Airtac JSI Series Standard Cylinder JSI40X175S
The AirTAC Airtac JSI Series Standard Cylinder JSI40X175S is a genuine double acting JIS-standard air cylinder with a Ø40mm bore and 175mm 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
- Stroke175 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 JSI40X175S
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore double-acting actuator fits tight machine envelopes. As a JIS-standard profile cylinder, it is noticeably shorter and more compact than an equivalent ISO 15552 unit of the same 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.
Because this SKU includes the -S magnet, you can drop CMSE or DMSE reed and electronic switches directly into the side sensor grooves. The G1/4 port and 175 mm stroke make it highly versatile; plan for about 377 N of real work at 0.5 MPa, which means it lifts roughly 32 kg vertically with a 2:1 safety margin.
Airtac JSI Series Standard Cylinder JSI40X175S Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI40X175S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 175 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 JSI40X175S
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×175 | 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 JSI40X175S Is Used
Package Diverting
Pushes small cartons off a packaging conveyor using 628 N of thrust, fitting neatly into tight transfer chutes.
Small Part Clamping
Secures aluminum brackets during a CNC machining pass, with the -S magnet confirming clamp position to the controller.
Light Pressing
Applies downward pressure to seat electronic connectors onto PCBs, safely lifting parts under 32 kg.
Is the Airtac JSI Series Standard Cylinder JSI40X175S the Right Cylinder?
When sizing this 40 mm bore, stepping down to a 32 mm version drops the 0.5 MPa push force to 402 N, while moving up to a 50 mm bore increases it to 982 N. The integrated -S magnet pairs perfectly with CMSE or DMSE sensors for position detection. Keep in mind that the adjustable air cushion only decelerates the piston near the stroke ends; it will not hold a load if air pressure drops. Use an external rod lock or pilot-operated check valve for secure vertical holding.
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 JSI40X175S FAQ
This 40 mm bore cylinder features a G1/4 port and generates 628 N push / 528 N pull at 0.5 MPa, 879 N push / 739 N pull at 0.7 MPa, and a theoretical maximum of 128 kgf at 1.0 MPa.
The JSI design is shorter and more compact than an ISO 15552 cylinder of the same 40 mm bore, saving valuable machine space while retaining standard mounting options like LB foot, FA flange, and TC trunnion.
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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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