Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-30S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-30S 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 SAIJ160BX70-30S
The AirTAC SAIJ160X70-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers substantial thrust, providing 14074N push and 10053N pull at 0.7 MPa. The built-in rear stopper allows you to fine-tune the effective travel window down from the 70mm nominal stroke to a precise 40-70mm range during commissioning.
This specific configuration ships with a SUS304 stainless steel rod (option B) for superior corrosion resistance and includes a magnet for position sensing. It supports AirTAC CMSE reed and DMSE solid-state switches fitted into the dual-side sensor grooves on the extruded aluminum barrel. Operating speed spans 30-500 mm/s, and the PT tapered port ensures a tight pneumatic seal.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-30S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-30S |
|---|---|
| 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 SAIJ160BX70-30S
| 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 SAIJ160BX70-30S Is Used
Product Changeover Tuning
Dial in the 40-70mm travel window on the fly during packaging line format changes, using the rear screw to set new end stops without swapping the cylinder.
Heavy Pressing Operations
Leverage the 14074N push force at 0.7 MPa for heavy assembly presses, using the adjustable stopper to precisely control the bottoming position.
Machine Setup Calibration
Fine-tune the retract end position during initial machine commissioning, eliminating the need for custom spacer shims on the 160mm bore frame.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX70-30S the Right Cylinder?
Choose this 160mm bore when you need heavy linear force but require exact end-position tuning without adding external mechanical stops. If your application needs less force, stepping down to a 125mm bore yields 8590N push at 0.7 MPa, but this SAIJ160X70-30-S provides the extra power required for high-load product changeovers. The rear adjuster acts purely as a travel stop to set deceleration, not as a lock; it will not hold a load without live air. For fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder.
To replace an ISO 15552 cylinder of the same footprint, match the 160mm bore, 70mm stroke, 30mm adjustment, PT port, and the -S magnet. The SAIJ series uses a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR styles. Because the 40mm rod and M36x2 thread are robust, side-load capacity is high, though long unsupported strokes still require an external guide.
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 SAIJ160BX70-30S FAQ
The rear adjuster acts as an external stopper that lets you shorten the effective stroke by up to 30mm. This creates a usable travel window of 40-70mm from the 70mm nominal stroke, allowing fine end-position tuning without changing the cylinder.
At 0.7 MPa, it provides 14074N of push force and 10053N of pull force. At the maximum operating pressure of 1.0 MPa, the push force reaches 18095N.
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