AirTAC JSI125 Standard Air Cylinder, 125 mm Bore
Every AirTAC JSI125 configuration on one page: 113 stock order codes with strokes from 10 to 1550 mm and 7 mountings, from $207.01. 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 JSI125
The AirTAC JSI125 is a double-acting standard air cylinder with a 125 mm bore and a 32 mm piston rod. At 0.5 MPa it pushes 6136 N and pulls 5734 N; at 0.7 MPa that rises to 8590 N push and 8027 N pull. Force depends on bore and pressure only, so every stroke on this page gives the same output.
All JSI125 versions share 1/2" air ports, an M27×2.0 rod thread and 33 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 500 mm/s. This page lists 113 stock order codes with strokes from 10 to 1550 mm; the catalog maximum stroke is 1500 mm, and the longer codes are non-standard strokes we already supply.
JSI125 Technical Specifications
| Bore size | Ø125 mm |
|---|---|
| Stock strokes | 10 – 1550 mm |
| Catalog maximum stroke | 1500 mm (longer on request) |
| Acting type | Double acting |
| Port size | 1/2" (PT standard) |
| Piston rod / rod thread | Ø32 mm / M27×2.0 |
| 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 – 500 mm/s |
| Cushion | Adjustable air cushion, 33 mm |
Source: AirTAC Products Catalog 2026A (PDF01-P0420), JSI series ordering code and specifications.
Theoretical output force (Ø125 mm)
| Pressure | Push | Pull |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | 8027 N |
Push = pressure × bore area; pull subtracts the Ø32 mm rod area. Usable force is lower because of friction and back-pressure.
How the JSI125 Order Code Is Built
| JSI125 | Series and bore (125 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 JSI125 Order Codes (113)
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 |
|---|---|---|---|---|---|
| JSI125X10S | 10 mm | Basic (no mounting) | S · PT | $213.06 | |
| JSI125X15 | 15 mm | Basic (no mounting) | - · PT | $207.01 | |
| JSI125X15S | 15 mm | Basic (no mounting) | S · PT | $213.06 | |
| JSI125X20 | 20 mm | Basic (no mounting) | - · PT | $207.01 | |
| JSI125X25 | 25 mm | Basic (no mounting) | - · PT | $207.01 | |
| JSI125X25S | 25 mm | Basic (no mounting) | S · PT | $213.06 | |
| JSI125X30 | 30 mm | Basic (no mounting) | - · PT | $211.20 | |
| JSI125X30S | 30 mm | Basic (no mounting) | S · PT | $217.24 | |
| JSI125X35 | 35 mm | Basic (no mounting) | - · PT | $211.20 | |
| JSI125X65S | 65 mm | Basic (no mounting) | S · PT | $224.23 | |
| JSI125X70 | 70 mm | Basic (no mounting) | - · PT | $218.18 | |
| JSI125X70S | 70 mm | Basic (no mounting) | S · PT | $224.23 | |
| JSI125X75 | 75 mm | Basic (no mounting) | - · PT | $218.18 | |
| JSI125X75S | 75 mm | Basic (no mounting) | S · PT | $224.23 | |
| JSI125X75TC | 75 mm | TC center trunnion | - · PT | $290.29 | |
| JSI125X75STC | 75 mm | TC center trunnion | S · PT | $296.34 | |
| JSI125X80 | 80 mm | Basic (no mounting) | - · PT | $224.95 | |
| JSI125X80S | 80 mm | Basic (no mounting) | S · PT | $231.00 | |
| JSI125X80TC | 80 mm | TC center trunnion | - · PT | $297.07 | |
| JSI125X85 | 85 mm | Basic (no mounting) | - · PT | $224.95 | |
| JSI125X85TC | 85 mm | TC center trunnion | - · PT | $297.07 | |
| JSI125X90 | 90 mm | Basic (no mounting) | - · PT | $224.95 | |
| JSI125X90S | 90 mm | Basic (no mounting) | S · PT | $231.00 | |
| JSI125X90STC | 90 mm | TC center trunnion | S · PT | $303.12 | |
| JSI125X100 | 100 mm | Basic (no mounting) | - · PT | $224.95 | |
| JSI125X100S | 100 mm | Basic (no mounting) | S · PT | $231.00 | |
| JSI125X100CA | 100 mm | CA single clevis | - · PT | $272.62 | |
| JSI125X100TC | 100 mm | TC center trunnion | - · PT | $297.07 | |
| JSI125X100STC | 100 mm | TC center trunnion | S · PT | $303.12 | |
| JSI125X110 | 110 mm | Basic (no mounting) | - · PT | $231.93 | |
| JSI125X110TC | 110 mm | TC center trunnion | - · PT | $304.05 | |
| JSI125X120 | 120 mm | Basic (no mounting) | - · PT | $231.93 | |
| JSI125X120S | 120 mm | Basic (no mounting) | S · PT | $237.98 | |
| JSI125X125 | 125 mm | Basic (no mounting) | - · PT | $231.93 | |
| JSI125X125S | 125 mm | Basic (no mounting) | S · PT | $237.98 | |
| JSI125X125SFB | 125 mm | FB rear flange | S · PT | $284.51 | |
| JSI125X125TC | 125 mm | TC center trunnion | - · PT | $304.05 | |
| JSI125X130S | 130 mm | Basic (no mounting) | S · PT | $244.95 | |
| JSI125X135 | 135 mm | Basic (no mounting) | - · PT | $238.91 | |
| JSI125X135S | 135 mm | Basic (no mounting) | S · PT | $244.95 | |
| JSI125X140 | 140 mm | Basic (no mounting) | - · PT | $238.91 | |
| JSI125X140S | 140 mm | Basic (no mounting) | S · PT | $244.95 | |
| JSI125X140LB | 140 mm | LB foot | - · PT | $285.43 | |
| JSI125X140TC | 140 mm | TC center trunnion | - · PT | $311.03 | |
| JSI125X150 | 150 mm | Basic (no mounting) | - · PT | $238.91 | |
| JSI125X150S | 150 mm | Basic (no mounting) | S · PT | $244.95 | |
| JSI125X150TC | 150 mm | TC center trunnion | - · PT | $311.03 | |
| JSI125X150STC | 150 mm | TC center trunnion | S · PT | $317.07 | |
| JSI125X160 | 160 mm | Basic (no mounting) | - · PT | $245.89 | |
| JSI125X160S | 160 mm | Basic (no mounting) | S · PT | $251.94 | |
| JSI125X165S | 165 mm | Basic (no mounting) | S · PT | $251.94 | |
| JSI125X175 | 175 mm | Basic (no mounting) | - · PT | $245.89 | |
| JSI125X175S | 175 mm | Basic (no mounting) | S · PT | $251.94 | |
| JSI125X180 | 180 mm | Basic (no mounting) | - · PT | $252.86 | |
| JSI125X180S | 180 mm | Basic (no mounting) | S · PT | $258.91 | |
| JSI125X182S | 182 mm | Basic (no mounting) | S · PT | $258.91 | |
| JSI125X200 | 200 mm | Basic (no mounting) | - · PT | $252.86 | |
| JSI125X200S | 200 mm | Basic (no mounting) | S · PT | $258.91 | |
| JSI125X200FA | 200 mm | FA front flange | - · PT | $299.39 | |
| JSI125X200FB | 200 mm | FB rear flange | - · PT | $299.39 | |
| JSI125X200TC | 200 mm | TC center trunnion | - · PT | $324.99 | |
| JSI125X200STC | 200 mm | TC center trunnion | S · PT | $331.03 | |
| JSI125X210 | 210 mm | Basic (no mounting) | - · PT | $259.85 | |
| JSI125X210S | 210 mm | Basic (no mounting) | S · PT | $265.89 | |
| JSI125X210SCB | 210 mm | CB double clevis | S · PT | $319.40 | |
| JSI125X220S | 220 mm | Basic (no mounting) | S · PT | $265.89 | |
| JSI125X225 | 225 mm | Basic (no mounting) | - · PT | $259.85 | |
| JSI125X225S | 225 mm | Basic (no mounting) | S · PT | $265.89 | |
| JSI125X230 | 230 mm | Basic (no mounting) | - · PT | $253.52 | |
| JSI125X230S | 230 mm | Basic (no mounting) | S · PT | $272.87 | |
| JSI125X235S | 235 mm | Basic (no mounting) | S · PT | $272.87 | |
| JSI125X240 | 240 mm | Basic (no mounting) | - · PT | $266.82 | |
| JSI125X250 | 250 mm | Basic (no mounting) | - · PT | $266.82 | |
| JSI125X250S | 250 mm | Basic (no mounting) | S · PT | $272.87 | |
| JSI125X250FA | 250 mm | FA front flange | - · PT | $313.35 | |
| JSI125X250CA | 250 mm | CA single clevis | - · PT | $314.49 | |
| JSI125X250TC | 250 mm | TC center trunnion | - · PT | $338.94 | |
| JSI125X250STC | 250 mm | TC center trunnion | S · PT | $344.99 | |
| JSI125X260S | 260 mm | Basic (no mounting) | S · PT | $286.83 | |
| JSI125X275 | 275 mm | Basic (no mounting) | - · PT | $280.78 | |
| JSI125X275S | 275 mm | Basic (no mounting) | S · PT | $286.83 | |
| JSI125X280 | 280 mm | Basic (no mounting) | - · PT | $280.78 | |
| JSI125X280S | 280 mm | Basic (no mounting) | S · PT | $286.83 | |
| JSI125X285 | 285 mm | Basic (no mounting) | - · PT | $280.78 | |
| JSI125X290S | 290 mm | Basic (no mounting) | S · PT | $286.83 | |
| JSI125X300 | 300 mm | Basic (no mounting) | - · PT | $280.78 | |
| JSI125X300S | 300 mm | Basic (no mounting) | S · PT | $286.83 | |
| JSI125X300FA | 300 mm | FA front flange | - · PT | $327.31 | |
| JSI125X300SCA | 300 mm | CA single clevis | S · PT | $334.50 | |
| JSI125X300TC | 300 mm | TC center trunnion | - · PT | $352.90 | |
| JSI125X325S | 325 mm | Basic (no mounting) | S · PT | $300.79 | |
| JSI125X330S | 330 mm | Basic (no mounting) | S · PT | $300.79 | |
| JSI125X650STC | 650 mm | TC center trunnion | S · PT | $473.61 | |
| JSI125X700 | 700 mm | Basic (no mounting) | - · PT | $395.45 | |
| JSI125X700S | 700 mm | Basic (no mounting) | S · PT | $401.50 | |
| JSI125X800 | 800 mm | Basic (no mounting) | - · PT | $424.76 | |
| JSI125X800S | 800 mm | Basic (no mounting) | S · PT | $430.81 | |
| JSI125X800TC | 800 mm | TC center trunnion | - · PT | $496.88 | |
| JSI125X900 | 900 mm | Basic (no mounting) | - · PT | $454.33 | |
| JSI125X900S | 900 mm | Basic (no mounting) | S · PT | $460.38 | |
| JSI125X900TC | 900 mm | TC center trunnion | - · PT | $526.45 | |
| JSI125X900STC | 900 mm | TC center trunnion | S · PT | $532.50 | |
| JSI125X1000 | 1000 mm | Basic (no mounting) | - · PT | $483.85 | |
| JSI125X1000S | 1000 mm | Basic (no mounting) | S · PT | $489.90 | |
| JSI125X1000FB | 1000 mm | FB rear flange | - · PT | $530.38 | |
| JSI125X1000STC | 1000 mm | TC center trunnion | S · PT | $562.02 | |
| JSI125X1100 | 1100 mm | Basic (no mounting) | - · PT | $514.56 | |
| JSI125X1100S | 1100 mm | Basic (no mounting) | S · PT | $520.61 | |
| JSI125X1200S | 1200 mm | Basic (no mounting) | S · PT | $551.31 | |
| JSI125X1330 | 1330 mm | Basic (no mounting) | - · PT | $606.68 | |
| JSI125X1500 | 1500 mm | Basic (no mounting) | - · PT | $637.39 | |
| JSI125X1500S | 1500 mm | Basic (no mounting) | S · PT | $643.44 | |
| JSI125X1550S | 1550 mm | Basic (no mounting) | S · PT | $674.15 |
Need a combination that is not listed? Request a quote.
Where the JSI125 Is Used
High-force actuation
Over 6.1 kN at 0.5 MPa for presses, lifting tables and dampers.
Process and material handling
Opens chutes, gates and dampers on bulk-handling equipment.
Pivoting heavy loads
Clevis and trunnion versions swing large doors and platforms.
Choosing the Right JSI125 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 JSI125 FAQ
No. Every JSI125 gives about 6136 N push and 5734 N pull at 0.5 MPa, whatever the stroke.
1/2" 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 JSI125. Orders are processed and handed to the carrier within 3-5 business days.
Buying the JSI125 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 JSI125
Send the order code, quantity and destination. We confirm price, stock and lead time, usually within 7-8 hours.