Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-75S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 250mm 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
- Stroke250 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-75S
The AirTAC SAIJ160X250-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 250 mm travel by up to 75 mm. This creates a usable 175-250 mm end-position window, giving you immediate flexibility during machine commissioning or product changeovers without swapping out the barrel or adding external stops. In the 160 mm bore class, it generates a substantial 14074 N push force at 0.7 MPa and 18095 N at 0.9 MPa.
This specific SKU features a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, and because this model includes a magnet (-S), it is fully compatible with AirTAC CMSE reed and DMSE electronic solid-state switches for precise position feedback. The 40 mm rod diameter and M36x2 thread provide a robust interface, though for this 250 mm stroke an external guide is still recommended to manage side loads.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-75S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 250 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 SAIJ160BX250-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×250 | 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 SAIJ160BX250-75S Is Used
Variable End-Stop Forming
Dial in the exact 175 to 250 mm retract position for a multi-size metal forming press without machining custom spacers or changing the cylinder.
Product Changeover Automation
Quickly adjust the stroke window on a heavy-duty packaging line when switching to a new carton size, saving setup time and keeping ISO 15552 mounting intact.
Heavy Clamp Positioning
Fine-tune the clamping travel on a 14074 N press to accommodate varying material thicknesses, relying on the rear stopper for precise end-position tuning.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX250-75S the Right Cylinder?
Choose this 160 mm bore cylinder when your application requires high thrust (10053 N pull at 0.5 MPa) combined with variable end-stop positioning. If you need less force, stepping down to a 100 mm bore yields 5497 N push at 0.7 MPa; if you need more, the 200 mm bore offers 21991 N push. The integrated rear adjuster on this SAIJ model acts purely as a mechanical stop to fine-tune the retract position. It does not hold the load without live air pressure—if your application requires fail-safe load holding, you should select the SAIL air-released lock or BSAI clamp-lock cylinder instead.
When replacing a cylinder, match the 160 mm bore, 250 mm nominal stroke, 75 mm adjustment range, PT port thread, and -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR brackets. Operating speed is 30-500 mm/s, and the standard variable air cushions at both ends handle end-of-stroke 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 SAIJ160BX250-75S FAQ
At 0.7 MPa, the 160 mm bore provides a push force of 14074 N and a pull force of 12661 N. At 0.9 MPa, the push force increases to 18095 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke from 250 mm down to as little as 175 mm. It sets the travel end and relies on the air cushion for deceleration, but it does not lock the load without live air pressure.
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