Airtac SAIJ160 Adjustable Cylinder SAIJ160AX85-50S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX85-50S 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 SAIJ160AX85-50S
The AirTAC SAIJ160X85-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 85 mm travel by up to 50 mm. This creates a highly flexible 35 to 85 mm usable stroke window, ideal for fine-tuning end positions during commissioning without swapping hardware. It features a robust SUS420J2 stainless steel rod (code A) and includes a magnet for position sensing.
Delivering substantial thrust, this 160 mm bore unit generates 10053 N of pull force at 0.5 MPa and reaches 18095 N at 0.9 MPa. The extruded aluminum barrel includes sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic sensors. It utilizes PT tapered ports and operates at speeds between 30 and 500 mm/s, supported by 50 mm air cushions at both ends for controlled deceleration.
Airtac SAIJ160 Adjustable Cylinder SAIJ160AX85-50S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX85-50S |
|---|---|
| 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 SAIJ160AX85-50S
| 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 SAIJ160AX85-50S Is Used
Machine Changeover
Quickly adapt end-of-stroke positions within the 35-85 mm window when switching between product sizes on a high-force assembly line.
Press Fit Tuning
Dial in the exact bottoming position for heavy press operations during commissioning without machining custom stop collars.
Material Forming
Adjust the retraction stop on the fly to accommodate varying material thicknesses in heavy-duty pneumatic forming stations.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX85-50S the Right Cylinder?
Choose this adjustable-stroke model when an application requires exact end-position tuning on the fly, avoiding the need to bolt on external stops or machine custom spacers. If the 10053 N pull force at 0.5 MPa exceeds your requirements, stepping down to a 125 mm bore yields 5734 N, whereas moving up to a 200 mm bore provides 15080 N. Remember that the rear adjuster functions strictly as a travel stop, not a lock; the SAIJ cannot hold a load without live air pressure. For positive load-holding, consider an external pilot-operated check valve or the AirTAC SAIL lock cylinder.
As a dimensionally interchangeable ISO 15552 cylinder, it supports a specific mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2. When replacing a unit, verify the 160 mm bore, 85 mm nominal stroke, 50 mm adjustment range, PT port threads, and the -S magnet option. The 40 mm rod diameter and M36x2 thread provide excellent rigidity, though any application approaching the maximum stroke limits should incorporate an external guide to manage side loads.
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 SAIJ160AX85-50S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke by up to 50 mm. This turns the fixed 85 mm travel into a 35 to 85 mm adjustable window. It only sets the end position and does not lock the load without live air pressure.
At 0.5 MPa, it provides 10053 N of pull force and 14074 N at 0.7 MPa. At its maximum operating pressure of 1.0 MPa, the push force reaches 2050 kgf.
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