This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID50X230, 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 SID50X230
The AirTAC Airtac SID Series Double-Rod Cylinder SID50X230 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø50mm bore and 230mm stroke, G1/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID50X230, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke230 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAID50X230
- 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 SID50X230
The AirTAC SID50X230 is a discontinued double-rod ISO 15552 cylinder where a rod exits both ends, ensuring push and pull force are equal at 825 N @0.5 MPa, 1154 N @0.7 MPa, and 1484 N @0.9 MPa. It features a 50mm bore, 230mm stroke, G1/4 air port, M16x1.5 rod thread, and 30mm adjustable cushions. The direct replacement is the SAID50X230, sharing the same mounting interface, bore, stroke, and force.
Because the second rod occupies the rear chamber, both faces use the rod-side area, delivering equal force both ways and preventing rod rotation for guided tooling. The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. This non-magnet SKU cannot take a sensor.
Airtac SID Series Double-Rod Cylinder SID50X230 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID50X230 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID50X230 |
| Bore size | Ø50 mm |
| Stroke | 230 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| 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 1200 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID50X230 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAID50X230 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 SID50X230
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×230 | 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 SID50X230 Is Used
Dual-Tool Workholding
Drives two opposing tools simultaneously from a single piston, utilizing the equal both-ways force to maintain perfectly synchronized clamping and forming pressure.
Anti-Rotation Lifting
The twin-rod geometry prevents rod twist during vertical elevation, ensuring precise guided lifting of 42 kg loads without requiring external linear bearings.
Symmetrical Transfer
Mounts a sensor cam or linkage on the rear rod while the front rod pushes product, keeping the active work area clear of obstructions on the line.
Replacing the Airtac SID Series Double-Rod Cylinder SID50X230 with the SAID50X230
Replace the discontinued SID50X230 directly with the SAID50X230, matching the 50mm bore, 230mm stroke, G1/4 port, and ISO 15552 mounting. Size both ways by verifying equal force (825 N @0.5 MPa) and checking neighbor bores (40mm at 528 N, 63mm at 1402 N). Choose a double-rod cylinder when anti-rotation or dual-tool driving is required. Reuse FA, LB, or TC mounts. This SKU lacks a magnet (-S), so it cannot support switches. For stroke 230mm (under 300mm), side-load risks are minimal.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID50X230
- ✓ 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 SID50X230 FAQ
Yes, the SID50X230 is discontinued. The direct replacement is the SAID50X230, which shares the same ISO 15552 mounting interface, 50mm bore, 230mm stroke, G1/4 port, and equal both-ways force. The SAI family also adds upgraded two Y-shaped one-way piston seals for longer life.
As a double-acting double-rod cylinder, force is equal both ways: 825 N @0.5 MPa, 1154 N @0.7 MPa, and 1484 N @0.9 MPa. The bore is 50mm with a G1/4 air port, M16x1.5 rod thread, and 30mm adjustable cushions. It operates at 0.15-1.0 MPa and 30-800 mm/s. A plain cylinder does not hold loads on air loss; use an external rod lock or SAIL/BSAI variant for held loads.
Related AirTAC SAI Cylinders
Request a Quote for the SAID50X230
Send us the quantity and destination. We confirm price, stock and lead time on the SAID50X230 replacement — usually within 7-8 hours.