Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-75
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 850mm 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
- Stroke850 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-75
The AirTAC SAIJ160X850-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel window down to 775-850 mm without adding external stops. It delivers immense thrust, providing 14074 N of push force at 0.7 MPa and up to 18095 N at 0.9 MPa. The 40 mm SUS304 stainless steel piston rod and M36x2 thread provide excellent corrosion resistance and high side-load capacity for heavy-duty tooling.
This adjustable-stroke design is built for commissioning flexibility and product changeovers, letting you dial in the exact retract position on the fly. It uses a PT tapered port thread and includes adjustable air cushions at both ends to decelerate massive loads smoothly. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure; for true pneumatic locking, consider the SAIL or BSAI series instead.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-75 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 850 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 SAIJ160BX850-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×850 | 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 SAIJ160BX850-75 Is Used
Heavy Press Tuning
Dial in the exact 775-850 mm retract position during heavy press commissioning to accommodate different die heights without mechanical shimming.
Large Part Divergence
Adjust the retract stop on the fly to handle varying pallet sizes on a heavy-duty conveyor line, ensuring precise positioning for each product run.
Automated Assembly Setup
Set precise end-of-stroke limits for massive automated assembly actuators, fine-tuning the 850 mm travel window to match new fixture dimensions.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX850-75 the Right Cylinder?
Choose this 160 mm bore cylinder when your application requires extreme force that exceeds the 80 mm bore class (which provides 3518 N push at 0.7 MPa), but falls below the massive 21991 N output of the 200 mm class. The 75 mm adjustment range is specifically valuable for machinery that processes varying product sizes, allowing operators to set precise retract end-positions during changeovers rather than swapping out the entire cylinder for a fixed-stroke SAI unit.
When replacing an ISO 15552 cylinder, match the 160 mm bore, 850 mm stroke, 75 mm adjustment range, PT port thread, and your required mounting bracket from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 850 mm stroke is long and unsupported, an external guide is strongly recommended to prevent rod binding and premature seal wear under heavy 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 SAIJ160BX850-75 FAQ
At a standard 0.5 MPa operating pressure, this 160 mm bore cylinder provides 10053 N of push force and 9425 N of pull force. At 0.9 MPa, the push force increases to 18095 N.
The rear adjuster screw lets you mechanically shorten the effective travel from the nominal 850 mm down to 775 mm. This creates a 75 mm usable window for fine-tuning the retract end-position at commissioning, but it functions only as a stop and does not lock the load without continuous air pressure.
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