This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X700-20, 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 SIJ63X700-20
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X700-20 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 SAIJ63X700-20, 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 → SAIJ63X700-20
- 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 SIJ63X700-20
The AirTAC SIJ63X700-20 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 63mm bore and 700mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 20mm on-site, giving a usable extend range of 680-700mm. The stop sets the end position but is not a load lock. This SKU has no magnet (-S omitted) and cannot take a switch. The bore fixes the port to G3/8, with a 20mm rod and M16x1.5 thread.
This SIJ model is discontinued; the direct replacement is the SAIJ63X700-20, matching the ISO 15552 interface, force, cushion, and mounting. The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. Air cushions are 30mm; speed is 30-800mm/s.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X700-20 Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X700-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X700-20 |
| 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 SAIJ63X700-20 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 SAIJ63X700-20 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 SIJ63X700-20
| 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 SIJ63X700-20 Is Used
Press Fit Depth Tuning
Trim the extend stroke by up to 20mm on-site to set precise press-fit depths without machining custom spacers.
Transfer Stop Positioning
Adjust the external stop screw to dial in the exact 680-700mm end position for varying pallet widths on a transfer line.
Pallet Discharge Control
Fine-tune the extend end position on-site to accommodate different pallet discharge heights while reusing ISO 15552 mounts.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X700-20 with the SAIJ63X700-20
To replace SIJ63X700-20, order SAIJ63X700-20; it is a direct match for the G3/8 port, 30mm cushions, and FA/LB/TC mountings. Choose the 20mm adjust window if you need 680-700mm end-position tuning. This non-magnetic SKU cannot take a sensor; for sensing use an external switch bracket. For the 700mm long stroke, support the rod against side-load bending and use external guides. The stop screw is not a lock; for held loads use an external rod lock, pilot-operated check valve, or SAIL/BSAI variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X700-20
- ✓ 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 SIJ63X700-20 FAQ
Yes, the SIJ63X700-20 is discontinued. The direct replacement is the SAIJ63X700-20, matching the ISO 15552 interface, 63mm bore, 700mm stroke, 20mm adjust window, G3/8 port, and mounting. The SAIJ adds an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
The external stop screw trims the extend stroke by up to 20mm on-site, giving a usable range of 680-700mm. The stop sets end position but is not a load lock; use an external rod lock or SAIL/BSAI for held loads.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X700-20
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X700-20 replacement — usually within 7-8 hours.