Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-40
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 85mm 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
- Stroke85 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-40
The AirTAC SAIJ160X85-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down from an 85 mm nominal stroke to a 45 mm minimum. This creates a 45-85 mm usable travel window, enabling precise end-position calibration at commissioning without swapping out the physical cylinder. Delivering 10053 N of pull force at 0.5 MPa, it is built for heavy-duty positioning.
This specific SKU features a SUS304 stainless steel rod for superior corrosion resistance and is fitted with PT tapered ports. The extruded aluminum barrel includes sensor grooves on both sides for mounting CMSE reed or DMSE electronic switches. Remember that the rear adjuster acts only as a travel stop; it does not lock the load mechanically without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-40 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 85 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 SAIJ160BX85-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×85 | 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 SAIJ160BX85-40 Is Used
Heavy Press Tuning
Dial in the exact 45-85 mm end position for a heavy pressing operation during machine setup without machining custom spacers.
Product Size Changeover
Quickly adjust the rear stop by up to 40 mm when switching a packaging line to accommodate a different product depth.
Welding Positioning
Leverage the SUS304 stainless rod for corrosion resistance in a weld cell while fine-tuning the stroke for varied jig sizes.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-40 the Right Cylinder?
Choose this 160 mm bore when you need substantial thrust—stepping up from an 80 mm bore roughly triples your 0.5 MPa pull force from 2268 N to 10053 N. The 40 mm adjustment range is ideal for product changeovers on a line where end-stops must be dialed in by a few centimeters without adding external hard stops. For load-holding without continuous air pressure, skip this model and look at the SAIL or BSAI series.
Because the nominal 85 mm stroke is relatively short, side-loading on the M36x2 rod thread is manageable, but an external guide is still recommended for heavy offsets. This cylinder uses the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. It is dimensionally interchangeable per ISO 15552.
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 SAIJ160BX85-40 FAQ
At a 0.5 MPa operating pressure, this 160 mm bore cylinder provides 14074 N of push force and 10053 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 2050 kgf.
The SAIJ160X85-40 has a nominal 85 mm stroke, but the rear adjuster screw allows you to shorten the effective travel by up to 40 mm. This creates a usable 45-85 mm travel window for fine-tuning end positions without changing the cylinder.
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