Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-50S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-50S 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 SAIJ160BX70-50S
The AirTAC SAIJ160X70-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 70 mm nominal travel to a usable window of 20-70 mm. It delivers substantial thrust, providing 9425 N of pull force at 0.5 MPa and up to 18095 N at 0.9 MPa. The integrated -S magnet enables position feedback via AirTAC CMSE reed and DMSE solid-state sensors fitted into the dual-side barrel grooves.
This variant features a SUS304 stainless steel rod (material code B) for superior corrosion resistance and a PT tapered port thread. The rear adjustment screw acts purely as a mechanical stop to fine-tune the end position during commissioning; it does not lock the load without continuous live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-50S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-50S |
|---|---|
| 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 SAIJ160BX70-50S
| 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 SAIJ160BX70-50S Is Used
Heavy Press Tuning
Dial in the exact 20-70 mm travel window during heavy press commissioning to accommodate material thickness variations without replacing the cylinder.
Product Changeover
Quickly adjust the retract end-stop on a packaging line when switching to a different product size, saving downtime on mechanical modifications.
Corrosive Assembly
Leverage the SUS304 stainless steel rod for high-force clamping and positioning tasks in environments where moisture or corrosive elements are present.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-50S the Right Cylinder?
Choose this 160 mm bore when 100 mm bore cylinders (offering 3681 N pull at 0.5 MPa) cannot provide enough force, but stepping up to a 200 mm bore (15080 N pull at 0.5 MPa) would be excessive. The 50 mm adjustment range is ideal for product changeovers, letting you shift the end-stop without physically swapping the cylinder or adding external stops. Although the 70 mm stroke is short, the robust 40 mm rod and M36x2 thread handle high side loads effectively.
When specifying a replacement, ensure it matches the ISO 15552 mounting interface dimensions, 160 mm bore, 70 mm stroke, 50 mm adjustment range, PT G3/4 port, and the -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Remember that the rear adjuster only sets the travel end and relies on the variable air cushion for deceleration.
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 SAIJ160BX70-50S FAQ
At 0.5 MPa operating pressure, it provides 10053 N of push force and 9425 N of pull force. At the maximum 0.9 MPa pressure, the push force reaches 18095 N.
The rear adjuster screw allows you to shorten the 70 mm nominal stroke by up to 50 mm, creating a usable travel window of 20-70 mm. This stopper fine-tunes the end position but does not hold the load without live air pressure.
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