Airtac JSI Series Standard Cylinder JSI100X250SFA
The AirTAC Airtac JSI Series Standard Cylinder JSI100X250SFA is a genuine double acting JIS-standard air cylinder with a Ø100mm bore and 250mm stroke, G1/2 air ports and adjustable end cushioning. Its no-tie-rod, hard-anodized profile barrel is more compact than an ISO 15552 cylinder of the same bore — a space-saver on tight machines.
- BoreØ100 mm
- Stroke250 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM26×1.5
- CushionAdjustable, 33 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac JSI Series Standard Cylinder JSI100X250SFA
Delivering 3927 N of push force at 0.5 MPa, this double-acting JIS-standard profile cylinder saves valuable machine space by being shorter and more compact than an equivalent ISO 15552 model. The extruded hard-anodized aluminum barrel eliminates external rods to resist wear, while a two-way piston seal retains grease for long, low-friction life. A built-in piston magnet is included for position sensing.
With a 100 mm bore and 250 mm stroke, it handles serious workloads safely at about 2356 N of real work, which translates to lifting roughly 200 kg vertically with a 2:1 safety margin. The G1/2 port and M26x1.5 rod thread provide high flow and secure mechanical attachment. CMSE or DMSE switches drop directly into the side sensor grooves, and an FA flange provides a robust front mounting interface.
Airtac JSI Series Standard Cylinder JSI100X250SFA Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI100X250SFA |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 250 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M26×1.5 |
| 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, 33 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC JSI (JIS standard) datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G. Barrel: hard-anodized aluminum profile (no tie rods).
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3525 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 JSI Series Standard Cylinder JSI100X250SFA
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×250 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensors. |
JSI-family variants: JSI (double acting), JSID (double rod), JSIJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / TCM1 / TCM2. Thread PT (blank) / G.
Where the Airtac JSI Series Standard Cylinder JSI100X250SFA Is Used
Injection Mold Clamping
Provides 3927 N of push force at 0.5 MPa to secure mid-sized injection mold halves within an automated plastics facility.
Pallet Diverting
Shifts heavy product pallets off a main conveyor line using a 250 mm stroke and an FA flange mount to handle repeated lateral impacts.
Vertical Crate Lifting
Lifts loaded shipping crates weighing up to 200 kg vertically with a 2:1 safety margin, utilizing the 100 mm bore power band.
Is the Airtac JSI Series Standard Cylinder JSI100X250SFA the Right Cylinder?
If 3927 N of push at 0.5 MPa is excessive, the 80 mm bore offers 2513 N; if your application requires more power, the 125 mm bore delivers 6136 N. Because this is a double-acting air cylinder, the piston will drift if air pressure is lost or the valve is centered, as the adjustable 33 mm air cushions only decelerate the rod near stroke end rather than locking it. For suspended loads, specify an external rod lock or a pilot-operated check valve. The included magnet pairs with CMSE or DMSE sensors, and the FA flange mount secures the body for rigid front mounting.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ 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 Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac JSI Series Standard Cylinder JSI100X250SFA FAQ
This 100 mm bore cylinder features a G1/2 port and delivers 3927 N push / 3574 N pull at 0.5 MPa, 5497 N push / 5003 N pull at 0.7 MPa, with a theoretical maximum of 801 kgf at 1.0 MPa. It operates at speeds between 30-800 mm/s.
The JSI is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same bore, saving space on tight machines. It uses an extruded aluminum barrel without external rods and includes a built-in magnet for CMSE or DMSE side-groove sensors.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC JSI Cylinders
Request a Quote for Airtac JSI Series Standard Cylinder JSI100X250SFA
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.