Airtac SAID50 Double Rod Cylinder SAID50AX275
The AirTAC Airtac SAID50 Double Rod Cylinder SAID50AX275 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 275mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ50 mm
- Stroke275 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
- 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 SAID50 Double Rod Cylinder SAID50AX275
The AirTAC SAID50X275 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 50mm bore and 275mm stroke. Because a rod exits both end covers, the annulus area is identical on extension and retraction, yielding an equal bidirectional force of 825N at 0.5 MPa. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
This unit uses a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance. The rear rod end can drive a secondary mechanism or mount a position flag, while the twin-rod design inherently resists torsional rotation. Ports are PT tapered thread type, and adjustable air cushions at both ends absorb end-of-stroke impact.
Airtac SAID50 Double Rod Cylinder SAID50AX275 Technical Specifications
| Model | Airtac SAID50 Double Rod Cylinder SAID50AX275 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 275 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 stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / 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 | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAID50 Double Rod Cylinder SAID50AX275
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×275 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAID50 Double Rod Cylinder SAID50AX275 Is Used
Symmetric-Force Transfer
Drives a shuttle mechanism where the equal 825N extension and retraction forces ensure consistent momentum and precise positioning without pressure spikes.
Anti-Rotation Slides
The twin-rod architecture prevents the load from twisting during transit, guiding heavy tooling smoothly along the 275mm travel path.
Rear-Rod Cam Actuation
The protruding rear rod operates a secondary mechanical cam or limit flag independently of the primary workpiece mounted on the front rod end.
Is the Airtac SAID50 Double Rod Cylinder SAID50AX275 the Right Cylinder?
Choose this 50mm bore when an application demands equal push and pull forces alongside high torsional rigidity. If your mechanism requires less force, the 40mm neighbor provides 528N both ways at 0.5 MPa. If you need more power, the 63mm bore offers 1402N each direction. A single-rod SAI might suffice for basic push tasks, but the SAID is necessary when dual-side guidance or rear-rod cam actuation is required.
This model lacks a piston magnet, so position sensing requires external limit switches. Note that a plain SAID does not hold its load if air pressure drops; for fail-safe holding, consider a SAIL or BSAID variant. Since the stroke is 275mm, the long unsupported rod can generate side-load bending moments—use an external guide to prevent rod-bearing wear. It is dimensionally interchangeable per ISO 15552 and uses the SAID mounting set: Basic, FA, LB, TC, FTC, TCM1, TCM2.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAID50 Double Rod Cylinder SAID50AX275 FAQ
Because it is a double-rod cylinder, the effective area is the same on both sides of the piston. It provides an equal extend and retract force of 825N at 0.5 MPa, 1154N at 0.7 MPa, and 1484N at 0.9 MPa.
Yes, the SAID50X275 is dimensionally interchangeable with other ISO 15552 profile cylinders. It uses a PT G1/4 port and supports the SAID mounting accessory set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting single-rod only mounts like FB or CA.
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