Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 70mm 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
- Stroke70 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-20S
The AirTAC SAIJ160X70-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling you to fine-tune the end-of-travel position during commissioning. With a 70 mm nominal stroke and a 20 mm adjustment range, it provides a usable travel window of 50 to 70 mm. This 160 mm bore size generates 14074 N of push force at 0.7 MPa, making it well-suited for heavy-duty positioning tasks.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides. It uses a PT tapered G3/4 port and offers variable air cushioning at both ends to decelerate heavy loads smoothly.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 70 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 SAIJ160BX70-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×70 | 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 SAIJ160BX70-20S Is Used
Heavy Press Fine-Tuning
Dial in the exact 50 to 70 mm end-position on heavy pressing operations without swapping cylinders or adding external mechanical stops.
Product Size Changeover
Quickly adjust the retract stop to accommodate varying product dimensions on a high-force production line.
Machine Setup Commissioning
Perfect for final end-position calibration during initial machine setup, allowing 20 mm of rear-screw travel adjustment.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-20S the Right Cylinder?
Selecting this 160 mm bore over the smaller 125 mm bore gives you a significant force boost, stepping up from 8590 N to 14074 N at 0.7 MPa. An adjustable stroke is highly beneficial when you need a variable end-stop for product changeovers on a line, rather than installing fixed external stops or swapping out a standard SAI cylinder. Because the stroke is short at 70 mm, side-load risks are minimal, but always ensure the load is guided to prevent binding.
When matching this for an ISO 15552 replacement, verify the 160 mm bore, 70 mm stroke, 20 mm adjustment, PT G3/4 port, and the -S magnet requirement. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding without pressure, consider the SAIL or BSAI series. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ160BX70-20S FAQ
At an operating pressure of 0.7 MPa, this 160 mm bore cylinder generates 14074 N of push force and 9425 N of pull force. It can deliver up to 18095 N of push force at 0.9 MPa.
The rear adjuster screw lets you shorten the 70 mm nominal stroke by up to 20 mm, providing a usable travel window of 50 to 70 mm. The adjuster acts as a mechanical stop to set the end position and does not lock the load without live air pressure.
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