Airtac JSI Series Standard Cylinder JSI100X70
The AirTAC Airtac JSI Series Standard Cylinder JSI100X70 is a genuine double acting JIS-standard air cylinder with a Ø100mm bore and 70mm 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
- Stroke70 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 JSI100X70
Delivering 3927 N of push force at 0.5 MPa, the AirTAC JSI100X70 is a double-acting JIS-standard profile cylinder built for heavy machinery. Its extruded hard-anodized aluminum barrel omits external rods, making it shorter and more compact than an ISO 15552 cylinder of the same 100 mm bore. The two-way piston seal retains grease for a long, low-friction service life, while the G1/2 port handles the necessary air volume.
Plan for roughly 2356 N of real work at 0.5 MPa, which translates to lifting about 200 kg vertically with a 2:1 safety margin. Because this specific SKU lacks the -S magnet, it cannot accept CMSE or DMSE position switches; choose the -S variant if you need drop-in side-groove sensing. Adjustable 33 mm air cushions at both ends decelerate the payload smoothly at stroke extremes.
Airtac JSI Series Standard Cylinder JSI100X70 Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI100X70 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 70 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 JSI100X70
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×70 | 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 JSI100X70 Is Used
Injection Mold Clamping
Provides robust 3927 N push force to secure heavy injection mold halves within compact machinery frames.
Press Ejection Systems
Ejects dense formed metal parts from presses using a 70 mm stroke and 3574 N of retract pull force.
Pallet Stopper Gates
Halts loaded pallets on conveyors, safely managing high kinetic energy with 33 mm adjustable end cushions.
Is the Airtac JSI Series Standard Cylinder JSI100X70 the Right Cylinder?
When sizing this 100 mm bore, stepping down to a JSI63 yields 1559 N of push at 0.5 MPa, while moving up to a JSI125 provides 6136 N. At a 70 mm stroke, side-load stress is minimal, but always guide the rod end to prevent premature seal wear. Remember that a standard cylinder drifts when air is lost or the valve is centered; the cushions only decelerate the piston and will not hold a load. For vertical applications, install an external rod lock or a pilot-operated check valve. Mounting options include LB foot, FA/FB flange, CA/CB/CR clevis, TC/TCM1/TCM2 trunnion, plus I, Y, F, or U rod knuckles.
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 JSI100X70 FAQ
At 0.5 MPa it pushes 3927 N and pulls 3574 N. At 0.7 MPa it pushes 5497 N and pulls 5003 N. The theoretical maximum is 801 kgf at 1.0 MPa. The air port is G1/2.
It is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same bore, saving space. It uses a hard-anodized aluminum barrel with no external rods.
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.
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