Airtac SAIJ100 Adjustable Cylinder SAIJ100BX850-100
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX850-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 850mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke850 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX850-100
The AirTAC SAIJ100X850-100 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a robust 7068N of push force at 0.9 MPa, utilizing a 25mm piston rod with an M20x1.5 thread. The integrated adjuster allows you to trim the effective travel, creating a 750-850mm usable stroke window without replacing the cylinder. This capability is ideal for fine-tuning end positions during machine commissioning or product changeovers.
This specific configuration features a SUS304 stainless steel rod (material code B) for superior corrosion resistance in harsh environments. Fluid supply is routed through a PT tapered G1/2 port. The extruded aluminum barrel includes sensor grooves on both sides, and while this unit lacks a magnet, adding one enables compatibility with AirTAC CMSE reed and DMSE solid-state sensors. The adjustable stopper relies on live air pressure to maintain position; it is a travel stop, not a locking device.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX850-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX850-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 850 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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, 36 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 (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 SAIJ100 Adjustable Cylinder SAIJ100BX850-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | 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 SAIJ100 Adjustable Cylinder SAIJ100BX850-100 Is Used
Product Changeover
Dial in the 100mm travel adjustment window to rapidly switch between varying package sizes on a packaging line without physically repositioning the cylinder.
Long-Stroke Forming
Leverage the 7068N push force at 0.9 MPa for pressing or forming operations, using the rear stopper to precisely set the final 750-850mm end position.
Machine Commissioning
Fine-tune the end-of-stroke location during initial setup to perfectly align tooling, eliminating the need for external mechanical stops or custom spacers.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX850-100 the Right Cylinder?
Choose this 100mm bore cylinder when your application requires high thrust (up to 801 kgf at 1.0 MPa) alongside flexible end-position tuning. If your force requirements are lower, stepping down to an 80mm bore yields 4523N at 0.9 MPa, while moving up to a 125mm bore provides 11045N. The 100mm adjustment range here is perfect for accommodating significant product-size changes on a line without swapping out physical stops.
Because the 850mm stroke is substantial, an external guide is strongly recommended to prevent excessive side-loading on the rod, despite the robust 25mm diameter. For any load-holding requirements without constant air pressure, note that this rear adjuster only decelerates travel; you must integrate an external rod lock or select a SAIL or BSAI cylinder instead. When matching an ISO 15552 replacement, verify the 850mm stroke, 100mm adjustment, PT G1/2 port, SUS304 rod, and the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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 SAIJ100 Adjustable Cylinder SAIJ100BX850-100 FAQ
At a standard operating pressure of 0.7 MPa, this 100mm bore cylinder provides 5497N of push force. At 0.9 MPa, the push force increases to 7068N, with a maximum push force of 801 kgf at 1.0 MPa.
The rear adjusting screw acts as an external stopper, allowing you to shorten the 850mm nominal stroke by up to 100mm. This creates a 750-850mm usable travel window for precise end-position tuning. The adjuster only sets the travel end and does not lock the load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ100 Adjustable Cylinder SAIJ100BX850-100
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.