Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-30
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 550mm 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
- Stroke550 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-30
The AirTAC SAIJ160X550-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits fine-tuning of the retract end position. It delivers robust performance with a 14074N push force at 0.7MPa, while the external stopper provides a usable travel window of 520-550mm for exact positioning without external spacers. The extruded aluminum barrel incorporates sensor grooves on both sides for straightforward detection setup.
Equipped with a SUS304 stainless steel rod and a PT tapered port thread, this unit is built for demanding environments. The substantial 40mm rod diameter and M36x2 thread provide high resistance to side loads, though long 550mm strokes still require an external guide to prevent rod deflection. Adjustable air cushions at both ends ensure smooth deceleration of heavy masses.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-30 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 550 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 SAIJ160BX550-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×550 | 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 SAIJ160BX550-30 Is Used
Variable End-Stop Positioning
Dial in the retract position anywhere from 520mm to 550mm to accommodate varying material lengths without changing the cylinder setup.
Product Changeover
Quickly fine-tune the stroke end-point on automated lines during format changes, minimizing downtime between production runs.
Commissioning Calibration
Use the rear stopper screw to precisely set the final resting position during machine commissioning, avoiding mechanical hard stops.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX550-30 the Right Cylinder?
Choose this 160mm bore when an application demands high thrust—stepping down to the 125mm bore drops the 0.5MPa push force to 6136N, while the 200mm bore increases it to 15708N. The adjustable stroke is ideal for machine setups requiring variable end-stops during product changeovers, eliminating the need to physically swap out a fixed-stroke SAI cylinder.
When planning your ISO 15552 replacement, verify the 160mm bore, 550mm stroke, 30mm adjustment, PT port, and mounting style. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Note that the rear adjuster acts only as a travel stop; it cannot hold the load without live air. For true load-holding, consider the SAIL or BSAI series instead.
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 SAIJ160BX550-30 FAQ
At a 0.7MPa operating pressure, this 160mm bore cylinder generates a push force of 14074N and a pull force of 9425N. It can achieve a maximum push force of 18095N at 0.9MPa.
The rear adjuster screw allows you to shorten the nominal 550mm stroke by up to 30mm, providing an effective travel window of 520-550mm. This stopper sets the travel end but does not lock or hold the load without continuous air pressure.
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