Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-100S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 160mm 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
- Stroke160 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-100S
The AirTAC SAIJ40X160-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 160 mm travel back by up to 100 mm. This yields a wide 60-160 mm usable positioning window, letting you fine-tune the retract end-position at commissioning without swapping the barrel or adding external stops. It delivers 628 N of push force at 0.5 MPa and operates at speeds of 30-800 mm/s.
This specific SKU is built with a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for AirTAC CMSE reed and DMSE solid-state sensors. The fluid porting uses PT tapered threads (G1/4), and the extruded aluminum barrel includes sensor grooves on both sides. The rear screw acts purely as a travel stop to set deceleration, not as a lock, so live air is required to hold the load.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-100S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 160 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 SAIJ40 Adjustable Cylinder SAIJ40BX160-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×160 | 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 SAIJ40 Adjustable Cylinder SAIJ40BX160-100S Is Used
Variable End-Position Tuning
Dial in the exact retract distance from 60 to 160 mm during machine setup to accommodate varying material lengths without disassembling the pneumatic circuit.
Product-Size Changeover
Quickly reset the stroke limit on packaging lines when switching between different carton sizes, using the rear stopper to establish a new fixed reference point.
Corrosive Setup Environments
Leverage the SUS304 stainless steel rod in washdown or corrosive manufacturing areas while maintaining precise end-position control over the 100 mm adjustment range.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX160-100S the Right Cylinder?
Choose this 40 mm bore adjustable cylinder when your application requires a highly variable end-stop within a 60 to 160 mm range, making it superior to a fixed-stroke SAI for product-size changeovers. If you need higher thrust, stepping up to the 50 mm bore yields 982 N at 0.5 MPa, while dropping to a 32 mm bore reduces it to 402 N. For this ISO 15552 interchangeable replacement, match the 160 mm stroke, 100 mm adjustment, PT port thread, and the -S magnet option.
Because the nominal stroke is 160 mm, side-load stress on the 16 mm rod is moderate, but you should still ensure proper external guiding for optimal seal life. If your machine requires true load-holding without live air pressure, this cylinder will not suffice; you must look to the SAIL air-released lock, the BSAI clamp-lock, or an external rod lock instead. The SAIJ mounting set omits FB, CA, CB, and CR brackets, offering Basic, FA, LB, TC, FTC, TCM1, and TCM2 options.
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 SAIJ40 Adjustable Cylinder SAIJ40BX160-100S FAQ
At a standard 0.5 MPa operating pressure, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 1130 N of push force.
The rear adjusting screw acts as a mechanical stopper that lets you shorten the effective travel from the 160 mm nominal stroke down to as little as 60 mm. It fine-tunes the retract end-position but does not lock the load without live air pressure.
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