Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI25X100R
The AirTAC Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI25X100R is a genuine single acting, push (spring return) round-body mini air cylinder with a Ø25mm bore and 100mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
- BoreØ25 mm
- Stroke100 mm
- Port size1/8"
- Acting typeSingle acting, push (spring return)
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
About the Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI25X100R
Delivering 190.3 N of net push force at 0.5 MPa, this stainless-steel round-body mini cylinder uses compressed air to extend and an internal spring to retract. Because it is single-acting, you only need one 1/8 inch air line, saving plumbing and ensuring the rod fails safe to the retracted position if air pressure drops. The Ø10 mm piston rod features an M10x1.25 male thread.
Built to ISO 6432 mounting dimensions, it drops into standard mini brackets and clevises. The stainless barrel and rod resist mild washdown corrosion. This 100 mm travel unit is a made-to-order configuration, exceeding the 80 mm standard spring limit for this bore. It has an R axial-in rear cover, fixed TPU bumpers, and no magnet (so it cannot take CMSG/DMSG/EMSG sensors). For sizing, expect a safe working load around 114 N, or vertical lifting of about 9.7 kg with a 2:1 margin.
Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI25X100R Technical Specifications
| Model | Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI25X100R |
|---|---|
| Series | MSI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 100 mm |
| Acting type | Single acting, push (spring return) |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Cushion | Fixed TPU bumper pads |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G.
Theoretical Output Force (Ø25mm)
| Pressure | Push force (spring return) |
|---|---|
| 0.5 MPa | 190.3 N |
| 0.7 MPa | 288.4 N |
Single-acting push: air extends the rod; the return spring retracts it. Forces already net the spring; minimum working pressure is 0.2 MPa.
Model Code: Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI25X100R
| MSI | ISO 6432 round-body mini cylinder (single-acting push, spring-return). |
|---|---|
| 25 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MI-family variants: MI / MIC (double acting ±cushion), MSI / MTI (single acting push / pull), MID / MICD (double rod ±cushion), MIJ / MICJ (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI25X100R Is Used
Heavy Part Ejection
Pushes finished metal parts out of a machining fixture with 190.3 N, using the spring return to clear the path safely on air loss.
Package Diverting Gate
Acts as a spring-return gating pin on a packaging line, holding a 9.7 kg load margin and retracting automatically when the air stops.
Pallet Stopper Pin
Extends to halt pallet movement on a roller conveyor, relying on the fail-safe retract to release the pallet during an emergency stop.
Is the Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI25X100R the Right Cylinder?
When sizing by push force, this Ø25 bore yields 190.3 N at 0.5 MPa. If you need less force, step down to the Ø20 bore which provides 119.5 N; if you need more, step up to the Ø32 bore offering 352.1 N. Remember the internal spring requires at least 0.2 MPa to overcome before the rod will extend. Also note this 100 mm stroke is non-standard and made-to-order because single-acting springs are typically limited to 80 mm here. If you need position sensing, select the -S magnet variant instead of this SKU, and match your mounting using LB, FA, SDB, or TC hardware.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.2 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check Use correct back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MSI Single Acting Stainless Steel Mini Cylinder MSI25X100R FAQ
It provides 190.3 N of push force at 0.5 MPa and 288.4 N at 0.7 MPa. It requires at least 0.2 MPa of air pressure to overcome the internal return spring. When air is released, the spring drives the rod back to the retracted rest position.
No, this specific SKU lacks a magnet and cannot take CMSG, DMSG, or EMSG sensors; you must order the -S variant for sensing. It is a single-acting push cylinder with a stainless round body, not a double-acting profile cylinder, and uses fixed TPU bumpers rather than adjustable air cushions.
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