AirTAC JSI40 Standard Air Cylinder, 40 mm Bore
Every AirTAC JSI40 configuration on one page: 118 stock order codes with strokes from 12 to 1500 mm and 7 mountings, from $48.14. Pick a stroke, mounting and version to see the exact order code and price.
This combination is not a stock order code. Request a quote and we will confirm availability and price.
- 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 JSI40
The AirTAC JSI40 is a double-acting standard air cylinder with a 40 mm bore and a 16 mm piston rod. At 0.5 MPa it pushes 628 N and pulls 528 N; at 0.7 MPa that rises to 880 N push and 739 N pull. Force depends on bore and pressure only, so every stroke on this page gives the same output.
All JSI40 versions share 1/4" air ports, an M14×1.5 rod thread and 20.5 mm adjustable air cushions. The cylinder runs on filtered air between 0.15 and 1.0 MPa (proof 1.5 MPa), from -20 to +70 °C, at 30 to 800 mm/s. This page lists 118 stock order codes with strokes from 12 to 1500 mm; the catalog maximum stroke is 1200 mm, and the longer codes are non-standard strokes we already supply.
JSI40 Technical Specifications
| Bore size | Ø40 mm |
|---|---|
| Stock strokes | 12 – 1500 mm |
| Catalog maximum stroke | 1200 mm (longer on request) |
| Acting type | Double acting |
| Port size | 1/4" (PT standard) |
| Piston rod / rod thread | Ø16 mm / M14×1.5 |
| Fluid | Air (filtered by 40 µm 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 air cushion, 20.5 mm |
Source: AirTAC Products Catalog 2026A (PDF01-P0420), JSI series ordering code and specifications.
Theoretical output force (Ø40 mm)
| Pressure | Push | Pull |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
Push = pressure × bore area; pull subtracts the Ø16 mm rod area. Usable force is lower because of friction and back-pressure.
How the JSI40 Order Code Is Built
| JSI40 | Series and bore (40 mm) |
|---|---|
| X100 | Stroke in mm |
| S | Built-in magnet for position sensors (blank = none) |
| LB / FA / FB / CA / CB / CR / TC | Mounting: LB foot; FA front flange; FB rear flange; CA single clevis; CB double clevis; CR rear pin clevis; TC center trunnion (blank = none) |
| G | Port thread: G = G (BSPP), blank = PT |
All AirTAC JSI40 Order Codes (118)
Each order code links to its own datasheet page. Use Select to load it into the configurator above.
| Order code | Stroke (mm) | Mounting | Magnet · Thread | Price | Select |
|---|---|---|---|---|---|
| JSI40X12 | 12 mm | Basic (no mounting) | - · PT | $48.14 | |
| JSI40X15 | 15 mm | Basic (no mounting) | - · PT | $48.14 | |
| JSI40X15S | 15 mm | Basic (no mounting) | S · PT | $50.93 | |
| JSI40X15STC | 15 mm | TC center trunnion | S · PT | $74.20 | |
| JSI40X20 | 20 mm | Basic (no mounting) | - · PT | $48.14 | |
| JSI40X20S | 20 mm | Basic (no mounting) | S · PT | $50.93 | |
| JSI40X25 | 25 mm | Basic (no mounting) | - · PT | $48.14 | |
| JSI40X25S | 25 mm | Basic (no mounting) | S · PT | $50.93 | |
| JSI40X25TC | 25 mm | TC center trunnion | - · PT | $71.41 | |
| JSI40X25STC | 25 mm | TC center trunnion | S · PT | $74.20 | |
| JSI40X30 | 30 mm | Basic (no mounting) | - · PT | $49.28 | |
| JSI40X30S | 30 mm | Basic (no mounting) | S · PT | $52.07 | |
| JSI40X35 | 35 mm | Basic (no mounting) | - · PT | $49.28 | |
| JSI40X35S | 35 mm | Basic (no mounting) | S · PT | $52.07 | |
| JSI40X40 | 40 mm | Basic (no mounting) | - · PT | $49.28 | |
| JSI40X50S | 50 mm | Basic (no mounting) | S · PT | $52.07 | |
| JSI40X50FA | 50 mm | FA front flange | - · PT | $56.26 | |
| JSI40X50SFA | 50 mm | FA front flange | S · PT | $59.05 | |
| JSI40X50FB | 50 mm | FB rear flange | - · PT | $56.26 | |
| JSI40X50SFB | 50 mm | FB rear flange | S · PT | $59.05 | |
| JSI40X50CA | 50 mm | CA single clevis | - · PT | $57.19 | |
| JSI40X50TC | 50 mm | TC center trunnion | - · PT | $72.55 | |
| JSI40X50STC | 50 mm | TC center trunnion | S · PT | $75.34 | |
| JSI40X80S | 80 mm | Basic (no mounting) | S · PT | $55.59 | |
| JSI40X85 | 85 mm | Basic (no mounting) | - · PT | $52.80 | |
| JSI40X100 | 100 mm | Basic (no mounting) | - · PT | $52.80 | |
| JSI40X100S | 100 mm | Basic (no mounting) | S · PT | $55.59 | |
| JSI40X100FA | 100 mm | FA front flange | - · PT | $59.78 | |
| JSI40X100SFA | 100 mm | FA front flange | S · PT | $62.57 | |
| JSI40X100CA | 100 mm | CA single clevis | - · PT | $60.71 | |
| JSI40X100TC | 100 mm | TC center trunnion | - · PT | $76.06 | |
| JSI40X100STC | 100 mm | TC center trunnion | S · PT | $78.85 | |
| JSI40X110S | 110 mm | Basic (no mounting) | S · PT | $57.45 | |
| JSI40X120 | 120 mm | Basic (no mounting) | - · PT | $54.66 | |
| JSI40X120S | 120 mm | Basic (no mounting) | S · PT | $57.45 | |
| JSI40X125 | 125 mm | Basic (no mounting) | - · PT | $54.66 | |
| JSI40X125S | 125 mm | Basic (no mounting) | S · PT | $57.45 | |
| JSI40X125TC | 125 mm | TC center trunnion | - · PT | $77.92 | |
| JSI40X125STC | 125 mm | TC center trunnion | S · PT | $80.71 | |
| JSI40X130S | 130 mm | Basic (no mounting) | S · PT | $59.05 | |
| JSI40X137S | 137 mm | Basic (no mounting) | S · PT | $59.05 | |
| JSI40X140S | 140 mm | Basic (no mounting) | S · PT | $59.05 | |
| JSI40X145 | 145 mm | Basic (no mounting) | - · PT | $56.26 | |
| JSI40X145S | 145 mm | Basic (no mounting) | S · PT | $59.05 | |
| JSI40X150 | 150 mm | Basic (no mounting) | - · PT | $56.26 | |
| JSI40X150S | 150 mm | Basic (no mounting) | S · PT | $59.05 | |
| JSI40X150TC | 150 mm | TC center trunnion | - · PT | $79.52 | |
| JSI40X150STC | 150 mm | TC center trunnion | S · PT | $82.31 | |
| JSI40X155S | 155 mm | Basic (no mounting) | S · PT | $60.91 | |
| JSI40X160 | 160 mm | Basic (no mounting) | - · PT | $58.12 | |
| JSI40X160S | 160 mm | Basic (no mounting) | S · PT | $60.91 | |
| JSI40X165S | 165 mm | Basic (no mounting) | S · PT | $60.91 | |
| JSI40X170S | 170 mm | Basic (no mounting) | S · PT | $60.91 | |
| JSI40X175 | 175 mm | Basic (no mounting) | - · PT | $58.12 | |
| JSI40X175S | 175 mm | Basic (no mounting) | S · PT | $60.91 | |
| JSI40X175STC | 175 mm | TC center trunnion | S · PT | $84.18 | |
| JSI40X180 | 180 mm | Basic (no mounting) | - · PT | $59.78 | |
| JSI40X180S | 180 mm | Basic (no mounting) | S · PT | $62.57 | |
| JSI40X190S | 190 mm | Basic (no mounting) | S · PT | $62.57 | |
| JSI40X200 | 200 mm | Basic (no mounting) | - · PT | $59.78 | |
| JSI40X200S | 200 mm | Basic (no mounting) | S · PT | $62.57 | |
| JSI40X200SFA | 200 mm | FA front flange | S · PT | $69.54 | |
| JSI40X200STC | 200 mm | TC center trunnion | S · PT | $85.83 | |
| JSI40X210S | 210 mm | Basic (no mounting) | S · PT | $64.43 | |
| JSI40X220 | 220 mm | Basic (no mounting) | - · PT | $61.63 | |
| JSI40X220S | 220 mm | Basic (no mounting) | S · PT | $64.43 | |
| JSI40X225 | 225 mm | Basic (no mounting) | - · PT | $61.63 | |
| JSI40X225S | 225 mm | Basic (no mounting) | S · PT | $64.43 | |
| JSI40X230S | 230 mm | Basic (no mounting) | S · PT | $66.03 | |
| JSI40X240 | 240 mm | Basic (no mounting) | - · PT | $63.24 | |
| JSI40X240S | 240 mm | Basic (no mounting) | S · PT | $66.03 | |
| JSI40X240TC | 240 mm | TC center trunnion | - · PT | $86.50 | |
| JSI40X250 | 250 mm | Basic (no mounting) | - · PT | $63.24 | |
| JSI40X250S | 250 mm | Basic (no mounting) | S · PT | $66.03 | |
| JSI40X250LB | 250 mm | LB foot | - · PT | $66.50 | |
| JSI40X270S | 270 mm | Basic (no mounting) | S · PT | $69.54 | |
| JSI40X275 | 275 mm | Basic (no mounting) | - · PT | $66.75 | |
| JSI40X275S | 275 mm | Basic (no mounting) | S · PT | $69.54 | |
| JSI40X280S | 280 mm | Basic (no mounting) | S · PT | $69.54 | |
| JSI40X300 | 300 mm | Basic (no mounting) | - · PT | $66.75 | |
| JSI40X300S | 300 mm | Basic (no mounting) | S · PT | $69.54 | |
| JSI40X300TC | 300 mm | TC center trunnion | - · PT | $90.02 | |
| JSI40X300STC | 300 mm | TC center trunnion | S · PT | $92.81 | |
| JSI40X310S | 310 mm | Basic (no mounting) | S · PT | $73.01 | |
| JSI40X320STC | 320 mm | TC center trunnion | S · PT | $96.27 | |
| JSI40X330S | 330 mm | Basic (no mounting) | S · PT | $73.01 | |
| JSI40X330STC | 330 mm | TC center trunnion | S · PT | $96.27 | |
| JSI40X350 | 350 mm | Basic (no mounting) | - · PT | $70.22 | |
| JSI40X350S | 350 mm | Basic (no mounting) | S · PT | $73.01 | |
| JSI40X350TC | 350 mm | TC center trunnion | - · PT | $93.48 | |
| JSI40X350STC | 350 mm | TC center trunnion | S · PT | $96.27 | |
| JSI40X360S | 360 mm | Basic (no mounting) | S · PT | $76.53 | |
| JSI40X380S | 380 mm | Basic (no mounting) | S · PT | $76.53 | |
| JSI40X390S | 390 mm | Basic (no mounting) | S · PT | $76.53 | |
| JSI40X400 | 400 mm | Basic (no mounting) | - · PT | $73.74 | |
| JSI40X400S | 400 mm | Basic (no mounting) | S · PT | $76.53 | |
| JSI40X400CB | 400 mm | CB double clevis | - · PT | $82.57 | |
| JSI40X530S | 530 mm | Basic (no mounting) | S · PT | $91.16 | |
| JSI40X540S | 540 mm | Basic (no mounting) | S · PT | $91.16 | |
| JSI40X550 | 550 mm | Basic (no mounting) | - · PT | $88.37 | |
| JSI40X550S | 550 mm | Basic (no mounting) | S · PT | $91.16 | |
| JSI40X550STC | 550 mm | TC center trunnion | S · PT | $114.42 | |
| JSI40X560S | 560 mm | Basic (no mounting) | S · PT | $91.16 | |
| JSI40X800 | 800 mm | Basic (no mounting) | - · PT | $103.98 | |
| JSI40X800S | 800 mm | Basic (no mounting) | S · PT | $106.77 | |
| JSI40X800STC | 800 mm | TC center trunnion | S · PT | $130.03 | |
| JSI40X850S | 850 mm | Basic (no mounting) | S · PT | $114.68 | |
| JSI40X850STC | 850 mm | TC center trunnion | S · PT | $137.94 | |
| JSI40X900 | 900 mm | Basic (no mounting) | - · PT | $111.89 | |
| JSI40X900S | 900 mm | Basic (no mounting) | S · PT | $114.68 | |
| JSI40X1000 | 1000 mm | Basic (no mounting) | - · PT | $119.54 | |
| JSI40X1000S | 1000 mm | Basic (no mounting) | S · PT | $122.33 | |
| JSI40X1000TC | 1000 mm | TC center trunnion | - · PT | $142.80 | |
| JSI40X1000STC | 1000 mm | TC center trunnion | S · PT | $145.59 | |
| JSI40X1050STC | 1050 mm | TC center trunnion | S · PT | $190.73 | |
| JSI40X1100S | 1100 mm | Basic (no mounting) | S · PT | $132.57 | |
| JSI40X1200S | 1200 mm | Basic (no mounting) | S · PT | $142.80 | |
| JSI40X1500S | 1500 mm | Basic (no mounting) | S · PT | $173.51 |
Need a combination that is not listed? Request a quote.
Where the JSI40 Is Used
General automation
About 628 N at 0.5 MPa covers most pushing, lifting and indexing tasks.
Clamping fixtures
Rigid mountings hold the cylinder for clamps and presses.
Doors, gates and levers
Pivoting covers and brackets drive mechanisms that swing.
Choosing the Right JSI40 Configuration
Start with the stroke. Pick the exact travel your machine needs; a longer stroke adds length, weight and air consumption without adding force. If your length is not listed, request a quote and we will confirm whether it can be built.
Then choose the mounting. Basic (no code) uses the cylinder's own mounting holes. This bore is stocked with LB foot, FA front flange, FB rear flange, CA single clevis, CB double clevis, TC center trunnion. Foot and flange mountings hold the cylinder rigid for straight-line loads; clevis and trunnion mountings let it pivot when the load moves in an arc.
Finally pick the version: S adds a magnet for position sensors.
AirTAC JSI40 FAQ
No. Every JSI40 gives about 628 N push and 528 N pull at 0.5 MPa, whatever the stroke.
1/4" ports, PT thread as standard.
Brackets: LB foot, FA front flange, FB rear flange, CA single clevis, CB double clevis, TC center trunnion. Pick a pivoting cover or bracket when the load moves in an arc, a rigid one for straight-line loads.
Usually yes. Request a quote with the stroke, mounting and version and we will confirm whether it can be built, plus price and lead time.
0.15 to 1.0 MPa operating pressure (proof 1.5 MPa) and -20 to +70 °C on filtered air.
No. You can order a single JSI40. Orders are processed and handed to the carrier within 3-5 business days.
Buying the JSI40 from AirtacDistr
Genuine AirTAC parts
Every order code on this page is the AirTAC factory part number. Specifications follow the AirTAC Products Catalog 2026A. About us
Ready in 3-5 business days
That is our time to process the order and hand it to the carrier. No minimum order: a single piece can be ordered.
14-day returns, 1-year warranty
Return within 14 days of delivery; the buyer pays return shipping. The warranty covers defects not caused by misuse. Return policy
Engineering help
Send your application details and we will confirm the right order code, usually within 7-8 hours. Ask us
Page data checked against the live catalog on 2026-10-28.
Request a Quote for the JSI40
Send the order code, quantity and destination. We confirm price, stock and lead time, usually within 7-8 hours.