Airtac SAIJ160 Adjustable Cylinder SAIJ160BX650-20
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX650-20 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 SAIJ160BX650-20
The AirTAC SAIJ160X650-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 630 to 650 mm usable travel window. It delivers substantial thrust, providing 10053 N of pull force and 14074 N of push force at 0.7 MPa. This makes it well-suited for heavy-duty machinery requiring exact end-position tuning during commissioning without swapping out the entire cylinder.
Built with a SUS304 stainless steel rod for corrosion resistance and PT tapered port threads, this 160 mm bore unit includes variable air cushions at both ends. The rear adjustment screw acts purely as a travel stop to fine-tune the retract distance, and unlike an air-released lock cylinder (SAIL) or clamp-lock (BSAI), it will not hold a load safely without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX650-20 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX650-20 |
|---|---|
| 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 SAIJ160BX650-20
| 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 SAIJ160BX650-20 Is Used
Heavy Press Tuning
Dial in the exact 630 to 650 mm end-position for large metal forming or pressing tasks without physically changing the cylinder.
Product Size Changeover
Quickly adjust the retract stop to accommodate varying product lengths on a high-force assembly line during setup.
Automated Heavy Machinery
Provide reliable 10053 N pull force for large-scale automated material handling while fine-tuning the travel distance during commissioning.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX650-20 the Right Cylinder?
Choose this 160 mm bore cylinder when an application requires heavy force and precise end-stop calibration, stepping up from a 125 mm bore that yields only 5734 N of pull at 0.5 MPa. The 20 mm adjustment range is ideal for variable product sizes on a line, allowing operators to dial back the 650 mm nominal stroke to a 630 mm minimum without adding external stops. For load-holding without continuous air pressure, an external pilot-operated check valve or a SAIL lock cylinder is required, as the adjuster is not a brake.
When replacing an ISO 15552 cylinder, match the 160 mm bore, 650 mm stroke, 20 mm adjustment, G3/4 port, and mounting interface. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the 650 mm stroke is long and unsupported, an external guide is strongly recommended to manage side loads on the 40 mm rod and M36x2 thread. Operating speed is 30-500 mm/s.
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 SAIJ160BX650-20 FAQ
At 0.5 MPa, this 160 mm bore cylinder provides 10053 N of pull force and 14053 N of push force. At 0.7 MPa, the push force increases to 14074 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 650 mm nominal stroke by up to 20 mm, creating a 630 to 650 mm usable travel window. It is a travel stop, not a lock, and does not hold the load without live air pressure.
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