Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-75S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 450mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ160 mm
- Stroke450 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-75S
The AirTAC SAIJ160X450-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that allows you to fine-tune the effective travel down from a 450 mm nominal stroke to a 375 mm minimum. This built-in mechanical stopper enables precise end-position calibration during commissioning or product changeovers without swapping out the unit. Equipped with a SUS304 stainless steel rod (option B) and PT tapered ports, it delivers a robust 14074 N push force at 0.7 MPa while operating at a controlled speed range of 30-500 mm/s.
Because this is a profile cylinder rather than a tie-rod design, the extruded aluminum barrel integrates sensor grooves on both sides for direct mounting of CMSE reed and DMSE electronic solid-state switches. The generous 40 mm cushion stroke at both ends helps absorb kinetic energy, but remember the adjuster and cushions only set the travel end and decelerate the load; neither will hold the position without live air. For load-holding requirements, consider the SAIL pneumatic lock or BSAI clamp-lock series.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-75S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 450 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max stroke | Up to 1500 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 (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×450 | 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 SAIJ160 Adjustable Cylinder SAIJ160BX450-75S Is Used
Product Size Changeovers
Dial back the stroke by up to 75 mm to accommodate varying package lengths on a packaging line without physically repositioning the cylinder mount.
Commissioning Fine-Tune
Use the rear stopper to micro-adjust the end-of-travel position during machine setup, ensuring precise mechanical alignment without adding external stops.
Variable End-Stop Machining
Adjust the travel window between 375 and 450 mm to position workpieces accurately at different machining stations while maintaining 14074 N of clamping force.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-75S the Right Cylinder?
Choose this 160 mm bore when a 125 mm bore (providing 8590 N push at 0.7 MPa) lacks sufficient thrust, but a 200 mm bore (21991 N push) is oversized. The adjustable 375-450 mm travel window is ideal for machinery requiring variable end-stops across slightly different product sizes. If the exact 450 mm stroke is fixed and never requires trimming, a standard SAI cylinder would suffice, but this SAIJ variant saves time during machine setup. When specifying a replacement, match the 160 mm bore, 450 mm stroke, 75 mm adjustment range, PT ports, SUS304 rod, and the -S magnet option. Given the 450 mm stroke, ensure you use an external guide to prevent excessive side-loading on the rod.
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 SAIJ160 Adjustable Cylinder SAIJ160BX450-75S FAQ
At an operating pressure of 0.7 MPa, this 160 mm bore cylinder generates a push force of 14074 N and a pull force of 9425 N. It can reach a maximum push force of 18095 N at 0.9 MPa.
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the effective stroke from the 450 mm nominal length down to 375 mm. This adjuster only sets the travel end and does not lock or hold the load without continuous air pressure.
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