Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-75
The AirTAC Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-75 is a genuine double-acting profile-type standard air cylinder with a Ø100mm bore and 850mm stroke, 1/2" air ports and adjustable end cushioning. Its hard-anodized aluminum-profile barrel is shorter than an ISO 15552 cylinder of the same bore, and it shares SC-series mounting accessories.
- BoreØ100 mm
- Stroke850 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-75
The AirTAC SAUJ100X850-75 is a double-acting, single-rod profile cylinder with an 850 mm maximum extend stroke. An external stop screw lets you trim the extend stroke on-site by up to 75 mm, yielding a usable range of 775 to 850 mm. The extruded aluminum barrel makes it shorter than an ISO 15552 cylinder of the same 100 mm bore. It features a 1/2 inch port, an M20x1.5 rod thread, and 29 mm adjustable air cushions at each end.
This bore delivers substantial power: 3927 N push and 3681 N pull at 0.5 MPa, peaking at 801 kgf at 1.0 MPa. A practical computed insight sets the safe working load around 2356 N, or a 200 kg vertical lift with a 2:1 margin. Because this SKU lacks a -S magnet, it cannot accept CMSG or DMSG sensors. For high-heat environments up to 150 C, you can specify the Viton H seal option instead of the standard -20 to 70 C range.
Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-75 Technical Specifications
| Model | Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-75 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø100 mm |
| Stroke | 850 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 29 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAU series datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G (BSPP). A high-temperature seal (0-150 °C) is available.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-75
| SAU | Profile-type standard cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×850 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAU-family variants: SAUD (double rod), SAUJ (adjustable stroke), SAUF (with built-in solenoid valve), and SAU-S with built-in magnet. Seals: TPU (blank) / Viton H / NBR N. Sensor switches: CMSG / DMSG / EMSG.
Where the Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-75 Is Used
Material Divertor
Requires field stroke tuning to hit exact divert positions on the fly without re-mounting the entire actuator assembly.
Pallet Stopper
Needs adjustable end positions to accommodate varying pallet depths on a packaging line during changeovers.
Press Sub-assembly
Demands precise extend stroke trimming to set contact depth for different product heights on the fly.
Is the Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-75 the Right Cylinder?
When sizing this unit, compare it against the 80 mm bore, which provides 2513 N push at 0.5 MPa. The 100 mm bore is necessary when you need the full 3927 N push or 7068 N at 0.9 MPa. Choose the SAUJ adjustable type over a fixed SAU when your machine assembly requires minor on-site stroke tuning without buying a new cylinder. Mounting options include Basic, FA flange, and LB foot styles, with physical mounting compatibility limited to the AirTAC SC series. At an 850 mm stroke, you must use external guides to prevent rod bending and manage side loads. Remember that the external stop screw only sets the end position; it is not a load lock, so add a pilot-operated check valve or external rod lock if you need to hold a load securely.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/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 — same as SC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAUJ100 Adjustable Cylinder SAUJ100X850-75 FAQ
At 0.5 MPa it provides 3927 N push and 3681 N pull. Push force is 5497 N at 0.7 MPa, 7068 N at 0.9 MPa, and the theoretical max is 801 kgf at 1.0 MPa. The nominal 850 mm extend stroke can be shortened by up to 75 mm via the external stop screw, giving a usable range of 775 to 850 mm. It uses a 1/2 inch port.
No, a plain cylinder drifts on air loss or when the valve is centered. The 29 mm adjustable air cushion only decelerates the piston near the end of travel, and the stop screw merely sets the end position. To hold a load securely, you must install an external rod lock or a pilot-operated check valve.
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