This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ63X75-75H, 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 SIJ63X75-75H
The AirTAC SIJ63 Double Rod Adjustable Cylinder SIJ63X75-75H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 75mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ63X75-75H, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke75 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAIJ63X75-75H
- 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 SIJ63X75-75H
The AirTAC SIJ63X75-75H is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder featuring a high-temperature Viton-H seal (0-150 C). An external stop screw lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 0-75 mm extend window from the 75 mm nominal maximum. The direct replacement is the SAIJ63X75-75H, matching the interface, force, and mounting.
Because this SKU lacks a -S magnet, it cannot accept a magnetic switch. The SAIJ upgrade utilizes a two Y-shaped one-way piston seal for low start-up pressure and long life. The stop screw sets end position but is not a load lock; use SAIL or BSAI for held loads.
Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X75-75H Technical Specifications
| Model | Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X75-75H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ63X75-75H |
| Bore size | Ø63 mm |
| Stroke | 75 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 SAIJ63X75-75H 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 SAIJ63X75-75H 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 SIJ63X75-75H
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×75 | 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 SIJ63X75-75H Is Used
Variable Depth Drilling
Adjusting the extend stop on-site allows precise control of drill penetration depth into high-temperature workpieces without reprogramming the motion controller.
Variable Length Diverter
Tuning the extend stroke lets a diverter arm accommodate changing package sizes on a heat-resistant conveyor line directly at the workstation.
Adjustable Positioning Pusher
Trimming the extend stroke sets the exact push distance for orienting hot-molded parts into secondary processing fixtures without swapping cylinders.
Replacing the Airtac SIJ63 Double Rod Adjustable Cylinder SIJ63X75-75H with the SAIJ63X75-75H
To replace the SIJ63X75-75H, order the direct replacement SAIJ63X75-75H, reusing your FA, LB, or TC ISO 15552 mounts. The 75 mm adjust window covers the full 75 mm nominal stroke, letting you tune the extend end-point precisely. This non-magnetic SKU cannot take a sensor; for sensing, select a -S SAIJ model (legacy CS1-B/DS1-B accuracy). For strokes >=300 mm, verify side-load guide tolerance. Note the Viton-H seal extends operating temperature to 0-150 C.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ63X75-75H
- ✓ 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 SIJ63X75-75H FAQ
Yes, the SIJ63X75-75H is discontinued. The direct replacement is the SAIJ63X75-75H, sharing the same ISO 15552 interface, 63 mm bore, 75 mm stroke, 75 mm adjust window, G3/8 port, and mounting. The SAIJ family also adds an upgraded piston seal and SAIL/BSAI lock variants.
The external stop screw provides a 75 mm adjust window, shortening the extend stroke by up to 75 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ63X75-75H
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ63X75-75H replacement — usually within 7-8 hours.