Airtac SAIJ160 Adjustable Cylinder SAIJ160AX650-40S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX650-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 650mm 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
- Stroke650 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX650-40S
The AirTAC SAIJ160X650-40-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications requiring exact end-position tuning. It features a 160mm bore and a 650mm stroke, but the integrated rear adjuster lets you trim the effective travel back by up to 40mm. This creates a highly usable 610-650mm travel window, allowing you to dial in the exact retract distance during commissioning without swapping out the entire actuator or bolting on external stops.
Delivering immense thrust, this model outputs 14074N of push force and 9425N of pull force at 0.7 MPa. The piston rod is constructed from SUS420J2 stainless steel (material code A) for enhanced durability against moisture, and the -S suffix means it includes a magnet for position sensing. You can mount CMSE reed or DMSE electronic solid-state switches directly into the extruded aluminum barrel's dual sensor grooves. It operates at speeds of 30-500 mm/s and uses PT tapered G3/4 ports.
Airtac SAIJ160 Adjustable Cylinder SAIJ160AX650-40S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX650-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 650 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 SAIJ160AX650-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×650 | 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 SAIJ160AX650-40S Is Used
Heavy Machinery Changeover
Dial in the 610-650mm retract distance during product size changes on large presses or forming equipment without disassembling the actuator.
Precision Positioning Stops
Use the rear mechanical stop to establish exact end-positions for heavy 14074N loads, fine-tuning the travel window by up to 40mm at commissioning.
Large Assembly Fixtures
Leverage the SUS420J2 stainless steel rod and robust 40mm rod diameter to handle heavy clamping tasks while tuning the exact stroke limit on the fly.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX650-40S the Right Cylinder?
Select this 160mm bore actuator when your application demands extreme force that smaller bores cannot provide, such as stepping up from a 125mm cylinder which offers 8590N push force at 0.5 MPa. The adjustable 610-650mm stroke is ideal for product changeovers on large machinery, where varying end-stops are required without mechanical rebuilds. Because the nominal stroke is 650mm, you must use an external guide to support the load and prevent excessive side-loading on the rod, as even the robust 40mm diameter SUS420J2 rod cannot compensate for long unsupported leverage.
As a double-acting cylinder, the rear adjuster acts purely as a mechanical stop to set the travel end and relies on the variable air cushions for deceleration; it is not a locking device and will not hold a load without live air pressure. For load-holding requirements without continuous air, consider an AirTAC SAIL or BSAI cylinder. This SAIJ model is dimensionally interchangeable per ISO 15552 and supports a mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
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 SAIJ160AX650-40S FAQ
At an operating pressure of 0.7 MPa, this 160mm bore cylinder provides a push force of 14074N and a pull force of 9425N. At the maximum rated pressure of 1.0 MPa, it achieves a maximum push force of 18095N.
The rear adjusting screw allows you to shorten the 650mm nominal stroke by up to 40mm, providing an effective travel window of 610-650mm. This stopper fine-tunes the end position but does not lock the load without live air pressure.
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