Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-50S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 125mm 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
- Stroke125 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-50S
The AirTAC SAIJ160X125-50-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a 10053N push force at 0.5MPa and provides a usable travel window of 75 to 125mm, allowing you to trim the nominal 125mm stroke by up to 50mm during machine setup. The extruded aluminum barrel includes sensor grooves on both sides for straightforward detection integration.
Equipped with a carbon steel rod and PT tapered ports, this unit operates at speeds of 30-500mm/s. The rear adjuster acts purely as a mechanical stop to fine-tune the end position without adding external stops, while the variable air cushions manage deceleration. It supports the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR options.
Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-50S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 125 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 SAIJ160X125-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×125 | 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 SAIJ160X125-50S Is Used
Variable End-Stop Positioning
Dial the stroke back between 75 and 125mm to hit precise retract distances without machining custom spacers or changing the cylinder.
Product Changeover Setup
Quickly reconfigure the travel end for different sized parts on a packaging line using the 50mm rear adjustment screw.
Heavy Assembly Pressing
Leverage the 10053N push force at 0.5MPa for heavy pressing tasks, fine-tuning the bottoming position during commissioning.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160X125-50S the Right Cylinder?
Choose this 160mm bore when an 80mm cylinder (providing 2513N push at 0.5MPa) lacks the power to move your load, but you prefer not to jump to a 200mm unit. The 50mm adjustment range is ideal for product changeovers, letting you dial in the exact end-stop on the fly instead of physically swapping a fixed-stroke SAI cylinder. Because the 125mm stroke is under 300mm, side-load stress on the 40mm carbon steel rod is moderate, though an external guide is still recommended for heavy lateral loads.
For an ISO 15552 replacement match, pair this SKU with a PT port thread, the required SAIJ mounting accessory, and the integrated -S magnet. Remember that the rear adjuster is a travel stop, not a locking device; this cylinder will not hold a load without live air pressure. For fail-safe load holding, consider an AirTAC SAIL or BSAI series cylinder.
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 SAIJ160X125-50S FAQ
At 0.5MPa operating pressure, this 160mm bore cylinder provides 10053N of push force and 9425N of pull force. It can generate up to 18095N push at 0.9MPa.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the nominal 125mm down to 75mm. It sets the end position but does not lock the load without continuous air pressure.
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