Airtac SAUJ40 Adjustable Stroke Cylinder SAUJ40X180-75
The AirTAC Airtac SAUJ40 Adjustable Stroke Cylinder SAUJ40X180-75 is a genuine double-acting profile-type standard air cylinder with a Ø40mm bore and 180mm stroke, 1/4" air ports and adjustable end cushioning. Its hard-anodized aluminum-profile barrel is shorter than an ISO 15552 cylinder of the same bore, and it shares SC-series mounting accessories.
- BoreØ40 mm
- Stroke180 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 21 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 SAUJ40 Adjustable Stroke Cylinder SAUJ40X180-75
The AirTAC SAUJ40X180-75 is a double-acting, single-rod profile cylinder with an on-site extend stroke adjustment window of 75 mm. You can trim the 180 mm nominal stroke down to a 105 mm working length using the external stop screw. It features a 40 mm bore, a 1/4" port, and a 16 mm rod with an M12x1.25 thread. The extruded aluminum profile barrel makes it shorter than an ISO 15552 cylinder of the same bore.
Force output matches the standard single-rod SAU series, yielding 628 N push and 528 N pull at 0.5 MPa, up to 1130 N at 0.9 MPa. A practical computed insight for sizing is a safe working load around 377 N, or a vertical lift capacity of roughly 32 kg with a 2:1 safety margin. This unit lacks a magnet, so it cannot accept CMSG or DMSG sensors. For high-heat environments beyond the standard -20 to +70 C range, Viton H seals extend operation to 150 C.
Airtac SAUJ40 Adjustable Stroke Cylinder SAUJ40X180-75 Technical Specifications
| Model | Airtac SAUJ40 Adjustable Stroke Cylinder SAUJ40X180-75 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø40 mm |
| Stroke | 180 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| 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, 21 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAU series datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G (BSPP). A high-temperature seal (0-150 °C) is available.
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 SAUJ40 Adjustable Stroke Cylinder SAUJ40X180-75
| SAU | Profile-type standard cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×180 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAU-family variants: SAUD (double rod), SAUJ (adjustable stroke), SAUF (with built-in solenoid valve), and SAU-S with built-in magnet. Seals: TPU (blank) / Viton H / NBR N. Sensor switches: CMSG / DMSG / EMSG.
Where the Airtac SAUJ40 Adjustable Stroke Cylinder SAUJ40X180-75 Is Used
Adjustable Stop Pressing
Allows operators to dial in the exact 105 to 180 mm extend position for pressing bearings where material thickness varies slightly per batch.
Variable Length Diverting
Fine-tunes the extend stroke on a sorting gate to accommodate different package sizes on the fly without swapping out the entire actuator.
Custom Carton Forming
Provides adjustable end-stop positioning for folding flaps on varying carton depths, ensuring precise mechanical contact every cycle.
Is the Airtac SAUJ40 Adjustable Stroke Cylinder SAUJ40X180-75 the Right Cylinder?
When sizing this 40 mm bore unit against neighbors, the 32 mm bore offers 402 N push at 0.5 MPa, while the 50 mm bore provides 982 N. This SAUJ40X180-75 is ideal when you need the 628 N force class but require field-tuning of the extend end without buying multiple fixed-stroke SAU cylinders. The 75 mm adjustment window lets you fine-tune positioning on the machine. Mounting options include Basic, FA flange, and LB foot styles, compatible with the AirTAC SC series. Because this specific SKU lacks the -S magnet suffix, it cannot support magnetic sensing. For this 180 mm stroke, ensure external guidance to prevent excessive side-loading on the rod.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/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 — same as SC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAUJ40 Adjustable Stroke Cylinder SAUJ40X180-75 FAQ
This 40 mm bore cylinder has a 1/4" port and delivers 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, and 1130 N at 0.9 MPa. The theoretical max is 128 kgf at 1.0 MPa. The external stop screw provides a 75 mm adjustment window, allowing you to shorten the 180 mm maximum extend stroke down to 105 mm on-site.
No. This SKU lacks the -S magnet option, meaning it cannot accept CMSG, DMSG, or EMSG sensors. Additionally, the stop screw only sets the end position; it is not a load lock. On air loss, the cushion only decelerates the piston near the stroke end. You must use an external rod lock or pilot-operated check valve to hold a load securely.
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 SAUJ40 Adjustable Stroke Cylinder SAUJ40X180-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.