Airtac MI25~40 Stainless Steel Mini Cylinder MI25X500R
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X500R is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 500mm 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
- Stroke500 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionFixed TPU bumper pads
- 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 MI25~40 Stainless Steel Mini Cylinder MI25X500R
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles substantial work within a compact footprint. The Ø25 mm bore conforms to ISO 6432 mounting dimensions, dropping directly into standard mini-cylinder brackets and clevises for easy design integration. Its stainless barrel and piston rod resist mild corrosion, offering a real advantage over painted alternatives in damp or washdown environments.
This specific SKU features an R back cover with an axial-in port orientation and lacks a magnet, meaning it cannot host CMSG, DMSG, or EMSG reed switches without upgrading to the -S variant. Fixed TPU bumper pads decelerate the piston at both stroke ends. For practical sizing, plan for a safe working load of roughly 147 N (about 60 percent of the 0.5 MPa rating), which translates to lifting approximately 12.5 kg vertically with a 2:1 safety margin.
Airtac MI25~40 Stainless Steel Mini Cylinder MI25X500R Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X500R |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 500 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 | 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 | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MI25~40 Stainless Steel Mini Cylinder MI25X500R
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×500 | 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 MI25~40 Stainless Steel Mini Cylinder MI25X500R Is Used
Package Diverting Gate
Actuates a routing flap on a packaging line, using the 245 N push force to redirect cartons weighing up to 12 kg at a 2:1 safety margin.
Pneumatic Press Ejector
Kicks stamped metal parts out of a die fixture, leveraging the 500 mm stroke to clear the press bed entirely before the next cycle.
Vertical Lift Gate
Raises and lowers a lightweight access door on a food-handling conveyor, relying on the stainless steel construction for washdown durability.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI25X500R the Right Cylinder?
When sizing this 500 mm stroke model, consider the neighbouring bores: stepping down to the Ø20 provides 157 N of push at 0.5 MPa, while stepping up to the non-ISO Ø32 yields 402.2 N. A 500 mm stroke on a Ø25 barrel demands careful attention to side loading, as long extensions increase the risk of rod bending, requiring precise guide alignment. The 1/8" port and M10x1.25 male rod thread are fixed by the bore.
Because this is a base double-acting cylinder, it will drift if air pressure is lost or the valve is centred; the TPU bumpers only soften the end-of-stroke impact and act neither as a lock nor a brake. To suspend a load safely mid-stroke, incorporate an external pilot-operated check valve or a dedicated rod lock. Furthermore, since this configuration lacks the -S magnet, position sensing is not supported out of the box.
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 0.15 – 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 MI25~40 Stainless Steel Mini Cylinder MI25X500R FAQ
This double-acting cylinder uses a 1/8" air port and an M10x1.25 male rod thread. It generates 245.3 N push and 206.1 N pull at 0.5 MPa, increasing to 343.4 N push and 288.5 N pull at 0.7 MPa. The theoretical maximum force is 50 kgf at 1.0 MPa.
No, this specific SKU does not include a piston magnet, so it cannot support CMSG, DMSG, or EMSG switches. You would need the -S variant for sensing. It uses fixed TPU bumper pads for end-of-stroke deceleration rather than an adjustable air cushion, and its ISO 6432 mounting dimensions fit standard mini-cylinder brackets.
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