Airtac SAID40 Double Rod Cylinder SAID40X175
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X175 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 175mm 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.
- BoreØ40 mm
- Stroke175 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- 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 SAID40 Double Rod Cylinder SAID40X175
The AirTAC SAID40X175 is a double-acting, double-rod ISO 15552 profile cylinder featuring a 16mm carbon steel rod exiting both end covers. Because the twin rods occupy piston area symmetrically, the annulus effective area is identical on extend and retract. This yields an equal push and pull force of 528 N at 0.5 MPa (739 N at 0.7 MPa), ensuring highly balanced motion without the differential speeds seen in single-rod units.
A defining advantage of the through-rod layout is the ability to mount the primary workpiece on the front end while utilizing the rear rod extension for external guidance, a cam mechanism, or a position flag. The extruded aluminum barrel integrates sensor grooves on both sides for flexible mounting of AirTAC CMSE or DMSE switches, though this specific configuration ships without a magnet.
Airtac SAID40 Double Rod Cylinder SAID40X175 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40X175 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 175 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAID40 Double Rod Cylinder SAID40X175
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×175 | 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 SAID40 Double Rod Cylinder SAID40X175 Is Used
Symmetric Force Transfer
Delivers identical 528 N push and pull forces to move loads back and forth without requiring pressure adjustments for differential areas.
Anti-Rotation Slides
The twin through-rods keep the piston assembly guided against twisting, making it ideal for lifting and straightening mechanisms that resist deflection.
Rear-Rod Sensing
The rear rod extension can drive an external cam or position flag, allowing secondary mechanism timing without interfering with the primary front work area.
Is the Airtac SAID40 Double Rod Cylinder SAID40X175 the Right Cylinder?
Choose this 40mm bore when an application demands equal 528 N force and matching flow speeds in both travel directions, which is critical for synchronizing twin-station processes or preventing rotational drift. If your mechanism requires less force, the neighboring 32mm bore provides 345 N both ways; stepping up to the 50mm bore yields 825 N. Since this is a 175mm stroke, the 16mm rod and M12x1.25 thread provide robust resistance to side loads, but an external guide is recommended for heavy offset masses.
This model uses a PT tapered G1/4 port and operates at 30-800 mm/s. It is dimensionally interchangeable per ISO 15552, offering a drop-in replacement for other standard profile double-rod cylinders. Note that the overall length is longer than a single-rod SAI to accommodate the rear protrusion, so factor in extra clearance. The adjustable air cushions at both ends decelerate the piston near stroke end, but they do not lock or hold the load if air pressure is lost—use a SAIL or BSAID variant if position holding is required. Available mountings include Basic, FA, LB, TC, FTC, TCM1, and 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 SAID40 Double Rod Cylinder SAID40X175 FAQ
Because the double-rod design has the same effective annulus area on both sides, it provides an equal extend and retract force of 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa.
Yes, the SAID40X175 is dimensionally interchangeable per ISO 15552 and serves as a drop-in replacement for other standard profile double-rod cylinders, utilizing a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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