This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID160X350, 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 SID160X350
The AirTAC Airtac SID Series Double-Rod Cylinder SID160X350 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 350mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID160X350, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke350 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAID160X350
- 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 SID160X350
The AirTAC SID160X350 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston, ensuring push and pull force are equal at 9425 N @0.5 MPa, 13194 N @0.7 MPa, and 16964 N @0.9 MPa. This SKU is discontinued and replaced by the direct replacement SAID160X350, retaining the exact 160mm bore, 350mm stroke, G3/4 port, and mounting interface. The SAI upgrade uses a two Y-shaped one-way piston seal for lower start-up pressure and longer life.
Because both faces use the rod-side area, the back rod can drive a second tool or carry a sensor cam without force loss. With no -S magnet, this SKU cannot take a magnetic switch. A plain cylinder drifts on air loss; the 50mm adjustable cushion only decelerates near stroke end, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SID Series Double-Rod Cylinder SID160X350 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID160X350 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID160X350 |
| Bore size | Ø160 mm |
| Stroke | 350 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID160X350 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
The SAID160X350 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 SID160X350
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×350 | 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 SID160X350 Is Used
Twin-Tool Machining Station
Uses the dual extending rods to drive two identical cutting tools simultaneously, ensuring perfectly synchronized machining cycles with equal push and pull force.
Equal-Force Transfer Pusher
Mounts a pusher head on the front rod and a sensor cam on the back rod, delivering 9425 N @0.5 MPa of consistent force both ways without requiring a larger single-rod push cylinder.
Replacing the Airtac SID Series Double-Rod Cylinder SID160X350 with the SAID160X350
To replace the discontinued SID160X350, swap it directly for the SAID160X350, reusing the genuine ISO 15552 mounting interface (Basic, FA, LB, TC) without bracket changes. Size both ways by checking neighbor bores: if 13194 N @0.7 MPa is excessive, step down to bore 125; if more force is needed, step up to bore 200. A double rod is right when you need equal both-ways force, anti-rotation stability, or a rear rod to carry a sensor cam. This SKU lacks a -S magnet, so it cannot accept legacy CS1-B/DS1-B sensors. For the 350mm stroke, add external guides to prevent rod bending and manage side loads. Operating speed is 30-500 mm/s.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID160X350
- ✓ 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 SID160X350 FAQ
Yes, the SID160X350 is discontinued. The direct replacement is the SAID160X350, which keeps the same ISO 15552 interface, 160mm bore, 350mm stroke, G3/4 port, and equal both-ways force. The SAI family also adds SAIL and BSAI lock variants the SI line lacked.
Force is equal both ways at 9425 N @0.5 MPa, 13194 N @0.7 MPa, and 16964 N @0.9 MPa. The air port is G3/4, the rod thread is M36x2, and speed is 30-500 mm/s. It features a 50mm adjustable cushion at each end.
Related AirTAC SAI Cylinders
Request a Quote for the SAID160X350
Send us the quantity and destination. We confirm price, stock and lead time on the SAID160X350 replacement — usually within 7-8 hours.