Airtac MI25~40 Stainless Steel Mini Cylinder MI32X250SR
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI32X250SR is a genuine double acting round-body mini air cylinder with a Ø32mm bore and 250mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ32 mm
- Stroke250 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 MI32X250SR
Delivering 402.2 N of push force at 0.5 MPa, the AirTAC MI32X250SR is a robust double-acting round-body mini cylinder built for demanding mid-force automation. Its stainless-steel barrel and Ø12 mm piston rod provide excellent resistance to mild corrosion and washdown, outperforming painted alternatives in damp environments. The 250 mm stroke operates at speeds from 30-800 mm/s, regulated via the 1/8" port.
This non-ISO-6432 unit relies on fixed TPU bumper pads to decelerate the stroke end, keeping the riveted construction compact. Equipped with a built-in magnet (-S), it supports CMSG, DMSG, and EMSG switches for precise position sensing. For real-world tasks, plan for a safe working load of roughly 241 N, which translates to lifting about 20.5 kg vertically with a 2:1 safety margin.
Airtac MI25~40 Stainless Steel Mini Cylinder MI32X250SR Technical Specifications
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI32X250SR |
|---|---|
| Series | MI mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 250 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. Note: the Ø32 bore is a larger, non-ISO-6432 size.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 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 MI32X250SR
| MI | round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×250 | 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 MI32X250SR Is Used
Package Diverting
Actuates routing gates on packaging lines, using the 402.2 N push force to redirect heavy cartons reliably at high speeds.
Clamp Mechanisms
Secures aluminum extrusions during machining operations, where the stainless build resists cutting fluid mist.
Vertical Part Lifting
Raises components weighing up to 20.5 kg between conveyor tiers, utilizing the 250 mm stroke for elevation changes.
Is the Airtac MI25~40 Stainless Steel Mini Cylinder MI32X250SR the Right Cylinder?
When sizing this 32 mm bore, stepping down to a 25 mm unit drops the output to 245.3 N, while moving up to a 40 mm bore yields 628.3 N at 0.5 MPa. The R back cover features an axial-in port orientation, and you can mount the body using LB foot, FA flange, SDB pivot, or TC trunnion hardware. Because the 250 mm stroke is relatively long, minimize side-loading to prevent rod bending and premature seal wear.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered, as the TPU bumpers only soften impact rather than locking the piston. If your application requires strict load holding on air loss, integrate an external rod lock or a pilot-operated check valve into the pneumatic circuit.
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 MI32X250SR FAQ
This double-acting cylinder uses a 1/8" port and generates 402.2 N push / 345.6 N pull at 0.5 MPa, and 563 N push / 483.8 N pull at 0.7 MPa. The theoretical maximum force is 82 kgf at 1.0 MPa.
No, the piston will drift if air is lost or the valve is centered. The fixed TPU bumper pads only decelerate the stroke end and do not act as a brake. For vertical load holding, you must add an external rod lock or pilot check valve.
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.
Request a Quote for Airtac MI25~40 Stainless Steel Mini Cylinder MI32X250SR
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.