Airtac SAI40 Standard Air Cylinder SAI40X155
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X155 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 155mm 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
- Stroke155 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 SAI40 Standard Air Cylinder SAI40X155
The AirTAC SAI40X155 is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and a 155mm stroke. It delivers a push force of 628 N and a pull force of 528 N at 0.5 MPa, making it well-suited for mid-range actuation tasks. The extruded aluminum barrel design omits tie rods, providing a clean exterior that drops directly into standard ISO 15552 mounting footprints.
This specific configuration utilizes a standard carbon steel piston rod and PT tapered port threads. Because it lacks the -S magnet suffix, it is optimized for pure mechanical drive rather than electronic position sensing. For environments exceeding standard operating temperatures, the seal configuration can be upgraded from standard TPU to Viton (H) or NBR (N).
Airtac SAI40 Standard Air Cylinder SAI40X155 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X155 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 155 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 SAI40 Standard Air Cylinder SAI40X155
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×155 | 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 SAI40 Standard Air Cylinder SAI40X155 Is Used
Package Diverting
Provides the 628N push force needed to actuate routing gates on high-speed packaging conveyors.
Clamp Actuation
Extends 155mm to drive movable jaws on machining fixtures, securely positioning parts for milling.
Vertical Lifting
Raises lightweight pallets or product totes using compressed air, benefiting from adjustable end cushions.
Is the Airtac SAI40 Standard Air Cylinder SAI40X155 the Right Cylinder?
Selecting this 40mm bore over the smaller 32mm variant upgrades your thrust from 402 N to 628 N at 0.5 MPa, while stepping up to the 50mm bore yields 982 N. The 155mm stroke offers ample travel for indexing and lifting tasks. Because the stroke is under 300mm, rod-bearing bending is minimal, though side loads should still be minimized through proper mechanical alignment.
This cylinder is a dimensionally interchangeable replacement for any ISO 15552 cylinder with a 40mm bore, 155mm stroke, and G1/4 ports. It supports standard mounting accessories like FA flanges or LB foot brackets. Note that a standard SAI does not hold its load if air pressure is lost; applications requiring dead-end holding must incorporate external check valves or select the SAIL locking variant.
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 SAI40 Standard Air Cylinder SAI40X155 FAQ
At 0.5 MPa, this double-acting cylinder provides a push force of 628 N and a pull force of 528 N. If you increase the operating pressure to 0.7 MPa, the push force rises to 879 N.
Yes. The SAI40X155 is a true ISO 15552 profile cylinder, making its mounting interface and center distances dimensionally interchangeable with other ISO 15552 cylinders of the same bore and stroke.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAI40 Standard Air Cylinder SAI40X155
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.