This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID63X900S, 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 SID Series Double-Rod Cylinder SID63X900S
The AirTAC Airtac SID Series Double-Rod Cylinder SID63X900S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 900mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID63X900S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke900 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAID63X900S
- 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 SID Series Double-Rod Cylinder SID63X900S
The AirTAC SID63X900S is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends, ensuring push and pull force are equal at 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. This discontinued model features a 63mm bore, 900mm stroke, M16x1.5 rod thread, G3/8 port, and 30mm adjustable cushions. The direct replacement is the SAID63X900S, sharing the same interface, force, and mounting.
The SAID upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. The second rod prevents rotation and can carry a sensor cam or drive a second tool. The -S suffix denotes a piston magnet for legacy CS1-B/DS1-B switches. Note: air cushions only decelerate; use an external rod lock or SAIL/BSAI variant for load holding.
Airtac SID Series Double-Rod Cylinder SID63X900S Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID63X900S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID63X900S |
| Bore size | Ø63 mm |
| Stroke | 900 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 SAID63X900S 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 SAID63X900S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SID Series Double-Rod Cylinder SID63X900S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×900 | 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 SID Series Double-Rod Cylinder SID63X900S Is Used
Transfer Pusher
Equal both ways thrust pushes and retracts parts on a conveyor without force imbalance, using the back rod for a sensor cam.
Dual-Tool Drive
Drives two separate operations simultaneously from one piston, utilizing the second exiting rod to actuate a secondary mechanism.
Balanced Lift
Lifts loads vertically with equal push and pull force, preventing the sagging acceleration common to single-rod pull strokes.
Replacing the Airtac SID Series Double-Rod Cylinder SID63X900S with the SAID63X900S
To replace the discontinued SID63X900S, install the direct replacement SAID63X900S, which preserves the ISO 15552 mounting interface, 900mm stroke, and equal both ways force. Size both directions by checking neighbor bores if you need more or less power, remembering the double-rod design yields identical push/pull thrust. Choose a double-rod cylinder when anti-rotation is required or when the back rod must carry a sensor cam. Reuse FA, LB, or TC mounts directly. The -S magnet supports legacy CS1-B/DS1-B sensors. For this 900mm stroke, add external guides to prevent rod bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID63X900S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SID Series Double-Rod Cylinder SID63X900S FAQ
Yes, the SID63X900S is discontinued. The direct replacement is the SAID63X900S, which matches the ISO 15552 interface, G3/8 port, 900mm stroke, and force. The SAID family adds an upgraded piston seal and lock variants.
Force is equal both ways: 1402 N @0.5 MPa, 1962 N @0.7 MPa, and 2523 N @0.9 MPa. Speed is 30-800 mm/s. It does not hold loads on air loss; use an external rod lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAID63X900S
Send us the quantity and destination. We confirm price, stock and lead time on the SAID63X900S replacement — usually within 7-8 hours.