Airtac JSI Series Standard Cylinder JSI40X330STC
The AirTAC Airtac JSI Series Standard Cylinder JSI40X330STC is a genuine double acting JIS-standard air cylinder with a Ø40mm bore and 330mm stroke, G1/4 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.
- BoreØ40 mm
- Stroke330 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM14×1.5
- CushionAdjustable, 20.5 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 JSI40X330STC
Delivering 628 N of push force at 0.5 MPa, the AirTAC JSI40X330STC is a JIS-standard profile cylinder that occupies less machine envelope than an ISO 15552 unit of the same 40 mm bore. The extruded hard-anodized aluminum barrel omits external rods to resist wear, while the two-way piston seal retains grease for a long, low-friction service life. A built-in magnet (-S) allows CMSE or DMSE sensors to drop directly into the side grooves for position detection.
At 0.5 MPa you can plan for roughly 377 N of actual work output, which translates to lifting about 32 kg vertically with a 2:1 safety margin. The unit features a G1/4 port, an M14x1.5 rod thread, and adjustable air cushions at both ends to smooth out the 330 mm travel. Because this is a double-acting design, air drives the piston in both directions across its 30-800 mm/s speed range.
Airtac JSI Series Standard Cylinder JSI40X330STC Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI40X330STC |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 330 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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, 20.5 mm |
| Max standard stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 JSI40X330STC
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×330 | 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 JSI40X330STC Is Used
Package Diverting
Pushes cartons between adjacent conveyor lanes using the 628 N extend force, with the TC trunnion absorbing pivot stress during rapid 330 mm strokes.
Tote Stacking
Lifts plastic totes weighing up to 32 kg vertically at order-picking stations, relying on the built-in magnet to trigger DMSE sensors at the stack height.
Component Ejection
Clears molded plastic parts from a press bed, where the compact JIS profile saves valuable clearance compared to a taller ISO 15552 cylinder.
Is the Airtac JSI Series Standard Cylinder JSI40X330STC the Right Cylinder?
When sizing this 40 mm bore, consider the neighboring JSI series options: step down to a 32 mm bore for lighter loads (402 N push at 0.5 MPa) or move up to a 50 mm bore if you need greater thrust (982 N push at 0.5 MPa). The included TC trunnion mount provides a pivoting anchor point that accommodates slight alignment shifts along the 330 mm stroke.
Since the 330 mm stroke creates an extended lever arm, use an external guide rail to prevent rod bending and premature seal wear under side loads. Note that a standard cylinder will drift if air pressure drops or the valve is centered; the end cushions only decelerate the piston near stroke limits and do not function as a braking device. To suspend a load safely during an outage, install an external rod lock or a pilot-operated check valve.
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 JSI40X330STC FAQ
This 40 mm bore cylinder delivers 628 N push and 528 N pull at 0.5 MPa, 879 N push and 739 N pull at 0.7 MPa, with a theoretical maximum of 128 kgf at 1.0 MPa. It uses a G1/4 air port and features an M14x1.5 rod thread.
The TC trunnion mount bolts to the cylinder body to allow pivoting articulation, ideal for articulated mechanisms. The -S suffix indicates an integrated piston magnet, enabling CMSE or DMSE reed or electronic switches to be installed in the side sensor grooves.
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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.
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