Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 450mm 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
- Stroke450 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-50S
The AirTAC SAIJ100X450-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that lets you trim the effective travel window down to 400 mm from the 450 mm nominal stroke. It delivers robust thrust, pushing 7068 N at 0.9 MPa, making it well-suited for heavy actuation. The barrel is extruded aluminum with sensor grooves on both sides, and this variant includes a magnet for position detection.
This specific SKU is built with a SUS304 stainless steel rod for superior corrosion resistance and uses a PT tapered G1/2 port. The rear adjuster acts purely as a mechanical stop to fine-tune the end position at commissioning without adding external stops. It is important to note that this adjuster is not a lock; the cylinder cannot hold a load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 450 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 SAIJ100BX450-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×450 | 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 SAIJ100BX450-50S Is Used
Product Changeover
Dial in the 400-450 mm stroke window on the fly when switching product sizes on a packaging line, avoiding physical cylinder swaps.
Heavy Pressing
Leverage the 7068 N push force at 0.9 MPa for heavy-duty pressing or forming tasks that require precise end-position tuning.
Machine Setup
Fine-tune the retract end-stop during initial commissioning to dial in exact clamping or positioning without external stopper blocks.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-50S the Right Cylinder?
Choose this 100 mm bore when 80 mm is insufficient (80 mm yields 4523 N push at 0.9 MPa) or when you want to step down from a 125 mm bore that produces 11045 N. The adjustable stroke is ideal for machine setups requiring variable end-stops or product changeovers, saving you from swapping out a fixed-stroke SAI cylinder. Because the stroke is 450 mm, an external guide is recommended to handle side loads and prevent rod binding over the long travel distance.
For an exact ISO 15552 replacement, match the 100 mm bore, 450 mm nominal stroke, 50 mm adjustment range, PT G1/2 port, SUS304 (B) rod material, and the -S magnet option. The available mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2. For load-holding applications without live pressure, consider the SAIL or BSAI series instead, as the SAIJ adjuster only halts travel.
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 SAIJ100BX450-50S FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 50 mm. This creates a usable travel window between 400 mm and 450 mm, allowing you to fine-tune the end position without changing the cylinder.
At 0.9 MPa operating pressure, this 100 mm bore cylinder provides a push (extend) force of 7068 N and a pull (retract) force of 3681 N.
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 SAIJ100BX450-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.