This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X35, 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 SI200 Standard Cylinder SI200X35
The AirTAC Airtac SI200 Standard Cylinder SI200X35 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 35mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X35, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke35 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X35
- 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 SI200 Standard Cylinder SI200X35
The AirTAC SI200X35 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 35 mm stroke. Delivering 15708 N push force at 0.5 MPa through a G3/4 port, it is replaced by the SAI200X35. This direct upgrade shares the exact ISO 15552 mounting interface, M36x2 rod thread and 50 mm cushions.
The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure. Note this SKU lacks a magnet, so it cannot accept CS1-B/DS1-B sensors. For load holding, use the SAIL lock or BSAI clamp-lock variants.
Airtac SI200 Standard Cylinder SI200X35 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X35 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X35 |
| Bore size | Ø200 mm |
| Stroke | 35 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 SAI200X35 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAI200X35 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI200 Standard Cylinder SI200X35
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×35 | 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 SI200 Standard Cylinder SI200X35 Is Used
Heavy Stamping
Generates 21991 N at 0.7 MPa for forming thick metal plates in automated press lines.
Injection Molding
Rugged 200 mm profile barrel handles massive clamping forces required to hold large industrial molds.
Pallet Lifting
Short 35 mm stroke provides stable vertical elevation of 801 kg loads in heavy-duty logistics stations.
Replacing the Airtac SI200 Standard Cylinder SI200X35 with the SAI200X35
To replace the SI200X35, order the SAI200X35 ensuring your ISO 15552 mounting fixtures, G3/4 port, and M36x2 rod thread match. This non-magnet SKU cannot take sensors. If sizing down, a 160 mm bore yields 10053 N push at 0.5 MPa. If sizing up for higher force, the theoretical max is 3204 kgf at 1.0 MPa. A plain cylinder drifts on air loss; for held loads use the SAIL air-released lock, BSAI clamp-lock, or an external pilot check valve. The SAI family also offers SAIF valve variants (bores 32-100).
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X35
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI200 Standard Cylinder SI200X35 FAQ
Yes, the SI200X35 is discontinued. The direct replacement is the SAI200X35, which maintains the identical ISO 15552 mounting interface, 200 mm bore, 35 mm stroke, output force, G3/4 port, and accessories.
It operates at 30-500 mm/s. Forces are: push 15708 N and pull 15080 N at 0.5 MPa, push 21991 N at 0.7 MPa, push 28274 N at 0.9 MPa, with a theoretical max of 3204 kgf at 1.0 MPa. The G3/4 port and 50 mm cushions handle the massive airflow.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X35
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X35 replacement — usually within 7-8 hours.