S, 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 SIJ63X700-30S
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X700-30S 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 SAIJ63X700-30S, 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 → SAIJ63X700-30S
- 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 SIJ63X700-30S
The AirTAC SIJ63X700-30S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 63 mm bore and 700 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 670-700 mm window. The stop sets the end position but is not a load lock. The -S suffix means a piston magnet is present for legacy CS1-B/DS1-B switches.
This SIJ model is discontinued; the direct replacement is the SAIJ63X700-30S, retaining the same ISO 15552 mounting interface, force, and adjust window. The SAIJ upgrade uses a two Y-shaped one-way piston seal for lower start-up pressure and longer life. Note that plain cylinders drift on air loss; use an external rod lock or SAIL/BSAI variant for load holding. At 700 mm, mind rod bending and use external guides.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X700-30S Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X700-30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X700-30S |
| 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 SAIJ63X700-30S 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 SAIJ63X700-30S 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 SIJ63X700-30S
| 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 SIJ63X700-30S Is Used
Variable Depth Boring
Machine tools needing field stroke tuning to hit exact depths without swapping cylinders, using the 30 mm adjust window to fine-tune the 700 mm extend.
Adjustable Transfer Pushers
Sorting lines that handle changing package sizes can trim the extend stroke by up to 30 mm on-site to accommodate varying box lengths.
Custom Positioning Stops
Warehousing actuators requiring precise end-position adjustment where the external stop screw sets the exact 670-700 mm extend endpoint.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X700-30S with the SAIJ63X700-30S
To replace the discontinued SIJ63X700-30S, order the direct replacement SAIJ63X700-30S, keeping the 700 mm maximum stroke and 30 mm adjust window. Choose FA, LB, or TC mountings to reuse your existing ISO 15552 interface. The -S suffix provides a magnet for legacy CS1-B/DS1-B switches (SAIJ uses current switches). Because the 700 mm stroke exceeds 300 mm, account for side-load and rod-bending by adding external guides. The external stop screw trims the extend stroke by up to 30 mm on-site but does not lock the load.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X700-30S
- ✓ 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 SIJ63X700-30S FAQ
Yes, the SIJ63X700-30S is discontinued. The direct replacement is the SAIJ63X700-30S. It shares the same ISO 15552 interface, 63 mm bore, 700 mm stroke, 30 mm adjust window, and G3/8 port. The SAIJ upgrade features a two Y-shaped one-way piston seal for longer life.
The external stop screw window is 30 mm, allowing the 700 mm extend stroke to be shortened to 670 mm on-site. The stop sets end position but is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X700-30S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X700-30S replacement — usually within 7-8 hours.